SMBJ440E3/TR13

Current - Peak Pulse (10/1000µs):	--
Base Part Number:	SMBJ440
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):	440V
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 to SMBJ440E3/TR13 TVS - Diodes

TVS (Transient Voltage Suppressor) diodes, like the SMBJ440E3/TR13, are special types of semiconductor protection diodes used to protect circuits from transients caused by electrostatic discharges (ESDs). These diodes are especially useful in protecting sensitive electronic equipment such as computers and cell phones from voltage spikes caused by lightning, power surges, and circuit switching events.The SMBJ440E3/TR13 is a low-capacitance surface mount TVS diode with a unidirectional active element. It is rated to withstand peak current of 400 Watts and can protect circuits from voltage spikes up to 440 Volts. This diode is extremely small and lightweight, making it ideal for use in portable electronic devices.

Applications of SMBJ440E3/TR13 TVS - Diodes

The SMBJ440E3/TR13 is suitable for a wide range of protection applications, including computers, cell phones, TVs, and home appliances.The diode can protect these devices from voltage spikes caused by lightning, power surges, and circuit switching events. It can also be used in noisy power supplies, where it helps prevent noise interference in sensitive circuits and components.The SMBJ440E3/TR13 is also used in automotive applications. It can protect car audio systems, power supply systems, and electronic brake systems from voltage spikes caused by power sags and surges.

Working Principle of SMBJ440E3/TR13 TVS - Diodes

When voltage exceeds the threshold voltage (also known as the breakdown voltage) of the TVS diode, the diode begins to conduct. This is known as the clamping voltage. As the current increases, the voltage drop across the diode also increases. At a certain point, called the avalanche voltage, the current is limited due to the diode starting to conduct heavily.The SMBJ440E3/TR13 is a unidirectional TVS diode, meaning it conducts current in only one direction. This makes the diode suitable for use in circuits, where it can protect sensitive components from voltage transients that travel in one direction.When the voltage transient dissipates, the current through the diode decreases, and the diode returns to its non-conductive state.

Summary

SMBJ440E3/TR13 is a unidirectional TVS diode often used to protect sensitive electronic devices from voltage transients caused by ESDs, lightning, power surges, and switching events. It is a low-capacitance surface mount diode rated to withstand peak current of 400 Watts and can protect circuits from voltage spikes up to 440 Volts. This type of diode is highly useful in a wide range of protection applications, including computers, cell phones, TVs, and home appliances. It also finds use in automotive applications, such as car audio systems, power supply systems, and electronic brake systems. The working principle of the SMBJ440E3/TR13 is based on the breakdown voltage, clamping voltage, and avalanche voltage.

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