METAL FILM (FLAME RETARDANT) MFP (SNF) Coat-Insulated Metal Film Fixed Resistors Construction C d L Coating colorLight blue 5 MarkingColor code : 5 color bands Marking Flame retardant coating Trimming line Ceramic core Electrode cap Lead wire Resistive film Dimensions Dimensionsmm Type L C Max. D d (Nominal) MFP1/4 6.50.5 7.1 2.30.3 0.6 MFP1/2 9.51.0 12.1 3.50.5 0.6 Weightg 3 1000pcs 250 30 430 Features RoHS Flame retardant coating. Automatic insertion is applicable. Various types of formings are available. Products with lead free termination meet RoHS requirements. Low Power Type Resistors D Reference Standards IEC 60115-1 JIS C 5201-1 Type Designation Example Old Type SNF New Type MFP Product Code 14 1/4 K 2E D Power T.C.R. Rating x10-6/K 1/4:0.25W 1/2:0.5W D : 100 Terminal Style Power T.C.R. x10-6/K Rating 14: 14: Axial lead 15: U 15: U Forming 16: M 16: M Forming K : 100 2E: 0.25W 2H: 0.5W T52 A 10k F C T52 A 1002 F Terminal Surface Material Taping & Forming Packaging Nominal Resistance Resistance Tolerance C : SnCu L : Sn/Pb See table below A : A : AMMO R: R: REEL 4 digits F : 1 APPENDIX C For further information on taping and forming, please refer to APPENDIX C on the back pages. Taping & Forming Matrix Axial Taping Type U U Forming M M Forming MFP 1/4D T26 T52 U M10 M10F M12.5 M12.5R M15 MFP 1/2D M12.5R M15R Ratings Type Power Rating Resistance Range F:1 E24E96 T.C.R. x10-6/K Max. Working Voltage MFP 1/4D MFP 1/2D 0.25W 0.5W0 10100k D : 100 158V 223V Dielectric Max. Overload Withstanding Voltage Voltage 395V 557V 500V Rated Ambient Temperature Operating Temp. Range 70 -55155 / Taping & Q ty /AMMO (pcs) T26A T52A 2,000 2,000 2,000 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. www.koanet.co.jp 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 temperature () 70 For resistors operated at an ambient temperature of 70 or above, a power rating shall be derated in accordance with the above derating curve. Performance Performance Requirements R 0.05 Test Items Test Methods Typical Resistance Within specified tolerance 25 T.C.R. Within specified T.C.R. / 100 up Room temperature100 OverloadShort time 0.5 0.3 x 2.5 5 Rated voltage x 2.5 or Max. overload vol., whichever is lower, for 5s Resistance to soldering heat 0.75 0.5 2605, 10s1s Terminal strength No lead-coming off and loose terminals Twist 360 , 5 times Rapid change of temperature 1 0.75 -55 30min. /125 30min.5 cycles Moisture resistance 5 3 402, 90%95%RH, 1000h 1.5 ON / 0.5 OFF 1.5h ON / 0.5h OFF cycle 70 Endurance at 70 3 2 702, 1000h 1.5 ON / 0.5 OFF 1.5h ON / 0.5h OFF cycle Precautions for Use RMA 20 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. Be careful to handle these resistors because outer coatings are comparatively weak to outer shock due to flameproof special coats. Please wash them to a minimum. No external force is given to the coating films until they are well dried because the coating films become weaker right after washing. The original strength will be returned after they are dried, so please pay attention not to apply any external force onto the coating film of resistors for 20 minutes after drying. Especially no PC boards shall be piled up. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. www.koanet.co.jp Low Power Type Resistors Limit