YQS5920 Circuit Protection

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PTC Resettable Fuses

YQS5920 is a PTC resettable fuse developed by Guangdong Yopson Technology Co., Ltd., which is mainly used to protect electrical and electronic products from overcurrent and thermal overload. The advantage of this kind of fuse is that it can automatically reset after overcurrent and short-circuit disconnection, which can reduce the time of changing the fuse and eliminate fire accident caused by manual operation. It is widely used in home appliances, lighting, automotive electronics, power supplies, communications and industrial control products.

Application Field

YQS5920 is mainly used in home appliances, lighting, automotive electronics, power supplies, communications and industrial control products. It can effectively protect the overall system or products from burning caused by short circuit or thermal overload. It provides overcurrent and overtemperature protection for the whole system, and can be used in communication equipment, instrumentation, intelligent home electronics, motor, switch, circuit and other non-waterproof electrical and electronic products.

Working Principle

YQS5920 PTC resettable fuse has a special polymerization material inside, its resistance value increases as the current in the circuit increases. When the current value is higher than the rated current, the resistance value in the device will immediately increase, thereby restricting the current flow in the circuit to limit, protect the circuit and components from destruction, and achieve the protection effect. When the fault is cleared and the current is reduced to the normal temperature, the resistance value of the device will be reset to a small value, the circuit will return to normal, and the device will be reset and reused at the same time.

YQS5920 is a polymeric PTC thermistor with a fast response to overcurrent and over temperature. Its overcurrent protection range is from 0.5 amperes to 10.0 ampere with a tolerance of + 5%, the voltage range is from 6.0 volts to 42.0 volts, and the temperature range is from -40 degrees to 125 degrees with a tolerance of + 10%. This product is UL certified and AB certified.

Conclusion

YQS5920 PTC resettable fuse is a kind of PTC resettable fuse developed by Guangdong Yopson Technology Co., Ltd., which is mainly used in home appliances, lighting, automotive electronics, power supplies, communications and industrial control products. Its working principle is that when the current is higher than the rated current, it will cause the resistance value inside the device to increase sharply to limit the current flow in the circuit to protect the circuit from destruction. After the fault is cleared and the current is reduced to the normal range, the resistance value of the device will be reset to the original state, and the device can be reused.

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