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| PF2200 Series TO-220 Power Film Resistors * * * * * * * TO-220 Housing Rated Power to 50 Watts Resistances from 0.01 to 51K Ohms High Stability Film Resistance Elements Resistance Tolerance to 0.05% Low Inductance ( <50nH ) Isolated Mounting Tab SPECIFICATIONS Power Rating Thermal Resistance Type Resistance Range3 Min 0.01W 220W 0.01W 220W 0.01W 220W 0.1W Max 220W 51KW 220W 51KW 220W 51KW 51KW Heatsink1 Free Air2 Tolerances 1% ( R 0.1W ) 5% 1%, 5% 1% ( R 0.1W ) 5% 1%, 5% 1% ( R 0.1W ) 5% 1%, 5% 0.1%, 0.25% ( R 5W ) 0.5% ( R 1W ) 1% 1 2 Temperature Coefficients 50ppm/C ( R10W ) 100ppm/C ( 0.1W R < 10W ) 250ppm/C ( R < 0.1W ) 50ppm/C 50ppm/C ( R10W ) 100ppm/C ( 0.1W R < 10W ) 250ppm/C ( R < 0.1W ) 50ppm/C 50ppm/C ( R10W ) 100ppm/C ( 0.1W R < 10W ) 250ppm/C ( R < 0.1W ) 50ppm/C 5 ( R 1W ) 25ppm/C ( R< 1W ) 50W PF2205 30W 35W PF2203 20W 20W PF2202 10W PF2201 10W 1W 1W 1W 1W 1W 1W 0.5W 2.3C/W 2.3C/W 3.3C/W 3.3C/W 5.9C/W 5.9C/W 3.3C/W Power rating based on 25C Flange Temperature Power rating based on 25C Ambient Temperature 3 Consult Factory for Higher or Lower Values Ordering Information Part Number - Resistance - Tolerance - TCR Example: PF2203 0.5 Ohm 1% 100ppm Riedon Inc. 11/10 300 Cypress Avenue Alhambra CA 91801 www.riedon.com (626) 284-9901 (626) 284-1704 PF2200 Series TO-220 Power Film Resistors SPECIFICATIONS (continued) Specification Maximum Current Temperature Range Dielectric Strength Max. Operating Voltage Insulation Resistance Value 25A -55C to +155C : PF2202, PF2203, PF2205 -55C to +120C : PF2201 2000 VAC 500 V >1000 Meg-Ohm Environmental Performance Load Life Humidity Resistance Temperature Cycle Solder Heat Vibration DR 1% + 0.05W 1% + 0.05W 0.25% + 0.05W 0.1% + 0.05W 0.25% + 0.05W Test Conditions 25C, 90 min ON, 30 min OFF, 1000 hr 40C, 90-95% RH, DC 0.1W, 1000 hr -55C for 30 min, +155C for 30 min, 1000 hr +350C, 3s IEC60068-2-6 Power Derating Curve 120 100 Power Rating Notes The PF2200 Series Foil Resistors must be attached to a suitable heatsink. The maximum internal resistor temperature is 155C (120C for the PF2201). Power ( % ) 80 60 40 20 0 PF 22 05 ,P F2 PF 20 22 3, To specify an appropriate heatsink use the following formula : PF 22 02 01 RqH = TMAX - ( P x RqR ) - TA P 150 175 -25 0 25 50 75 100 125 Where: Ambient Temperature (C) RqH = Thermal Resistance of Heatsink ( C/W ) RqR = Thermal Resistance of Resistor ( C/W ) TMAX = Maximum Temperature of Resistor TA = Ambient Temperature of Heatsink ( C ) P = Power Through Resistor ( W ) Mounting Notes The PF2200 Series Film Resistors must be attached to a suitable heatsink. Mount resistor using thermal grease to a clean, flat surface. Use a compression washer to provide 150 to 300 pounds ( 665 to 1330N ) of mounting force. Torque mounting screw to 8 in-lbs ( 0.9 N-m ). Mounting tab is isolated from both pins. Riedon Inc. 11/10 300 Cypress Avenue Alhambra CA 91801 www.riedon.com (626) 284-9901 (626) 284-1704 |
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