*R oH S CO M PL IA NT Features Smaller than a D2PAK package 25 Low inductance 3 5% 1 6 R00 005ICA 1 TA S CO R RoHS compliant* 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 PWR163 Series Power Resistor General Information The PWR163 Series is a DPAK style surface mount power resistor. It has a very low inductance making it ideal for high frequency applications such as amplifiers for audio or wireless base stations. It has excellent pulse characteristics as well, allowing it to be used in current limiting or capacitor discharge circuits. Electrical & Thermal Characteristics Material Characteristics Parameter Value(s) Resistance (See Popular Resistance Values table) 0.02 to 130 K Power Rating @ 25 C Case Temperature 25 W Tolerance 1 %**, TCR 0.02 Maximum of 20 seconds between 260 C peak +245 C and +260 C Model PWR = Power Resistor <1> 245 C 225 Temperature (C) 220 C 190 C Package 163 = DPAK Style 60 - 90 seconds 175 Pin Style S = Surface Mount Ramp Down 6 C/second 150 C 125 Power 25 = 25 W 60 - 120 seconds 10 seconds minimum 75 Ramp Up 3 C/second maximum 25 0 50 100 150 Time (seconds) 200 250 300 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. 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) Absolute Tolerance J=5% F=1% Packaging E = Tape & Reel Blank = Tubes Pulse Power Rating Energy in Joules 100 Typical Part Marking 10 RESISTANCE CODE 1 MANUFACTURER'S TRADEMARK 0.1 0.01 10 - 7 10 - 6 10 - 5 10 -4 10 -3 10 -2 163 25 XXXX X% YYY COS TA R I CA MODEL NUMBER TOLERANCE DATE CODE COUNTRY OF ORIGIN 10 -1 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. The energy should not exceed the limits shown in the graph. The overload voltage should not exceed 1.5 times the maximum operating voltage. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. PWR163 Series Power Resistor Product Dimensions Recommended Pad Layout 2.79 (0.110) 8.13 (0.320) 8.22 (0.324) 6.35 (.250) 0.81 (0.032) 7.11 (.280) 12.29 (0.484) REF. 7.24 (0.285) 5.08 (0.200) 8.51 (.335) 1.78 (.070) 4.03 (0.159) 0.89 (0.035) 7.87 (.031) 1.51 (0.059) 3.81 (.150) 1.76 (0.069) 1.62 (.065) 0.51 (0.020) 1.62 (.065) 5.08 (.200) Packaging Specifications 5.3 (0.209) 0.38 0.20 (0.015 0.008) DIMENSIONS: 24.0 (0.945) TOLERANCE: 0.5 0.18 (0.020 0.007) 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. 11/11 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)