
MF52B Temperature-Sensing NTC Thermistor Series
The MF52B temperature-sensing NTC thermistor series uses enamel-wire leads and exhibits decreasing resistance as temperature rises. It is suitable for temperature measurement, compensation, and over-temperature protection, with multiple resistance/tolerance and B-value options for consumer, industrial, and automotive applications.
Download PDF DatasheetProduct Features
- ◆ Compact package and fast response for space-constrained and rapid-sampling scenarios.
- ◆ Good temperature characteristic consistency for easier calibration and mass-production control.
- ◆ Enamel-wire lead structure with selectable wire options for different installation and strength requirements.
- ◆ Multiple chip sizes and power options to match different sensing structures.
- ◆ Optional high-reliability configurations for insulation and withstand-voltage requirements.
- ◆ Suitable for a smooth transition from sample validation to mass production.
- ◆ Typical applications include medical devices, automotive electronics, power tools, smart home devices, battery protection, and communication equipment.
Technical Specification
Key Parameters (MF52B Series)
| Item | Specification / Range |
|---|---|
| Resistance range (R25) | 0.1 kΩ ~ 1000 kΩ |
| Resistance tolerance | F(±1%), G(±2%), H(±3%), J(±5%), K(±10%) |
| B-value (25/50°C) | 3380 / 3435 / 3470 / 3600 / 3950 / 4050 / 4300 K (multiple options) |
| Insulation resistance | ≥ 100 MΩ |
| Operating temperature range | -55 °C ~ +125 °C |
| Dissipation constant | ≥ 2 mW/°C |
| Thermal time constant | ≤ 7 s |
| Maximum rated power | ≤ 50 mW |
| Lead type | Enamel-wire leads (wire material can be selected by application) |
| High-temperature lead option | Optional high-temperature enamel wire for long-term operation around 180°C (subject to application confirmation) |
Note: Final resistance, B-value, size, and structure combinations should be selected based on target temperature range, required accuracy, and installation method.



