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Document overview
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Technical content
Features
n High reliability and stability n RoHS compliant* and halogen free**
Applications
CFN Series Metal Foil, Current Sense Resistor
Electrical Characteristics
Characteristic CFN0805 CFN1206 Power Rating @ 70 °C 0.5 W 1 W Resistance Value 5 mΩ, 10 mΩ, 20 mΩ Operation Temperature Range -55 ℃ ~ +155 ℃ Temperature Coefficient of Resistance ±100 ppm/°C Tolerance ±1 %, ±5 % *RoHS COMPLIANT LEAD FREE RoHS COMPLIANT* HALOGEN FREE** LEAD FREE VERSIONS ARE RoHS COMPLIANT* Reliability Tests Test Items Condition of Test ∆R Maximum Load Life 1000 hours at rated power, 70 ℃, 1.5 hours “ON”, 0.5 hour “OFF” < ±1 % Short Time Overload 5 X rated power for 5 s < ±1 % Moisture no Load 85 ℃, 85 %RH, 1000 hrs < ±1 % Temperature Cycle -55 ℃ & +155 ℃, 100 cycle, 15 min per extreme condition < ±1 % Resistance to Soldering Heat 260 ±5 ℃ for 10 ±1 sec < ±0.5 % Solderability 245 ±5 ℃, 2 ±0.5 sec At least 95 % of surface area of electrode shall be covered with new solder High Temperature Exposure 155 ℃, 1000 hrs < ±1 % Low Temperature Storage -55 ℃, 1000 hrs < ±1 % Substrate Bending Bending width 2 mm < ±0.5 % Insulation Resistance 100 V DC for 1 minute >100 MΩ Derating Curve 100Power Ratio (%) -55 70 155 Ambient Temperature (°C) * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. ** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. 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. WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov Environmental Characteristics Storage Conditions (Solder: Sn96.5 / Ag3 / Cu0.5)
CFN Series Metal Foil, Current Sensing Chip Resistor Construction Ni / Sn PLATING METAL ALLOY PLATE OVER- COATING Code Resistance Value (milliohms R005 5 R010 10 R020 20 Popular Resistance Values* Marking 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. *Please consult factory for other resistance values W L D t CFN0805 2.00 ± 0.20 (.079 ± .008) 1.25 ± 0.20 (.049 ± .008) 0.40 ± 0.20 (.016 ± .008) 0.70 ± 0.20 (.028 ± .008) CFN1206 3.20 ± 0.20 (.126 ± .008) 1.60 ± 0.20 (.063 ±. 008) 0.50 ± 0.20 (.020 ± .008) 0.70 ± 0.20 (.028 ± .008) L C C T W DIMENSIONS: MM (INCHES) Product Dimensions A L B CFN0805 6 ≤ R < 10 1.40 (.055) 3.20 (.126) 0.80 (.031) 10 ≤ R ≤ 30 1.20 (.047) CFN1206 6 ≤ R < 10 1.80 (.071) 4.70 (.185) 1.20 (.047) 10 ≤ R < 20 1.80 (.071) 20 ≤ R ≤ 40 2.20 (.087) Recommended Solder Pad Dimensions L Cu Trace B A Sensing Trace DIMENSIONS: MM (INCHES) RESISTANCE CODE: 005 = 5 m/uni03A9 010 = 10 m/uni03A9 020 = 20 m/uni03A9
CFN 0805 - F X - R005 E LF Model CFN = Metal Foil Current Sense Resistor Size 0805 = 0805 Size 1206 = 1206 Size Resistance Tolerance F = ±1 % J = ±5 % TCR X = ±100 PPM/°C Resistance Code – (See Popular Resistance Table) “R” (decimal point) followed by three significant digits (example: R005 = 0.005 ohms) Packaging E = Tape and Reel 4,000 pcs. / 7-inch reel, paper tape Termination LF = Tin-plated (RoHS Compliant) How to Order CFN Series Metal Foil, Current Sensing Chip Resistor Solder Reflow Recommendations TP TP tp ts T TORAMP-UP L TL t L T MAX.S T MIN. 25 °C PREHEAT S Temperature Time CRITICAL ZONE RAMP-DOWN 8 MINUTES MAX.t 25 *C TO PEAK Solder Profile Lead Free Assembly Average ramp-up rate (Tsmax to Tp) 3 °C / second max. Preheat: - Temperature Min. (Tsmin) - Temperature Max. (Tsmax) - Time (Tsmin to Tsmax) (ts) 150 °C 200 °C 60~150 seconds Time maintained above: - Temperature (TL) - Time (TL) 217 °C 60~120 seconds Peak Temperature (Tp) 260 °C Time within +0/-5 °C of actual Peak Temperature (Tp)2 10 seconds Ramp-down rate 6 °C / second max. Time 25 °C to Peak Temperature 8 minutes max. 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.
3312 - 2 mm SMD Trimming Potentiometer CFN Series Metal Foil, Current Sensing Chip Resistor Packaging Dimensions (Conforms to EIA RS-481A) DIRECTION OF UNREELING 2.00 ± 0.15 (.079 ± .006) 1.05 ± 0.10 (.041 ± .004) Top Tape Bottom Tape 4.00 ± 0.10 (.157 ± .004) 2.00 ± 0.10 (.079 ± .004) 3.60 ± 0.20 (.315 ± .008) 3.50 ± 0.05 (.138 ± .002) 1.75 ± 0.10 (.069 ± .004) 1.55 ± 0.10 (.061 ± .004) 4.00 ± 0.10 (.157 ± .004) DIA. Resistor Paper Tape 9.0 ± 1.0 (.354 ± .039) 60.0 ± 1.0 (2.362 ± .039)DIA. DIA. DIA. 11.5 ± 1.0 (.453 ± .039) 178 ± 2.0 (7.008 ± .079) 13.0 ± 1.0 (.512 ± .039) 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. DIMENSIONS: MM (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
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