Automatically Resettable Mini-Breaker Thermal Cutoff SMD – SW Series
The SW series mini-breaker thermal cutoff (TCO) device is the smallest surface mount mini-breaker offered by Bourns
Bourns' SW resettable mini-breaker thermal cutoff (TCO) device uses the highly successful Model SC series footprint and offers a trip temperature setting of +70°C ±5°C. The SW series functions as a lower current protection device with maximum resistance values of 5 mΩ. This component has a hold current of 3 A at +60°C and a contact rating of up to 100 V peak (AC 128 kHz). This design can provide overtemperature protection for a wide range of applications such as LED systems, wireless charging coils, motors, and printed circuit board components, as well as the ability to perform as an overtemperature sensor.
- Miniature TCO device
- Surface mount, small body size
- Overtemperature and overcurrent protection
- Controls abnormal, excessive current virtually instantaneously, up to rated limits
- High corrosion resistance
- LED systems
- Wireless charging coils
- Motors
- Printed circuit board components
SW Series Thermal Cutoff Device
| Image | Manufacturer Part Number | Description | Type | Rated Functioning Temperature | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|
![]() | ![]() | SW70AAB | THERM TCO 70DEG C SPST-NC 4SMD | Breaker | 70°C (158°F) | 6132 - Immediate | $20.85 | View Details |



