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product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 1 technical specification sq60120qpa28 the busqor ? sq60120qpa28 bus converter is a next-generation, board-mountable, isolated, fixed switching frequency dc-dc converter that uses synchronous rectification to achieve extremely high conversion efficiency. the power dissipated by the converter is so low that a heatsink is not required, which saves cost, weight, height, and application effort. the sq busqor series provides an isolated step down voltage from 48v to a semi-regulated 12v intermediate bus. busqor converters are ideal for customers who need multiple outputs and wish to build or buy point of load converters to work with a 12v rail. rohs compliant (see last page). sq60120qpa28 module bus converter ? ultra-high efficiency, 95% at full rated load current ? delivers up to 28 a (336 w) of output current (power) with minimal derating - no heatsink required ? input voltage range: 36 C 75 v ? fixed f requency s witching p rovides p redictable emi p erformance operational features ? on/off control referenced to input side control features contents ? industry standard quarter-brick bus converter pin-out (s feature set) ? industry standard size: 1.45" x 2.3" (36.8 x 58.4 mm) ? total height only 0.483" (12.27 mm), permits better airflow and smaller card pitch ? total weight: 1.5 oz. (42 grams) mechanical features ? 2000v, 30 m w input-to-output isolation ? ul/cul 60950-1 recognized (us & canada), basic insulation rating ? tuv certified to en60950-1 ? meets 72/23/eec and 93/68/eec directives ? meets ul94v-0 flammability requirements safety features ? input under-voltage lockout and over-voltage shutdown protects against abnormal input voltages ? output current limit and short circuit protection ? output over-voltage protection ? thermal shutdown protection features page no. sq60-qpa open frame mechanical diagram . . . . . . . . . . . . . . . . . . . . 2 sq60120qpa28 electrical characteristics . . . . . . . . . . . . . . . 3-4 standards compliance and qualification testing . . . . . . . . . . . . . . . . . . 4 figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 applications section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 36-75 v 12v 336 w 2000vdc quarter-brick continuous input outputs max power isolation dc-dc converter
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 2 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification sq60-qpa open frame mechanical diagram sq60-qpa open frame mechanical diagram 1 2 3 4 5 67 .600 [15,24] .150 [3,81] .750[19,05] 1.45[36,8 ] .145 [3,68] see note 3 .033 .032 [0,84 0,81] bottomside clearance side view [10,8] [7,62] [15,24] top view .43 .300 .600 2.30 [58,4] 2.00 [50,8] .14 [3,6] 4 5 67 .483 .032 [12,27 0,81] overall height notes 1) pins 1-3, are 0.040 (1.02mm) diameter, with 0.080 (2.03mm) diameter standoff shoulders. 2) pins 4-7 are 0.062 (1.57 mm) diameter with 0.100 (2.54 mm) diameter standoff shoulders. 3) other pin lengths available. recommended pin length is 0.03 (0.76mm) greater than the pcb thickness. 4) all pins: material - copper alloy- finish (rohs 6/6) - matte tin over nickel plate 5) undimensioned components are shown for visual reference only. 6) all dimensions in inches (mm) tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) 7) weight: tbd 8) workmanship: meets or exceeds ipc-a-610c class ii 9) ul/tuv standards require a clearance of 0.04 (1.02mm) around primary areas of the module. pin desinations pin name function 1 vin(+) input positive (36v - 75v) 2 on/off logic control input to turn converter on and off. 3 vin() input negative 4 vout(+) output positive 5 vout(-) output negative 6 vout(+) output positive 7 vout(-) output negative notes: pins in italics shaded text are optional
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 3 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification parameter min. t yp. m ax. u nits n otes & conditions absolute m aximum ratings input v oltage non-operating 0 100 v continuous operating 36 48 75 v continuous operating t ransient p rotection 100 v 100 m s isolation v oltage ( input t o o utput) 2000 v basic i nsulation, p ollution d egree 2 operating t emperature -40 100 c storage t emperature -55 125 c voltage a t o n/off i nput p in -2 18 v input characteristics operating i nput v oltage r ange 36 48 75 v input u nder-voltage l ockout turn-on v oltage t hreshold 31 34 v turn-off v oltage t hreshold 28 32 v lockout v oltage h ysteresis 2 4 v input o ver-voltage s hutdown turn-off v oltage t hreshold 105 v vin w hen u nit w ill s hut d own turn-on v oltage t hreshold 95 v vin w hen u nit t urns o n a fter s hutdown e vent maximum i nput c urrent 12 a 100% l oad, 3 5 v in no-load i nput c urrent 130 ma disabled i nput c urrent 8.5 ma input r eflected-ripple c urrent 7.5 14.0 ma rms t hrough 1 0 h inductor; figures 12 & 14 input t erminal-ripple c urrent 600 1000 ma rms, f ull l oad; figures 12 & 1 recommended i nput f use 1 15 a fast b low e xternal f use r ecommended input f ilter c omponent v alues ( c\l) 6.6\0.22 f\h internal values recommended e xternal i nput c apacitance 47 f typical esr 0.1-0.2 w ; see figure 12 output characteristics output v oltage s et p oint 12.35 v 48vin, n o l oad output v oltage r egulation over l ine +0.48\-1.8 v figure 4 over l oad +0\-0.6 v figure 4 over t emperature 300 mv figure 4 total o utput v oltage r ange 10.6 12.7 v over s ample, l ine, l oad, t emperature & l ife output v oltage r ipple a nd n oise 2 20mhz b andwidth; f igures 12 & 1 5 peak-to-peak 150 300 mv full l oad; s ee f igures 12 & 1 5 rms 40 100 mv full l oad; s ee f igures 12 & 1 5 operating o utput c urrent r ange 0 28 a subject t o t hermal d erating; f igures 5 - 8 output d c c urrent-limit i nception 35 a output v oltage 1 0% l ow; f igure 1 6 output d c c urrent-limit s hutdown v oltage 7 v back-drive current limit while disabled 50 ma negative current drawn from output maximum o utput c apacitance 3,000 f 12vout a t 2 8a r esistive l oad dynamic characteristics output v oltage d uring l oad c urrent t ransient for a s tep c hange i n o utput c urrent ( 0.1a/s) 1500 2250 mv 50% t o 7 5% t o 5 0% i out m ax; f igure 1 1 settling t ime 250 350 s to w ithin 1 % v out n om turn-on t ransient turn-on t ime 8 10 ms full l oad, v out=90% n om.; f igures 9 & 1 0 start-up i nhibit t ime 200 ms -40c t o + 125c; f igure e output voltage overshoot 0 % 3 mf load capacitance, iout = 0a efficiency 100% load 95 % figure 1 50% load 95 % figure 1 temperature limits for power derating curves semiconductor junction temperature 125 c package rated to 150c board temperature 125 c ul rated max operating temp 130c transformer temperature 125 c see figures 5 - 8 for derating curves isolation characteristics isolation voltage (dielectric strength) 2000 v isolation resistance 30 m w isolation capacitance 3 470 pf sq60120qpa28 electrical characteristics t a =25c, a irflow r ate=300 l fm, v in =48vdc u nless o therwise n oted; f ull o perating t emperature r ange i s - 40c t o + 100c a mbient temperature with appropriate power derating. specifications subject to change without notice. note 1: uls product certification tests were carried out using 15a fast blow fuse. fuse interruption characteristics have to be taken into account while designing input traces. user should ensure that input trace is capable of withstanding fault currents until fuse blows. note 2: for applications requiring reduced output voltage ripple and noise, consult synqor applications support (e-mail: support@synqor.com) note 3: higher values of isolation capacitance can be added external to the module.
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 4 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification parameter p min. t yp. m ax. u nits n otes & conditions feature characteristics switching frequency 260 300 340 khz on/off control (option p) figure b off-state voltage -1.0 0.8 v on-state voltage 2.4 18 v on/off control (option n) figure b off-state voltage 2.4 18 v on-state voltage -1.0 0.8 v output over-voltage protection 16 v over full temp range; no load over-temperature shutdown 140 150 c average pcb temperature over-temperature shutdown restart hysteresis 10 c reliability characteristics calculated mtbf (telcordia) 2.6 10 6 hrs. tr-nwt-000332; 80% load,300lfm, 40 o c t a calculated mtbf (mil-217) 2.1 10 6 hrs. mil-hdbk-217f; 80% load, 300lfm, 40 o c t a field demonstrated mtbf 10 6 hrs. see our website for details standards compliance and qualification testing parameter p notes standards c ompliance ul/cul 60950-1 file # e194341, basic insulation & pollution degree 2 en60950-1 certified by tuv 72/23/eec 93/68/eec needle flame test (iec 695-2-2) test on entire assembly; board & plastic components ul94v-0 compliant iec 61000-4-2 esd test, 8kv - np, 15kv air - np (normal performance) gr-1089-core section 7 - electrical safety, section 9 - bonding/grounding ? an external input fuse must always be used to meet these safety requirements. contact synqor for official safety certificates on new releases or download from the synqor website. parameter p # units t est conditions qualification t esting life test 32 95% rated v in and load, units at derating point, 1000 hours vibration 5 10-55hz sweep, 0.060 total excursion,1 min./sweep, 120 sweeps for 3 axis mechanical shock 5 100g minimum, 2 drops in x and y axis, 1 drop in z axis temperature cycling 10 -40c to 100c, unit temp. ramp 15c/min., 500 cycles power/thermal cycling 5 t operating = min to max, v in = min to max, full load, 100 cycles design marginality 5 t min -10c to t max +10c, 5c steps, v in = min to max, 0-105% load humidity 5 85c, 85% rh, 1000 hours, 2 minutes on and 6 hours off solderability 15 pins mil-std-883, method 2003 and jesd22-b102d ? extensive characterization testing of all synqor products and manufacturing processes is performed to ensure that we supply robust, reliable product. contact the factory for official product family qualification documents. eectrca characterstcs (continued)
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 5 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification 70 75 80 85 90 95 100 0 4 8 12 16 20 24 28 load current (a) efficiency (%) 36 vin 48 vin 75 vin 0 5 10 15 20 25 30 0 4 8 12 16 20 24 28 load current (a) power dissipation (w) 36 vin 48 vin 75 vin figure 2: power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25 c. 91 92 93 94 95 96 97 100 200 300 400 air flow (lfm) efficiency (%) 25 c 40 c 55 c figure 3: efficiency at nominal output voltage and 60% rated power vs. airflow rate for ambient air temperatures of 25 c, 40 c, and 55 c (nominal input voltage). 7 8 9 10 11 12 13 14 0 4 8 12 16 20 24 28 load current (a) output voltage (v) 36v 48v 75v figure 4: output voltage regulation vs. load current for minimum, nominal, and maximum input voltage at 25 c. 0 5 10 15 20 25 30 25 40 55 70 85 ambient air temperature (c) iout (a) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) figure 5: maximum output power derating curves vs. ambient air tem - perature for airflow rates of 0 lfm through 400 lfm with air flowing from pin 3 to pin 1 (nominal input voltage). figure 6: thermal plot of converter at 23.3 amp load current (279.6w) with 55 c air flowing at the rate of 200 lfm. air is flowing across the converter from pin 3 to pin 1 (nominal input voltage). figure 1: efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25 c. semiconductor junction temperature is within 1 c of surface temperature figures
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 6 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification 0 5 10 15 20 25 30 25 35 45 55 65 75 85 ambient air temperature (oc) iout (a) 400 300 200 100 figure 7: maximum output power derating curves vs. ambient air tem - perature for airflow rates of 0 lfm through 400 lfm with air flowing from output to input (nominal input voltage). figure 8: thermal plot of converter at 21.9 amp load current (262.8w) with 55 c air flowing at the rate of 200 lfm. air is flowing across the converter from output to input (nominal input voltage). figure 9: turn-on transient at half load (resistive load) and 3mf out - put capacitance (2.0 ms/div). input voltage pre-applied. channel 1: vout (5v/div). channel 2: on/off input (2v/div). figure 10: turn-on transient at zero load and 3mf output capaci - tance (2.0ms/div). input voltage pre-applied. channel 1: vout (5v/div). channel 2: on/off input (2v/div). figure 11 : output voltage response to step-change in load current (50%- 75%-50% of iout(max); di/dt = 0.1a/ s). load cap: 100 f, 100 m w esr tantalum cap. top trace: vout (2v/div), bottom trace: iout (10a/div). figure 12 : test set-up diagram showing measurement points for input terminal ripple current (figure 13), input reflected ripple current (figure 14) and output voltage ripple (figure 15). semiconductor junction temperature is within 1 c of surface temperature 10 h source impedance dc-dc converter see fig. 14 see fig. 13 see fig. 15 1 f ceramic capacitor 15 f, 450m w esr tantalum capacitor 47 f, <1 w esr electrolytic capacitor v source i s i c v out
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 7 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification figure 13: input terminal ripple current, i c , at full rated output cur - rent and nominal input voltage with 5 h source impedance and 47 f electrolytic capacitor (500ma/div). see figure 12. figure 14: input reflected ripple current, i s , through a 5 h source inductor at nominal input voltage and rated load current (10ma/div). see figure 12. figure 15: output voltage ripple at nominal input voltage and rated load current (50mv/div). load capacitance: 1 f ceramic capacitor and 15 f tantalum capacitor. bandwidth: 20mhz. see figure 12. 0 2 4 6 8 10 12 14 0 5 10 15 20 25 30 35 40 45 load current (a) output voltage (v) 35 vin 48 vin 75 vin figure 16: output voltage vs. load current showing typical current limit curves and converter shutdown points. figure 17: load current (10a/div) as a function of time when the con - verter attempts to turn on into a 1m w short circuit. top trace (500 s/ div) is an expansion of the on-time portion of the bottom trace. 0.01 0.1 1 10 100 1,000 10,000 100,000 1,000,000 hz output impedance (ohms) 36v 28a 48v 28a 75v 28a figure 18: magnitude of incremental output impedance (z out = v out / i out ) for minimum, nominal, and maximum input voltage at full rated power.
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 8 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification -60 -50 -40 -30 -20 -10 0 10 100 1,000 10,000 100,000 1,000,000 hz forward transmission (db) 36v 28a 48v 28a 75v 28a figure 19: magnitude of incremental forward transmission (ft = v out / v in ) for minimum, nominal, and maximum input voltage at full rated power. -40 -30 -20 -10 0 10 100 1,000 10,000 100,000 1,000,000 hz reverse transmission (db) 35 vin 48 vin 55 vin figure 20: magnitude of incremental reverse transmission (rt = i in / i out ) for minimum, nominal, and maximum input voltage at full rated power. 0.1 1 10 100 1000 10 100 1,000 10,000 100,000 1,000,000 hz input impedance (ohms) 35 vin 48 vin 55 vin figure 21: magnitude of incremental input impedance (z in = v in /i in ) for minimum, nominal, and maximum input voltage at full rated power.
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 9 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification applications section basic operation and features with voltages dropping and currents rising, the economics of an intermediate bus architecture (iba) are becoming more attractive, especially in systems requiring multiple low voltages. iba systems separate the role of isolation and voltage scaling from regulation and sensing. the bus qor series bus converter provides isolation and a coarse voltage step down in one compact module, leaving regulation to simpler, less expensive non-isolated converters. in figure a below, the bus qor module provides the isolation stage of the iba system. the isolated bus then distributes power to the non-isolated buck regulators to generate the required voltage lev- els at the point of load. in this case, the bucks are represented with synqors ni qor series of non-isolated dc-dc converters. in many applications requiring multiple low voltage outputs, signifi- cant savings can be achieved in board space and overall system costs. when designing an iba system with bus converters, the designer can select from a variety of bus voltages. while there is no univer- sally ideal bus voltage, most designs employ one of the following: 12v, 9v, 7.5v, 5v, or 3.3v. higher bus voltages can lead to lower efficiency for the buck regulators but are more efficient for the bus converter and provide lower board level distribution cur- rent. lower bus voltages offer the opposite trade offs. synqors sq bus qor modules accept the full 48/60v telecom bus voltage and have a narrow output voltage range compatible with many non-isolated point of load converters. when used in iba systems, the output variation of the bus qor must be in accor- dance with the input voltage range of the non-isolated converters being employed. 3.3 v 2.5 v 48vdc 42-53v 1.8 v 1.5 v 0.9 v loads typical user board 48vdc front end figure a: ee ereie bu arieure uig bur u erer ir ie erer control features remote on/off (pin 2 ): the on/off input, pin 2, permits the user to control when the converter is on or off . this input is referenced to the return terminal of the input bus, vin(-). there are two versions of the converter that differ by the sense of the logic used for the on/off input. in the positive logic version, the on/off input is active high (meaning that a high turns the converter on ). in the negative logic version, the on/off signal is active low (meaning that a low turns the converter on ). figure b is a detailed look of the internal on/off circuitry. vin+ +5v 5v 124k on/off 49.9k ttl 100k vin- figure b: er ff i iruir protection features input under-voltage lockout : the converter is designed to turn off when the input voltage is too low, helping avoid an input system instability problem, described in more detail in the application note titled input system instability available on the synqor website. the lockout circuitry is a comparator with dc 12vdc bus qor converter hysteresis. when the input voltage is rising, it must exceed the typical turn-on voltage threshold value (listed on the specifica- tion page) before the converter will turn on. once the converter is on, the input voltage must fall below the typical turn-off voltage threshold value before the converter will turn off. also see figure e. ni qor converters output current limit : the output of the bus qor module is electronically protected against output overloads. when an overload current greater than the dc current-limit inception specification is drawn from the output, the output of the busqor will shutdown to zero volts after the 1 ms have elapsed (see figure c). the shutdown period lasts for a typical period of 200 ms (figure d) after which the bus qor tries to power up again. if the overload persists, the output voltage will go through applications section
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 10 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification output current 40a 28a output voltage 12v 0v 1 ms figure c: output overload protection diagram (not to scale) repeated cycles of shutdown and restart with a duty cycle of 20 ms (on) and 200 ms (off) respectively. the bus qor module returns (auto resetting) to normal operation once the overload is removed. the bus qor is designed to survive in this mode indefinitely without damage and without human intervention. output short circuit protection : when the output of the busqor module is shorted, a peak current of typically 40 a will flow into the short circuit for a time of about 1 ms. the output of the bus qor will shutdown to zero volts after the 1 ms have elapsed (figure d). the shutdown period lasts for a time of 200 ms, at the end of which the bus qor module tries to power up again. if the short circuit persists, the output voltage will go through repeated cycles of shutdown and restart with a duty cycle of 20 ms (on) and 200 ms (off) respectively. the bus qor module returns (auto resetting) to normal operation once the short circuit is removed. the bus qor is designed to survive in this mode indefinitely without damage and without human intervention. in the auto resetting mode, also referred to as ?hiccup? mode, the power drawn from the 48 v input is about 5 watts, most of which is dissipated into the external fault. it is important that copper traces and pads from the output circuit be designed to withstand the short term peaks, although the average current into the fault may be as low as 50 ma typical. see figure 17 for appropriate waveform. output current 40a peak time output voltage <12v 0v time 220 ms 20 ms figure d: output short circuit and auto-resetting protection diagram (not to scale)
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 11 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification over-temperature shutdown : a temperature sensor on the converter senses the average temperature of the module. the ther- mal shutdown circuit is designed to turn the converter off when the temperature at the sensed location reaches the over-temperature shutdown value. it will allow the converter to turn on again when the temperature of the sensed location falls by the amount of the over-temperature shutdown restart hysteresis value. vin uvlo on/off (n logic) off o n t 0 vout 12v 200 ms 12 ms figure e: power up/down diagram (not to scale) showing start-up inhibit period. application considerations start-up inhibit period : figure e details the start-up inhibit period for the bus qor modulewhen vin is applied with the on/ off pin asserted (enabled). before time t 1 , when the input voltage is below the uvl threshold, the unit is disabled by the input under- voltage lockout feature. when the input voltage rises above the uvl threshold, the input under-voltage lockout is released, and a typical startup inhibit period of 8 ms from a vin start-up. once the module recognizes it should be on it waits an additional 4 ms before it starts. when starting from an on/off event the module has an inhibit time of 200 ms like our standard products. the output builds up to 90% or higher of the nominal voltage and stabilizes to its nominal output voltage in a total time of 8 ms typical. the the module has a vout rise time of 4 ms typically. at time t 2 , when the on/off pin is de-asserted (disabled), the busqor module stops switching immediately. fall time from 12 v to 0 v is dependent on output capacitance load current, and any parasitic trace inductance in the output load circuit. t t 1 t 2 t 3 at time t 3 , when the on/off pin is re-asserted (enabled), the busqor module output begins to build up after the inhibit period of 200 ms typical. refer to the control features section of the data sheet for details on enabling and disabling methods for n and p logic type modules. time 208 ms
product # sq60120qpa28 p hone 1-888-567-9596 w ww.synqor.com d oc.# 005-2sq612j rev. b 0 6/17/09 p age 12 input: output: current: package: 36-75 v 12 v 28 a quarter-brick technical specification part numbering system the p art n umbering s ystem f or s ynqors bus qor d c b us c on - verters follows the format shown in the example below. the first 12 characters comprise the base part number and the last 3 c haracters i ndicate a vailable o ptions. a lthough t here are no default values for enable logic and pin length, the most common o ptions a re n egative l ogic a nd 0 .145 p ins. t hese part numbers are more likely to be readily available in stock for evaluation and prototype quantities. a -g suffix indicates the p roduct i s 6 /6 r ohs c ompliant. synqor holds the following patents, one or more of which might apply to this product: 5,999,417 6,222,742 6,545,890 6,577,109 6,594,159 6,731,520 6,894,468 6,896,526 6,927,987 7,050,309 7,072,190 7,085,146 7,119,524 7,269,034 7,272,021 7,272,023 the tables below show the valid model numbers and ordering options f or c onverters i n t his p roduct f amily. w hen o rdering synqor converters, please ensure that you use the complete 15 c haracter p art n umber c onsisting o f t he 1 2 c haracter b ase part n umber a nd t he a dditional 3 c haracters f or o ptions. a -g s uffix i ndicates t he p roduct i s 6 /6 r ohs c ompliant. the following option choices must be included in place of the x y z spaces in the model numbers listed above. appcat tes a variety of application notes and technical white papers can be downloaded in pdf format from our website. rohs compliance: t he e u l ed r ohs ( restriction o f h azardous substances) d irective b ans t he u se o f l ead, c admium, h exavalent chromium, mercury, polybrominated biphenyls (pbb), and polybrominated d iphenyl e ther ( pbde) i n e lectrical a nd e lectronic equipment. t his s ynqor p roduct i s a vailable a s 6 /6 r ohs compliant. f or m ore i nformation p lease r efer t o s ynqors r ohs addendum a vailable a t o ur r ohs c ompliance / l ead f ree initiative w eb p age o r e -mail u s a t r ohs@synqor.com. synqor offers a three (3) year limited warranty. complete warranty infor - mation is listed on our website or is available upon request from synqor. information furnished by synqor is believed to be accurate and reliable. however, no responsibility is assumed by synqor for its use, nor for any infringements of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of synqor. contact synqor for further information phone : 978-849-0600 toll free : 888-567-9596 fax : 978-849-0602 e-mail : power@synqor.com web : www.synqor.com address : 155 swanson road boxborough, ma 01719 usa s q 6 0 1 2 0 q p a 2 8 n n s - g product family package size performance level thermal design output current 6/6 rohs options (see ordering information) input voltage output voltage model number input voltage output voltage max output current sq60120qpa28 xyz-g 36 - 75v 12v 28a options description: x y z enable logic* pin length feature set p - positive n - negative k - 0.110" n - 0.145" r - 0.180" y - 0.250" s - standard 1 set of output pins 2 - two sets of output pins

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