Hot Products
China Factory Suppliers for Resettable Overheat Protectors for USB Type-C Connectors and Batteries
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-in. However, connector overheating often occurs during use, which 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 has become 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, industrial automotive industries, and other fields. PPTC products are connected in series in the circuit. When an unusually large current occurs, the heat generated by the PPTC product increases sharply. The internal resistance limits the circuit current in a short time to the minimum level, avoiding damage to other components and preventing hazards. The protection effect is close to a one-time melting fuse, but with self-recovery characteristics — when the abnormal circuit fault is cleared, the PPTC product's resistance returns to the initial level in a short period of time, and the circuit returns to normal.
Product Characteristics
- Compact product design
- Ultra-low resistance
- Over-temperature & over-current dual protection
Frequently Asked Questions
What is the difference between SBP and PPTC protection solutions?
The SBP (Small Battery Protector) focuses primarily on temperature-based overheat protection for USB Type-C connectors, while PPTC (Electric Transient Current Protection Components) provides both over-temperature and over-current dual protection. PPTC also features automatic self-recovery after a fault is cleared, making it suitable for a broader range of electronic applications.
Can the SBP be used with 100W fast-charging circuits?
Yes. The SBP is specifically designed to be compatible with 100W power circuits, making it suitable for modern fast-charging applications in smartphones, laptops, and power banks that use USB Type-C connectors.
How does PPTC self-recovery work after a fault?
When an abnormal overcurrent or over-temperature event occurs, the PPTC product's internal resistance increases sharply to limit the current. Once the fault condition is removed, the PPTC resistance returns to its initial low level within a short period of time, restoring the circuit to normal operation — without requiring manual replacement like a traditional fuse.
What types of foreign bodies can cause a micro-short circuit in USB Type-C connectors?
Common culprits include metal shavings, water stains, and hair. Due to the narrow pin design of USB Type-C connectors, these foreign bodies can bridge the Vbus and GND contacts, creating a micro-short circuit that generates excessive heat and potentially causes smoke or fire damage.
In which industries are PPTC components commonly applied?
PPTC components are widely used across multiple industries, including telecommunications, consumer electronics, computers and multimedia devices, battery packs, industrial equipment, and the automotive sector — anywhere reliable transient current and temperature protection is required.
How many protection cycles can the SBP withstand?
The SBP is engineered to endure thousands of protection cycles, ensuring long-term reliability and consistent overheat protection performance throughout the lifespan of the device it is installed in.