Metal film molded resistor RESI MMFR6518B2K00V9 with low temperature coefficient and high load life stability
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
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 an excellent solution for electronic circuits with demanding TCR and stability requirements. The resistor utilizes 75% alumina ceramic cores with precision metal film deposition technology, achieving target resistance through laser trimming. Its leaded structure minimizes PCB stress impact, and it boasts strong moisture resistance.
Product Attributes
- Brand: C&B Electronics
- Origin: Shenzhen, China
- Material: Precision metal film on 75% alumina ceramic core
- Certifications: IEC 60115-1
Technical Specifications
| Series | Size | Rated Power | Max. Operating Voltage | Operating Temperature | TCR | Resistance Tolerance | Resistance Range | Max. Overload Voltage |
|---|---|---|---|---|---|---|---|---|
| MMFR3679 | 1/4W | 0.25W | 100V | -55~+155 | 50ppm/ | 0.1%, 0.2%, 0.5%, 1% | 21~2M | 600V |
| MMFR4821 | 1/2W | 0.5W | 150V | -55~+155 | 50ppm/ | 0.1%, 0.2%, 0.5%, 1% | 21~2M | 700V |
| MMFR6326 | 1W | 1W | 200V | -55~+155 | 50ppm/ | 0.1%, 0.2%, 0.5%, 1% | 21~2M | 800V |
| MMFR7629 | 2W | 2W | 250V | -55~+155 | 50ppm/ | 0.1%, 0.2%, 0.5%, 1% | 21~2M | 900V |
Dimensions & Packaging
| Series | Size | L (mm) | D (mm) | d (mm) | Quantity Per Bulk |
|---|---|---|---|---|---|
| MMFR3679 | 1/4W | 3.60.5 | 1.70.15 | 0.70.1 | 1000pcs |
| MMFR4821 | 1/2W | 4.80.5 | 1.70.15 | 0.70.1 | 1000pcs |
| MMFR6326 | 1W | 6.30.5 | 1.90.15 | 0.90.1 | 1000pcs |
| MMFR7629 | 2W | 7.90.5 | 2.10.15 | 1.00.1 | 1000pcs |
Performance Test Summary
| Performance Test | Test Method | Standards | Max. Change |
|---|---|---|---|
| Load Life | 105, 1000h, RCWV or max. operating voltage (the lower one) | IEC 60115-1, 4.25 | 0.5%+0.5 |
| Moisture Resistance | 60, 90-95% RH for 1000 hours, 1.2xRCWV or the maximum operating voltage (the lower one) | IEC 60115-1, 4.18 | 0.5%+0.5 |
| Insulation Resistance | Apply a DC voltage of 100V between the electrode and the substrate for 60s and measure the insulation resistance | IEC 60115-1, 4.7 | 10000M, minimum |
| TCR | +155, +25 Ref. | IEC 60115-1, 4.9 | Within the nominal value range |
| Resistance to Solder Heat | 1704, 202s, immersed 40.6mm of the body | IEC 60115-1, 4.17 | 0.5%+0.5 |
| Short-Time Overload | 2.5x RCWV or 1x maximum operating voltage (the lower one) for 5s | IEC 60115-1, 4.13 | 0.5% No visible damage |
| Resistance to Solvent | Immerse in IPA for 2 min with ultrasonic | IEC 60115-1, 4.14 | Clear marking No visible damage |
| Solderability | 35010, 30.5s | IEC 60115-1, 4.11 | 95% coverage |
| Dielectric Withstanding Voltage | Apply a AC voltage with an effective maximum overload voltage between the electrode and the substrate at a speed of approximately 100V/s, for 60s | IEC 60115-1, 4.7 | No breakdown or flashover |
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
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