PL IA NT Features RoHS compliant* CO M D2PAK housing *R oH S Low inductance Resistor electrically isolated from the Applications backplate High power rating Compatible with lead free solder reflow temperatures Power supplies Motor drives Test and measurement Rectifiers PWR263S-35 Series Power Resistor General Information Bourns(R) PWR263S-35 Series is a TO263 DPAK style power resistor. Manufactured using thick film on alumina ceramic technology, it is used in current measurement, snubber, bleeder and discharge circuits. Electrical & Thermal Characteristics Material Characteristics Parameter Value(s) Resistance (See table of standard values) 0.02 to 130 K Power Rating @ 25 C Case Temperature 35 W Tolerance 1 %**, TCR 0.02 <R<130.0K 100 PPM/C Thermal Resistance - Rthj 3.7 C/W Inductance 0.1 H maximum Operating Voltage P*R with a maximum of 250 V Resistor .................................. Thick film Substrate ......................Alumina (AL203) Housing ........................................Epoxy Pins....................Tinned Copper (Sn/Cu) Flammability ........Conforms to UL-94V0 5 % Standard Resistance Values Dielectric Strength 2 KV AC Insulation Resistance 10 G Operating Temperature -55 C to 155 C ** Available for most values. Check Standard Resistance Values table. Reliability Characteristics Parameter Specification Short Term Overload (2x Pr for R < 2 , 1.6 x Pr for R 2 , V < 1.5 x Operating Voltage) R 0.25 % Load Life (1000 hours at rated power) R 1.0 % Thermal Shock (-55 C to 155 C, 5 cycles) R 0.5 % Resistance to Soldering Heat (10 seconds at 270 C) R 0.5 % Vibration (20 G 10-2000 Hz .06 " D.A.) R 0.25 % Moisture Sensitivity Level 1 Code Resistance Value Code Resistance Value R020 R050 R100 R500 R750 1R00 1R50 2R00 2R20 2R50 3R00 3R30 4R70 5R00 7R50 8R20 10R0 15R0 0.02*** 0.05*** 0.1 0.5 0.75 1 1.5 2 2.2 2.5 3 3.3 4.7 5 7.5 8.2 10 15 20R0 30R0 33R0 47R0 50R0 56R0 75R0 1000 2000 3300 4700 7500 1001 3301 1002 3002 1003 1303 20 30 33 47 50 56 75 100 200 330 470 7500 1000 3300 10000 33000 100000 130000 *** 5 % Tolerance Typical Part Marking RESISTANCE CODE Power Ratio (%) Derating Curve MANUFACTURER'S TRADEMARK 120 100 80 60 40 20 0 25 50 85 100 115 130 Temperature of Backplate (C) *RoHS Directive 2002/95/EC Jan 27, 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 145 155 263 35 XXXX X% YYY COSTA R I CA MODEL NUMBER TOLERANCE DATE CODE COUNTRY OF ORIGIN PWR263S-35 Series Power Resistor Product Dimensions Soldering Profile 10.1 (0.398) 7.8 (0.307) 275 <1> Maximum of 20 seconds between 260 C peak +245 C and +260 C <1> 245 C 225 1.6 (0.063) 48 10.4 (0.409) REF. Temperature (C) 220 C 190 C 60 - 90 seconds 175 8.8 (0.347) Ramp Down 6 C/second 150 C 125 60 - 120 seconds 10 seconds minimum 75 Ramp Up 3 C/second maximum 4.5 (0.177) 25 0 50 100 1.4 (0.055) 5.08 (0.20) 150 Time (seconds) 200 250 300 1.3 (.051) Power dissipation is 2.8 W at an ambient temperature of 25 C when mounted on a double-sided copper board using FR4 standard, 70 m of copper, 39 x 30 x 1.6 mm. 15.39 (0.606) Pulse Power Rating Energy in Joules 100 10 1.92 (0.076) 1 3.1 (0.122) 0.25 (0.010) 0.1 0.01 10 - 7 Recommended Pad Layout 11.0 (.433) 10 - 6 10 - 5 10 -4 10 -3 10 -2 10 -1 4.02 (0.158) Overload Duration in Seconds The energy absorbed by the resistor expressed in Joules can be calculated by multiplying the peak power of the pulse in watts times the length of the pulse in seconds. 10.52 (0.414) 2.25 (0.089) The energy should not exceed the limits shown in the graph. The overload voltage should not exceed 1.5 times the maximum operating voltage. 0.26 (0.10) 4.23 (0.166) 2.4 (0.095) 8.0 (.315) DIMENSIONS: TOLERANCE: Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. MM (INCHES) 0.38 UNLESS OTHERWISE NOTED (0.015) LEAD 0.102 MAX AT MOUNTING COPLANARITY: (0.004) SURFACE PWR263S-35 Series Power Resistor How to Order Packaging Specifications PWR 263 S - 35 - 10R0 F E 5.3 (0.209) Model PWR = Power Resistor 0.38 0.20 (0.015 0.008) Package 263 = D2PAK Pin Style S = Surface Mount Power 35 = 35 W 24.0 (0.945) Resistance Value <100 ohms ... "R" represents decimal point (examples: 7R50 = 7.5 ; R500 = 0.5 ) 100 ohms ... First three digits are significant, fourth digit represents number of zeros to follow (examples: 2000 = 200 ohms; 3002 = 30K ohms) 0.5 0.18 (0.020 0.007) Absolute Tolerance J=5% F=1% DIMENSIONS: Packaging E = Tape & Reel Blank = Tubes TOLERANCE: MM (INCHES) 0.38 UNLESS OTHERWISE NOTED (0.015) Asia-Pacific: Tel: +886-2 2562-4117 * Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 * Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 * Fax: +1-951 781-5700 www.bourns.com 03/11 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.