GL05T-HG3-08

Voltage - Clamping (Max) @ Ipp:	11V
Supplier Device Package:	SOT-23
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	2.5pF @ 1MHz
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	300W
Current - Peak Pulse (10/1000µs):	5A (8/20µs)
Series:	Automotive, AEC-Q101
Voltage - Breakdown (Min):	6.9V
Voltage - Reverse Standoff (Typ):	5V (Max)
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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GL05T-HG3-08 TVS-Diodes Overview

TVS-diodes, also known as transient-voltage-suppression diodes, are designed to protect electronics devices and circuits from damage due to overvoltage or high-voltage transients. This type of diode, GL05T-HG3-08 from Littelfuse, is one of the most popular ones in the industry due to its superior performance characteristics. It has a truly integrated design with a low capacitance silicon chip and a very reliable ceramic body design. This article will discuss the application field and working principle of the GL05T-HG3-08 TVS-diode in detail.

Applications

GL05T-HG3-08 TVS-diodes are primarily used in applications requiring intense energy absorption capability such as motor control and telecom line protection. It is also used for protecting sensitive electronic components in industrial high-voltage switching circuits, high-voltage power lines, lightning protection for power grids, and antenna protection for cellular telephone systems. This type of device is also used for secondary surge protection in automotive engines, air conditioners, and other appliances.

Working Principle

GL05T-HG3-08 TVS-diodes work on the principle of the avalanche breakdown phenomenon, where a diode is designed to smoothly conduct a large current at a predetermined voltage. This conducting of high currents causes an avalanche of charge carriers and produces a large current-voltage ratio between the avalanche region and the device\'s turning off application voltage. The device has a bipolar structure, which creates electric fields that control and constrain the avalanche process. When a voltage is applied which is greater than the device’s peak voltage, the electric field inside the device is intensified and the avalanche effect is triggered. The current is then absorbed by the device and dissipated as heat. The device also has an inherent response time, which is the time it takes for the avalanche phenomenon to be activated in response to the sudden change in voltage. This response time is very important, as it helps determine the protection level of the device during overvoltage conditions.

Advantages

GL05T-HG3-08 TVS-diodes have some attractive advantages over other types of overvoltage protection components. Firstly, it has a low response time, which allows it to quickly respond to a voltage surge. Secondly, it has a low capacitance, which helps reduce signal distortion due to its fast switching speed. Thirdly, it has excellent noise immunity, which helps improve system reliability. Finally, it also has a low on-state resistance, which improves its efficiency and increases its power handling capability.

Conclusion

GL05T-HG3-08 TVS-diodes are a highly versatile and reliable overvoltage protection device. Its low response time, low capacitance, excellent noise immunity, and low on-state resistance all combine to make it one of the most popular devices in the industry. The device is designed to absorb any voltage surges and protect electronic components from damage, making it the perfect choice for applications such as motor control, telecom line protection, and other industrial applications.

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