FPS 2-T220 FPS 4-T220 • • • • • • Extremly Low-Ohm Small Dimensions High Stability Low Inductance Low Electrical Noise Low Temperature Coefficient SPECIFICATIONS ELECTRICAL Resistance Range : 0R002 ... 50R Power Rating : 1.5 W (70°C) 15 W with heatsink Thermal Resistance Rthj-c : 4.8 K/W from 0R002 from 0R010 : : from 0R100 : 2%, 5% 1%, 2%, 5% 4-terminal version also 0.1% and0.25% 0.5%, 1%, 2%, 5% 4-terminal version also 0.1% and0.25% Tolerance Stability : 0.1%, 0.2%, 0.5% (depends on the stress) Temperature Coefficient : ±15 ppm/K (20...60)°C / ±50 ppm/K (-40...130)°C FPS 2-T220 from R<0R2 TCR-Shift depends on resistor value (see table next page) Max. Current : 25 A Insolation Resistance : 300 VDC Thermal EMF : < 1 µV/K : -40°C...130°C Resistor Material Substrate : : Housing Connectors : : Metalfoil CuNiMn (DIN 17471) anodized aluminium mounted on nickelt Copperplate PPS Cu tinned, 2-pin or 4-pin ENVIRONMENTAL Operating Temperature Range MECHANICAL Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, UK Tel. + 44 (0) 1342 835234, Fax. + 44 (0) 1342 834306, e-mail [email protected] web www.willow.co.uk FPS 2-T220 FPS 4-T220 TEMPERATURE COEFFICIENT 2000 250 + 15 ppm/K 1000 200 -1000 - 15 ppm/K -2000 -3000 Limit 2 (3σ) -4000 -5000 Nom inal dR/R TCR - Shift (ppm/K) dR/R (ppm ) 0 150 100 50 -6000 Limit 1 (3σ) 120 0 140 Tem perature (°C) 200 100 50 80 60 100 40 20 20 10 0 5 -20 2 -7000 -40 Resistance Value (mOhm) DERATING CURVE Power ( % from nominal power) 120 100 0,5% 80 0,2% % 0,1% 60 40 20 0 25 DIMENSIONS 50 85 100 115 130 Tem perature of the backplate (°C) FPS 2-T220 FPS 4-T220 HOW TO ORDER FPS 2-T220 1R0 1% FPS 4-T220 R010 0.5% Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, UK Tel. + 44 (0) 1342 835234, Fax. + 44 (0) 1342 834306, e-mail [email protected] web www.willow.co.uk