MODEL SMHP SMHP Series * 20W High Power Resistors * TO-263 Surface Mount * RoHS Compliant. 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. * Suitable for board mounting with either solder or clip. APPLICATIONS * High frequency emitter resistors in switching power supplies. * High precision CRT colour video amplifiers. * High frequency snubber and pulse handling circuits. * Pulse generator load resistors. * In-rush current protection. * Bleeder Resistors. DIMENSIONS (mm) SMHP M E B D mm mm A 10.1 0.2 B 10.3 0.2 C 4.5 0.2 D 5.0 1.0 E 2.5 0.5 F 2.2 0.2 G 2.75 0.2 H 0.5 0.05 J 0.75 0.05 K 1.5 0.05 L 5.08 0.10 M 1.5 0.05 F L H K G A J C General Note BI Technologies reserves the right to make changes in product specification without notice or liability (c) BI Technologies Limited * Glenrothes, Fife KY7 4NX, UK Telephone: +44 (0) 1592 662200 * Facsimile: +44 (0) 1592 662299 * Website: www.bitechnologies.com * Email: sales@bitechnologies.co.uk A subsidiary of TT electronics plc SMHP Series Issue August 08 MODEL SMHP ELECTRICAL ITEMS SPECIFICATION TEST CONDITIONS 20 Watt Power Rating Thermal Resistance Resistance Range -55C to +25C Flange Temperature 2.25 Watt Without Heatsink 3.3C/ W Resistor Hotspot to Flange 0.01 - 0.09 0.1 - 9.1 10 - 220 Nominal Resistance Series E6 E12 E24 TCR (ppm/C) 250 100 50 Tolerance 5% 1% & 5% 1% Operation Temperature Range Up to 51K also available Including 2.5 and 5.0 For -55C to +155C -55C to +155C Maximum Operating Voltage 500V or PR Dielectric Withstanding Voltage 2000 Vdc 60 Seconds Load Life R = 1% +0.5 25C, 90 min ON, 30 min OFF, 1000 Hours Humidity R = 1% +0.5 40C, 90 - 95%RH,DC 0.1W, 1000 Hours Temperature Cycle R = 1% +0.5 -55C, 30 min, +155C, 30 min, 5 cycles Soldering Heat (Max.) R = 1% +0.5 250 5C, 3 seconds Minimum 90% Coverage 230 5C, 3 seconds Solderability Insulation Resistance Over 1,000 Meg Vibration Between Terminals and Tab R = 0.25% +0.5 Notes: 1. Electrically isolated metal tab. 2. Contact Factory for custom products, non-standard values and tolerances 3. Current Rating: 25A Maximum. TAPE DIMENSIONS & ORIENTATION 5.0 16.0 0.4 1.75 4.0 2.0 24.0 11.5 16.3 Reel Dimension: Outer Diameter: 300mm Inner Diameter: 100mm Width: 23.9mm Min. - 27.4mm Max. Quantity: 500 pcs/Reel Reel Orientation: Units to be orientated with Pins facing Sprocket Holes. General Note BI Technologies reserves the right to make changes in product specification without notice or liability (c) BI Technologies Limited * Glenrothes, Fife KY7 4NX, UK Telephone: +44 (0) 1592 662200 * Facsimile: +44 (0) 1592 662299 * Website: www.bitechnologies.com * Email: sales@bitechnologies.co.uk A subsidiary of TT electronics plc SMHP Series Issue August 08 MODEL SMHP DERATING CURVE TEMPERATURE RISE Temperature Rise (C) % Power 120 100 100 80 60 50 40 20 0 25 70 0 155 10 20 30 Applied Power (W) Flange Temperature (C) FR4 THERMAL PSB CHARACTERISATION x mm Pad Dimensions (x,y mm) P90C, 35m (W) 50,40 4.5 45,35 4 40,30 3.5 35,25 3 20,10 2 Temperature Measurement y mm Notes: Characterisation carried out using 35m PCB Copper pad weights, with the temperature of 90C used as a maximum reference on the PCB. P90C, 35m (W) is power when the measurement point reaches 90C. ORDERING INFORMATION SMHP 20 500 F T13 Model Tape & Reel: 13" Reel (500 pcs per reel) Resistance Code: (No code used for Magazines) 0.1 : 0R100 50 : 500 First two digits significant, last digit denotes number of trailing zeros Tolerance: J = 5% Tolerance F = 1% Tolerance General Note BI Technologies reserves the right to make changes in product specification without notice or liability (c) BI Technologies Limited * Glenrothes, Fife KY7 4NX, UK Telephone: +44 (0) 1592 662200 * Facsimile: +44 (0) 1592 662299 * Website: www.bitechnologies.com * Email: sales@bitechnologies.co.uk A subsidiary of TT electronics plc SMHP Series Issue August 08