lt o 1 5 0 www.vishay.com vishay sfernice revision: 15-feb-18 1 document number: 50071 for technical questions, contact: sferfixedresisto rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 clip mount power resistor thick film technology lto150 are the extension of lto series. the component is used in direct contact with heatsink. fixation done by clip. features ? 150 w at 45 c case temperature heatsink mounted ? direct mounting ceramic on heatsink ? broad resistance range: 0.03 ? to 1.3 m ? ? non inductive ? to-247 package: compact and easy to mount ? designed for clip mounting ? ul 94 v-0 material used - compliant with en45545-2 ? aec-q200 qualified ? material categorization: fo r definitions of compliance please see www.vishay.com/doc?99912 note ? tolerances unless stated: 0.3 mm dimensions in millimeters standard electrical specifications model size resistance range ? rated power p 25 c w limiting element voltage u l v tolerance % temperature coefficient ppm/c critical resistance ? lto 150 to-247 0.03 to 1.3m 150 500 1, 2, 5, 10 200, 350, 900 1.66k 14.5 10.16 3.5 20.7 3.6 15.76 5.33 5 0.3 r2 0.6 2.4 10.5 mechanical specifications mechanical protection molded resistive element thick film substrate alumina connections tinned copper weight 4 g max. clip assembly force 60 n to 110 n environmental specifications temperature range -55 c to +175 c climatic category 55 / 175 / 56 flammability iec 60695-11-5 2 applications 30 s separated by 60 s technical specifications dissipation and associated onto a heatsink + clip power rating and ? thermal resistance ? of the component 150 w at +45 c (case temp.) r th (j - c) : 0.87 c/w free air: 4.5 w at +25 c temperature coefficient see performance table 200 ppm/c dielectric strength ? iec 60115-1 3000 v rms - 1 min 10 ma max. insulation resistance ? 10 4 m ? inductance ? 0.1 h
lt o 1 5 0 www.vishay.com vishay sfernice revision: 15-feb-18 2 document number: 50071 for technical questions, contact: sferfixedresisto rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 choice of the heatsink the user must choose according to the working condit ions of the component (pow er, room temperature). ? maximum working temperature must not exceed 175 c. the dissipated power is simply calculated by the following ratio: p: expressed in w ? ? t: difference between maximum working temperature and room temperature ? r th (j - c) : thermal resistance value measured between resistive layer and ou ter side of the resistor. it is the thermal resistance of the ? component. ? r th (c - h) : thermal resistance value measured between outer side of the resi stor and upper side of the heat sink. this is the thermal resis tance ? of the interface (grease, thermal pad), and the quality of the fastening device. ? r th (h - a) : thermal resistance of the heatsink example: ? r th (c - h) + r th (h - a) for lto 150 power rating 10 w at ambient tempe rature +25 c ? thermal resistance r th (j - c) : 0.87 c/w ? considering equation (1) we have: ? t = 175 c - 25 c = 150 c ? r th (j - c) + r th (c - h) + r th (h - a) = = = 15 c/w ? r th (c - h) + r th (h - a) = 15 c/w - 0.87 c/w = 14.13 c/w example with a thermal grease r th (c - h) = 0.5 c/w, we need a heatsink with r th (h - a) = 13.63 c/w performance tests conditions requirements momentary overload iec 60115-1 1.5 pr/5 s u s < 1.5 u l (0.5 % + 0.005 ? ) load life iec 60115-1 1000 h pr (free air) at +25 c 90/30 (1 % + 0.005 ? ) high temperature exposure aec-q200 rev d conditions: mil-std-202 method 108 1000 h, +175 c, unpowered (0.5 % + 0.005 ? ) temperature cycling aec-q200 rev d conditions: jesd22 method ja-104 1000 cycles, -55 c to +125 c dwell time -15 min (1 % + 0.005 ? ) biased humidity aec-q200 rev d conditions: mil-std-202 method 103 1000 h, 85 c, 85 % rh (10 % of free air power) (1 % +0.005 ? ) operational life aec-q200 rev d conditions: mil-std-202 method 108 1000 h, 90/30, powered (f ree air) at +125 c (1 % +0.005 ? ) esd human body model aec-q200 rev d conditions: aec-q200-002 iec 61000-4-2 25 kv ad (0.5 % +0.005 ? ) vibration aec-q200 rev d conditions: mil-std-202 method 204 5 g s for 20 min, 12 cycles test from 10 hz to 2000 hz (0.5 % +0.005 ? ) mechanical shock aec-q200 rev d conditions: mil-std-202 method 213 100 g s, 6 ms, 3.75 m/s 3 shocks/direction (0.5 % +0.005 ? ) terminal strength aec-q200 rev d conditions: aec-q200-006 2 kgf, 60 sec (0.25 % +0.01 ? ) special features resistance values ? 0.015 ? 0.1 > 20 tolerances 1 % at 10 % typical temperature coefficient ? (-55 to +175 c) 900 ppm/c 350 ppm/c 200 ppm/c p = ? t r th (j - c) ?? r th (c - h) ?? r th (h - a) ?? ++ ---------------------------------------------------------------------------------- - 1 ?? ? t p ------- 150 10 ---------- -
lt o 1 5 0 www.vishay.com vishay sfernice revision: 15-feb-18 3 document number: 50071 for technical questions, contact: sferfixedresisto rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 configuration 1: water cooling heatsink cp15 from lytron (304 mm x 95.3 mm x 8 mm) with water flow rate 4 lpm and thermal grease bluesil past 340 from bluestar silic ones. max08ng from aavid screwed clip mounting. configuration 2: air cooling heatsink 0s552 from aavid (48 mm x 80 mm x 70 mm) and thermal grease bluesil past 340 from bluestar silicones. max03hng from aavid clipped mounting. configuration 3: air cooling heatsink 0s550 from aavid (31.75 mm x 58.7 mm x 70 mm) and thermal grease bluesil past 340 from bluestar silicones. max03hng from aavid clipped mounting. momentary overload in any case the applied volt age must be lower than the maximum overload voltage of 750 v during 5 s. energy curve (single pulse) the values indicated on the graph below are applicable to resistors in air or mounted onto a heatsink. ? power curve power rating the temperature of th e case should be maintained within the limits specified. marking model, style, resistance value (in ? ), tolerance (in %), manufacturing date, vishay sfernice trademark according iec 60062. configuration 1 configuration 2 configuration 3 power dissipation (w) 150 35 26 t resistive element (c) 175 175 175 r th (j - c) max. (c/w) 0.87 0.87 0.87 r th (c - h) typ. (c/w) 0.127 0.33 0.33 r th (h - a) max. (c/w) 0.069 3.09 4.57 fluid t (c) 15 (water) 25 (air) 25 (air) 0.01 0.1 1 10 100 ener g y in joule s overload duration in s 10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 100 1000 10 000 100 000 1 000 000 power in w overload duration in s 10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 packaging tube of 30 units 0 20 40 60 80 100 120 140 160 175 100 125 75 50 25 0 rated power in % case temperature in c
lt o 1 5 0 www.vishay.com vishay sfernice revision: 15-feb-18 4 document number: 50071 for technical questions, contact: sferfixedresisto rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 clips clip mounting recommendation to improve the thermal conductivity, all surface of ceramic has to be coated with a thermal silicon grease. if you not use our clipped or screwed clip, it is re commended that a mounting force of 60 n to 110 n be applied to the center of the molding case of the component. tightening torque 2 nm when mounting screwed clip max08ng on heatsink. accrflto150cl (max03hng) a ccrflto150vs (max08ng) ordering information lto 150 f 2.7 k ? 1 % xxx tu30 e3 model style connections resistance value tolerance 1 % 2 % 5 % 10 % custom design optional on request: special tcr, shape etc. packaging lead (pb)-free global part number information global model size leads ohmic value tolerance packaging lead (pb)-free lto 150 f = radial leads the first four digits are significant figures and the last digit specifies the number of zeros to follow. r designates decimal point. 48r70 = 48.7 ? 48701 = 48 700 ? 10002 = 100 000 ? r0100 = 0.01 ? r4700 = 0.47 ? 27000 = 2700 ? = 2.7 k ? f = 1 % g = 2 % j = 5 % k = 10 % t = tube tube 30 pieces e3 = pure tin clip part number information reference part number for ordering screwed clip max08ng accrflto150vs clipped clip max03hng accrflto150cl 18 21.5 9.3 0.6 30.55 18 ? 4.2 5.9 0.6 14.7 23.5 150f270 0 t 3 t o l 0je
|
