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| SURFACE MOUNT MOULDED POWER RESISTOR Features.................................................................. Non-Inductive, Moulded Small, in circuit 10W. Very low thermal resistance in multiple planes SOIC type Package. RoHS compliant. . 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 Outline Dimensions 11.3 max .445 9.30+/-0.1 .366+/-.005 0.20 Typ .008 0.96 Typ .038 3.50 .138 9.00 .354 8.4 max .330 5.59+/-0.13 .220+/-.005 Rear view Solderable area Dimensions: mm inches Specifications subject to change without notice. Items Power Rating Short time overload Resistance Range () Nominal Resistance Series TCR(ppm/C), see note 2. Tolerance Operating Temp. Range Max. Operating Voltage Dielectric Withstanding Voltage. Load Life Humidity Temp. Cycle Soldering Heat (Max) Solderability Insulation Resistance Vibration Specification 10 Watts 50W for 5s 10 to 10K E12 100ppm/C 10 and above +/-1% & +/-5% -55C to+155C 500VDC or (P.R) 4000 V DC R +/- (1 % + 0.05 ) R +/- (1 % + 0.05 ) R +/- (0.25% + 0.05 ) R +/- (0.25 %+0.05 ) Min. 95% coverage Over 1,000 Meg R +/- (0.25% + 0.05 ) Test Conditions 25C ambient. Note 1 25C ambient. Note 1 -55C to +155 C 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. Tested in accordance with JD51 mounting instructions, in 5W application 10W available. 2. Contact factory for values below 10.. 3. Contact factory for custom products, non-standard values and tolerances 1 Surface Mount Moulded Power Resistor Derating Curve % Power (see Note 1) 100 80 60 40 20 0 -50 +155 C +25 C 0 50 100 150 Ambient Temperature (C) 200 Mounting Guidelines Introduction The power resistor has extremely low thermal resistances in each axis for maximum conducted, radiated and convection heat dissipation. Using the JEDEC standard JD-51 as a guideline, coupled with your thermal design experience in power semiconductors, you can maximise the potential of this unique SOIC style power resistor. 5W PCB Example A small 40mm x 40mm, 5W, 4-layer test board configuration is illustrated to demonstrate the superior high performance of the SMP power resistor using minimum real estate. 6.14 mm 1.70 mm 3.41 mm Thermal vias SMP Test board (rear) 5.65 mm 4.70mm SMP Test board (front) 10W PCB Example Mounting details available on request. Rear landing area Solder Pad Layout Ordering Information SMP 100 J Model Tolerance 1%: F 5%: J Resistance Code 10 : 100 50 : 500 First two digits significant, last digit: number of trailing zeros 2 |
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