BZW04-145HB0G

Voltage - Clamping (Max) @ Ipp:	234V
Supplier Device Package:	DO-204AL (DO-41)
Package / Case:	DO-204AL, DO-41, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	1.7A
Series:	Automotive, AEC-Q101, BZW04
Voltage - Breakdown (Min):	161V
Voltage - Reverse Standoff (Typ):	145V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to TVS - Diodes

A TVS diode, also known as a transient voltage suppressor or surge suppressor, is a type of switching semiconductor diode designed to protect electronic equipment from voltage and current transients, including electrical surges caused by lightning or other forms of electromagnetic energy. TVS diodes are available in many different configurations and ratings to provide protection for sensitive electronic components, including integrated circuits, power supplies, and communications equipment.

Advantages of TVS - Diodes

TVS diodes provide many benefits when utilized in a variety of applications. As they are designed for tremendous surge capabilities, they are often used in motor-driven systems and other power-heavy environments. TVS diodes are reliable and effective when it comes to mitigating EMI/RFI interference and perform optimally when paired with other EMI/RFI shielding techniques. Additionally, TVS diodes do not suffer from the “snapback” phenomenon, which is inherent in typical silicon diodes.

BZW04-145HB0G Application Field and Working Principle

The BZW04-145HB0G is a TVS diode designed to protect against overvoltage transients. It is rated at 14V, bi-directional, and only requires a reverse clamping voltage of 11V. It provides a minimum protection of 8A with a surge capability of 1500W.The TVS diode works as a two-directional, fast acting clamp. It is placed across the power-supply lines of equipment where it can minimize the voltage in case of an electromagnetic transient or surge, and protect the equipment from overvoltage. The limitation of the current through the diode is known as IR.In the case of a BZW04-145HB0G, the IR is the minimum clamping current (8A) that will cause the device to clamp and reduce or eliminate any high voltage. When the reverse current (IR) exceeds 8A, the device will begin reverse-biasing the diode and clamp the transient surge voltage.

Conclusion

The BZW04-145HB0G is a type of TVS diode designed to protect electronic equipment from voltage and current transients. It is rated at 14V, bi-directional, and only requires a reverse clamping voltage of 11V. It provides a minimum protection of 8A with a surge capability of 1500W.The TVS diode works as a two-directional, fast-acting clamp, and when an overvoltage transient occurs, it begins reverse-biasing the diode, limiting the current (IR) and clamping the surge voltage. The BZW04-145HB0G is an effective and reliable form of protection, ideal for motor-driven systems and other power-heavy environments.

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