PTGL9SAS7R6K6B51A0

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PTC Resettable Fuses

PTC Resettable Fuses, abbreviated as PTCs, are an important component in today’s electronic devices and are commonly used to replace standard fuses. They are a type of thermal protection device that opens an electrical circuit during an overload, and then automatically resets after the fault condition is removed. This eliminates the need for replacing a standard fuse after every overload event. Some of the more popular type of PTCs include the PolySwitch and the Bourns Resettable Fuse.

PTGL9SAS7R6K6B51A0 is a type of PTC resettable fuse manufactured by Bourns which has a wide range of application fields. This type of resettable fuse is commonly used for overvoltage protection in consumer electronics. It is also employed in various industrial, automotive, and communications applications.

Application Field

PTGL9SAS7R6K6B51A0 is used in consumer electronics and other applications where overvoltage protection is needed. It is often used in consumer cell phone chargers, external hard drives, and video game consoles. The PTC is also a popular choice for applications where safety is a priority — especially for medical equipment, test equipment, industrial equipment, and communications equipment.

In automotive applications, PTGL9SAS7R6K6B51A0 is used to replace standard fuses and protect against overvoltage events. It can be employed as a circuit breaker for vehicle audio systems, alarms/immobilizers, and electrical accessories/lighting. It is also popularly used as an airbag controller circuit breaker in vehicles.

Working Principle

PTGL9SAS7R6K6B51A0 is a self-resetting PTC device. It works by opening an electrical circuit when it detects an overcurrent or overvoltage condition. The PTC then heats up and goes into its self-resetting state. It essentially works as a mini-thermal switch and relies heavily on the environment and ambient temperature.

The resetting process usually takes around 10 to 30 seconds, depending on the severity of the overload, the ambient temperature, and the design of the PTC. During this resetting process, the PTC will experience some resistance so that the current flowing through the circuit is limited. This keeps the circuit from being permanently damaged by the initial overload.

Conclusion

PTGL9SAS7R6K6B51A0 is a type of PTC resettable fuse manufactured by Bourns. It has a wide range of application fields including consumer electronics, medical, test, automotive, and communications equipment. The working principle of PTGL9SAS7R6K6B51A0 is self-resetting — when an over-current or over-voltage condition is detected, the PTC will open the circuit and then reset itself after a few seconds. This eliminates the need for replacing standard fuses after every overload event.

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