KPR4-T227

KPR KPN 2/4-T227 KHR KHN 2/4-T227 Power Resistors • • • • • Resistances from 0.05Ohm to 5MOhms Power Rating to 200Watt Resistance Tolerances to ±1% TCR to ±50ppm/K TO-227 (TO-238) Housing SPECIFICATIONS Type Resistance Range Power rating with heatsink Thermal Resistance Rthj-c Tolerances from 0.05 Ohms from 0.1 Ohms Stability Temperature Coefficient 0.05 to 0.099 Ohms 0.1 to 5 MOhms Voltage Proof Inductivity Capacity Max. Voltage depending on resistance value 100 W 0.7 K/W 2% / 5% / 10% 1% / 2% / 5% / 10% 1% ±300 ppm/K ±100 ppm/K upon request ±50 ppm/K 2.5 kVDC ≤ 50 nH ≤ 35 pF KPR 2/4-T227 KPN 2-T227 0.05 Ohms to 5 MOhms KHR 2/4-T227 KHN 2-T227 200 W 0.35 K/W 10000 max. working voltage (VDC) 1000 100 10 1 10 Ohm Operating Temperature Range Resistor Material Substrate Housing Connector Material Terminals Max. Torque backplate terminals 100 Ohm 1 kOhm 5 kOhm 10 kOhm 100 kOhm -55 to 155°C Thick Film Al2O3 Epoxy or Plastic Cu tinned 2 or 4 1.5 Nm 1.3 Nm Ordering Information Part Number - Resistance - Tolerance KHR 2-T227 10 Ohms 5% Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 www.riedon.com (626) 284-9901 (626) 284-1704 Page 62 rev. 03/2006A KPR KPN 2/4-T227 KHR KHN 2/4-T227 Power Resistors SPECIFICATIONS (continued) Temperature Coefficient 100ppm/K 7000 ∆R/R (ppm) 50ppm/K 2000 -3000 -8000 -50 -25 0 Temperature (°C) 25 50 75 100 125 Derating 120 100 Power Rating Notes - Power ( % from nominal power) 80 60 40 20 0 50 75 85 100 115 130 145 155 Temperature of the backplate (°C) The KPR / KPN / KHR / KHN Series Resistors must be attached to a suitable heatsink. The maximum internal resistor temperature is 155°C. To specify an appropriate heatsink use the following formula : RqH = TMAX - ( P x RqR ) - TA P Where: RqH = Thermal Resistance of Heatsink ( K/W ) RqR = Thermal Resistance of Resistor ( K/W ) TMAX = Maximum Temperature of Resistor TA = Ambient Temperature of Heatsink ( °C ) P = Power Through Resistor ( W ) Pulse Stability 10kJ 3kJ 1kJ 300J Pulse Energy 100J 30J 10J 3J 1J 0,3J 0,1J 01 02 05 0, 00 0 0, 00 0 00 00 00 0, 0, 0, 0, 0, 0, 10 0 rev. 03/2006A 1 2 2 5 5 10 20 0, 0, Pulse time (s) Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 www.riedon.com 0, (626) 284-9901 (626) 284-1704 Page 63 50 1 2 5 1 2 5 KPR KPN 2/4-T227 KHR KHN 2/4-T227 Power Resistors SPECIFICATIONS (continued) Dimensions and Attachment Variations Dimension A B C D E F G H I J K L M N O mm 26 38 12.7 4 30 15 4.1 10 8 4 2 0.8 M4 10 11.9 0.2 0.2 tol. (±mm) 0.5 0.5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 inches 1.02 1.50 0.50 0.16 1.18 0.59 0.16 0.39 0.31 0.16 0.08 0.03 M4 0.39 0.47 0.008 0.008 tol. (±inches) 0.020 0.020 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.004 KPR/KHR 2-T227 KPR/KHR 4-T227 KPN/KHN 2-T227 KPR/KHR 2-T227 dia1 KPR/KHR 2-T227 dia2 Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 www.riedon.com (626) 284-9901 (626) 284-1704 Page 64 rev. 03/2006A