SMCJ8V0A Circuit Protection

Current - Peak Pulse (10/1000µs):	110.3A
Base Part Number:	SMCJ8V0
Supplier Device Package:	SMC (DO-214AB)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	--
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Series:	--
Voltage - Clamping (Max) @ Ipp:	13.6V
Voltage - Breakdown (Min):	8.89V
Voltage - Reverse Standoff (Typ):	8V
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

The SMCJ8V0A is a type of unidirectional Transient Voltage Suppressor (TVS) diode. This type of diode is used to protect sensitive electronic components against brief voltage spikes or surges, which should not exceed the diode’s peak pulse power or peak pulse current ratings. This diode is a non-polarized, low capacitance device, measuring 2.5mm x 2mm in a small footprint SMC package. It’s designed for high reliability and durability. The working voltage for this device is 8V, and its peak power rating is up to 500W (10/1000 μs).

Application fields

SMCJ8V0A TVS diodes are used to protect DC/DC converters, communication and data line circuits, especially in applications with low to medium working voltages, such as telephone lines and computers. The low capacitance of this device also makes it suitable for protecting sensitive communications ICs from ESD and EFT pulses.This diode is also suitable for lower power applications, such as USB ports, high speed data lines (I2C, SPI, UART, etc.), microcontrollers, and other consumer electronics.

Working Principle

SMCJ8V0A TVS diodes use a breakdown voltage of 8V to protect the connected circuits from any voltage spike or surge that exceeds the device peak power rating. When a voltage spike higher than the device breakdown voltage is applied, the diode conducts current, which is diverted to the ground. This results in a clamping of the voltage by preventing it from rising higher than the device breakdown voltage.Once the clamping voltage is reached, the current stops flowing and the device begins to dissipate power. This is known as power dissipation.

Conclusion

In conclusion, the SMCJ8V0A is a type of unidirectional TVS diode that is used to protect sensitive electronic components from voltage spikes and surges. It is widely used in low to medium voltage applications, such as DC/DC converters, communication and data line circuits, USB ports, high speed data lines, and microcontrollers. The device works by applying a breakdown voltage of 8V that clamps the voltage once it exceeds the device peak power rating. By using this diode, it is possible to protect sensitive electronic components from any type of voltage surge.

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