TEH140 Series 140 Watt TO-247 Power Resistors for High Frequency and Pulse Loading Applications F e a t u r es * 140W high power resistor in TO-247 molded package * Only 0.9C/W heat resistance between resistor and flange for excellent cooling * Wide 10m to 510k resistance range, non-inductive design fit for high frequency circuit and wide band amplifiers * Small size and thin shape provides for high density design of power electronics * Complete thermal conduction and heat dissipation design will be available * Applications include power electronics / inverter of automotive, rail traction, wind turbine, PV, UPS and industrial motor control as harmonic filter, dumping, snubber, gate control, bleeder resistor and rush current protection S p e c i f i c at i o n s Resistance range* Nom. Resistance TCR 0.01 - 0.099 +E12 >250ppm/C 0.1 - 510K +E24 100ppm/C Tolerance 5% 1%, 5% c h a r a c te r i st i c s Construction Thick Film Short Time Overload 0.5% Rating Power 140 Watts at 25C flange temperature 1.5 times rated power for 5 seconds Withstanding Voltage 2500VAC 60 seconds. 1mA Rating Power 3.0 Watts, Free air. Heat Resistance 0.9C/W From resistor to flange Capacitance 3.68 pF At point of terminal length 10mm Inductance 12.25 nH At point of terminal length 10mm Operation Temp. Range -55 - +175C Max. Applied Voltage 500V or P*R Max. Operating Current 120A Weight 7.2 grams Load Life 1.0% 25C, 90 min.ON, 30min.OFF, 1000hours. Humidity 1.0% 70C, 90 - 95%RH, DC0.1W, 1000hours. Temperature Cycle 0.25% Soldering Heat 0.25% Solderability Over 3/4 of round Insulation Resistance Over 1000M -55C, 30 min., +155C 30min., 5 cycles. 3505C, 3seconds, 2305C, 3seconds. Between terminals and tab. Vibration 0.25 % Flammability UL94V-0 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 thermocouple 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. (continued) 152 1-866-9-OHMITE * Int'l 1-847-258-0300 * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com TEH140 Series 140 Watt TO-247 Power Resistors for High Frequency and Pulse Loading Applications c h a r a c te r i st i c s Frequency Characteristics 100 80 +25C 60 40 +175C 20 0 50 100 150 Flange Temperature (C) 100 10 1 10K 200 Temperature Rise 160 100k Pulse peak power (W) 120 0 -50 Pulse Energy Durability 1000 Impedance (ohm) % Rated Power 140 100K 1M 10M 100M Frequency (MHz) 1G Construction Leads, Tin plated Cu Molding, epoxy Conductor, Cu Resistor, cermet or NiCr Substrate, Alumina Flange, Ni plated Cu 10k 1k 1350W 100 140W 10 10n 1u 100u 10m 1 100 100n 10u 1m 100m 10 Pulse width (seconds) Temperature Rise (C) Derating 120 80 Resistor film temperature refer to flange with heat-sink 40 0 0 20 40 60 80 100 120 140 Applied Power (W) Tentative continuous-pulse power allowance at duty 0.01. Load life test will be necessary in actual equipment, Because curve will be changed by resistance, repetition, duty and operating temperature. Dotted is estimation. Between flange and resistor are insulated o r d e r i n g i n f o r m at i o n dimensions (in./mm) 0.630" .008 (16mm .2) 0.189" .008 (4.8mm .2) 0.200" .020 (5.1mm .5) 0.787" .020 (20mm .5) RoHS Compliant TEH140M10R0FE Series Modifier o0.140" .004 (3.55mm .1) 0.110" .008 (2.8mm .2) 0.571" .020 (14.5mm .5) 0.143" .007 (3.63mm .18) 0.060" .004" (1.52mm .1) Ohms R = Decimal Example: 2R50 = 2.50 25R0 = 25 100R = 100 1K00 = 1000 Standard part numbers 0.060" .004 (0.80mm .1) 0.143" .008 (3.63mm .2) 0.400" .010 (10.16mm .26) TEH140MR010JE TEH140MR050FE TEH140MR030FE TEH140MR040FE TEH140M1R00FE TEH140M2R00FE TEH140M3R00FE TEH140M5R00FE TEH140M10R0FE TEH140M12R0FE TEH140M15R0FE TEH140M20R0FE rev 9/18-2 1-866-9-OHMITE * Int'l 1-847-258-0300 * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com 153 TEH140M33R0FE TEH140M50R0FE TEH140M75R0FE TEH140M100RFE TEH140M270RFE TEH140M330RFE TEH140M470RFE TEH140M750RFE TEH140M1K00FE TEH140M4K70FE TEH140M7K50FE TEH140M10K0FE Tolerance F = 1% J = 5%