All Range of Resettable Protectors for USB Type-C Connectors & Batteries from China Suppliers and Factory
Small Battery Protector (SBP)
Product Description:
USB Type-C connectors have been increasingly widely used in smartphones, Tablet PCs, notebooks, power banks, smart wearables, and other devices. Users benefit from its thin shape, up to 100W power transmission, and support for forward and reverse plug; however, connector overheat often occurs during use and can easily lead to smoke or even burning. For example, foreign bodies such as metal shavings, water stains, or hair inside the narrow-pin connector can cause Vbus and GND to form a micro-short circuit. Therefore, Type-C overheat protection becomes very necessary. Lucky Pioneer has launched both SBP and PPTC overheating protection solutions.
Product Characteristics
- Accurate temperature protection
- Thousands of protection cycles
- Compatible with 100W power circuits
Electric Transient Current Protection Components (PPTC)
Product Description:
PPTC products are a kind of electric transient current protection component, widely used in telecommunications, consumer electronics, computers, multimedia, batteries, and industrial automotive industries. Connected in series within a circuit, when an unusually large current occurs, the heat generated by the PPTC product increases sharply. The internal resistance limits the circuit current to a minimum level in a short time, avoiding damage to other components and preventing hazards. The protection effect is close to that of a one-time melting fuse, but with self-recovery characteristics — once the abnormal circuit is resolved, the PPTC product's resistance returns to its initial level in a short period and the circuit returns to normal.
Product Characteristics
- Compact product
- Ultra-low resistance
- Over-temperature & over-current dual protection
Frequently Asked Questions
QWhat is a Small Battery Protector (SBP) and how does it work?
The SBP is a thermal protection device designed for USB Type-C connectors. It monitors connector temperature and, when overheating is detected — often caused by foreign bodies such as metal shavings or water stains forming a micro-short circuit — it activates to interrupt or limit the circuit, preventing smoke or fire damage.
QWhat devices are compatible with the SBP solution?
The SBP is compatible with a wide range of devices that use USB Type-C connectors, including smartphones, tablet PCs, laptops, power banks, and smart wearable devices. It supports circuits with power transmission of up to 100W.
QWhat does PPTC stand for and what is it used for?
PPTC stands for Polymeric Positive Temperature Coefficient. It is an electric transient current protection component used across telecommunications, consumer electronics, computers, multimedia, battery systems, and the automotive industry to protect circuits from overcurrent and over-temperature events.
QHow is PPTC different from a traditional fuse?
Unlike a traditional one-time-use fuse that must be replaced after it blows, a PPTC device is self-resetting. Once the abnormal circuit condition is cleared, the PPTC's resistance automatically returns to its initial low level, restoring the circuit to normal operation without any replacement needed.
QCan the SBP and PPTC solutions be used together?
Yes. Lucky Pioneer offers both SBP and PPTC as complementary overheating protection solutions. They can be used in combination to provide layered protection — the SBP handles thermal events at the connector level, while the PPTC protects the broader circuit from transient overcurrent conditions.
QHow many protection cycles can the SBP withstand?
The SBP is engineered for thousands of protection cycles, making it a highly durable and reliable long-term solution for USB Type-C connector overheat protection in consumer and industrial electronics.







