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data sheet january 26, 2011 qbk033a0b se ries power modules; dc-dc converters 36-60 vdc input; 12vdc outp ut; 33a output current * ul is a registered trademark of underwriters laboratories, inc. ? csa is a registered trademark of canadian standards association. ? vde is a trademark of verband deutscher elektrotechniker e.v. ** iso is a registered trademark of the international organization of standards ieee and 802 are registered trademarks of the institute of electrical and electronics engineers, incorporated. document no: ds05-018 ver 1.22 pdf name: qbk033a0b.pdf features ? compliant to rohs eu directive 2002/95/ec (-z versions) ? compliant to rohs eu directive 2002/95/ec with lead solder exemption (non-z versions ? high efficiency ? 94.5% at 12v full load ? delivers up to 33a output current ? low output ripple and noise ? industry standard quarter brick: 57.9 mm x 36.8 mm x 10.6 mm (2.28 in x 1.45 in x 0.42 in) ? constant switching frequency ? positive remote on/off logic ? output over current/voltage protection ? over temperature protection ? wide operating temperature range (-40c to 85c) ? iso** 9001 certified manufacturing facilities ? ul * 60950-1 recognised, csa ? c22.2 no. 60950-3-01 certified, and en 60950-1 ( vde ? 0805): 2001-12 licensed ? 2250 vdc isolation tested in compliance with ieee 802.3 poe standards applications ? distributed power architectures ? intermediate bus voltage applications ? servers and storage applications ? networking equipment including power over ethernet (poe) options ? negative remote on/off logic ? active load sharing (parallel operation) ? baseplate option (-h) ? auto restart after fault shutdown ? case ground pin description the qbk033a0b series of dc-dc converters are a new generation of dc/dc power modules designed to support 12vdc intermediate bus applications where multiple low voltages are subsequently generated using point of load (pol) converters. the qbk033a0b series operate off an input voltage range from 36 to 60vdc and provide up to 33a output current at 12v in an industry standard quarter brick. the converter incorporates synchronous rectification technology and innovative packaging techniques to achieve efficiency reaching 94.5% at 12v full load. this leads to lower power dissipations such that for many applications a heat sink is not required. the output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. built- in filtering for both input and output minimizes the need for external filtering. this product is affected by a permanent injunction entered by the united states district court for the eastern district of texas, marshall division in civil action no. 2:07-cv-00497-tjw-ce (copy enclosed). as set forth in that order, certain acts associated with this product are prohibited. this product is not for sale in, use in, or importation into the united states. rohs compliant
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current lineage power 2 absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect device reliability. parameter device symbol min max unit input voltage* continuous v in -0.3 60 vdc non- operating continuous v in -0.3 75 vdc operating ambient temperature all t a -40 85 c (see thermal considerations section) storage temperature all t stg -55 125 c i/o isolation voltage (100% factory hi-pot tested) all ? ? 2250 vdc * input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level. electrical specifications unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. parameter device symbol min typ max unit operating input voltage v in 36 48 60 vdc maximum input current i in,max - - 13 adc (v in =0v to 60v, i o =i o, max ) inrush transient all i 2 t - - 1 a 2 s input reflected ripple current, peak-to-peak (5hz to 20mhz, 12 h source impedance; v in = 48v, i o = i omax ; see figure 9) all - 24 - map-p input ripple rejection (120hz) all 50 - db caution: this power module is not internally fused. an input line fuse must always be used. this power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of sophisticated power architecture. to preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. the safety agencies require a fast-acting fuse with a maximum rating of 30 a (see safety considerations section). based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. refer to the fuse manufacturer?s data sheet for further information.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current lineage power 3 electrical specifications (continued) parameter device symbol min typ max unit output voltage set-point (v in =v in,nom , i o =15a, t a =25c) all v o, set 12 v dc output voltage (over all operating input voltage, resistive load, and temperature conditions until end of life) v o 11.4 ? 12.6 v dc output regulation line (v in =v in, min to v in, max ) all ? 0.2 0.3 %vo load (i o =i o, min to i o, max ) all ? 3 5 %vo temperature (t a = -40oc to +85oc) all ? 150 250 mv output ripple and noise on nominal output (v in =v in, nom and i o =i o, min to i o, max ) rms (5hz to 20mhz bandwidth) all ? 70 ? mv rms peak-to-peak (5hz to 20mhz bandwidth) all ? 200 ? mv pk-pk external capacitance all c o, max 0 ? 10,000 f output current all i o 0 33 adc output current limit inception all i o, lim ? 38 ? adc efficiency v in =v in, nom , t a =25c i o =i o, max , v o = v o,set all ? 94.5 ? % switching frequency f sw ? 300 ? khz dynamic load response (dio/dt=1a/10 ? s; v in =v in ,nom; t a =25c; tested with a 10 f aluminum and a 1.0 f tantalum capacitor across the load.) load change from io= 50% to 75% of io,max: peak deviation settling time (vo<10% peak deviation) all v pk t s ? __ 300 700 ? __ mv ? s load change from io= 75% to 50% of io,max: peak deviation settling time (vo<10% peak deviation) v pk t s __ __ 300 700 __ mv ? s isolation specifications parameter symbol min typ max unit isolation capacitance c iso ? 2000 ? pf isolation resistance r iso 10 ? ? m ?
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current 4 lineage power general specifications parameter device min typ max unit calculated mtbf (i o =80% of i o, max , t a =40c, airflow=1m/s(200lfm)) all 1,423,448 hours weight ? open frame ? 49 (1.73) ? g (oz.) weight ? with baseplate option ? 63.5 (2.24) ? g (oz.) feature specifications unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. see feature descriptions for additional information. parameter device symbol min typ max unit remote on/off signal interface (v in =v in, min to v in, max , signal referenced to v in- terminal) negative logic: device code suffix ?1? lo g ic low = module on, lo g ic hi g h = module of f positive logic: no device code suffix required logic low = module off, logic high = module on logic low specification on/off thresholds: remote on/off current ? logic low all i on/off 5 10 15 a logic low voltage all v on/off -0.3 ? 0.8 v logic high voltage ? (typ = open collector) all v on/off 2.0 ? 3.5 v logic high maximum allowable leakage current (v on/off = 2.0v) all i on/off ? ? 4.0 a maximum voltage allowed on on/off pin all v on/off ? ? 13.5 v turn-on delay and rise times (i o =i o, max ) t delay, enable with vin t delay = time until v o = 10% of v o,set from either application of vin with remote on/off set to on or operation of remote on/off from off to on with vin already applied for at least one second. all ? 20 ? ms t delay , enable with on/off all ? 5 ? ms t rise = time for v o to rise from 10% of v o,set to 90% of v o,set . (min @ v in,max , typ@ v in,nom , max @ v in,min ) t rise 29 40 68 ms output overvoltage protection (clamp) all 13 ? 15 v overtemperature protection all t ref ? 125 ? c (see feature descriptions) input undervoltage lockout turn-on threshold ? 35 36 v turn-off threshold 32 34 ? v
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current lineage power 5 characteristic curves the following figures provide typical characteristics for the qbk033a0b (12v, 33a) at 25oc. the figures are identical for either positive or negative remote on/off logic. input current, i i (a) 0 2 4 6 8 10 12 14 30 33 36 39 42 45 48 51 54 57 60 io=0a io=16a io=32a on/off voltage output voltage v on/off (v) (2v/div) v o (v) (5v/div) input voltage, v o (v) time, t (10 ms/div) figure 1. typical input characteristic at room temperature. figure 4. typical start-up using remote on/off, negative logic version shown. effciency, (%) 86 87 88 89 90 91 92 93 94 95 96 0 5 10 15 20 25 30 35 vin=36v vin=48v vin=60v output voltage, output current (v) (200mv/div) i o (a) (5a/div) output current, i o (a) time, t (500 s/div) figure 2. typical converter efficiency vs. output current at room temperature. figure 5. typical transient response to step change in load from 25% to 50% to 25% of full load at room temperature and 48 vdc input. output voltage, v o (v) (100mv/div) output voltage, output current (v) (200mv/div) i o (a) (5a/div) time, t (1 ? s/div) time, t (500 s/div) figure 3. typical output ripple and noise at room temperature and i o = i o,max . figure 6. typical transient response to step change in load from 50% to 75% to 50% of full load at room temperature and 48 vdc input. 36 vin 48 vin 60 vin
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current 6 lineage power characteristic curves (continued) . output voltage, v o (v) 11.6 11.7 11.8 11.9 12 12.1 35 40 45 50 55 60 io =0a io=16a io=33a input voltage, v in (v) figure 7. typical output voltage regulation vs. input voltage at room temperature. output voltage, v o (v) 11.5 11.6 11.7 11.8 11.9 12 12.1 0 5 10 15 20 25 30 35 vin=36v vin=48v vin=60v output current, i o (a) figure 8. typical output voltage regulation vs. output current at room temperature.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current lineage power 7 test configurations note: measure input reflected-ripple current with a simulated source inductance (ltest) of 12 h. capacitor cs offsets possible battery impedance. measure current as shown above. figure 9. input reflected ripple current test setup. note: use a 1.0 f ceramic capacitor and a 10 f aluminum or tantalum capacitor. scope measurement should be made using a bnc socket. position the load between 51 mm and 76 mm (2 in. and 3 in.) from the module. figure 10. output ripple and noise test setup. load contact and supply i i contact v i (+) v i (?) v o1 distribution losses resistance i o v o2 note: all measurements are taken at the module terminals. when socketing, place kelvin connections at module terminals to avoid measurement errors due to socket contact resistance. figure 11. output voltage and efficiency test setup. design considerations input source impedance the power module should be connected to a low ac-impedance source. a highly inductive source impedance can affect the stability of the power module. for the test configuration in figure 9, a 100 f electrolytic capacitor (esr<0.7 ? at 100khz), mounted close to the power module helps ensure the stability of the unit. consult the factory for further application guidelines. safety considerations for safety-agency approval of the system in which the power module is used, the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standard, i.e., ul 1950, csa c22.2 no. 60950-00, and vde 0805:2001-12 (iec60950 3 rd ed). if the input source is non-selv (elv or a hazardous voltage greater than 60 vdc and less than or equal to 75vdc), for the module?s output to be considered as meeting the requirements for safety extra-low voltage (selv), all of the following must be true: ? the input source is to be provided with reinforced insulation from any other hazardous voltages, including the ac mains. ? one v in pin and one v out pin are to be grounded, or both the input and output pins are to be kept floating. ? the input pins of the module are not operator accessible. ? another selv reliability test is conducted on the whole system (combination of supply source and subject module), as required by the safety agencies, to verify that under a single fault, hazardous voltages do not appear at the module?s output. note: do not ground either of the input pins of the module without grounding one of the output pins. this may allow a non-selv voltage to appear between the output pins and ground. the power module has extra-low voltage (elv) outputs when all inputs are elv. the input to these units is to be provided with a maximum 30 a fast-acting (or time-delay) fuse in the unearthed lead.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current 8 lineage power feature descriptions overcurrent protection to provide protection in a fault output overload condition, the module is equipped with internal current-limiting circuitry and can endure current limiting for a few mili- seconds. if the overcurrent condition persists beyond a few milliseconds, the module wi ll shut down and remain latched off. the overcurrent latch is reset by either cycling the input power or by toggling the on/off pin for one second. if the output overload condition still exists when the module restarts, it will shut down again. this operation will continue indefinitely until the overcurrent condition is corrected. an auto-restart option is also available. an auto-restart feature continually attempts to restore the operation until fault condition is cleared. remote on/off two remote on/off options are available. positive logic remote on/off turns the module on during a logic-high voltage on the on/off pin, and off during a logic low. negative logic remote on/off turns the module off during a logic high and on during a logic low. negative logic, device code suffix "1," is the factory-preferred configuration. the on/off circuit is powered from an internal bias supply. to turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the vi (-) terminal (von/off). the switch can be an open collector or equivalent (see figure 12). a logic low is von/off = -0.3v to 0.8v. the typical ion/off during a logic low is 10 a. the switch should maintain a logic-low voltage while sinking 10a. during a logic high, the maximum von/off generated by the power module is 3.5v. the maximum allowable leakage current of the switch at von/off = 2.0v is 4a. if using an external voltage source, the maximum voltage v on/off on the pin is 13.5v with respect to the vi (-) terminal. if not using the remote on/off feature, perform one of the following to turn the unit on: for negative logic, short on/off pin to vi(-). for positive logic: leave on/off pin open. v o (+) v o (?) v i (?) + ? i on/off on/off v i (+) loa d v on/off figure 12. remote on/off implementation. output overvoltage clamp the output overvoltage clamp consists of a control circuit, independent of the primary regulation loop, that monitors the voltage on the output terminals and clamps the voltage when it exceeds the overvoltage set point. the control loop of the clamp has a higher voltage set point than the primary loop. this provides a redundant voltage control that redu ces the risk of output overvoltage. overtemperature protection these modules feature an overtemperature protection circuit to safeguard against thermal damage. the circuit shuts down and latches off the module when the maximum device reference temperature is exceeded. the module can be restarted by cycling the dc input power for at least one second or by toggling the remote on/off signal for at least one second. input under/over voltage lockout at input voltages above or below the input under/over voltage lockout limits, module operation is disabled. the module will begin to operate when the input voltage level changes to within the under and overvoltage lockout limits. forced load sharing (parallel operation with ?p option) for additional power requirements, the power module can be configured for parallel operation with forced load sharing. good layout techniques should be observed for noise immunity when using multiple units in parallel. to implement forced load sharing, the following connections should be made: ? the share pins of all units in parallel must be connected together. the path of these connections should be as direct as possible. ? the on/off pins of all modules should also be tied together so that the modules are turned on and off at the same time. ? these modules do not block reverse current flow upon start-up, and can sink large currents from the energized output bus, which may cause other converters to reach their overcurrent limits, and/or exceed this module?s device internal ratings. the use of or?ing diodes or fets to block reverse current flow is strongly encouraged to prevent module damage, or abnormal tripping of other parallel converters. when not using the parallel feature, leave the share pin open. the auto-restart option (4) is not available for modules with the parallel, -p, option.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current lineage power 9 feature descriptions (continued) thermal considerations the power modules operate in a variety of thermal environments and sufficient cooling should be provided to help ensure reliable operation. thermal considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. a reduction in the operating temperature of the module will result in an increase in reliability. the thermal data presented here is based on physical measurements taken in a wind tunnel. heat-dissipating components are mounted on the top side of the module. heat is removed by conduction, convection and radiation to the surrounding environment. proper cooling can be verified by measuring the thermal reference temperature (t h ). peak temperature (t h ) occurs at the position indicated in figure 13. for reliable operation this temperature should not exceed the listed temperature threshold. figure 13. location of the thermal reference temperature t h . the output power of the module should not exceed the rated power for the module as listed in the ordering information table. although the maximum t h temperature of the power modules is 110 c - 115 c, you can limit this temperature to a lower value for extremely high reliability. please refer to the application note ?thermal characterization process for open-frame board- mounted power modules? for a detailed discussion of thermal aspects including maximum device temperatures. heat transfer via convection increased airflow over the module enhances the heat transfer via convection. the thermal derating figures (14-16) show the maximum output current that can be delivered by each module in the respective orientation without exceeding the maximum t h temperature versus local ambient temperature (t a ) for air flows of 1 m/s (200 ft./min), 2 m/s (400 ft./min) and 3 m/s (600 ft./min). the use of figures 14 - 15 are shown in the following example: example what is the minimum airflow necessary for a qbk033a0b operating at vi = 48 v, an output current of 16a, and a maximum ambient temperature of 70 c in transverse orientation. solution: given: vi = 48v, io = 17a, t a = 70 c determine required airflow (v) (use figure 14): v = 1.0 m/sec. ( 200 ft./min.) or greater. output current, i o (a) 10 14 18 22 26 30 34 20 30 40 50 60 70 80 90 200 lfm (1.0 m/s) 400 lfm (2.0 m/s) 600 lfm (3.0 m/s) local ambient temperature, t a ( ? c) figure 14. output current derating for the qbk033a0b in the transverse orientation; airflow direction from vin(+) to vin(-); vin = 48v. output current, i o (a) 6 12 18 24 30 36 20 30 40 50 60 70 80 90 nc 600 lfm (3.0 m/s) 400 lfm (2.0m/s) 200 lfm (1.0m/s) local ambient temperature, t a ( ? c) figure 15. output current derating for the qbk033a0b (vo = 12v) in the transverse orientation with baseplate; airflow direction from vin(+) to vin(?); vin = 48v.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current 10 lineage power layout considerations the qbk033 power module series are low profile in order to be used in fine pitch system card architectures. as such, component clearance between the bottom of the power module and the mounting board is limited. avoid placing copper areas on the outer layer directly underneath the power module. also avoid placing via interconnects underneath the power module. for additional layout guide-lines, refer to fltr100v10 data sheet. output current, i o (a ) 12 16 20 24 28 32 36 20 30 40 50 60 70 80 90 200 lfm (1.0 m/s) 300 lfm (1.5 m/s) 400 lfm (2.0 m/s) 600 lfm (3.0 m/s) local ambient temperature, t a ( ? c) figure 16. output current derating for the qbk033a0b (vo = 12v) in the transverse orientation with baseplate and 0.25-inch high heatsink; airflow direction from vin(+) to vin(?); vin = 48v. output current, i o (a ) 16 20 24 28 32 36 20 30 40 50 60 70 80 90 200 lfm (1.0 m/s) 300 lfm (1.5 m/s) 600 lfm (3.0 m/s) 400 lfm (2.0 m/s) local ambient temperature, t a ( ? c) figure 17. output current derating for the qbk033a0b (vo = 12v) in the transverse orientation with baseplate and 0.5-inch high heatsink; airflow direction from vin(+) to vin(?); vin = 48v. output current, i o (a ) 20 24 28 32 36 20 30 40 50 60 70 80 90 200 lfm (1.0 m/s) 300 lfm (1.5 m/s) 600 lfm (3.0 m/s) 400 lfm (2.0 m/s) local ambient temperature, t a ( ? c) figure 18. output current derating for the qbk033a0b (vo = 12v) in the transverse orientation with baseplate and 1.0-inch high heatsink; airflow direction from vin(+) to vin(?); vin = 48v.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current lineage power 11 mechanical outline for qbk033a0b through-hole module dimensions are in millimeters and [inches]. tolerances: x.x mm ? 0.5 mm [x.xx in. ? 0.02 in.] (unless otherwise indicated) x.xx mm ? 0.25 mm [x.xxx in ? 0.010 in.] top view* side view bottom view *top side label includes lineage power name, product designation, and data code. ** standard pin tail length. optional pin tail lengths shown in table 2 device options. ?option feature, pin is not present unless one these options specified.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current 12 lineage power mechanical outline for qbk ?h (baseplate version) through-hole module dimensions are in millimeters and [inches]. tolerances: x.x mm ? 0.5 mm [x.xx in. ? 0.02 in.] (unless otherwise indicated) x.xx mm ? 0.25 mm [x.xxx in ? 0.010 in.] top view side view bottom view* *bottom side label includes lineage power name, product designation, and data code. ** standard pin tail length. optional pin tail lengths shown in table 2 device options. ?option feature, pin is not present unless one of these options is specified.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current lineage power 13 recommended pad layout for through-hole modules dimensions are in millimeters and (inches). tolerances: x.x mm ? 0.5 mm ( x.xx in. ? 0.02 in.) [unless otherwise indicated] x.xx mm ? 0.25 mm ( x.xxx in ? 0.010 in.) 50.80 (2.000) vo (+) vo (-) 15.24 (.600) v i (+) v i (-) ? ? on/off 3.6 (.14) 10.8 (.43) 57.9 (2.28) 36.8 (1.45) 1.02 (.040) dia pin, 5 plcs 1.57 (.062) dia pin, 2 plcs case parallel 3.81 (.150) 7.62 (.300) 11.43 (.450) 15.24 (.600) ?option feature, pin is not present unless one of these options is specified.
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current 14 lineage power through-hole lead-free soldering information the rohs-compliant through-hole products use the sac (sn/ag/cu) pb-free solder and rohs-compliant components. they are designed to be processed through single or dual wave soldering machines. the pins have an rohs-compliant finish that is compatible with both pb and pb-free wave soldering processes. a maximum preheat rate of 3 ? c/s is suggested. the wave preheat process should be such that the temperature of the power module board is kept below 210 ? c. for pb solder, the recommended pot temperature is 260 ? c, while the pb-free solder pot is 270 ? c max. not all rohs-compliant through-hole products can be processed with paste-through-hole pb or pb-free reflow process. if additional information is needed, please consult with your lineage power representative for more details. post solder cleaning and drying considerations post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. the result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. for guidance on appropriate soldering, cleaning and drying procedures, refer to lineage power board mounted power modules: soldering and cleaning application note (ap01-056eps).
data sheet januar y 26, 2011 qbk033a0b series power modules; dc-dc converters 36 ? 60 vdc in p ut; 12vdc out p ut; 33a out p ut current this product is affected by a permanent injunction entered by the united states district court for the eastern district of texas, marshall division in civil action no. 2:07-cv-00497- tjw-ce (copy enclosed). as set forth in that order, certain acts associated with this product are prohibited. this product is not for sale in, use in, or importation into the united states. document no: ds05-018 ver 1.22 pdf name: qbk033a0b.pdf ordering information please contact your lineage power sales representative for pricing, availability and optional features. table 1. device codes product codes input voltage output voltage output current efficiency connector type comcodes qbk033a0b41 48v (36 ? 60vdc) 12v 33a 95% through hole 108994793 qbk033a0b641 48v (36 ? 60vdc) 12v 33a 95% through hole cc109104361 qbk033a0b41-h 48v (36 ? 60vdc) 12v 33a 95% through hole 108996212 qbk033a0b7641-bh 48v (36 ? 60vdc) 12v 33a 95% through hole cc109124970 qbk033a0b741-h37 48v (36 ? 60vdc) 12v 33a 95% through hole 108996220 QBK033A0B41-HZ 48v (36 ? 60vdc) 12v 33a 95% through hole cc109125523 qbk033a0b1-phz 48v (36 ? 60vdc) 12v 33a 95% through hole cc109134268 qbk033a0b741-h37z 48v (36 ? 60vdc) 12v 33a 95% through hole cc109120615 qbk033a0b7541-hz 48v (36 ? 60vdc) 12v 33a 95% through hole cc109145141 -z indicates rohs compliant modules table 2. device options option suffix negative remote on/off logic 1 auto-restart (note: not available with ?p option) 4 pin length 6.35 ? 0.25mm (0.250 ? 0.010 in.) 5 pin length 3.68 ? 0.25mm (0.145 ? 0.010 in.) 6 case ground pin (offered with baseplate option only) 7 pin length 2.79 ? 0.25mm (0.110 ? 0.010 in.) 8 base plate option -h active load sharing (parallel operation) -p note: legacy device codes may contain a ?b option suffix to indicate 100% factory hi-pot tested to the isolation voltage specified in the absolute maximum ratings table. the 100% hi-pot test is now applied to all device codes, with or without the ?b option suffix. existing comcodes for devices with the ?b suffix are still valid; however, no new comcodes for devices containing the ?b suffix will be created. world wide headquarters lineage power corporation 601 shiloh road, plano, tx 75074, usa +1-888-lineage(546-3243) (outside u.s.a.: +1-972-244-watt(9288) ) www.lineagepower.com e-mail: techsupport1@lineagepower.com asia-pacific headquarters tel: +86.021.54279977*808 europe, middle-east and africa headquarters tel: +49.89.878067-280 india headquarters tel: +91.80.28411633 lineage power reserves the right to make changes to the product(s) or information contained herein without notice. no liability is assumed as a result of their use or a pplication. no rights under any patent accompany the sale of any such product(s) or information. lineage power dc-dc products are protected under various patents. information on these patents is available at www.lineagepower.com/patents . ? 2010 lineage power corporation, (plano, texas) all international rights reserved.

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