MELF (METAL FILM) MELF MELF Type Fixed Metal Film Resistors Construction D3 RN41RM41 C D1 D2 Melf Type Resistors L RNRM Coating colorRN Blue, RM Green RN41 2A(E2496), RN41(E24), Color code RM413 3 color-bands RN41 50(E96)4 4 color-bands RN41 25(E2496)5 5 color-bands Features 0.25%T.C.R.25x10-6/K RoHS SMD metal film resistors. Free direction for mounting due to cylindrical design. High precision products (Resistance tolerance 0.25% and T.C.R.25x10-6/K) available. The electrode strength is firm. The noise characteristics is excellent. Suitable for reflow, flow and iron solderings. Products with lead free termination meet RoHS requirements. Reference Standards IEC 60115-8 JIS C 5201-8 EIAJ RC-2132A Insulation coating Trimming line Ceramic core Electrode cap Resistive film Marking Dimensionsmm L C Min. D1 2A0805 2.00.1 0.3 2B1406 3.50.2 0.5 2D1206 3.20.2 2ES1406 3.50.2 2E2H2309 5.90.2 Dimensions Type Inch Size Code Weightg D 2 Max. D 3 Max. 1.250.05 1.35 0.07 1.450.10 1.55 0.5 1.550.15 1.75 0.5 1.40.1 1.55 0.5 2.20.10 2.40 1000pcs 10 23 0.1 25 19 0.15 75 Type Designation Example Old Type RN41 New Type RN41 C 2B 2B T Power T.C.R. Terminal Product (x10-6/K) Rating Surface Material Code E :25 C :50 K :100 L :200 Old Type RM41B New Type RM41 2A:0.125W 2B:0.125W 2D:0.2W 2E:0.25W 2H:0.5W 2ES:0.25W 1k F 1001 F Packaging T 50 Nominal Resistance T.C.R. Resistance Tolerance x10-6/K T : Sn TE C,D,F:4 digits L : Sn/Pb TETaping J:3 digits BK BKBulk 2D 2D T TE T 1 J TE 1R0 J 25 50 100 200 C :0.25% D :0.5% F :1% J :5% Terminal Packaging Nominal Resistance Product Power Rating Surface Material Resistance Tolerance Code 2D:0.2W T : Sn TE 3 digits J :5% 2E:0.25W L : Sn/Pb TETaping BK BKBulk APPENDIX C For further information on taping, please refer to APPENDIX C on the back pages. Ratings Type Power Rating T.C.R. x10-6/K RN41 2A 0.125W RN41 2B 0.125W RN41 2D 0.2W RN41 2E 0.25W RN41 2ES 0.25W RN41 2H RM41 2D RM41 2H 0.5W 0.2W 0.5W 100 25 50 50 25 50 25 50 200 350 Resistance Range and Resistance Tolerance C:0.25% D:0.5% F:1% J:5% E24E96 E24E96 E24E96 E24 100100k 100100k 100604k 10604k 10604k 100100k 1001M 101M 100100k 100604k 15.11M 0.220.91 0.22100k 0.228.2 E12 Max. Working Voltage Max. Overload Voltage 200V 150V 250V 300V 500V Packaging & Q ty (pcs) Box Reel 50,000 3,000 40,000 2,000 10,000 1,500 200V 400V 40,000 3,000 250V 600V 10,000 40,000 10,000 1,500 2,000 1,500 Rated Ambient Temperature70 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. www.koanet.co.jp Derating Curve Percent rated power 100 80 60 40 20 Melf Type Resistors 0 0 -60 -40 -20 20 40 60 80 100 120 140 160 70 -55 155 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 Limit Typical Resistance Within specified tolerance 25 T.C.R. Within specified T.C.R. 25 / -55 and 25 / 125 OverloadShort time 0.5 0.3 x2.5 5 Rated voltagex2.5 for 5s Intermittent overload 1RN41 2E 2RM41 2H 410,0002A3 Rated voltagex4 (2Ax3) or Max. Intermittent overload voltage, whichever is lower, 10,000 cycles. 2A:200V, 2B2D:300V, 2E:500V, 2H:600V Max. Intermittent overload voltage 2A:200V, 2B2D:300V, 2E:500V, 2H:600V Resistance to soldering heat 0.5 0.3 2605, 10s1s 0.5RN41 2A2E 1RN41 2H 0.3RN41 2A2E 0.7RN41 2H -55 30min. /125 30min.5 cycles 1RM41 0.75RM41 1RN41 2B2E 3RN41 2A 5RN41 2H 0.75RN41 2B2E 1.5RN41 2A 3RN41 2H Rapid change of temperature Moisture resistance 70 Endurance at 70 High temperature exposure 3RM41 1.5RM41 0.5RN41 2B2E 3RN41 2A 5RN41 2H 0.3RN41 2B2E 1.5RN41 2A 3RN41 2H 5RM41 3RM41 1RN41 0.75RN41 402, 90%95%RH, 1000h 1.5 ON / 0.5 OFF 1.5h ON / 0.5h OFF cycle 702, 1000h 1.5 ON / 0.5 OFF 1.5h ON / 0.5h OFF cycle 125, 100h RN41 2ES Specified values for RN41 2ES are different from the above, so consult with us about the detail. 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. www.koanet.co.jp