Leaded molded resistor RESI MMFR2568B200RV9 with laser trimming and moisture resistant metal film technology
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Negotiable
MOQ:
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Delivery Time:
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Product Description
MMFR Precision Metal Film Molded Resistor
The MMFR series is a precision metal film molded resistor designed for high-end manufacturing and precision instrumentation applications. It offers tight tolerance, low TCR, and high load life stability, making it suitable for electronic circuits with demanding requirements. The resistor utilizes 75% alumina ceramic cores and precision metal film deposition technology, with laser trimming for resistance accuracy. Its leaded structure minimizes PCB stress, and it exhibits strong moisture resistance.
Product Attributes
- Brand: C&B Electronics
- Origin: Shenzhen, China
- Material: Precision metal film on 75% alumina ceramic cores
- Certifications: IEC 60115-1, IEC 68-2-2
Technical Specifications
| Series | Size | Rated Power | Max. Operating Voltage | Operating Temperature | TCR (ppm/) | Resistance Tolerance (%) | Resistance Range | Max. Overload Voltage | Dimensions (mm) L x D x d | Packaging Quantity Per Bulk |
| MMFR3679 | 1/4W | 1.33W | 150V | -55~+150 | 25 | 0.1, 0.2, 0.5, 1 | 2~2M | 300V | 3.60.5 x 1.70.1 x 1.70.1 | 1000pcs |
| MMFR4821 | 1/2W | 1.6W | 210V | -55~+150 | 25 | 0.1, 0.2, 0.5, 1 | 2~2M | 400V | 4.80.5 x 1.70.1 x 1.70.1 | 2000pcs |
| MMFR6326 | 1W | 1.86W | 250V | -55~+150 | 25 | 0.1, 0.2, 0.5, 1 | 2~2M | 500V | 6.30.5 x 1.90.1 x 1.90.1 | 2000pcs |
| MMFR7629 | 2W | 2.1W | 350V | -55~+150 | 25 | 0.1, 0.2, 0.5, 1 | 2~2M | 700V | 7.60.5 x 2.10.1 x 1.90.1 | 2000pcs |
Performance Test Summary:
| Performance Test | Test Method | Standard | Max. Change |
| Moisture Resistance | IEC 68-2-3 | 5.3.15 | 0.16%+0.16 |
| Insulation Resistance | IEC 68-1 | 5.7 | 20,000M |
| Load Life | IEC 68-2-2 | 5.3.16 | 0.16%+0.16 |
| TCR | IEC 68-2-2 | 5.9 | Within the nominal value range |
| Resistance to Solder Heat | IEC 68-2-20 | 5.29 | 0.16%+0.16 |
| Short-Time Overload | IEC 68-2-27 | 5.24 | 0.13%, No visible damage |
| Resistance to Solvent | IEC 68-2-2 | 5.41 | Clear marking, No visible damage |
| Solderability | IEC 68-2-20 | 5.28 | 99.5% coverage |
| Dielectric Withstanding Voltage | IEC 60115-1 | 4.7 | No breakdown or flashover |
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina