SA40CHE3/73

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TVS - Diodes (Transient Voltage Suppressor or Transient Voltage Suppression Devices) are shaped like diodes and function as a form of surge protection. SA40CHE3/73 is a type of TVS - Diode and is used to provide protection in applications where electrical surges can cause damage or malfunction.

The SA40CHE3/73 is designed for applications such as power supplies, micro-processors, and communication equipment. It is typically used to reduce voltage transient disturbances below 150V peak. The device can also be used to suppress high-voltage transients such as lightning and electrostatic discharge (ESD).

The SA40CHE3/73 has a low clamping voltage, making it an ideal choice for providing a high degree of protection in sensitive electronic systems. It is a bi-directional device, meaning it can dissipate energy in both directions, protecting against transient voltages from both above and below the normal operating range. It also consists of two sub-circuitries, one that is activated by a high-voltage transient and the other activated by a low-voltage transient.

The device operates by creating a low impedance channel when a high-voltage or low-voltage transient is detected. This keeps the voltage transient from impacting the sensitive circuitry. To activate the low-voltage sub-circuit, the device must detect a voltage that is 5 to 10 volts lower than the normal operating voltage for the application. The high-voltage sub-circuit is activated when the device detects a voltage that is 20 to 30 volts higher than the normal operating voltage.

The SA40CHE3/73 also provides over-current protection for circuits it is hooked up to. It will sense when the current over a certain amount is exceeded and will either partially or completely short the circuit, effectively limiting the amount of current that can flow through it. This helps protect against dangerous overloading that could cause damage to the system.

The SA40CHE3/73 is also designed to be self-resetting. This means that once the voltage transient has been dissipated, the device will revert to its normal state. This protects the circuit from the risk of a permanent failure due to a sustained voltage transient.

The SA40CHE3/73 is a versatile and reliable device for providing protection against voltage transients and over-current situations. Its low clamping voltage and bi-directional capabilities make it well suited for use with a wide variety of applications. And its self-resetting feature ensures that the system will recover quickly and efficiently after a transient occurs.

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