METAL FILM RESISTORS
Precision Metal Film Resistors
| MF
Tokenchina offers a range of resistive products tailored to precision applications. MF Series of precision metal film resistors offers tight tolerances, low-cost, and low TCRs over a wide resistance range and are suitable for applications where long-term stability is dominant. Applications include precision balances, test and measurement equipment, process control and medical systems. Tokenchina precision resistive products meet RoHS compliant and extend a complete line for both military and commercial applications. 
Features
Applications
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Dimension (Unit: mm) - Precision Metal Film MF
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| STYLE | MIL STYLE |
POWER RATING(W) |
DIMENSION (mm) | MAX WORKING VOLTAGE |
MAX OVERLOAD VOLTAGE |
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| RN | RNS | L | D | H | d ± 0.05 | RN | RNS | RN | RNS | ||
| MF - 12 | RN-50 | 1/8W | 1/4W | 3.2± 0.2 | 1.5 ± 0.2 | 26 ± 1.0 | 0.40~0.45 | 200 | 150 | 400 | 300 |
| MF - 25 | RN-55 | 1/4W | 1/2W | 6.0 ± 0.3 | 2.3 ± 0.3 | 26 ± 1.0 | 0.40~0.50 | 250 | 200 | 500 | 400 |
| MF - 50 | RN-60 | 1/2W | 1W | 9.0 ± 0.5 | 3.0 ± 0.5 | 26 ± 1.0 | 0.50~0.55 | 350 | 250 | 700 | 500 |
| MF - 100 | RN-65 | 1W | 2W | 11 ± 1.0 | 4.0 ± 0.5 | 35 ± 3.0 | 0.75~0.80 | 500 | 300 | 1000 | 600 |
| MF - 200 | RN-70 | 2W | 3W | 15 ± 1.0 | 5.0 ± 0.5 | 35 ± 3.0 | 0.75~0.80 | 500 | 350 | 1000 | 700 |
Resistance Range - Precision Metal Film MF
| STYLE | MIL STYLE | TOLERANCE | TC+15-25PPM | TC+50PPM | TC+100PPM | REMARK |
| MF-12 | RN-50 | ±1% ±0.5% ±0.25% |
100Ω-100KΩ 100Ω-100KΩ 100Ω-100KΩ |
10Ω-1MΩ | 10Ω-1MΩ | *Standard resistance is 10Ω-1MΩ, below or over this resistance on request. |
| MF-25 | RN-55 | ±1% ±0.5% ±0.25% ±0.1% |
51.1Ω-511KΩ 51.1Ω-511KΩ 100Ω-300KΩ 100Ω-300KΩ |
10Ω-1MΩ | 10Ω-1MΩ | |
| MF-50 | RN-60 | ±1% ±0.5% ±0.25% ±0.1% |
51.1Ω-1KΩ 51.1Ω-1KΩ 100Ω-551KΩ 100Ω-330KΩ |
10Ω-1MΩ | 10Ω-1MΩ | |
| MF-100 | RN-65 | ±1% ±0.5% ±0.25% ±0.1% |
51.1Ω-1KΩ 51.1Ω-1KΩ 100Ω-551KΩ 100Ω-330KΩ |
10Ω-1MΩ | 10Ω-1MΩ | |
| MF-200 | RN-70 | ±1% ±0.5% ±0.25% ±0.1% |
51.1Ω-1KΩ 51.1Ω-1KΩ 100Ω-551KΩ 100Ω-330KΩ |
10Ω-1MΩ | 10Ω-1MΩ |
Electrical Characteristics - Precision Metal Film MF
| REQUIREMENTS | CHARACTERISTICS | JIS C 5202 | MIL-R-10509F |
| Storage | ±(0.2%+0.05Ω) | Shelved one year in a room of normal temperature and humidity | |
| Load Life | ±(1%+0.05Ω) | 7.10 1,000hr | 4.6.13 |
| Terminal Strength | ±(0.5%+0.05Ω) | 6.1 | 4.6.7 |
| Effect of Soldering | ±(0.5%+0.05Ω) | 6.4 350°C 3 sec | 4.6.10 |
| Short Time Overload | ±(0.5%%+0.05Ω) | 5.5 A | 4.6.6 |
| Temperature Cycling | ±(0.5%+0.05Ω) | 7.4 | 4.6.4 |
| Low Temp Operation | ±(0.5%+0.05Ω) | 4.6.5 | |
| Moisture Resistance | ±(1%+0.05Ω) | 7.9 1,000hr | MIL R-22684 4.6.10 |
| Temp Coefficient (°C ) | ±25 ±50 ±100 | 5.2 | 4.6.12 |
| Operating Temp.Range | -55°C ~ 155°C | ||
| Dielectric Withstanding V | ±(0.5%+0.05Ω) | 5.7 A | 4.6.8 |
How to Order - Precision Metal Film MF
| MF-25 | 1/4W | 100R | J | TB/P | |||||||||
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