CD214A-T36CALF

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TVS (transient voltage suppressors) diodes are semiconductor devices used to protect sensitive electronic components from high-energy transients. The CD214A-T36CALF is a specialized, bidirectional TVS diode designed to take advantage of its unidirectional and bidirectional characteristics simultaneously. It is commonly used to provide bidirectional protection between data and logic lines. This article will explain the application field and working principle of the CD214A-T36CALF.

The CD214A-T36CALF is designed for bidirectional protection of high-speed data and logic lines, providing fast response to overvoltage transients. It features a fast, UL94 V-0 flame-retardant thermoplastic encapsulation and a UL Recognition File number. The CD214A-T36CALF is commonly used in high-speed Ethernet, CANbus, and USB applications.

The CD214A-T36CALF is an excellent choice for a bidirectional protection circuit because it features a low dynamic resistance (R_d) of 0.2Ω typical, and it offers TVS protection with both unidirectional and bidirectional characteristics. The diode can tolerate overvoltage transients up to 30V in either direction and is able to recover quickly from a transient event. The CD214A-T36CALF also has a low capacitance of 4.2pF typical, minimizing circuit disruption during a transient event.

The CD214A-T36CALF\'s working principle is based on a zener-clamper circuit. A zener diode is a special type of diode that allows current to flow in either direction, but with a constant voltage dropped across the diode when the voltage reaches the zener voltage. The CD214A-T36CALF is designed to have a zener voltage of 24V. When the input line voltage exceeds 24V, the diode will clamp the voltage at 24V, thereby protecting the components downstream from the transient. The CD214A-T36CALF also features built-in reverse voltage protection, so when the line voltage drops below -24V, the diode will clamp the voltage at -24V, thereby protecting the components downstream from the transient.

The CD214A-T36CALF is a versatile device for protecting high-speed data and logic lines from overvoltage transients. It is highly reliable and allows for bidirectional protection in a wide range of applications. It is suitable for automotive, industrial, and aerospace applications, where its quick-response and flame-retardant enclosures make it an ideal choice. Furthermore, its low capacitance and dynamic resistance offer superior performance, allowing it to provide reliable protection in the most demanding applications.

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