TV15C400J-HF Circuit Protection

Voltage - Clamping (Max) @ Ipp:	64.5V
Supplier Device Package:	DO-214AB (SMC)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	23.26A
Series:	--
Voltage - Breakdown (Min):	44.4V
Voltage - Reverse Standoff (Typ):	40V
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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Introduction

TVS - Diodes, or transient voltage suppressors (TVSs) diodes, are an essential part of any electrical circuit, providing protection from surges, ESD (electrostatic discharge) and lightning strikes. They are used in a wide range of applications ranging from consumer electronics, automotive, telecommunication, aerospace and industrial components. The TV15C400J-HF is a surface mount transient voltage suppressor diode that is specifically designed for Power Over Ethernet (PoE) applications. This article will discuss the application field and working principle of the TV15C400J-HF.

Application Field

The TV15C400J-HF is a part of a growing trend in the surge protection industry to introduce transient voltage suppressor diodes that are designed specifically for Power Over Ethernet (PoE) applications. As PoE technology continues to expand and be deployed in a wide variety of applications, such as industrial automation, critical infrastructure, and home automation, the need for a surge suppressor that is able to provide comprehensive protection has grown. The TV15C400J-HF is specifically designed to protect PoE devices, such as residential gateways, VoIP phones, and IP cameras, from large transient voltage surges resulting from lightning strikes.

Working Principle

The TV15C400J-HF uses a unidirectional diode as its key active element. A diode is an electronic component that only allows electrical current to flow in one direction. The diode used in the TV15C400J-HF is a bidirectional version, which means that it blocks current flow from one side of the diode, while allowing current to flow freely out of the other side. The diode is linked to a resistive element, which helps to limit the current. When a large voltage transient occurs, the diode and resistive element act as a clamp, limiting the voltage across the board and the devices it is protecting.

Conclusion

The TV15C400J-HF is a specialized transient voltage suppressor diode that is designed for use in Power Over Ethernet applications. It uses a unidirectional diode and a resistive element to provide surge protection from large transient voltage surges. This article provided an overview of the application field and working principle of the TV15C400J-HF.

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