FHR 4-2321 0R001 S 1% Q Powertron

FHR 4-2321 Powertron FEATURES Resistances from 0.001Ohm to 50Ohms Power Rating to 40Watt Resistance Tolerances to 0.1% TCR to 15ppm/K Very Low Inductance Load Stability to 0.1% TABLE 1SPECIFICATIONS TYPE FHR 4-2321 Resistance Range 0.001 to 50 Ohms Free air 70C 3W Power Rating With heatsink 40W Tolerances from 0R001 1% / 2% / 5% from 0R005 0.5% / 1% / 2% / 5% from 0R01 0.1% / 0.25% / 0.5% / 1% / 2% / 5% Thermal Resistance 2.0 K/W 0.1% / 0.2% / 0.5% Stability (1000h) (depends on stress) Temperature Coefficient 0.001 to 100 Ohms (Q) 25ppm/K (20 to 60C) Option 1 (P) upon request for selected values 15ppm/K (20 to 60C) other specifications upon request Voltage Proof 300 VDC Maximum Current 150 A Thermal EMF < 1V/K Operating Temperature Range -40 to 130 C Resistor Material CuNiMn-Foil Substrate Anodized aluminium Housing Epoxy Connector Material Cu / tinned Terminals 4 (standard contact S) Max. Torque 0.8 Nm ORDERING INFORMATION Part Number - Resistance - Contact - Tolerance - TCR FHR 4-2321 0R002 S 1% Q Document No.: 64246 For technical questions, www.powertron.de Revision: 03-04-2014 contact powertron vishaypg.com 1FHR 4-2321 Powertron FIGURE 1TEMPERATURE COEFFICIENT 2000 0 Limit 2 -2000 -4000 Nominal R/R -6000 -8000 Limit 1 -10000 -40 -20 0 20 40 60 80 100 120 140 Temperature (C) FIGURE 2DERATING Power Rating Notes - The FHR Series Resistors must be attached to a suitable heat- sink. The maximum internal resistor temperature is 130C. 120 0.5% To specify an appropriate heatsink use the following formula : 100 0.2% 80 0.1% R = T - ( P x R ) - T 60 qH MAX qR A 40 P 20 0 Where: R = Thermal Resistance of Heatsink ( K/W ) qH 25 50 85 100 115 130 R = Thermal Resistance of Resistor ( K/W ) qR Temperature of the backplate (C) T = Maximum Temperature of Resistor MAX T = Ambient Temperature of Heatsink ( C ) A P = Power Through Resistor ( W ) FIGURE 3DIMENSIONS in mm (inches) Dimension A 0.2 (0.008) 17.25 (0.68) B 0.2 (0.008) 22.30 (0.88) C 0.1 (0.004) 3.20 (0.13) D 0.1 (0.004) 3.20 (0.13) E 0.2 (0.008) 16.75 (0.66) F 0.2 (0.008) 7.62 (0.30) G 0.2 (0.008) 17.78 (0.70) H 0.2 (0.008) 1.50 (0.06) I 0.2 (0.008) 1.10 (0.04) J 0.1 (0.004) 2.00 (0.08) K 0.1 (0.004) 3.00 (0.12) L 0.2 (0.008) 8.00 (0.31) M 0.2 (0.008) 3.00 (0.12) N 0.1 (0.004) 1.50 (0.06) O 0.1 (0.004) 4.50 (0.18) P 0.2 (0.008) 3.75 (0.15) Q 0.1 (0.004) 0.80 (0.03) R 0.2 (0.008) 2.10 (0.08) www.powertron.de For technical questions, Document No.: 64246 2 contact powertron vishaypg.com Revision: 03-04-2014 Power ( % from nominal power) R/R (ppm)