TPSMC20AHE3_B/H Circuit Protection

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TPSMC20AHE3_B/H is a transient voltage suppression (TVS) diode, capable of protecting components from voltage spikes. This diode, uniquely and conveniently, fits a variety of application fields and offers stringent performance, even at high-current flows. It ensures the highest level of system stability in electrically harsh environments with components safeguarded from voltage transients, ESD, and EFT noise.

TPSMC20AHE3_B/H is available in two distinct packages, the HE3S and the HE3B. The form factors of these packages, as depicted in the data sheet, are important to consider for efficient dissipation and integrated mounting. The diode offers superior functionality including low capacitance, low clamping voltage, and low dynamic resistance. It is designed with electron-beam welded contacts for durability, even in extreme conditions. The low profile design coupled with the high heat capacity enables low power loss.

The working principle of TPSMC20AHE3_B/H is based on its ability to dissipate excess current by quickly clamping voltage. It uses a Zener avalanche principle to sense higher than expected voltages and reduce them to a manageable level. At less than the breakdown voltage (VBR), the diode operates near the open-circuit potential with minimal effect on the signal flow.

At a higher than specified voltage, breakdown occurs, allowing a current to flow until the diode returns back to its normal operating voltage. The device allows the current to flow in one direction only, providing protection from back-EMFs. It also provides protection from power surge events, such as optical flash.

Additionally, TPSMC20AHE3_B/H features over-temperature protection, thermal shock protection, EMI/RFI protection, and ESD protection. It is tested to ensure that it meets the requirements of ISO7637 WAVE-2, DISMV-2, and IEC 61000-4-2, as well as MIL-STD-461G. The device is ideal for systems including television, telecom, wireless, and electronic engineering applications.

In conclusion, TPSMC20AHE3_B/H is an advanced TVS device intended to provide protection in the electrical system against voltage transients, ESD, and EFT noise. With its superior design, it provides low-capacitance, low-clamping voltage, and low-dynamic resistance, as well as a wide range of applications for television, telecom, wireless, and electronic engineering applications.

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