PFS35 Power SMD Film Resistors • TO-263 Housing (D-Pak) • Resistances from 0.01Ohm to 51kOhms • Power Rating to 35Watt • Resistance Tolerances to ±1% • TCR to ±50ppm/°C • Load Stability to 1% • Low Ohm Values for Current Sense Applications • Exceptional Pulse Performance • Solder Reflow Secure at 260°C / 20s • Isolated Back Plate SPECIFICATIONS Type PFS35 Terminals 2 Terminal Finish Tin Plated Copper Power Rating (with heatsink) 35 W ( 2W on Simple Solder Pad ) Thermal Resistance Rthj-c 3.3 K/W Resistance Range 0.01 to 0.099Ohms 0.1 to 9.9Ohms 10 to 51KOhms Tolerances (others upon request) 5% 1% / 5% 1% Temperature Coefficient ±250 ppm/°C ±100 ppm/°C ±50 ppm/°C Operating Temperature -55°C to 175°C Max Operating Voltage 500V Inductance 8.4 nH Voltage Proof 2.0kV DC Insulation Resistance Over 1,000 Megohm Resistor Material Thin Film Load Life ±1% 90 min ON, 30 min OFF, 1000 hrs @ 25C Humidity ±1% 90-95% RH, 0.1W, 1000 hrs @ 40C Temperature Cycle ±0.25% -55C for 30 min, +155C for 30 min, 5 cycles Solder Heat ±0.1% 350C ±5C for 3 seconds Vibration ±0.25% IEC60068-2-6 Flammability UL94V-0 Reflow soldering lead-free soldering 260°C / 20s (2 reflow cycles maximum) Moisture Sensitivity Level MSL-1 Mass 1.5g Ordering Information Part Description: Part Type - Resistance - Tolerance PFS35 10 Ohms 1% Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 © Riedon, Inc. www.riedon.com sales@riedon.com Revised: 201908_004

PFS35 Power SMD Film Resistors Power Derating % Power Power Rating Notes - The PFS35 Series Resistors must be attached to a suitable +25 °C heatsink. The maximum internal resistor temperature is 175°C. 100 To specify an appropriate heatsink use the following formula : 80 T -(P*R )-T R = MAX HR A 60 HH P 40 Where: RqH = Thermal Resistance of Heatsink ( K/W ) 20 +175 °C RTqR = = T Mhearxmimaul mRe Tseismtapnecrea toufr eR oefs Risetosri s(t oKr/W ) MAX T = Ambient Temperature of Heatsink ( °C ) 0 A P = Power Through Resistor ( W ) -50 0 50 100 150 200 Flange Temperature (C) DIMENSIONS Back plate is isolated from both pins. tol. tol. P ulse peak power (W) Dimension mm (±mm) inches (±inches) 100k A 10.3 0.2 0.405 0.008 B 10.1 0.2 0.400 0.008 10k C 15.3 1.2 0.602 0.047 D 5.08 0.1 0.200 0.004 1k E 1.5 0.05 0.060 0.002 400W 1 00 F 0.75 0.05 0.030 0.002 35W G 2.2 0.2 0.087 0.008 10 H 4.5 0.2 0.177 0.008 10n 100n 1u 10u 100u 1m 10m 100m 1 10 100 J 0.5 0.05 0.020 0.002 Pulse width (seconds) K 2.5 0.5 0.10 0.02 Tenative continuous-pulse allowance at duty 0.01. Load life test will be necessary in actual equipment, because curve may be changed by resistance, repetition, duty L 5.0 1.0 0.20 0.04 and perating temperature. Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 © Riedon, Inc. www.riedon.com sales@riedon.com Revised: 201908_004