KHR 4-T600 T900 Power Resistors • • • • • Resistances from 100Ohm to 1kOhms Power Rating to 900Watt Resistance Tolerances to ±10% TCR to ±100ppm/K TO-227 (TO-238) Housing SPECIFICATIONS Type KHR 4-T600 Resistance Range KHR 4-T900 100 Ohms to 1kOhm Number of Resistors double single Power Rating with Heatsink 600 W 900 W Thermal Resistance Rthj-c 0.22 K/W 0.15 K/W Tolerances ±10% other Tolerances upon request Load Life 1% Short Time Overload Rated Power x 2.5 (2.5 seconds monted on heatsink) Temperature Coefficient ±100ppm/K Max. Voltage E = √PxR Voltage Proof 2.5kVAC Operating Temperature Range -55 to 155°C Resistor Material Thick film Substrate AlN Housing PCB Connector Material Cu nickel plated Terminals 4 Ordering Information Part Number - Resistance - Tolerance KHR 4-T900 10.5 kOhms 10% Riedon Inc. 1.01 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 58 KHR -T600 T900 Power Resistors SPECIFICATIONS (continued) Temperature Coefficient 100ppm/K ∆R/R (ppm) 7000 50ppm/K 2000 -3000 -8000 -50 -25 0 25 50 Temperature (°C) 100 125 Temperature Rise Derating 120 140 Temperature rise (°C) Power (% from nominal power) 75 100 80 60 40 20 KHR 4-T600 120 100 KHR 4-T900 backplate 80 60 40 20 0 0 0 25 50 75 100 125 155 0 300W 600W 900W Applied power (W) Temperature of the backplate (°C) Dimensions Riedon Inc. 1.01 300 Cypress Avenue Dimension mm tol. (±mm) inches tol. (±inches) A 25.00 0.5 0.98 0.020 B 38.00 0.5 1.50 0.020 C 13.00 0.5 0.51 0.020 D 3.20 0.1 0.13 0.004 E 30.00 0.2 1.18 0.008 F 15.00 0.5 0.59 0.020 G 8.00 0.2 0.31 0.008 H 8.00 0.2 0.31 0.008 I 2.00 0.2 0.08 0.008 J 0.80 0.1 0.03 0.004 K M4 L 10.45 0.2 0.41 M4 0.008 M 15.00 1.0 0.59 0.020 Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 59