SMDA15C-4/TR7

TVS - Diodes

The SMDA15C-4/TR7 is an unidirectional Transient Voltage Suppression (TVS) Diode. This component is used to protect sensitive electronics from electrostatic discharge (ESD) and electrostatic noise in many different applications. As an integrated circuit, this device consists of a diode, some resistive elements, and some passive elements such as capacitors and inductors.

The SMDA15C-4/TR7 has a wide range of breakdown voltage ratings, from 12V up to 19V. It is designed to provide protection across a broad operating temperature range. It is also designed to have a fast response time and maximum clamp protection. The TVS Diode is designed to protect sensitive circuits with its “clamping” and “shunting” capabilities. The clamping capability will clamp the voltage coming from the ESD or electrostatic noise to a safe level of voltage which can protect the sensitive circuits. The shunting is designed to shunt away any ESD or electrostatic noise to current away from the sensitive circuits.

Working Principle

In the simplest terms, a TVS Diode can be thought of as a protection circuit or switch. The TVS Diode is often used to protect sensitive electronics from any kind of overvoltage situation. When a voltage over the maximum rated voltage is applied on a sensitive component, the TVS Diode gets activated and the current starts flowing from the TVS Diode. This causes the voltage to be clamped to a safe level in order to protect the sensitive components from damage. The TVS Diode is triggered by an over-voltage situation and it stays active until the over-voltage condition is eliminated.

The SMDA15C-4/TR7 works by clamping the voltage across the TVS Diode when an ESD or electrostatic noise event occurs. This clamping action suppresses the surge and protects the sensitive circuitry. The two types of protection provided by the TVS Diode are shunt and clamp. The shunt protection pulls the the ESD or electrostatic noise away from the sensitive electronics, while the clamp protection limits the maximum peak voltage to a safe level. This limits the exposure of the delicate electronics to any kind of surge.

Application Field

The SMDA15C-4/TR7 is used in a wide variety of applications. Commonly known applications include automotive circuit protection, cell phone protection, computer and other consumer electronics. These applications involve the protection of sensitive components from any kind of electrostatic discharge an electrostatic noise. The TVS Diode is also used extensively in data and communication applications, such as Ethernet, USB, and other high-speed signal connections.

TVS Diodes are also employed in industrial and medical devices, as well as defense and avionic applications. The TVS Diode is designed to provide a strong clamping protection and high reliability in order to protect sensitive circuits from any kind of overvoltage situation or surge.

Conclusion

The SMDA15C-4/TR7 is an unidirectional Transient Voltage Suppression (TVS) Diode. This TVS Diode is designed to protect sensitive components from electrostatic discharge (ESD) and electrostatic noise in many different applications. In order to do this, the TVS Diode clamps the voltage coming from the ESD or electrostatic noise to a safe level, and also limits the maximum peak voltage to a safe level. The TVS Diode is used in many different applications, such as automotive circuit protection, cell phone protection, computer and other consumer electronics, data and communication, industrial and medical devices, and defense and avionic applications.