PTGL09BD3R3N2B51A0

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PTC Resettable Fuses, also known as Polymer Positive Temperature Coefficient Fuses, are an innovative form of electrical protection. They are relatively new to the market as compared to traditional fuses and circuit breakers, but offer enhanced protection from electrical related issues. In particular, the PTGL09BD3R3N2B51A0 varistor is the latest development from manufacturer Laird, designed to provide over voltage protection in harsh environments. This article will explore the application field and working principle of this device.

The PTGL09BD3R3N2B51A0 varistor is designed for use in the automotive, marine and aerospace industries, where harsh and potentially hazardous electrical environments exist. In particular, the device is designed for continuous operation in temperatures ranging from -55°C to 125°C, making it suitable for a wide range of applications. In addition, the varistor is able to operate in air, convection and liquid cooling environments, making it particularly well suited to applications requiring increased flexibility.

The device is designed for the protection of circuits by sensing over voltage events and triggering a reset in the event of an over voltage condition. This reset action is specific to the PTC Resettable Fuses, as the device will automatically reset itself after cooling from an over voltage event, removing the need for manual resetting. This makes the device particularly useful in applications with stringent safety requirements, as the device can quickly and automatically return to its original state after an over voltage event.

The PTGL09BD3R3N2B51A0 is able to detect an over voltage event as small as 6V, meaning that it can protect against very small disturbances. The device is rated for an overvoltage capacity of up to 8V, providing a wide range of over voltage protection without the need for multiple devices. As a result, the device is suitable for a variety of applications across the automotive, marine and aerospace markets.

The working principle of the PTGL09BD3R3N2B51A0 varistor is based on the same principles that govern thermally-activated fuses. The device is designed with a polymeric material that changes its resistance value when exposed to elevated temperatures. The device is designed to detect elevated temperatures from an over voltage event and as the temperature rises, the resistance value within the fuse will also increase. This increase in resistance will cause the circuit to reset, thereby eliminating the over voltage event.

In conclusion, the PTGL09BD3R3N2B51A0 is an advanced over voltage protection device designed for harsh environments. The device is designed for use in the automotive, marine and aerospace markets, as well as other industries where harsh electrical environments exist. Furthermore, it is able to detect an over voltage event as small as 6V and is rated for an overvoltage capacity of up to 8V, making it suitable for a wide variety of applications. Finally, the device utilises the same principles that govern thermally-activated fuses, by leveraging a polymeric material that increases its resistance in the event of an over voltage event. The device is thus able to quickly detect and reset in the event of an over voltage, making it a reliable and effective method of over voltage protection.

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