Ro VE LEA HS RS D CO I O N F R E M SA E PL R IA E NT * Features ■ RoHS compliant* ■ D2PAK housing ■ 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 PWR263 Series Power Resistor General Information Bourns® PWR263 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) 0.5 Ω to 130 KΩ Power Rating @ 25 ˚C Case Temperature 20 W Tolerance ±1 %, ±5 % Resistor .................................. Thick film Substrate ......................Alumina (AL203) Housing ........................................Epoxy Pins....................Tinned Copper (Sn/Cu) Flammability ........Conforms to UL-94V0 Standard Resistance Values TCR 0.5 Ω<R<130.0K Ω ±100 PPM/˚C Thermal Resistance - Rthj 6.5 ˚C/W Code Inductance 0.1 µH maximum Operating Voltage Dielectric Strength Resistance Value Code Resistance Value R500 0.5 47R0 47 √P*R with a maximum of 250 V R750 0.75 56R0 56 2 KV AC 1R00 1 75R0 75 Insulation Resistance 10 GΩ 1R50 1.5 1000 100 Operating Temperature -55 ˚C to 155 ˚C 2R00 2 2000 200 2R50 2.5 3300 330 3R00 3 4700 470 3R30 3.3 7500 750 4R70 4.7 1001 1000 7R50 7.5 3301 3300 Reliability Characteristics Parameter Specification Short Term Overload (2x Pr for R < 2 Ω, 1.6 x Pr for R ≥ 2 Ω, V < 1.5 x Operating Voltage) ΔR ±0.25 % Load Life (1000 hours at rated power) ΔR ±1.0 % 10R0 10 1002 10000 15 3002 30000 Thermal Shock (-55 ˚C to 155 ˚C, 5 cycles) ΔR ±0.5 % 15R0 Resistance to Soldering Heat (10 seconds at 270 ˚C) ΔR ±0.5 % 20R0 20 1003 100000 Vibration (20 G 10-2000 Hz .06 ” D.A.) ΔR ±0.25 % 30R0 30 1303 130000 Moisture Sensitivity Level 1 33R0 33 Typical Part Marking Power Ratio (%) Derating Curve 120 100 80 60 40 20 0 25 RESISTANCE CODE MANUFACTURER'S TRADEMARK 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 20 XXXX X% YYY C O S TA R I C A MODEL NUMBER TOLERANCE DATE CODE COUNTRY OF ORIGIN PWR263 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 µm 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 PWR263 Series Power Resistor How to Order Packaging Specifications PWR 263 S - 20 - 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 20 = 20 W 24.0 (0.945) Resistance Value <100 ohms ... “R” represents decimal point (examples: 7R50 = 7.5 Ω; R500 = 0.5 Ω) ≥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: ±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 REV. 06/11/09 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications MM (INCHES)