SMBJ400A-TP Circuit Protection

Voltage - Clamping (Max) @ Ipp:	648V
Supplier Device Package:	DO-214AA (SMB)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Current - Peak Pulse (10/1000µs):	900mA
Series:	--
Voltage - Breakdown (Min):	447V
Voltage - Reverse Standoff (Typ):	400V
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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SMBJ400A-TP is a unidirectional TVS - Diodes (Transient Voltage Suppressor--Diode) with a 600 watts peak impulse power dissipation capabilityat 10/1000μs waveform. This Diode is suitable for bi-direction ESD, lighting and surge protection. Its ESD protection performance can meet the IEC 61000-4-2 (ESD) ± 15kV (air), ±8kV (contact). SMBJ400A-TP is designed as a two-terminal bidirectional transient voltage suppressor. The device is based on a PN junction structure of highly doped silicon with high reverse breakdown voltage in a small chip.When an electrical surge occurs, the PN junction is put in a reverse breakdown state. This action can help to reduce the voltage of the source and limited the current. The maximum peak pulse power dissipation and voltage rate of the device depend on its PN junction structure. Under overload current, the device can limit the current and peak voltage to a safe level. This mechanism helps to protect the circuit from further damage and limit the surge current. SMBJ400A-TP can be used in a variety of applications, from data lines to power circuits. It can be used in any application where protection from ESD and other undesirable high voltage transients is necessary. SMBJ400A-TP can also be used in high-end communications systems, automotive electronics, medical equipment, consumer electronics, and military systems. The primary advantage of using SMBJ400A-TP is that it is able to protect circuits from the destructive effects of ESD, lighting and surge events. The device is designed to limit the peak transient voltage on the sensitive circuit that would otherwise cause damage. This helps reduce the current and peak voltage on the sensitive electronic components, which helps to protect the circuit from being further damaged. SMBJ400A-TP is also designed to safely dissipate the surge current and reduce the voltage stress on the internal devices.The working principle of the SMBJ400A-TP involves the use of a junction between a series of diodes. This junction helps to control the current flow and limit the peak voltage. When the voltage level exceeds a certain level, the PN junction will become reverse-biased, and the current will be diverted from the high-voltage source. The current from the source will then be safely discharged into the ground. The device then limits the peak transient voltage by reducing the current and peak voltage on the sensitive circuit components. Overall, the SMBJ400A-TP provides a great solution for ESD, lighting, and surge protection. Its low inductance and excellent surge capability make it ideal for protecting sensitive electronic components. The device is designed to limit the peak transient voltage on the sensitive circuit and help protect it from further damage. The device is suitable for use in high-end communications systems, automotive electronics, medical equipment, consumer electronics, and military systems.

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