DSL04-022SC6

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Transient voltage suppressors (TVS) are the first line of defense against electrical over-voltage transients. They protect the electronic circuit from over-voltage transients that can be caused by surge currents, lightning, or electrostatic discharge (ESD). The DSL04-022SC6 is a unidirectional Transient Voltage Suppressor Diode (TVS-Diode) designed to protect sensitive electronics from transient voltages.

Application Field

The DSL04-022SC6 is mainly used for working with consumer products. A consumer electronics device, such as a cell phone, is a part of everyday life. It is susceptible to electrical transients from lightning and ESD. With the DSL04-022SC6, the device will be protected since it can withstand high currents and voltages, and it can provide rapid clamping response. Also, DSL04-022SC6 could be used in automotive applications like passenger safety belt control modules and central door locking systems, that require high reliability and stable performance.

Working Principle

The DSL04-022SC6 is essentially a diode that has an avalanche breakdown voltage of 22V. It is constructed of a silicon avalanche diode, a parasitic capacitance between the anode and cathode, and an internal series resistance. When an external surge current passes through the diode the capacitor discharges and the internal resistance reduces the clamping voltage. The internal resistance is an important parameter that influences the device’s clamping capability.

Once the protection voltage of the DSL04-022SC6 is exceeded a current pulse flows and the diode enters the avalanche breakdown region. This process causes the diode to switch on, which in turn limits the voltage applied to the protected circuit. After the surge current has been attenuated, the diode switches off and the device returns to its non-conductive state. The clamping voltage of the diode is determined by the breakdown voltage and internal series resistance.

In summary, the DSL04-022SC6 is an effective and reliable TVS-Diode, designed to protect components from transient voltage that can come from lightning, electrostatic discharge, and other environmental sources. Its fast response time and low clamping voltage makes it suitable for use in portable consumer electronics, automotive applications, and other high-reliability electronic devices.

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