PTGL07BD100N2B51A0

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PTC resettable fuses are an electrical protection device that enable circuit designers to incorporate reliable, cost-efficient overcurrent protection without breaking a circuit. The PTGL07BD100N2B51A0 model is a polymer positive temperature coefficient (PPTC) device that is designed for overcurrent protection of portable electronics and consumer appliances. This article will discuss the application field and working principle of the PTGL07BD100N2B51A0.

Application Field

The PTGL07BD100N2B51A0 is suitable for overcurrent protection in a variety of portable electronic and consumer appliances. It is typically used in rechargeable devices, such as laptop chargers, cell phone batteries, and USB cables, to protect against overcharging. It is also used in consumer appliances, such as washing machines and coffee makers, to prevent damage caused by surges or short circuits. Additionally, this device can be used in automotive electronics, such as airbag safety modules and navigation systems.

Working Principle

The PTGL07BD100N2B51A0 contains a special polymer material that exhibits a positive temperature coefficient. This means that the material’s resistance increases as the temperature increases. The device is designed with two metal plates, a rigid junction, and the polymer material. When an overcurrent is applied, the resistance of the polymer material quickly increases, resulting in a decrease in current flow. This decrease in current flow will eventually trip the device, causing it to enter its reset state.

In the reset state, the device will act as an open circuit. This open circuit stops the current flow, effectively protecting the appliance or device from damage. The internal components return to their original state when the temperature returns to a normal level, allowing the current flow to resume. The PTGL07BD100N2B51A0 has a reset time of approximately one minute and can be reset multiple times before failing.

Conclusion

The PTGL07BD100N2B51A0 is a popular PTC resettable fuse. It is designed for overcurrent protection of portable electronics and consumer appliances. Its positive temperature coefficient and open circuit reset state makes it an effective device for preventing damage caused by surges or short circuits. The application field and working principle of the PTGL07BD100N2B51A0 have been discussed in this article.

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