1.5KE18A-B

Voltage - Clamping (Max) @ Ipp:	25.2V
Supplier Device Package:	DO-201
Package / Case:	DO-201AA, DO-27, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	60.3A
Series:	1.5KE
Voltage - Breakdown (Min):	17.1V
Voltage - Reverse Standoff (Typ):	15.3V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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TVS- Diodes: 1.5KE18A-B

A Transient Voltage Suppressor diode, often referred to as a TVS diode, is an electronic device that is used to protect circuits from over-voltage and to limit the amount of current that flows through them. TVS diodes can either be incorporated into a circuit or added as an external component. The 1.5KE18A-B is one of many such devices commonly used for circuit protection.

Application Field

The 1.5KE18A-B is designed to protect a circuit from damage caused by voltages of up to 400V. It is a bidirectional diode, meaning that it can protect against positive and negative voltage transients. As a result, it is well suited for applications such as ESD protection, EMI filtering, and surge protection. It can also be used to protect sensitive electronic equipment from damage due to power surges, such as the kind caused by lightning strike.

Working Principle

TVS diodes work by providing a low impedance path for high voltage transients. When a surge of voltage flows through the diode, the diode provides a short circuit path for the voltage, thus preventing it from damaging sensitive electronic components in the circuit. The TVS diode also has a built-in current limiter that prevents the current from exceeding the specified level, thus protecting the circuit from overload.The 1.5KE18A-B is designed with a high power handling capability, allowing it to handle large transients without failure. It is also rated for high-frequency operation, meaning that it can provide protection from fast-moving transient signals. The diode is designed for bidirectional protection, meaning that it can protect against positive and negative transients, providing reliable protection in double-sided boards.

Conclusion

The 1.5KE18A-B is a reliable, high-performance TVS diode designed for circuit protection against transients of up to 400V. It offers bidirectional protection, meaning that it can guard against both positive and negative voltage transients, and provides a low-impedance path for high voltage transients. The diode is also rated for high-frequency operation, allowing it to provide protection from fast-moving transient surges. The 1.5KE18A-B is a great choice for ensuring the long-term protection of sensitive electronic circuits.

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