CARBON FILM CF EU RoHS Coat-Insulated Fixed Carbon Film Resistors Construction C L CFS1/4 Coating colors : CFS1/4-Ivory Others-venetian red Marking : Color code Low Power Type Resistors Features 1/4WCFS 1/4 RoHS General-purpose lead-type resistors. Automatic insertion is applicable. Various types of formings are available. Stronger in pulse resistance than chip resistors of the same power. The smaller type of 1/4W(CFS 1/4) is available. Products meet EU-RoHS requirements. d D Marking Insulation coating Trimming line Ceramic core Electrode cap Lead wire Resistive film Dimensions Dimensionsmm Type L C Max. D CFS1/4 CF1/4 CFS1/2 CFB1/2 3.20.2 6.10.5 6.30.5 9.01.0 3.4 7.1 7.1 11.0 0.2 1.7 . -0.1 2.30.3 2.850.3 3.50.5 dNominal 0.45 0.60 0.60 0.70 3 Standard Long 14min.1 20min2 20min. Weight g 1000pcs 80 160 290 520 1 S 3 1 Forming code S is applied for bulk type. 3 Lead length changes depending on taping and forming type. 2 Long 2 Long type is custom-made Type Designation Example CF 1/4 C T52 A 103 J Product Code Power Rating Terminal Surface Material Taping & Forming Packaging Nominal Resistance Resistance Tolerance S1/4 : 0.25W 1/4 : 0.25W S1/2 : 0.5W B1/2 : 0.5W C : SnCu See table below A : A : AMMO R : R : REEL 3 digits G: 2% J :5% Reference Standards IEC 60115-2 JIS C 5201-2 EIAJ RC-2136 EU-RoHS APPENDIX C Contact us when you have control request for environmental hazardous material other than the substance specified by EU-RoHS. For further information on taping and forming, please refer to APPENDIX C on the back pages. Taping & Forming Matrix Type Axial Taping Radial Taping U U Forming M M Forming T26 T52 VT MT MHT VTP VTE U UCL M5 M10 M12.5 M12.5 CFS 1/4C -- -- -- M5F -- -- -- CF 1/4C -- -- -- -- M10H M12.5H -- CFS 1/2C -- -- -- -- M10H -- -- CFB 1/2C -- -- -- -- -- -- -- -- -- -- -- M12.5K Ratings Type Power Rating CFS 1/4C 0.25W CF 1/4C 0.25W CFS 1/2C 0.5W CFB 1/2C 0.5W T.C.R.x10-6/K Resistance Range E24 G2 10330k 101M J5 350-450 0-700 0-1000 2.21M 2.247k 2.25.1M 2.2100k 110k330k 360k1M 1.05.1M 2.291k 2.25.1M 0-1300 51k100k 110k330k 360k1M / Max. Working Max. Overload Dielectric Withstanding Taping & Q'ty/AMMOpcs Voltage Voltage Voltage T26A T52A 250V 500V 300V 1.1M5.1M 300V 600V 500V 100k1M 1.1M2.2M 2.4M5.1M 350V 700V 2.2100k 110k1M 1.1M2.2M 2.4M5.1M 400V 800V 700V 5,000 2,000 3,000 2,000 -- Rated Ambient Temperature : 70 Operating Temperature Range : -55155 x Rated voltage Power RatingxResistance value or Max. working voltage, whichever is lower. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment. Malfunction or failure of the products in such applications may cause loss of human life or serious damage. Oct. 2012 www.koanet.co.jp Derating Curve Percent rated power 100 70 For resistors operated at an ambient temperature of 70 or above, a power rating shall be derated in accordance with derating curve on the left. 80 60 40 20 0 -60 -40 -20 0 20 40 60 80 100 120 140 160 -55 70 155 Ambient temperature Surface Temperature Rise 50 40 30 20 30 CFS1/2 CFS1/2 CFB1/2 CFS1/4 CF1/4 CFB1/2 CFS1/4 CF1/4 20 0 50 0 25 1 0 -1 75 25 100 50 75 100 Power Rating Ratio Rating Ratio Power Performance -2 10 CFS1/4 1 0 -1 100 -2 100k 1k1M 10k 1k 1010k100 100k 1M Resistance Resistance Performance Requirements R0.05 Test Items 2 CFS1/4 Low Power Type Resistors 0 40 10 10 0 50 R/R Load Life At 70 1000Hr 2 60 Surface temp. rise Surface temp. rise 60 R/R Limit Typical Test Methods Resistance Within specified tolerance -- 10mm1mm Measuring points are at 10mm1mm from the end cap. T.C.R. Within specified T.C.R. -- /100 up Room temperature100 OverloadShort time 1 0.5 x2.55 Rated voltagex2.5 or Max. overload vol., whichever is lower, for 5s. Resistance to soldering heat 1 0.5 2605, 10s1s Terminal strength -- No lead-coming off and loose terminals Twist 360 , 5 times Rapid change of temperature 1 0.5 -5530min. /12530min.5 cycles Moisture resistance 5 2.5 402, 90%95%RH, 1000h 1.5 ON/0.5 OFF 1.5h ON/0.5h OFF cycle 70 Endurance at 70 3 1.5 702, 1000h 1.5 ON/0.5 OFF 1.5h ON/0.5h OFF cycle Precautions for Use RMA Ionic impurities such as flux etc. that are attached to these products or those mounted onto a PCB, negatively affect their moisture resistance, corrosion resistance, etc. The flux may contain ionic substances like chlorine, acid, etc. Please wash them to get rid of these ionic substances especially when using lead-free solder that may contain much of the said substances for improving a wetting characteristic. Using RMA solder or RMA flux, or well-washing is needed. Also, attaching ionic substances such as perspiration, salt etc. by storage environments or mounting conditions/environments negatively affects their moisture resistance, corrosion resistance etc. Please wash them to remove the ionic substances when they are polluted. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment. Malfunction or failure of the products in such applications may cause loss of human life or serious damage. Oct. 2012 www.koanet.co.jp