PL IA NT Features CO M ■ *R oH S ■ ■ Applications Special alloy resistor Power rating at 70 °C: CRA2010 - 1.5 W, CRA2512 - 3 W RoHS compliant* Power supplies Stepper motor drives ■ ■ CRA2010/CRA2512 - High Power Current Sense Chip Resistor Electrical Characteristics Characteristic Data Characteristic Power Rating @ 70 °C CRA2010 CRA2512 1.5 W 3W Operating Temperature Range -55 °C to +170 °C Derated to Zero Load at +170 °C Maximum Working Voltage (P x R)1/2 Insulation Resistance > 100 megohms Resistance Range Test ∆R Max. Load Life (1000 hours) < ±1 % Short Time Overload < ±0.5 % Thermal Shock < ±0.5 % Recommended Solder Pad Layout L 0.01 - 0.100 ohms Resistance Tolerance ±1 %, ±5 % Temperature Coefficient ±75 PPM/°C B A Product Dimensions Cu TRACE SENSING TRACE A C Model A B L CRA2010 3.1 (0.122) 2.7 (0.106) 3.1 (0.122) CRA2512 4.0 (0.157) 2.1 (0.083) 4.1 (0.161) B C C C C DIMENSIONS: Model A B C CRA2010 5.0 ± 0.20 (0.1962 ± 0.008) 2.5 ± 0.20 (0.0984 ± 0.008) 0.6 ± 0.20 (0.0236 ± 0.008) CRA2512 6.40 ± 0.20 (0.252 ± 0.008) 3.20 ± 0.20 (0.126 ± 0.008) 0.90 ± 0.20 (0.035 ± 0.008) MM (INCHES) Construction Overcoat Ni / Sn Plating Soldering Profile Metal Alloy Plate Peak 260 +5/-0 °C 230 °C or higher 200 180 °C 150 Derating Curve Pre-heating Zone 150 °C 90 ± 30 seconds 100 30 ± 10 seconds Soldering Zone 50 Heating Time Power Ratio (%) Temperature (°C) 250 100 -55 70 170 Ambient Temperature (°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. CRA2010/CRA2512 - High Power Current Sense Chip Resistor Packaging Dimensions (Conforms to EIA RS-481A) EMBOSSED TAPE 1.5 (0.059) DIA. MIN. 1.5 +0.1/-0 DIA. (0.059 +0.004/-0) TOP TAPE 1.75 ± 0.1 (0.069 ± 0.004) 5.5 ± 0.05 (0.217 ± 0.002) 13.0 ± 1.0 (0.512 ± 0.039) DIA. 180 +0/-3 (7.09 +0/-0.118) DIA. 12.0 ± 0.2 (0.472 ± 0.008) RESISTOR 3.60 ± 0.20 (0.142 ± 0.008) 0.85 ± 0.15 (0.033 ± 0.006) 4.0 ± 0.1 (0.157 ± 0.004) 2.0 ± 0.05 (0.079 ± 0.002) 60.0 (2.362) MIN. DIA. 6.9 ± 0.2 (0.272 ± 0.008) 4.0 ± 0.05 (0.157 ± 0.002) USER DIRECTION OF FEED 15.4 ± 2.0 (0.606 ± 0.079) 13.0 ± 1.0 (0.512 ± 0.039) How To Order Resistance Value Table CRA 2512 - G Z - R017 E LF Code R Value Code R Value R010 0.010 R060 0.060 R017 0.017 R065 0.065 R020 0.020 R070 0.070 R025 0.025 R075 0.075 R030 0.030 R080 0.080 R034 0.034 R085 0.085 R040 0.040 R090 0.090 Resistance Value “R” (decimal point) followed by three significant digits (example: R025 = 0.025 ohm) R045 0.045 R095 0.095 Packaging • E = 4000 pieces on 180 mm (7 inch) reel R050 0.050 R100 0.100 Termination • LF = Tin-plated (RoHS compliant) R055 0.055 Model (CRA = Precision Chip Resistor Size 2010 = 2010 Size 2512 = 2512 Size Resistance Tolerance • F = ±1 % • J = ±5 % TCR (PPM/°C) • Z = ±75 PPM/°C Reliable Electronic Solutions Asia-Pacific: TEL +886-2 25624117 • FAX +886-2 25624116 Europe: TEL +41-41 7685555 • FAX +41-41 7685510 The Americas: TEL +1-951 781-5500 • FAX +1-951 781-5700 www.bourns.com 05/07 COPYRIGHT©2007, BOURNS, INC. LITHO IN U.S.A. e 04/07 SR0707 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.