TEH140 Series 140 Watt TO-247 Power Resistors for High Frequency and Pulse Loading Applications FEa TurES 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 con- trol as harmonic filter, dumping, snubber, gate control, bleeder resistor and rush current protection SpEciFica TionS Resistance range* Nom. Resistance TCR Tolerance 0.01 - 0.099 +E12 >250ppm/C 5% 0.1 - 510K +E24 100ppm/C 1%, 5% cHaracTEriSTicS Construction Thick Film Short Time Overload 0.5% 1.5 times rated power for 5 seconds Rating Power 140 Watts at 25C flange tem- 2500VAC 60 seconds. 1mA perature Withstanding Voltage Rating Power 3.0 Watts, Free air. Load Life 1.0% 25C, 90 min.ON, 30min.OFF, 1000hours. Heat Resistance 0.9C/W From resistor to flange Humidity 1.0% 70C, 90 - 95%RH, DC0.1W, Capacitance 3.68 pF At point of terminal 1000hours. length 10mm 0.25% -55C, 30 min., +155C Temperature Cycle 12.25 nH At point of terminal Inductance 30min., 5 cycles. length 10mm Soldering Heat 0.25% 3505C, 3seconds, Operation Temp. Range -55 - +175C Solderability Over 3/4 of 2305C, 3seconds. Max. Applied Voltage 500V or PR round Max. Operating Current 120A Over 1000M Between terminals and tab. Insulation Resistance 7.2 grams Weight 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 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. (continued) 152 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.comTEH140 Series 140 Watt TO-247 Power Resistors for High Frequency and Pulse Loading Applications cHaracTEriSTicS Derating Frequency Characteristics Pulse Energy Durability Temperature Rise 140 1000 160 100k 120 Resistor film 10k 120 100 temperature refer 100 to flange 80 with heat-sink +25C 1k 80 60 1350W 10 140W 40 +175C 100 40 20 0 1 10 0 10n 1u 100u 10m 1 100 -50 0 50 100 150 200 0 20 40 60 80 100 120 140 10K 100K 1M 10M 100M 1G 100n 10u 1m 100m 10 Flange Temperature (C) Frequency (MHz) Applied Power (W) Pulse width (seconds) Tentative continuous-pulse power allowance at duty 0.01. Load life Construction test will be necessary in actual equipment, Because curve will be changed by resistance, repeti- Leads, Tin plated Cu tion, duty and operating tempera- Molding, epoxy ture. Dotted is estimation. Conductor, Cu Resistor, cermet or NiCr Substrate, Alumina Flange, Ni plated Cu Between flange and resistor are insulated dimEnSionS ordEring inForma Tion (in./mm) RoHS Compliant 0.630 .008 0.189 .008 (16mm .2) (4.8mm .2) TEH140M10R0FE Series Modifier Ohms Tolerance 0.200 .020 R = Decimal F= 1% (5.1mm .5) Example: J= 5% 2R50 = 2.50 0.787 .020 25R0= 25 (20mm .5) 0.140 .004 100R = 100 1K00 = 1000 (3.55mm .1) 0.110 .008 Standard part numbers (2.8mm .2) 0.571 .020 TEH140MR010JE TEH140M33R0FE (14.5mm .5) 0.143 .007 TEH140MR050FE TEH140M50R0FE 0.031 .004 TEH140MR030FE TEH140M75R0FE (3.63mm .18) (0.80mm .1) TEH140MR040FE TEH140M100RFE 0.060 .004 TEH140M1R00FE TEH140M270RFE (1.52mm .1) 0.143 .008 TEH140M2R00FE TEH140M330RFE TEH140M3R00FE TEH140M470RFE (3.63mm .2) TEH140M5R00FE TEH140M750RFE 0.400 .010 TEH140M10R0FE TEH140M1K00FE (10.16mm .26) TEH140M12R0FE TEH140M4K70FE TEH140M15R0FE TEH140M7K50FE TEH140M20R0FE TEH140M10K0FE rev 2/20-1 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 153 % Rated Power Impedance (ohm) Pulse peak power (W) Temperature Rise (C)