SMB10J14A R5G Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS (Transient Voltage Suppressor) diodes are a class of protection devices designed to prevent overvoltage incidents from damaging a circuit. The SMB10J14A R5G is one of these diodes, and its application and working principle are essential to understand in order to properly utilize it.

Device Overview

The SMB10J14A R5G is a unidirectional TVS diode designed to protect DC power line circuits from overvoltage events. It has a Breakdown Voltage (BV) of 14 volts and a Clamping Voltage (VC) of 35 volts, making it suitable for use in a wide range of applications. It has an operating current of 10A and is packaged in a sturdy SMA-style casing, making it suitable for use in a variety of conditions.

The device contains a zener diode, two back-to-back MOSFETs, and a current limiter in its silicon structure, which are housed in a tiny SMA-style package. This construction makes the device small and light, yet still able to provide strong protection against overvoltage events.

Application Field

The SMB10J14A R5G can be used to protect a variety of DC power line circuits, including automotive, industrial, military, consumer, and telecommunications applications. It is well-suited to low power systems, such as those found in DC power supplies, DC-DC converters, modems, PC motherboards, and LCD display panels. It can also be used as a surge protector on household appliances, such as refrigerators, washing machines, and air conditioners.

It is designed to handle transient overvoltage events, such as those caused by lightning or electrostatic discharge. Its wide clamping voltage, low operating current, and compact size make it a suitable choice for a wide variety of applications.

Working Principle

The working principle of the SMB10J14A R5G is based on the zener diode contained in its structure. The zener diode is connected in reverse-biased direction to the circuit, and the back-to-back MOSFETs are connected in the forward-biased direction. The zener diode acts as a voltage regulator, preventing large, sudden voltage changes in the circuit.

The back-to-back MOSFETs act like a high-speed switch, allowing the diode to quickly clip off any excess voltage. This keeps the excess voltage from damaging the circuit, while still allowing the normal operating voltage to pass through unaltered. Finally, the current limiter helps the device to withstand high operating current and short-circuit conditions.

Conclusion

The SMB10J14A R5G is a small, light-weight TVS diode designed for protecting DC power line circuits against overvoltage incidents. Its application fields include automotive, industrial, military, consumer, and telecommunications applications, and its working principle is based on the zener diode, back-to-back MOSFETs, and current limiter contained in its structure. Properly understanding the device\'s application fields and working principle is essential for its proper utilization.

The specific data is subject to PDF, and the above content is for reference