MF57 Disc NTC Thermistor 2400-4700 B Value 1% Tolerance Automotive Temperature Sensor
The MF57 disc type NTC thermistor serves as a precision temperature sensing component primarily used in automotive cooling systems, combustion engines, large electric power engines, and oil transformers. This versatile sensor is also suitable for various other temperature measurement applications.
- Automotive engine coolant and water tank temperature monitoring
- Rechargeable battery temperature management
- CPU and electronic component temperature control
- LCD and crystal oscillator temperature compensation
- General circuit temperature sensing and measurement
Features small tolerance ranges for resistance and B values, ensuring excellent coherence and interchangeability. Compatible with both domestic and international automotive instrumentation systems.
| Part Number | Rated Resistance R25 Range (Ω) | Resistance Tolerance | B Value (K) | B Value Tolerance | Rated Power (W) | Thermal Time Constant (sec) | Dissipation Coefficient (mW/℃) | Operating Temperature (℃) |
|---|---|---|---|---|---|---|---|---|
| MF57A | 0.22K~10K | ±1%, ±3%, ±5% | 2700~4700 (25/50℃) | ±1%, ±3%, ±5% | 0.3, 0.4, 0.5 | ≤60 | 6~13 | -40~+125 |
| MF57B | 0.4K~10K | ±1%, ±10%, ±20% | 3600~4500 (25/85℃) | ±1%, ±2%, ±3% | 0.2 | ≤50 | ≥3.5 | - |
| MF57C | 0.4K~2K | ±5%, ±10%, ±20% | 2400~3000 (25/50℃) | ±5% | - | - | - | - |
| Model | Rated Resistance R25 Range (Ω) | Resistance Tolerance | B Value (25/50℃) | B Value Tolerance | Rated Power (W) | Measuring Power (mW) | Thermal Time Constant (S) | Dissipation Coefficient (mW/℃) | Operating Temperature (℃) |
|---|---|---|---|---|---|---|---|---|---|
| MF57□□□2700 | 220-630 | ±1%, ±3%, ±5% | 2700 | ±1%, ±3%, ±5% | 0.3, 0.5 | ≤0.5 | ≤60 | 6-13 | -55-+125 |
| MF57□□□3000 | 270-5.1K | - | 3000 | - | - | - | - | - | |
| MF57□□□3300 | 270-5.1K | - | 3300 | - | - | - | - | - | |
| MF57□□□3600 | 270-5.1K | - | 3600 | - | - | - | - | - | |
| MF57□□□3900 | 270-5.1K | - | 3900 | - | - | - | - | ||
| MF57□□□4100 | 330-6.8K | - | 4100 | - | - | - | - | ||
| MF57□□□4300 | 330-6.8K | - | 4300 | - | - | - | - | ||
| MF57□□□4700 | 330-10K | - | 4700 | - | - | - | - |
Note: Custom designs available for different RT curves and mounting configurations.
For point temperature measurement applications, select a unique nominal resistance from standard values. For temperature measurement across specific ranges (T1-T2, T2-T3, etc.), ensure corresponding resistances R1, R2, R3 align with existing NTC material characteristics. Resistance values must be compatible with material resistivity and thermistor dimensions.
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