SMF58A RQG Circuit Protection

Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SOD-123W
Supplier Device Package:	SOD-123W
Series:	SMF
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Zener
Unidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	58V
Voltage - Breakdown (Min):	64.4V
Voltage - Clamping (Max) @ Ipp:	95V
Current - Peak Pulse (10/1000µs):	2.1A
Power - Peak Pulse:	200W
Power Line Protection:	No
Applications:	General Purpose

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

Introduction

TVS (Transient Voltage Suppression) Diodes are devices that can provide protection from ESD, EFT, and surge disturbances in electronic circuits. They are used to reduce energy pulses and to suppress overvoltage transients that can cause damage to sensitive devices. The SMF58A RQG is one of the transient voltage suppression diodes that is specially designed for automotive applications, so it has a wide range of features for these. In this article, we will look more closely at the SMF58A RQG application field and working principle.

Features and Benefits

The SMF58A RQG is a low-power unidirectional transient voltage suppressor diode with a wide range of voltage and surge capability. It provides excellent clamping performance and snap-back voltage suppression when overvoltage transients occur. It is also highly reliable with a long operating life, and it can withstand temperatures from -55°C up to +175°C. It has good thermal stability and it can dissipate up to 10W of power in case of surge conditions. Additionally, it is very short in size and has a small footprint, making it easy to install even in tight-fitting, automotive applications.

Application Field

The SMF58A RQG can be used in a wide range of applications, such as automotive components, industrial equipment, security systems, communication networks, and medical instruments. In these applications, it provides protection from ESD, EFT, and surge disturbances. It is widely used in automotive applications because of its capability to withstand temperature and voltage changes, and its small size.

Working Principle

The SMF58A RQG works in several different stages to protect circuits from ESD, EFT, and surge disturbances. At the start, the diode is in its forward biased condition and conducts the current through the circuit. When an overvoltage transient occurs, the diode quickly snaps back to its reverse biased state, thus suppressing the voltage surge. This clamping voltage is usually limited to a certain amount, which is set by the internal components of the diode. In case of an ESD or EFT event, the diode absorbs the energy pulse and dissipates it as heat so that the rest of the circuit remains protected from the voltage spikes.

Conclusion

The SMF58A RQG is a low-power, unidirectional transient voltage suppressor diode that provides excellent clamping performance and snap-back voltage suppression when overvoltage transients occur. It has a wide range of applications, including automotive components, industrial equipment, security systems, communication networks, and medical instruments. Additionally, it is highly reliable, can withstand extreme temperatures, and dissipates heat in surge conditions to protect the rest of the circuit. It is also very short in size and has a small footprint, which makes it particularly suitable for use in small, automotive applications.

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

Part Number	Manufacturer	Price	Quantity	Description