CARBON FILM CF EU RoHS Coat-Insulated Fixed Carbon Film Resistors Construction C d T CFS1/4 Coating colorCFS1/4-Ivory Others-venetian red Marking : Color code z z z z 1/4WCFS 1/4 z RoHS z General-purpose lead-type resistors. z Automatic insertion is applicable. z Various types of formings are available. Electrode cap Lead wire Resistive film Dimensions mm Weight (g) (1000pcs) 3 L C Max. D d (Nominal) CFS1/4 3.20.2 3.4 1.7 +0.2 -0.1 0.45 CF1/4 CFS1/2 CFB1/2 6.10.5 6.30.5 9.01.0 7.1 7.1 11.0 2.30.3 2.850.3 3.50.5 0.6 0.6 0.7 Standard Long 1 20 min. 14 min. 20 min. 2 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 z Stronger in pulse resistance than chip resistors of the same power. z The smaller type of 1/4W(CFS 1/4) is available. z Products meet EU-RoHS requirements. 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 B1/2 : 0.5W S1/2 : 0.5W C : SnCu See table below A : AMMO A : AMMO R: R : REEL : Nil : BOX 3 digits G : 2% J : 5% Reference Standards D Dimensions Type z Low Power Type Resistors Marking Insulation coating Trimming line Ceramic core Features T L IEC 60115-2 JIS C 5201-2 EIAJ RC-2136 EU-RoHS 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, please refer to APPENDIX C on the back pages. Taping & Forming Matrix Straight Nil S 1 2 1 2 - - Type CFS 1/4 CF 1/4 CFS 1/2 CFB 1/2 Type CFS 1/4 CF 1/4 CFS 1/2 CFB 1/2 Axial Taping T26 T52 - VT - MT - - - Radial Taping MHT - - - VTP - - VTE - - U U Forming U UCL - - - - - M5 M5F - - - M M Forming M10 M12.5 - - M10H M12.5H M10H - - - M12.5 - - - M12.5K Ratings Power Resistance RangeE24 Rating G: 2% J:5% 0.25W 10330k 2.21M 0.25W 2.25.1M 101M 1.05.1M 0.5W 0.5W 2.25.1M 350450 2.247k 2.2100k 1.091k 2.2100k T.C.R.x10-6/K 0700 01000 51k100k 110k330k 110k330k 360k1M 100k1M 1.1M2.2M 110k1M 1.1M2.2M 01300 360k1M 1.1M5.1M 2.4M5.1M 2.4M5.1M /AMMO Taping & Q'ty/AMMO (pcs) Dielectric Max. Working Max. Overload Voltage Voltage Withstanding Voltage T26A T52A 250V 500V 300V 5,000 3,000 300V 600V 500V 2,000 2,000 350V 700V 700V 400V 800V - Rated Ambient Temperature +70 Operating Temperature Range-55+155 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. Nov. 2018 www.koaglobal.com Derating Curve 70 For resistors operated at an ambient temperature of 70C or above, a power rating shall be derated in accordance with the left derating curve. Percent rated power 100 80 60 40 20 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 70 155 Ambient temperatureC Surface Temperature Rise +2 50 CFS1/2 40 R/R Surface temp. rise 60 CFB1/2 CFS1/4 CF1/4 30 0 -1 10 25 50 75 -2 10 100 Power Rating Ratio 100 1k 10k 100k 1M Low Power Type Resistors 0 CFS1/4 +1 20 0 Load Life At 701000Hr Resistance Performance Performance Requirements R0.05 Limit Within specified tolerance Within specified T.C.R. Test Items Resistance T.C.R. Typical Test Methods - 10mm1mm Measuring points are at 10mm1mm from the end cap. - 25/125 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 1 0.5 Rapid change of temperature Moisture resistance 70 Endurance at 70 5 2.5 3 1.5 5530min./12530min.5 cycles 402, 90%95%RH, 1000h 1.5ON0.5OFF 1.5h ON/0.5h OFF cycle 702, 1000h 1.5ON0.5OFF 1.5h ON/0.5h OFF cycle Precautions for Use z ** RMA ** z 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 leadfree 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. Nov. 2018 www.koaglobal.com