PolySwitch™ PPTC is a resettable thermal element used in a wide range of electronic products, including automotive, battery and portable electronics. It is a nonlinear thermistor that limits dangerous high currents under fault conditions. This device can be repeatedly reset and does not require replacement. To date, billions of PolySwitch products have been used to protect a wide range of electronic products.
Raychem Circuit Protection offers PolySwitch™ PPTC (Polymeric Positive Temperature Coefficient) resettable devices, which act as non‑linear thermistors to protect electronic circuits from over‑current and over‑temperature conditions. The catalog describes the technology, benefits, and a wide range of applications across automotive, battery, computer, industrial, consumer, and telecommunications markets.
The document lists numerous series (LVR, LVRO, RXEF, RTEF, RUEF, RHEF, RGEF, RUSBF, etc.) with detailed electrical specifications such as hold current, maximum voltage, resistance values, and compliance certifications (UL, TUV, CSA, RoHS). It also includes definitions of key parameters and safety notes for proper use.
| LVROOSK Vmax | 240 V |
|---|---|
| RXEF110 Imax | 0.20 A |
| RHEF1000 Imax | 10.0 A |