F e a T u r e s sP eci F ica T i O ns 85 Watt power rating at 25C Material TFH Series case temperature Resistor: thick film on alumina Non-inductive performance Lead: solder coated phosphor 85 Watt TO264 Package Low thermal resistance bronze Thick Film Power RoHS compliant design Solder: 100% Sn Two or three terminals versions Case: high temperature plastic 0.79 0.20 available P style M style P Package: middle terminal is (20.07mm) (5.08mm) (standard) (optional) Heat sink can be grounded electrically connected to header through middle terminal (P style) and insulated from left and right 0.25 terminals (6.35mm) M Package: no middle terminal 1.03 (26.16mm) 0.15 Electrical (3.81mm) Resistance range: 2-10K Max. working voltage: 500V or Ohms law limited 0.10 Thermal Resistance: 1.47C/W (2.54mm) 0.80 Temperature Coefficient: (20.32mm) 2-10: 100ppm 0.025 0.05 10-10K: 50ppm (0.64mm) (1.27mm) Insulation Resistance: 400M 0.07 Short time overload: 2x rated 0.21 Connected (1.78mm) power (not to exceed 1500V) (5.33mm) to metal 0.43 Derating: linear, 100% at 25C to header (10.92mm) 0% at 150C Dera T ing ordering information 100 85 Package Code 80 68 P = three terminals M = two terminals RoHS compliant 60 51 Tolerance 40 34 Series Ohms J= 5% R = Decimal Example: 20 17 10R2 = 10.2 ohms 100R = 100 ohms 10K0 = 10,000 ohms 0 0 0 25 50 75 100 125 150 175 Bottom of base plate Temperature, C Performance data standard Part numbers for tfH series Load life 1000 hrs rated power max. R 1% P-type M-type Ohms 3-terminal 2-terminal Moisture resistance MIL -STD-202, method 106 max. R 0.5% 2 TFH85P2R00JE Short time overload 2x rated power for 5 sec., max. R 0.3% 3 TFH85M3R00JE not to exceed 1500 V 5.1 TFH85P5R10JE Solderability MIL-STD-202, method 208 6.8 TFH85M6R80JE 7.5 TFH85P7R50JE Thermal shock MIL-STD-202, method 170, cond. F max. R 0.2% 10 TFH85P10R0JE TFH85M10R0JE 15 TFH85P15R0JE 24 TFH85M24R0JE 33 TFH85M33R0JE THIS PRODUCT IS DESIGNED FOR 39 TFH85P39R0JE USE WITH PROPER HEATSINKING. 51 TFH85P51R0JE TFH85M51R0JE 68 TFH85P68R0JE Maximum base plate temperature of the resistor must 75 TFH85P75R0JE 100 TFH85P100RJE TFH85M100RJE be monitored and kept within specified limits to es- 150 TFH85M150RJE 220 TFH85P220RJE tablish the power rating. Best technique is to attach a 330 TFH85P330RJE 470 TFH85M470RJE thermocouple to the side of the base plate of the resis- 750 TFH85P750RJE 1000 TFH85P1K00JE TFH85M1K00JE tor. Temperature of plastic housing or heat sink cannot 1500 TFH85P1K50JE be used to establish rating of the resistor. 2700 TFH85M2K70JE 3300 TFH85P3K30JE 4700 TFH85M4K70JE 6800 TFH85P6K80JE 7500 TFH85P7K50JE To see the latest in resistor 10000 TFH85P10K0JE TFH85M10K0JE technology click on the Whats Check product availability at www.ohmite.com new tab at ohmite.com 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com Ohmite Mfg. Co. 65 Percent Rated Power Wattage
