FPR / FPS 2-T220 4-T220 2-T221 4-T221 • • • • • • • • Extremly Low-Ohm Small Dimensions High Stability Low Inductance Low Electrical Noise Low Temperature Coefficient TO220-Housing SMD available SPECIFICATIONS ELECTRICAL Resistor Range : 0R002 ... 50R Power Rating : 1.5 W (70°C) 15 W with heatsink Thermal Resistance Rthj-c : 4.8 K/W Tolerances from 0R002 from 0R010 : : : from 0R100 : 2%, 5% / 4-pin version also 1.0% 1%, 2%, 5% 4-pin version also 0.1% and 0.25% 0.5%, 1%, 2%, 5% 4-pin version also 0.1% and 0.25% 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 FPR 2-T220/221 R<0R2 TCR-Shift depends on resistor value (see table next page) Max. Current : 50 A Insolation Resistance : 300 VDC Thermal EMF : < 1 µV/K : -40°C...130°C : : : : : Metalfoil CuNiMn (DIN 17471) Al2O3 or anodized aluminium Epoxidharz or PPS Cu tinned, 2-pin or 4-pin 1 Nm / T221: 0.8 Nm ENVIRONMENTAL Operating Temperature MECHANICAL Resistor Material Substrate Housing Connector Material Max. torque backplate 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 FPR / FPS 2-T220 4-T220 2-T221 4-T221 TEMPERATURE COEFFICIENT 250 2000 + 15 ppm/K 1000 -1000 - 15 ppm/K -2000 -3000 Limit 2 (3σ) -4000 -5000 100 50 Nominal dR/R -6000 80 60 100 120 140 Resistance Value (mOhm) Temperature (°C) DERATING CURVE Power ( % from nominal power) 120 100 0,5% 80 0,2% % 0,1% 60 40 20 0 25 50 85 100 115 130 Tem perature of the backplate (°C) DIMENSIONS FPR 2-T220 200 40 50 20 100 0 20 -20 10 0 Limit 1 (3σ) 2 -7000 -40 150 5 dR/R (ppm ) 0 TCR - Shift (ppm/K) 200 FPR 4-T220 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 FPR / FPS 2-T220 4-T220 2-T221 4-T221 DIMENSIONS FPR 2-T221 FPR 4-T221 FPS 2-T220 FPS 4-T220 HOW TO ORDER FPR 2-T220 10R 0.25% FPR 2-T221 0R068 0.5% FPS 2-T220 1R0 1% FPR 4-T221 0R1 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