CD214B-T18ALF

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The CD214B-T18ALF is a member of the TVS – Diodes family. This diode is a “Transil” product, part of STMicroelectronics’ family of Transient Voltage Suppressor (TVS) and diode products. This product is a “Bi-Directional” diode, meaning it can conduct and dissipate electrical current in both directions. It is used to protect sensitive electronic components from a surge or transient voltage caused by nearby lightning strikes, motor starts, or other high current/voltage sources.

The STMicroelectronics’ Transil family offer a complete range of automotive-grade and industrial-grade devices, offering protection against overvoltage transients. The CD214B-T18ALF is a small and efficient surface-mount device designed for use as overvoltage protection in portable designs, computers, A/V equipment, and automotive applications. This diode is an ideal choice for automotive applications, featuring a rated junction operating temperature of up to 175°C. It also has a relatively low leakage current at just 5 nA with reverse applied voltages from 6 V to 18 V.

The CD214B-T18ALF includes there primary protection functions which are:

• An active clamping circuit which limits the peak current
• A Zener diode which clamps the voltage
• A temperature-compensated sense resistance which adjusts the clamp voltage for varying temperatures

The active clamping circuit in the CD214B-T18ALF provides instant protection against over-voltage transients. It limits their peak current by providing the energy-absorbing action of a resistor and the snubbing action of a Zener diode. The temperature-compensated sense resistance ensures that the peak current is limited to the required levels, ensuring that damage to sensitive devices is avoided. This feature is especially important in automotive applications, as well as other high-temperature applications.

The CD214B-T18ALF is an efficient and reliable diode for protecting sensitive electronics from over-voltage transients. It provides active clamping, a Zener diode, and a temperature-compensated sense resistance for superior protection. It is designed for use in automotive and other temperature-sensitive applications, and is an excellent choice for overvoltage protection. Combined with STMicroelectronics’ complete range of products, the CD214B-T18ALF provides an excellent solution for protecting sensitive electronic devices from damaging over-voltage conditions.

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