GL15T-HE3-08 Circuit Protection

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TVS - Diodes

The GL15T-HE3-08 is a type of transient voltage suppression (TVS) diode. It is a specialized electronic component designed to protect a voltage circuit from high-energy spikes or transients. This device works by providing a low impedance path to ground for energy that exceeds a predetermined voltage threshold. In so doing, the TVS diode dissipates the energy, thus preventing the voltage from increasing beyond its limiting value, which can otherwise damage the voltage circuits.

Description and Function

The GL15T-HE3-08 is a Bidirectional, 0.15 A (PMAX), 600 W peak pulse power device in a low-profile, surface mount plastic package. It is a convenient and cost-effective way of safeguarding sensitive circuits in a wide range of applications. The device is typically used in conjunction with a gas discharge tube relay or fuse to provide a reliable, multi-stage protection system against transients.

Application Field and Working Principle

TVS diodes are most often used to protect systems against unwanted voltage spikes caused by factors such as switching transients and electrostatic discharges. The GL15T-HE3-08 is especially well-suited for the efficient protection of consumer electronic components in a range of industries, such as automotive, communications, and industrial applications. When exposed to a voltage greater than its breakdown voltage, the GL15T-HE3-08 will switch from a low-impedance, high-conductance operating mode to a high-impedance, non-conducting mode, thus limiting the peak voltage that can be applied to the protected circuit.

The working principle of this device is based on the principle of avalanche breakdown. When exposed to a voltage greater than the breakdown voltage, the bias of the TVS diode increases until it reaches the point where the electrons in the depletion region are accelerated to a high enough velocity to ionize the surrounding molecules. This event creates an avalanche, resulting in the diode switching to a low-impedance conductive state. The diode will then switch back to an inhibited state after the energy has been dissipated.

Benefits

The GL15T-HE3-08 has a narrow breakdown voltage tolerance of +/- 5%. This makes it the perfect choice for precise voltage regulation. It also offers low energy dissipation and lightning surge protection. The device offers 6.5pF capacitance, which further ensures efficient operation. Furthermore, it has a low power rating of 0.15 A (PMAX) and a 600 W peak pulse power rating. Together, these features provide exceptional protection against high-energy transients, helping to safeguard the performance and longevity of sensitive circuits.

Conclusion

The GL15T-HE3-08 Transient Voltage Suppression (TVS) diode is a convenient and cost-effective way of safeguarding sensitive circuits in a wide range of applications. The device is based on the principle of avalanche breakdown and offers a narrow breakdown voltage tolerance of +/- 5%. When exposed to a voltage greater than its breakdown voltage, the GL15T-HE3-08 will switch from a low-impedance, high-conductance operating mode to a high-impedance, non-conducting mode, thus limiting the peak voltage that can be applied to the protected circuit. Low energy dissipation and lightning surge protection capabilities in addition to a low power rating and a high peak pulse power rating make the GL15T-HE3-08 the ideal choice for protecting against high-energy transients.

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