P4KE27CA-E3/73 Circuit Protection

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The P4KE27CA-E3/73 is a high-efficiency, high-power unidirectional TVS (Transient Voltage Suppressor), which is designed to protect against transient overvoltage events such as ESD (Electrostatic Discharge). This device is ideal for a variety of applications, including automotive, medical, industrial, consumer, communications and computer-related applications.

The P4KE27CA-E3/73 is a unidirectional TVS which means it offers protection against negative transients, such as those that occur during ESD. The device has an response time of less than 1 ns and an operating temperature range of -55°C to +150°C. It also provides a peak power of 1500 W (8/20 μs pulse) and an avalanche energy of 24 mJ (min) when tested in a voltage range of 5.0-150V.

In operation, the P4KE27CA-E3/73 uses a varistor-type construction with a built-in avalanche diode and a calculated maximum working sparkover voltage of 50V. This device also features a low reverse current of 10μA (max) and a maximum clamping voltage of 28V. The device is constructed with a ceramic body and a hermetically sealed package.

The P4KE27CA-E3/73 is ideal for applications that require precise protection from potential damage due to ESD. Automotive, medical, industrial, consumer, communications, and computer-related applications can all potentially benefit from the P4KE27CA-E3/73’s robust design and power handling capabilities. Use of this device enables designers to protect against voltage spikes, surges, and transients, while maintaining reliable, clean power on connected circuitry.

In automotive systems, for example, the device can be used to protect external ports such as USB ports, audio ports, and diagnostic ports, from potential ESD damage. Its hermetic package ensures reliable operation in harsh environments. Similarly, in medical systems, the device can be used to protect sensitive analog and digital circuit elements from damaging overvoltages. The built-in avalanche diode ensures no additional components are required, saving valuable board space.

In general, the P4KE27CA-E3/73 is an ideal choice when a reliable, small-footprint TVS device is needed for a variety of applications. Its robust voltage-clamping capabilities, fast response time, and hermetically sealed package make it a dependable device for reliable protection against ESD and other transient overvoltage events.

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