1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 152 derating derating (thermal resistance): 0.666w/k (1.5k/w). without a heatsink, when in free air at 25c, the teh100 is rated for 3.5w. derating for temp. above 25c is 0.0234w/k. graphed value is only valid when using a thermal conduction to the heatsink rth- cs<0.025k/w. this value can be reached by using thermal transfer compound with a heat conductivity of 1w/mk. the flatness of the cooling plate must be better than 0.05mm overall. the roughness of the surface should not exceed 6.4m. the case temperature is to be used for the definitiion of the applied power limit. the case temperature measurement must be made with a thermocouple contacting the center of the component mounted on the designed heat sink. thermal grease should be applied properly teh100 series 100 watt thick film power resistors for high frequency and pulse loading applications resistor thick film on alumina case high temperature plastic lead material tinned copper installation, max. torque 0.9 nm using an m3 screw and a compression washer derating linear, 100% at 25c to 0% at 175c resistance range 0.05 to 1m, other values on request resistance tol. 1%, 2%, 5%, 10% max. working voltage 350v temperature coefficient >10: 50ppm/c, ref. to 25c 3 to 10: 100ppm/c 1 to 2.99: 250ppm/c <1: 500-1000+ppm/c (contact factory for exact values below 1) insulation resistance 10g min. dielectric strength 1,800 vac test conditions of test performance load life mil-r-39009d 4.8.13 , 2,000 hours at rated power ? r (1.0% + 0.0005 ) moisture resis - tance -10c - +65c, rh>90%, cycle 240 h ? r (0.50% + 0.0005 ) short time overload 1.5 times rated power and v(dc) 1.5vmax for 5 seconds ? r (0.50% + 0.0005 ) thermal shock gjb360a-96 method 107, cond. f ? r (0.50% + 0.0005 ) dielectric strength gjb360a-96 method 301, (1,800v ac, 60s) ? r (0.15% + 0.0005 ) terminal strength gjb360a-96 method 211, cond. a (pull test) 2.4n ? r (0.20% + 0.0005 ) high frequency vibration gjb360a-96 method 204, cond. d ? r (0.40% + 0.0005 ) 100 percent rated powe r bottom of base plate temperature, c 60 20 0 0 80 40 75 100 175 125 50 25 150 this product is designed for use with proper heatsinking. maximum base plate temperature of the resistor must be monitored and kept within specified limits to establish the power rating. best technique is to attach a ther - mocouple to the side of the base plate of the resistor. temperature of plastic housing or heat sink cannot be used to establish rating of the resistor. ohmite offers the totally encapsulated and insulated to-247 package for low ohmic value and non-induc - tive design for high-frequen - cy and pulsing applications. ideal use is for power sup - plies. this series is rated at 100 watts mounted to a heat sink. fea tures ? 100 watt power rating at 25c case temperature ? non-inductive performance ? low thermal resistance ? rohs compliant design ? to-247 package configura - tion ? single screw mounting simplifies attach-ment to the heat sink ? a totally molded housing for enviromental protection ? non-inductive design ? resistor package totally insulated from heat sink characteristics (continued)
1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 153 0.610~0.630" (15.49~16.01mm) 0.805~0.825" (20.44~20.96mm) 0.200~0.220" (5.07~5.59mm) ?0.139~0.147" (3.53~3.73mm) 0.136~0.150" (3.45~3.81mm) ?m? 0.054~0.066" (1.37~1.67mm) ?l? 0.042~0.054" (1.07-1.37mm) 0.080~0.140" (2.03~3.55mm) 0.390~0.410" (9.90~10.42mm) 0.185~0.205" (4.69~5.21mm) 0.085~0.105" (2.15~2.67mm) 0.022~0.042" (0.55~1.07mm) 0.520~0.620" (13.21~15.75mm) ?m? option ?l? option 0.807~0.886" (20.50~22.50mm) teh100m10r0je series to lerance f= 1% j= 5% ohms r = decimal example: 2r50 = 2.50 25r 0= 25 100r = 100 1k00 = 1000 rohs complian t non-compliant version unavailble package code m = standard l = long terminals standard part numbers ohms 5% tolerance 1% tolerance 0.05 TEH100MR050JE 0.075 teh100mr075je 0.1 teh100mr100je 0.2 teh100mr200je 0.5 teh100mr500je 1 teh100m1r00je teh100m1r00fe 2 teh100m2r00je teh100m2r00fe 2.5 teh100m2r50je teh100m2r50fe 3 teh100m3r00je teh100m3r00fe 5 teh100m5r00je teh100m5r00fe 7.5 teh100m7r50je teh100m7r50fe 10 teh100m10r0je teh100m10r0fe 15 teh100m15r0je teh100m15r0fe 20 teh100m20r0je teh100m20r0fe 25 teh100m25r0je teh100m25r0fe 50 teh100m50r0je teh100m50r0fe 100 teh100m100rje teh100m100rfe 270 teh100m270rje 470 teh100m470rje 750 teh100m750rje 1k teh100m1k00je 5k teh100m5k00je 7.5k teh100m7k50je teh100 series 100 watt thick film power resistors for high frequency and pulse loading applications dimensions (in./mm) orde ring informa tion
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