SMBJ400AE3/TR13 Circuit Protection

Current - Peak Pulse (10/1000µs):	--
Base Part Number:	SMBJ400
Supplier Device Package:	SMBJ (DO-214AA)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Series:	--
Voltage - Clamping (Max) @ Ipp:	--
Voltage - Breakdown (Min):	--
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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TVS - DiodesThe SMBJ400AE3/TR13 is a Transient Voltage Suppressor diode, also known as a TVS diode. These devices are designed to protect electronic circuits and computer systems against voltage spikes caused by electro-static discharge (ESD), electrical transients, and over-voltage events. TVS diodes are a type of semiconductor device made up of an array of diodes connected in parallel. The electrical performance of the diode is determined by the number of diodes, their materials, and the geometry of the array.In general, these devices operate by providing a low resistance path for transient voltages and currents. The low resistance reduces or eliminates the high voltage spike that can occur during an ESD event. This protects the circuit from over-voltage and over-heating that could potentially cause severe damage. When an over-voltage event occurs, the diode turns “on” and shorts the voltage to ground, providing a low resistance path to dissipate the transient energy. The SMBJ400AE3/TR13 is especially suited for applications where the peak pulse current is in the hundreds to thousands of amps and the device can maintain its ratings over a wide temperature range.The way these devices work can be explained simply as follows. First, the diode has a breakdown voltage, commonly referred to as the clamping voltage. When the input voltage exceeds this breakdown voltage, the diode turns “on” and begins to conduct current. This current then reduces the voltage back down to the clamping voltage, protecting the circuit from over-voltage.The clamping voltage of the SMBJ400AE3/TR13 is 400V, which is one of its main advantages. This high clamping voltage makes the device well-suited for protecting equipment from transient voltages up to 400V. The other major advantage of this device is its ability to withstand high power levels. The SMBJ400AE3/TR13 can handle up to 11.0A of peak pulse, allowing it to dissipate large amounts of energy without damage.The applications for the SMBJ400AE3/TR13 are quite varied and include protection for communication and control circuits, computers and peripherals, consumer electronics, and industrial control equipment. This device is also suitable for surge protection of automotive and avionics systems, as well as lighting systems such as light-emitting diodes (LEDs) and neon signs. In summary, the SMBJ400AE3/TR13 is a high-clamping, high-power TVS diode that provides protection from electro-static discharge (ESD) and over-voltage transients. It is well-suited for industrial, automotive, and communications applications due to its high clamping voltage and high peak pulse current.

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