Beijing Silk Road Enterprise Management Services Co., Ltd.
| Type | Metal Film Resistor |
| Resistance | 250Ω |
| Voltage-Supply(Max) | 250V |
| Power(Watts) | 250mW |
| Temperature Coefficient | ±5ppm/℃ |
| Tolerance | ±0.1% |
| Operating Temperature | -55℃~+125℃ |
| Description | Metal Film Resistor 250Ω 250mW ±5ppm/℃ ±0.1% Through Hole,D2.5xL6.8mm Through Hole Resistors RoHS |
| Mfr. Part # | MMFR2568B250RV9 |
| Package | Through Hole,D2.5xL6.8mm |
| Model Number | MMFR2568B250RV9 |
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Product Specification
| Type | Metal Film Resistor | Resistance | 250Ω |
| Voltage-Supply(Max) | 250V | Power(Watts) | 250mW |
| Temperature Coefficient | ±5ppm/℃ | Tolerance | ±0.1% |
| Operating Temperature | -55℃~+125℃ | Description | Metal Film Resistor 250Ω 250mW ±5ppm/℃ ±0.1% Through Hole,D2.5xL6.8mm Through Hole Resistors RoHS |
| Mfr. Part # | MMFR2568B250RV9 | Package | Through Hole,D2.5xL6.8mm |
| Model Number | MMFR2568B250RV9 |
The MMFR series of precision molded metal film resistors offers high accuracy, low temperature coefficient, and excellent load life stability. Utilizing 96% alumina ceramic rods and precision metal film deposition technology, these resistors achieve target resistance values through laser trimming. With a minimum temperature coefficient of 5ppm/ and superior load stability (maximum resistance change of 0.05% after 1000 hours at 70 under rated power), they are well-suited for electronic circuits demanding high precision and stability. The pin structure is designed to minimize PCB stress impact. Ideal for precision instruments and meters.
| Series | Size | Power (+70) | Resistance Range | Temperature Coefficient | Optional Accuracy | Max. Working Voltage | Max. Overload Voltage | Working Temperature Range | Resistance Standard |
|---|---|---|---|---|---|---|---|---|---|
| MMFR2568 | 2568 | 0.25W | 10-1M | 5 ppm/ | 0.05%, 0.1%, 0.5%, 1.0% | 250V | 500V | -50~+125 | E24, E96 |
| MMFR3710 | 3710 | 0.5W | 10-1M | 5 ppm/ | 0.05%, 0.1%, 0.5%, 1.0% | 300V | 600V | -50~+125 | E24, E96 |
| MMFR5215 | 5215 | 0.75W | 10-1M | 5 ppm/ | 0.05%, 0.1%, 0.5%, 1.0% | 350V | 700V | -50~+125 | E24, E96 |
| MMFR6518 | 6518 | 1.0W | 10-1M | 5 ppm/ | 0.05%, 0.1%, 0.5%, 1.0% | 400V | 800V | -50~+125 | E24, E96 |
| Size | L (mm) | D (mm) | d (mm) | Packaging | Quantity per Bag |
|---|---|---|---|---|---|
| 2568 | 2.50.4 | 6.80.4 | 0.60.05 | Bag | 200pcs |
| 3710 | 3.70.4 | 10.00.4 | 0.60.05 | Bag | 100pcs |
| 5215 | 5.20.4 | 14.80.4 | 0.60.05 | Bag | 100pcs |
| 6518 | 6.50.4 | 18.30.4 | 0.80.05 | Bag | 100pcs |
First line: RESI (Brand), Resistance Value (e.g., 10R0 for 10). Second line: Accuracy Code (e.g., B for 0.1%), Temperature Coefficient Code (e.g., T5 for 5ppm/), Production Date Code (e.g., 2320 for 2023, 20th week).
| Test Item | Test Method | Standard | Max. Value |
|---|---|---|---|
| Load Life | 702, 1000h, rated power or max. working voltage (min of both) | 0.05% | |
| Temperature Coefficient | Measurement point +85, reference point +25 | 5ppm/ | |
| Soldering Heat Resistance | +2603, 101s, immersion 30.5mm | IEC 60115-1, 4.24 | 0.05%+0.05 |
| Short-time Overload | 10x rated voltage or 2x max. working voltage (min of both), 5s | IEC 600115-1 4.7 | 0.05%+0.05 |
| Solvent Resistance | Immersion in IPA for 5 minutes, with ultrasonic cleaning | IEC 600115-1 4.6 | No visible damage |
| Solderability | 2355, 30.5s | IEC 600115-1 4.25 | 95% coverage, clear marking, no visible damage |
| Damp Heat | 402, 90-95% RH, 56 days, 0.1x rated voltage or max. working voltage (min of both) | IEC 600115-1 4.8 | 0.05%+0.05 |
| Dielectric Strength | AC voltage at approx. 100V/s to max. overload voltage, held for 60s | IEC 600115-1 4.18 | No breakdown or arcing |
| Insulation Resistance | DC voltage of 100V applied between terminals, held for 60s, then measure insulation resistance | IEC 600115-1 4.13 | 10000M minimum |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
>>300
Ecer Certification：
Verified Supplier
Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an... Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an...
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