SMDJ33

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

SMDJ33 is a three-terminal transient voltage suppressor (TVS) diode typically used in standard rectifier applications. It is specifically designed to protect sensitive electronic equipment against voltage transients that occur due to inductive and capacitive load switching, lightning, electrostatic discharge, and other electrical transients. This diode series has an operating voltage range from 5 Volts to 400 Volts, and a unidirectional peak dynamic stand-off voltage range from 5.6 Volts to 568 Volts. It also features low capacitance, low leakage, and fast response time.

SMDJ33 is used in a variety of applications, such as surge suppression, overvoltage protection, noise decoupling, static protection, and others. This diode series can be used to protect sensitive electronic components from damage by providing a low-voltage barrier between the power source and the load. Additionally, the device can be used as a direct transient suppression element in many automotive systems, including fuel pumps and engine control modules.

The working principle of the SMDJ33 diode is based on the PN junction characteristics. When an electrical potential difference (voltage) is applied across the two terminals, the current flows through the PN junction barrier. This current is regulated by the breakdown voltage of the PN junction, which is the maximum voltage across the junction at which the current starts to increase exponentially. Usually, this breakdown voltage is approximately equal to the zener voltage of the diode. Above this voltage, breakdown occurs and the current continues to increase exponentially.

Once the current reaches the avalanche current, the diode enters the breakdown/avalanche region and the PN junction is clamped to the rated breakdown voltage. The avalanche current is sustained until the voltage is removed. In the case of an SMDJ33 TVS diode, the avalanche current is typically one tenth of the peak pulse surge current rating, and the breakdown voltage is typically one half of this rating.

The SMDJ33 diode series provides superior protection for sensitive electronic components with its low capacitance, low leakage, and fast response time. This diode series is also capable of providing protection from transients that can occur due to inductive and capacitive load switching, lightning, electrostatic discharge, and other electrical transients. The device features high surge current ratings and reverse breakdown voltage ratings, making them ideal for use in a variety of applications.

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