CD214B-T70CALF Circuit Protection

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CD214B-T70 CALF Application Field and Working Principle

CD214B-T70 CALF is an abbreviation for Capacitor-Diode Unidirectional Transient Voltage Suppression Diode. It belongs to the class of TVS (Transient Voltage Suppression) Diodes, which are designed to protect against high overvoltage transients, typically caused by lightning, electrical surges and electrostatic discharges. The CD214B-T70 CALF is designed for protecting low voltage circuits and devices from voltage transients.

When an over-voltage transient occurs, the CD214B-T70 CALF quickly conducts the surge current away from the sensitive circuit, intern clamps the voltage at a safe level that is below the breakdown voltage of the protected circuit. The CD214B-T70 CALF features an open-ring electrode (ORE) geometry that ensures excellent thermal management, which in turn makes the diode suitable for high-reliability applications. The ORE geometry also enables a large standoff voltage, which makes the diode withstand higher voltage transients with minimal component size.

The CD214B-T70 CALF is suitable for use in a wide range of applications such as automotive, consumer electronics, telecom, data, industrial control, and many more. These applications can take advantage of the CD214B-T70 CALF\'s excellent surge capability, high bilateral peak pulse current rating, and ultra-fast surge response time. The diode also features a low capacitance of 0.9pF for a minimum voltage of 5V, which makes it highly suitable for applications that require low capacitance and fast recovery time. Additionally, the diode is RoHS compliant, AEC-Q101 qualified, and supports bi-directional transient protection.

In terms of working principle, the CD214B-T70 CALF works by detecting over-voltage transients in the protected circuit. Once the voltage reaches a certain threshold, the diode will quickly conduct the surge current away from the sensitive circuit components, therefore protecting them from electrical damage due to over-voltage. The CD214B-T70 CALF is a unidirectional device which means that it can conduct the surge current in only one direction. This makes the diode suitable for applications which are exposed to only one type of transient voltages.

In conclusion, the CD214B-T70 CALF is a highly reliable and cost-effective solution for over-voltage protection in a wide range of applications. It features excellent surge capabilities, high bilateral peak pulse current ratings, and ultra-fast response time which makes it ideal for high-reliability applications. It also features a low capacitance for a minimum voltage as low as 5V, RoHS compliance, and AEC-Q101 qualification. The diode\'s unidirectional working principle makes it suitable for applications which are exposed to only one type of transient voltage.

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