This series is currently available but Features not recommended for new designs. n RoHS compliant* Recommended replacement products are available. The replacement n Small package dimensions devices are functionally equivalent, but are n Power rating at 70 C = 1/16 W not in identical packages. See CR0402A-AS n Three layer termination process with nickel Series. barrier helps prevent leaching and provides excellent solderability CR0402-AS Series - Sulfur-Resistant Thick Film Chip Resistors General Characteristics How To Order CR 0402 - F X - 1002 G AS Characteristic CR0402-AS Chip Resistor Power Rating 70 C per Resistor 0.063 W Size 0402 Resistor Tolerance 1 %, 5 % Tolerance Resistance Range - 1 % Tolerance (E24 + E96) 10 ohms to 1 megohm F = 1 % J = 5 % Resistance Range - 5 % Tolerance (E24), 1 ohm to 10 megohms, TCR (ppm/C) Zero-ohm Jumper 0 ohms X = 100 Temperature Coefficient of Resistance (TCR) W = 200 1 % Tolerance 100 ppm/C / = N/A (for Jumper) 5 % Tolerance 200 ppm/C** Resistance Code For 1 % Tolerance Zero-ohm Jumper N/A <100 ohms: Maximum Overload Voltage 50 V R designates decimal point (example: 24R3 = 24.3 ohms) Maximum Working Voltage 100 V 100 ohms: Operating Temperature Range -55 to +155 C First three digits are significant, fourth digit represents number of Storage Conditions +5 ~ +40 C, 25~75 % RH, 1 year zeros to follow Derating Temperature +70 C (example: 8252 = 82.5K ohms) Packaging (Paper Tape) 10,000 pcs. per reel For 5 % Tolerance <10 ohms: Zero-ohm Jumper: R designates decimal point Current Rating 1 A per element (example: 4R7 = 4.7 ohms) Maximum Resistance 50 milliohms 10 ohms: First two digits are significant, **TCR for 1 ohm to 9.1 ohm resistance range, 5 % tolerance is 300 ppm/C. third digit represents number of zeros to follow (example: 474 = 470K ohms Environmental Characteristics 000 = Zero-ohm jumper) Packaging G = Paper Tape Specification Test Method (JIS C 5201-1) Characteristics (10,000 pcs. on 7-inch plastic reel) Special Characteristics Short Time Rated voltage x 2.5, 5 seconds (2 % +0.1 ohm) AS = Sulfur-resistant, Tin-plated terminations Overload (RoHS compliant) Soldering Heat +260 C 5 C, 10 1 seconds (1 % +0.05 ohm) Temperature -55 C (30 minutes) - normal (2~3 minutes) For Standard Values Used in Capacitors, (1 % +0.05 ohm) Cycling +125 C (30 minutes) - normal (2~3 minutes), 5 cycles Inductors, and Resistors, click here. Moisture Load +40 C, 90~95 % RH, 1000 hours, (3 % +0.1 ohm) Life 1.5 hours ON, 0.5 hours OFF Construction +70 C, 1000 hours, Load Life (3 % +0.1 ohm) Resistor (Ru02) Overcoat 1.5 hours ON, 0.5 hours OFF (Jumper chip is a conductor) Sulfur Test 3 ppm H2S, +50 C, 90~95 % RH, 100 hours (5 % +0.1 ohm) NOTE: Zero-ohm jumper 100 milliohms. Soldering Profile 275 <1> Maximum of 20 seconds between 260 C peak +255 C and +260 C <1> 255 C Alumina Substrate Internal Electrode 225 220 C Secondary Electrode (Nickel Plated) 190 C 60 - 90 External Electrode (Sn) seconds 175 150 C Ramp Down 6 C/second WARNING Cancer and Reproductive Harm 125 60 - 120 seconds www.P65Warnings.ca.gov 10 seconds minimum *RoHS Directive 2015/863, Mar 31, 2015 and Annex. Specifications are subject to change without notice. 75 Users should verify actual device performance in their Ramp Up 3 C/second maximum specific applications. The products described herein and this document are 25 subject to specific legal disclaimers as set forth on the 050 100 150 200 250 300 last page of this document, and at www.bourns.com/ Time (Seconds) docs/legal/disclaimer.pdf. Temperature (C)Features (Continued) n Suitable for most types of soldering processes n Standard packaging on paper tape and reel n Sulfur-resistant design CR0402-AS Series - Sulfur-Resistant Thick Film Chip Resistors Derating Curve Typical Part Marking (See Product Dimensions) 100 1 % & 5 % Tolerance ............. Yellow dot Zero-ohm Jumper .............................000 80 60 40 20 0 -55 0 155 70 (C) Ambient temperature Product Dimensions L Recommended Land Pattern 0.6 Dim. CR0402-AS L C (0.024) W 1.00 0.05 L 0.6 (0.039 0.002) C (0.024) W 0.50 0.05 W (0.020 0.002) T 0.7 (0.028) 2.0 0.20 0.10 C (0.079) (0.008 0.004) D T 0.7 (0.028) 2.0 0.25 0.10 D (0.079) (0.010 0.004) D 0.35 0.05 T (0.014 0.002) MM DIMENSIONS: (INCHES) Packaging Specifications 4.00 0.10 DIA. (.157 .004) 1.50 +0.10/-0 1.75 0.10 2.00 0.05 (.059 +.004/-0) (.069 .004) (.079 .002) Reel 180 Diameter: 3.50 0.05 (7.087) (.138 .002) 8.00 0.30 (.315 .012) 1.20 0.08 2.00 0.05 2.75 0.10 (.047 .003) (.079 .002) (.108 .004) 4.00 0.10 0.70 0.08 0.50 0.10 MM (.028 .003) (.020 .004) (.157 .004) DIMENSIONS: (INCHES) Asia-Pacific: Tel: +886-2 2562-4117 Email: asiacus bourns.com EMEA: Tel: +36 88 885 877 Email: eurocus bourns.com The Americas: Tel: +1-951 781-5500 Email: americus bourns.com www.bourns.com REV. 06/20 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Rated power in percentage (%)