The B57550 series glass-encapsulated thermistors are high-performance temperature sensors with high temperature resistance, high stability, fast response speed, and small size. They are widely used in automotive electronics, industrial electronics, and household appliances.
The B57550 temperature sensor from EPCOS is glass‑encapsulated and heat‑resistive, suitable for automotive electronics, industrial electronics and home appliances. It measures temperatures up to 300 °C and offers fast response times.
Key features include small dimensions, optional lead wire types (copper‑clad FeNi or nickel‑plated), a maximum power dissipation of 32 mW at 25 °C, and a climatic category of 55/300/56. Detailed specifications such as resistance tolerance, rated temperature, dissipation factor, thermal time constant and heat capacity are provided for design integration.
| Maximum power at 25 °C | 32 mW |
|---|---|
| Resistance tolerance | +1 % |
| Rated temperature | 25 °C |
| Dissipation factor (in air) | 0.75 mW/K |
| Thermal cooling time constant (in air) | ~7 s |
| Heat capacity | ~5 mJ/K |
| Climatic category (IEC 60068‑1) | 55/300/56 |
The sensor can measure temperatures up to 300 °C.
The device complies with IEC 60068‑1 climatic category 55/300/56.
The rated temperature is 25 °C.