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TVS - Diodes

The ATV15C450J-HF is a surface-mount transient voltage suppressor (TVS) diode specifically designed to protect 1.5KV from transient surges. This miniaturized surge suppressor is packaged in a small, low profile SMA flat package which is suitable for surface mount applications. Its reversed-biased features make it ideal for suppressing transients embodied in electromagnetic interference (EMI). It provides excellent clamping capability, very fast response time, and low incremental surge resistance.

The ATV15C450J-HF TVS diode provides a wide range of protection against ESD, EFT (electrical fast transient), and lightning-induced over-voltage surges. It is commonly used in analog and digital circuits and logic for transient suppression. Its reverse breakdown voltage protects sensitive circuit components from the degrading effects of voltage overloads.

Application Field

The ATV15C450J-HF can be used in the following applications:

• Consumer electronics and automotive
• Power supply, I/O and telecom line protection
• Data and communication line protection
• Military, aerospace and medical equipment

Working Principle

The ATV15C450J-HF is a unidirectional, miniaturized, surface-mount TVS diode that acts as a protective barrier against transients in electronic equipment. It can absorb high-energy transients and clamp them to a safe level, providing protection against the surge.

The TVS diode works by providing a low resistance path for current to flow through in a reverse-biased condition. This low resistance path provides a clamping effect during fast-transient events, effectively bypassing the transient current while keeping the circuit in its normal operating range. The diode dissipates the excessive voltage and current, limiting the energy to a safe level. This protects equipment from high-energy – and potentially devastating – transient surges.

The ATV15C450J-HF is especially well-suited for protecting circuits from ESD, EFT (electrical fast transient) and lightning-induced over-voltages. It handles a peak current of up to 25A and a clamping voltage of 8.9V. It features fast clamping response time, inherently low incremental surge resistance, and low capacitance for electromagnetic interference (EMI) protection. This TVS diode is RoHS compliant and is UL recognized.

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