TA-I Document No. TRMH-250S001A High Power Chip Resistors Issued date (RMH25 series standard ) 2011/06/03 page 1/9 1. Scope : This specification applies for the RMH25 series of thick film chip resistors made by TA-I. Conductor : 2. Construction: Over Coat (Color : Black) (Lead-free or with lead ) Sn Plating Resistive Element Ni Plating Ceramic Substrate 3. Type Designation: RMH 25 J E 101 Product Code Size Tolerance Packaging Nominal RMH : High Power Power Rating Resistance Chip Resistor J - 5% 25-2512(6432) 2W F - 1% E-Emboss Tape 3 digits, e.g.,: (E-24) 101 = 100 4 digits, e.g.,: (E-96) 43R2 = 43.2 TA-I TECHNOLOGY CO., LTD High Power Chip Resistors TA-I Document No. TRMH-250S001A Issued date (RMH25 series standard ) 2011/06/03 page 2/9 4. Dimensions: 101 UNIT: mm Type L W C d t RMH25 6.300.20 3.200.20 0.600.30 0.500.25 0.600.10 5. Ratings & Characteristics : Type Power Rating at 70 Rated Voltage Max. Working Voltage Max. OverLoad Voltage Resistance Range() T.C.R (PPM/) 100 RMH25 2W Refer 5.2 200V 400V F(1%) E-96 10-100 200 400 J(5%) E-24 10-100 1-9.1 1-9.1 2. Operating Temp(): : -55 +125 Note : Except for the above standardized products, we also provide the customized products. TA-I TECHNOLOGY CO., LTD TA-I High Power Chip Resistors Document No. TRMH-250S001A Issued date (RMH25 series standard ) page 2011/06/03 3/9 5.1Derating Curve : For resistors operated at ambient temperature over 70 , power rating shall be derated in accordance with figure 1. P max. 100 Power ratio ( % ) 50 0 -55 50 70 100 125 Ambient Temp. ( C ) Figure 1 5.2 Rated Voltage: The rated voltage is calculated by the following formula: E= P*R E=Rated Voltage(V) P=Rated Power(W) R=Resistance Value() E.G. : What is RMH25JE101 the rated voltage ? RMH25JE101 E= P:2.0W ; R:101 = 100 2.0(W) * 100() = 14.14 (V) TA-I TECHNOLOGY CO., LTD TA-I High Power Chip Resistors Document No. TRMH-250S001A Issued date (RMH25 series standard ) 2011/06/03 page 4/9 6. Reliability Tests: Test Items Reference standard Condition of Test Test Limits R Temperature Coefficient of Resistance IEC60115-1-4.8 JIS-C5201-4.8 Short Time Overload IEC60115-1-4.13 2.5 X rated voltage JIS-C5201-4.13 Intermittent Overload 3.0 X rated voltage or Max Overloading (5.0% + 0.1) EC60115-1-4.39 voltage ,1sec "ON" , 25sec "OFF" , 10000 cycles JIS-C5201-4.39 (Remarks : 0201-NA , 0402 2.5 X RCWV * ) Load Life -55 +125 Refer 5.0 (1% + 0.05 ) for 5 sec IEC60115-1-4.25.1 1000 hours at rated voltage, 70 , 1.5hours JIS-C5201-4.25.1 "ON ", 0.5hour "OFF" Load Life with Humidity IEC60115-1-4.24 1000 hours at rated voltage , 402, JIS-C5201-4.24 90~95% RH 1.5hours "ON ", 0.5hour "OFF" Rapid Change of Temperature IEC60115-1-4.19 -55 (30 min. ) / +155 (30 min. ) 5 cycles JIS-C5201-4.19 IEC60115-1-4.17 2455 solder, 20.5 sec dwell. JIS-C5201-4.17 Solder : Sn96.5 / Ag3.0 / Cu0.5 Robustness of Termination (Bending) IEC60115-1-4.33 2mm deflection JIS-C5201-4.33 Dielectric Withstanding Voltage (Voltage Proof) IEC60115-1-4.7 JIS-C5201-4.7 Applying voltage : 0201 : 50V , 0402 & 0603 : 300V 500V for a minute . Insulation Resistance IEC60115-1-4.6 JIS-C5201-4.6 Applying voltage 100V for 1 minute. Remark : 0201 50V Resistance to Solder Heat 1%:(1.0%+0.05) 5%:(3.0%+0.1) 1%:(0.5%+0.05) 5%:(1.0%+0.05) At least 95% of surface area of electrode shall be covered with new solder. Solderability Resistance to Dry Heat 1%:(1.0%+0.05) 5%:(3.0%+0.1) 1%:(0.5%+0.05) 5%:(1.0%+0.05) The other No abnormalities such as flashover, burning dielectric breakdown shall appear. 1G 1%:(1.0%+0.05) 5%:(2.0%+0.1) IEC60115-1-4.23.2 1255 for 964Hrs JIS-C5201-4.23.2 IEC60115-1-4.18 270 5 solder , 10 1 sec dwell . JIS-C5201-4.18 1%:(0.5%+0.05) 5%:(1.0%+0.05) Note* : RCWV : Rated continuous working voltage . TA-I TECHNOLOGY CO., LTD High Power Chip Resistors TA-I Document No. TRMH-250S001A Issued date (RMH25 series standard ) 2011/06/03 page 5/9 7. Marking : 7.1 5%(E24) Resistance value is expressed by 3 digits, the first two digits represent the significant figures of nominal resistance value in, and the third digit represents exponent for base of 10. E.G. :, 7.2 470 0 = 47x10 = 47 1% (E96 ) Resistance value is expressed by 4 digits or 3digits , the first three digits represent the significant figures of nominal resistance value in, and the fourth digit represents exponent for base of 10. E.G. : 0 1000 = 100x10 = 100 8. Taping & Reel : 8.1 Taping Dimensions 8.1.1 4 mm pitch Emboss : Packing Paper Type A RMH25 3.60.2 B W F E P1 P2 P0 D0 T +0.1 6.90.2 12.00.2 5.50.05 1.750.1 4.00.1 2.00.05 4.00.05 1.5 0.850.15 -0 Package Type RMH Emboss Plastic Tape 4 mm pitch Size 25 4000 TA-I TECHNOLOGY CO., LTD TA-I 8.2 High Power Chip Resistors Document No. TRMH-250S001A Issued date (RMH25 series standard ) 2011/06/03 page 6/9 Reel Specifications: UNIT: mm Type RMH25 A 178.0 2.0 B 60.0 1.0 C 13.0 1.0 W 13.0 1.0 T 15.5 1.0 8.4. Peel -off force : Peel -off force of paper and blister tape is in accordance with "JIS-C5202 " that is , 0.1 to 0.7 N at a peel-off speed of 300 mm / minute. pull 300 mm/min top cover tape 1015 standard: 0.1 ~ 0.7 N carrier tape TA-I TECHNOLOGY CO., LTD TA-I Document No. TRMH-250S001A High Power Chip Resistors Issued date (RMH25 series standard ) 2011/06/03 page 7/9 9. Label : 9.1 Manufacture Label : Date Code QTY: Resistance Tolerance Type 4000 PCS 102 Lot No: 00890166K- 0008 J RMH25 9.2 Customer Label( By customer request ): Lead-Free Products TA-I TECH Product Spec. Customer No: LEAD FREE 2512 5%(E) 1K 105A702723 RMH25JE102 04.05.21 Date Year Month 10. Recommended land patterns : Land pattern Type RMH Size 25 (2512 ) a 3.6~4.0 Dimension b ( mm ) 7.6~8.6 c 2.3~3.5 TA-I TECHNOLOGY CO., LTD TA-I High Power Chip Resistors (RMH25 series standard ) Document No. TRMH-250S001A Issued date page 2011/06/03 8/9 11. Recommend IR - Reflow profile : (solder : Sn96.5 / Ag3 / Cu0.5) Peak : 250 5 , 5 sec 0 Pre - heat Zone : 150 to 180 , 9030 sec Soldering Zone : 230 or higher , 3010 sec 12. Storage Conditions: Temperature : 5 to 35 Related Humidity :40 to 75% RH 13. Shelf Life: 2 years from manufacturing date. 14. ECN : Engineering Change Notice: The customer will be informed with ECN if there is significant modification on the characteristics and materials described in Approval Sheet. TA-I TECHNOLOGY CO., LTD TA-I 15. High Power Chip Resistors Document No. TRMH-250S001A Issued date (RMH25 series standard ) page 2011/06/03 9/9 Manufacturing Country & City : TA-I TECHNOLOGY CO., LTD. ( Taiwan- Tao Yuan ) Tel: 886-3-3246169 Fax : 886-3-3246167 Associated companies : (1) FORTUNE TASK RESISTOR FACTORY ( China - Dongguan ) Tel : 86-769-8339-47903 Fax : 86-769-8339-4794 (2) TA-I TECHNOLOGY (DONGGUAN ) CO., LTD. ( China -Dongguan ) Tel : 86-769-8339-47903 Fax : 86-769-8339-4794 (3) TA-I TECHNOLOGY ( SU ZHOU ) CO., LTD. ( China - Su Zhou) Tel :86- 512-63457879 Fax : 86-512-63457869 (4) TAI OHM ELECTRONICS ( M ) SDN. BHD. 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