PL IA NT Features CO M *R oH S Applications Resistance value as low as 0.001 ohm Power rating of 2 watts at 70 C Lead free RoHS compliant* Power supplies Stepper motor drives CRF2512 - High Power Current Sense Chip Resistor Electrical Characteristics Characteristic Data Power Rating @ 70 C 0.001 to 0.010 ohms 0.015 to 0.040 ohms 2W 1W Operating Temperature Range -55 C to +170 C Derated to Zero Load at +170 C Maximum Working Voltage (P x R) Insulation Resistance R Max. Load Life (1000 hours) < 1 % Short Time Overload < 0.5 % Thermal Shock < 0.5 % 1/2 > 100 megohms Resistance Range Test Product Dimensions 0.001 - 0.040 ohms Resistance Tolerance 1 %, 5 % Temperature Coefficient 0.001 to 0.002 ohms 0.003 to 0.010 ohms 0.015 to 0.040 ohms 275 PPM/C 100 PPM/C 75 PPM/C 6.40 0.20 (0.252 0.008) 3.20 0.20 (0.126 0.008) 0.90 0.20 (0.035 0.008) Recommended Solder Pad Layout L 0.60 0.20 (0.024 0.008) B 0.90 0.20 (0.035 0.008) A DIMENSIONS: Cu TRACE MM (INCHES) SENSING TRACE Construction Resistance Range (Ohms) A B L 0.001-0.002 4.0 (0.157) 3.1 (0.122) 1.3 (0.051) 0.003-0.040 4.0 (0.157) 2.1 (0.083) 4.1 (0.161) Overcoat Ni / Sn Plating Metal Alloy Plate Soldering Profile Derating Curve Peak 260 +5/-0 C 230 C or higher 200 180 C 150 Power Ratio (%) Temperature (C) 250 Pre-heating Zone 150 C 90 30 seconds 100 -55 30 10 seconds Soldering Zone 50 100 70 170 Ambient Temperature (C) Heating Time *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. CRF2512 - 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 CRF 2512 - F X - R003 E LF Code R Value R001 0.001 R002 0.002 Size 2512 = 2512 Size R003 0.003 R005 0.005 Resistance Tolerance * F = 1 % * J = 5 % R007 0.007 R010 0.010 R015 0.015 Resistance Value "R" (decimal point) followed by three significant digits (example: R025 = 0.025 ohm) R020 0.020 Packaging * E = 4,000 pieces on 180 mm (7 inch) reel R025 0.025 R030 0.030 R035 0.035 R040 0.040 Model (CRF = Precision Chip Resistor TCR (PPM/C) * Z = 75 PPM/C, 0.015 ohm or greater * X = 100 PPM/C, 0.003 ohm through 0.010 ohm * V = 275 PPM/C, 0.001 ohm through 0.002 ohm Termination * LF = Tin-plated (lead free) 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 04/07 COPYRIGHT(c)2006, BOURNS, INC. LITHO IN U.S.A. e 03/07 N0606 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.