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METAL FILM RESISTOR NORMAL & MINIATURE STYLE RMF & RMFS SERIES
Metal Film Resistor – Normal & Miniature Style Features
• • • • • Low cost Non-inductive design, wide resistance range (0.27Ω to 1MΩ) Standard tolerance: ±1% (±0.5%, ±0.25% and ±0.1% available) Varied temperatures coefficient: ±15ppm/° C, ±25ppm/° C, ±50ppm/° C, ±100ppm/° C RoHs compliant
Mechanical Data
• Full MIL-R-10509 performance • Bulk and 52mm tape and reel standard; ammo pack, cut and formed, and radial Panasert/Avisert available upon request
Dimensions (in mm)
Type RMF08C RMF25C RMF50C RMF 1W RMF 2W RMFS25C RMFS50C RMFS1W RMFS2W --
L 3.4±0.3 6.3±0.5 9.0±0.5 11.5±1.0 15.5±1.0
D 1.9±0.2 2.4±0.2 3.3±0.3 4.5±0.5 5.0±0.5
H 28±2.0 28±2.0 26±2.0 35±2.0 33±2.0
d 0.5±0.05 0.6±0.05 0.6±0.05 0.8±0.05 0.8±0.05
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel: (800)-247-2232 Fax: (800)-TAITFAX (800)-TAITRON (800)-824-8329 (661)-257-6060 (661)-257-6415
Rev. B/JJ 20070810 Page 1 of 6
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Metal Film Resistor - Normal & Miniature Style RMF&RMFS Series
Absolute Maximum Ratings & Characteristics
Description Power Rating at 70° C Maximum Working Voltage Maximum Overload Voltage Dielectric Withstanding Voltage Temperature Coefficient Resistance Range ±0.5%, ±1% ±0.1%, ±0.25% RMF 08C 1/8 200 400 300 RMF S25C 1/4 200 400 400 RMF 25C 1/4 250 500 500 RMF S50C 1/2 300 600 500 RMF 50C 1/2 350 700 500 RMF S1W 1 400 800 700 RMF 1W 1 500 1000 1000 RMF S2W 2 500 1000 1000 RMF 2W 2 500 1000 1000 Unit W V V V ppm/° C
±15ppm/° C, ±25ppm/° C, ±50ppm/° C, ±100ppm/° C 10~1M
Ω 100~100K -55 to +155 °C
Operating Temperature Range
Power derating curve
For resistors operate in the ambient temperature over 70˚C, loading power ratio will derate in accordance with following curve.
Percentage of the rated dissipating (%)
Ambient Temperature (°C)
Rev. B/JJ 20070810 www.taitroncomponents.com Page 2 of 6
Metal Film Resistor - Normal & Miniature Style RMF&RMFS Series
Environmental Performance Specification
Item Short Time Overload Dielectric Withstanding Voltage Insulation Resistance Solderability Terminal Strength Pulse Overload Load Life in Humidity Load Life Temperature Cycling Resistance to Soldering Heat JIS-C-5202 5.5 JIS-C-5202 5.7 JIS-C-5202 5.6 JIS-C-5202 6.5 Test Methods 2.5 Times RCWV for 5 seconds In V-Block for 60 Seconds In V-Block 235±5°C for 5±0.5 Seconds Specifications ±(0.25% +0.05Ω) by Type >1000MΩ Covering 95% >=2.5kg (24.5N) ±(1% +0.05Ω) ±(1.5% +0.05Ω) ±(1.5% +0.05Ω) ±(0.75% +0.05Ω) ±(0.25% +0.05Ω)
Direct Load for 10 Seconds in The Direction of The Terminal Leads JIS-C-5202 5.8 JIS-C-5202 7.9 JIS-C-5202 7.10 JIS-C-5202 7.4 JIS-C-5202 6.4 4 Times RCWV 1000 Cycle (1 sec. on, 25 sec. off) 40±2°C , 90-95% RH at RCWV for 1000 hours (1.5 Hrs. on, 0.5 Hrs. off) 70°C at RCWV for 1000 Hrs (1.5 Hrs. on, 0.5 Hrs. off) -55°CÆ Rom Temp. Æ +155°C Æ Rom Temp. for 5 Cycles 350±10°C for 3±0.5 Seconds
Rev. B/JJ 20070810 www.taitroncomponents.com Page 3 of 6
Metal Film Resi.