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TVS - Diodes

1V5KE20CA application field and working principle

TVS (Transient Voltage Suppression) diodes, also known as overvoltage protection diodes, are devices that protect sensitive electronic components from damage caused by electrical transients, such as those generated by lightning, inductive switching, momentary disturbances, overvoltage, and electrostatic discharge (ESD). The 1V5KE20CA is an ultra-low capacitance TVS diode series for fast overvoltage protection of high speed data lines in automotive and industrial electronics. It provides a peak Pulse Power Rating of 20 kA (10/1000µs waveform).

The working principle of the 1V5KE20CA TVS diode is based on the breakdown voltage (BV) of the diode junction. When a transient voltage is applied to the TVS diode, the junction breaks down and the applied voltage is clamped to the breakdown voltage. This allows the TVS diode to absorb and dissipate the transient energy to protect the sensitive electronic components from becoming damaged. The main advantage of TVS diodes is that they can provide robust protection from ESD and other transient voltages without reducing the signal quality or data rate.

The 1V5KE20CA has a reverse voltage of 5.0V, a capacitance of 5pF, and a breakdown voltage of 6.3V. It is a three-terminal device, with one terminal connected to the circuit and two connected to the diode. The 1V5KE20CA is designed for surface-mount applications, and has a small footprint that allows it to be placed in tight spaces. Additionally, the 1V5KE20CA has an operating temperature range of -65°C to +150°C, and is RoHS-compliant.

The 1V5KE20CA is used in many different applications, including automotive and industrial electronics, computing, communications, and consumer electronics. It is typically used in H-bridge circuits, SERDES networks, HDDs, AC/DC converters, power supplies, and high-speed data lines. Additionally, the 1V5KE20CA is used in applications that require fast transient protection, such as automotive ethernet and high-speed data line protection.

In summary, the 1V5KE20CA is an ultra-low capacitance TVS diode series that protects sensitive electronics from transient voltages. It is used in a variety of applications, from automotive and industrial electronics to computing, communications, and consumer electronics. Its small footprint and operating temperature range make it an ideal protection solution for high-speed data lines that require fast transient protection.

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