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| 20W TO-263 HIGH POWER SURFACE MOUNT RESISTORS Features.................................................................. . Non-Inductive, Small, 20 Watt high power resistor. TO-263 surface mount package offering a very low thermal resistance. Small thin package for high density PCB installation. RoHS compliant. Suitable for board mounting with either solder or clip. Applications...................................................... High frequency emitter resistors in switching power supplies. High precision CRT color video amplifiers. High frequency snubber and pulse handling circuits. Pulse generator load resistors. In-rush current protection Bleeder Resistors ......... Specification Dimensions (mm) 10.6max 4.5 1.5 2.0+/-0.5 3.0+/-0.5 10.3+/-0.5 10.6max 1.6+/-0.2 1.7+/-0.5 10.16 2.03 5.08 12.7 SMHP 2.0+/-0.5 10.3+/-0.5 (15.3) 0.75 1.5 5.08 0.5 2.7 1.4+/-0.2 Tolerances +/-0.1 unless otherwise marked Specifications subject to change without notice Items Power Rating Power Rating Thermal Resistance Resistance Range Nominal Resistance Series TCR(ppm/C) Tolerance Operation Temp. Range Max. Operating Voltage Dielectric Withstanding Voltage. Load Life Humidity Temp. Cycle Soldering Heat (Max) Solderability Insulation Resistance Vibration Specification 20 Watt 2.25 Watt 3.3C/W 0.1-9.1 E12 100 +/-1% & +/-5% -55C to+155C 500V or P R 2000 V DC R +/- (1.0% + 0.05 ) R +/- (1.0% + 0.05 ) R +/- (0.25% + 0.05 ) R +/- (0.1 %+0.05 ) Min. 90% coverage Over 1,000 Meg R +/- (0.25% + 0.05 ) Test Conditions -55C to 25C flange temperature Without heatsink Resistor hot spot to flange Up to 51K also available Including 2.5 and 5.0 For -55C to +155 C 0.01-0.09 E6 250 +/-5% 10-220 E24 50 +/-1% 60 seconds. 25 C, 90 min.ON, 30 min. OFF, 1000 hours. 40C, 90-95%RH, DC 0.1W, 1000 hours. -55C,30 min.,+155C,30 min., 5cycles 250+/-5C, 3seconds, 230+/-5C, 3seconds. Between terminals and tab. Notes: 1. Electrically isolated metal tab. 2. Contact factory for custom products, non-standard values and tolerances. 3. Current rating: 25A maximum. 1 3.81 17.78 SMHP 20 20W TO-263 HIGH POWER RESISTORS % Power 100 80 Derating Curve +25 C Temperature rise (C) 120 . Temperature Rise 100 80 60 40 20 0 -50 0 +155 C 60 40 20 50 100 150 Flange Temperature (C) 200 0 0 10 20 Applied Power (W) 30 Tape Dimensions and Orientation 16.0 5.0 0.4 10.8 4.0 2.0 16.3 11.5 Reel Dimension: Outer Diameter: 300 mm Inner Diameter: 100 mm Width: 23.9 mm min. 27.4 mm max Quantity: 500pcs/reel 1.75 24.0 Reel Orientation: Units to be orientated with Pins facing Sprocket Holes FR4 Thermal PCB Characterisation Pad Dimensions (x,y mm) 50, 40 45, 35 40, 30 35, 25 20, 10 P90 C, 35um (W) x mm 4.5 4 3.5 3 2 y mm Temperature measurement Notes: Characterisation carried out using 35m PCB copper pad weights, with the temperature of 90C used as a maximum reference on the PCB. P90 C, 35um (W) is power when the measurement point reaches 90 C Ordering Information SMHP 20 500 F Model Resistance Code 0.1 : 0R100 50 : 500 First two digits significant, last digit: number of trailing zeros Tolerance J = 5% Tol F = 1% Tol 2 |
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