KHR2-T227 RIEDON | Alldatasheet
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Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 62 rev. 03/2006A KPR KPN 2/4-T227 KHR KHN 2/4-T227 Power Resistors Type KPR 2/4-T227 KPN 2-T227 KHR 2/4-T227 KHN 2-T227 Resistance Range 0.05 Ohms to 5 MOhms Power rating with heatsink 100 W 200 W Thermal Resistance Rthj-c 0.7 K/W 0.35 K/W Tolerances from 0.05 Ohms from 0.1 Ohms 2% / 5% / 10% 1% / 2% / 5% / 10% Stability 1% Temperature Coefficient 0.05 to 0.099 Ohms 0.1 to 5 MOhms ±300 ppm/K ±100 ppm/K upon request ±50 ppm/K Voltage Proof 2.5 kVDC Inductivity ≤ 50 nH Capacity ≤ 35 pF Max. Voltage depending on resistance value 100 1000 10000
10 Ohm 100 Ohm 1 kOhm 5 kOhm 10 kOhm 100 kOhm
max. working voltage (VDC) Operating Temperature Range -55 to 155°C Resistor Material Thick Film Substrate Al2O3 Housing Epoxy or Plastic Connector Material Cu tinned Terminals 2 or 4 Max. Torque backplate terminals 1.5 Nm 1.3 Nm SPECIFICATIONS Part Number - Resistance - Tolerance KHR 2-T227 10 Ohms 5%
Ordering Information
Resistances from 0.05Ohm to 5MOhms Power Rating to 200Watt Resistance Tolerances to ±1% TCR to ±50ppm/K TO-227 (TO-238) Housing
Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 63 rev. 03/2006A 0,0002 0,0005 0,001 0,002 0,005 0,01 0,02 0,05 0,1 0,2 0,5 1 2 5 10 20 50 100 Pulse time (s) Pulse Energy 10kJ 3kJ 1kJ 300J 100J 30J 10J 0,3J 0,1J -8000 -3000 2000 7000 -50 -25 0 25 50 75 100 125 50ppm/K 100ppm/K ∆R/R (ppm) Temperature (°C) 100 120 50 75 85 100 115 130 145 155 Temperature of the backplate (°C) Power ( % from nominal power) Temperature Coefficient SPECIFICATIONS (continued) KPR KPN 2/4-T227 KHR KHN 2/4-T227 Pulse Stability Derating Power Resistors Power Rating Notes - The KPR / KPN / KHR / KHN Series Resistors must be attached to a suitable heatsink. The maximum internal resistor tempera- ture is 155°C. To specify an appropriate heatsink use the following formula : RqH = TMAX - ( P x RqR ) - TA P Where: R qH = Thermal Resistance of Heatsink ( K/W ) R qR = Thermal Resistance of Resistor ( K/W ) T MAX = Maximum Temperature of Resistor T A = Ambient Temperature of Heatsink ( °C ) P = Power Through Resistor ( W )
Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 64 rev. 03/2006A SPECIFICATIONS (continued) Power Resistors Dimensions and Attachment Variations KPR/KHR 2-T227 Dimension mm tol. (±mm) inches tol. (±inches) A 26 0.5 1.02 0.020 B 38 0.5 1.50 0.020 C 12.7 0.2 0.50 0.008 D 4 0.2 0.16 0.008 E 30 0.2 1.18 0.008 F 15 0.2 0.59 0.008 G 4.1 0.2 0.16 0.008 H 10 0.2 0.39 0.008 I 8 0.2 0.31 0.008 J 4 0.2 0.16 0.008 K 2 0.2 0.08 0.008 L 0.8 0.1 0.03 0.004 M M4 M4 N 10 0.2 0.39 0.008 O 11.9 0.2 0.47 0.008 KPR/KHR 4-T227 KPN/KHN 2-T227 KPR KPN 2/4-T227 KHR KHN 2/4-T227 KPR/KHR 2-T227 dia1 KPR/KHR 2-T227 dia2