BZW04P85HE3/54

Current - Peak Pulse (10/1000µs):	2.9A
Base Part Number:	BZW04P
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
Series:	Automotive, AEC-Q101, TransZorb®
Voltage - Clamping (Max) @ Ipp:	137V
Voltage - Breakdown (Min):	95V
Voltage - Reverse Standoff (Typ):	85.5V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

A Transient Voltage Suppression (TVS) diode is an electrical/electronic device that offers protection from voltage spikes, especially from lightning. A TVS diode is made from a semiconducting material and has an avalanche breakdown voltage at small currents. It also features the ability to pass reverse voltage from anode to cathode and vice versa. The BZW04P85HE3/54 is a very popular TVS diode.

Application Field

BZW04P85HE3/54 TVS diode is particularly useful in protecting sensitive electronic equipment from destructive surges caused by lightning strikes and also from other sources of electrical transients. It is a very popular choice for protecting high-speed data transmission lines in many applications, such as automotive, industrial, military, telecom systems, computer systems, instrumentation, consumer-electronics, and so on.Moreover, the BZW04P85HE3/54 is perfect for protecting against ESD (electrostatic discharge), EMI (electromagnetic interference), RF (radio frequency), and transient overvoltage events. With a clamping voltage of 8.5V, the diode can absorb enough power to prevent destruction in connected electronic devices.

Working Principle

One of the primary mechanisms of a TVS diode is a phenomenon called “avalanche breakdown”. This occurs as a result of the combination of an intense electric field and the effect of impact ionization in a piece of semiconductor material.When a BZW04P85HE3/54 TVS diode is connected on a circuit, it sends current only in one direction and blocks the current when a reverse current tries to flow. Whenever any transient voltage appears on the circuit, the diode comes into play and starts dumping all the transient current into itself, thereby protecting the connected equipment from any electrical harm.The BZW04P85HE3/54 TVS diode can also help to prevent any component on the circuit from being burnt out due to overvoltage conditions by providing a low-impedance path to ground. The low impedance of the diode will prevent current from passing through other components, thereby protecting them from possible damage.In conclusion, BZW04P85HE3/54 TVS diode is a very important and useful device for protecting electronic equipment from voltage surges and transients. It is widely used in a variety of applications due to its ability to offer comprehensive protection from electrical transients.

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