SMAJ22CA-QH

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TVS (transient voltage suppressor) diodes are a type of semiconductor device specifically designed to limit voltage transients. The SMAJ22CA-QH is a 22 Volt, 5.6 Watt unidirectional & bidirectional TVS diode marketed by Central Semiconductor Corporation. It is widely used in a variety of automotive, industrial and consumer-electronic applications to protect electronic equipment and data lines from voltage transients.

The SMAJ22CA-QH is a small, surface-mountable diode that measures 2.5 mm × 1.25 mm. It offers excellent clamping performance, low leakage current, and fast response time. It is designed to be used with load elements such as motors and solenoids. The diode also offers thermal stability, as it can withstand temperatures up to 200 °C.

The SMAJ22CA-QH working principle is based on the p-n junction semiconductor structure. When a high voltage transient is applied across the diode, it rapidly switches the p-n junction into a low impedance state, thus limiting the amount of energy that can be transferred to the load. The device\'s N-channel depletion mode structure reduces the leakage current and ensures fast response time. This helps to protect electronic equipment from high voltage transients.

The SMAJ22CA-QH is useful in applications where it needs to provide protection from electric surges, such as in automotive, industrial, and consumer applications. Examples of automotive applications include protection from battery voltage transients and load dump transients. The diode is also suitable for use in consumer electronic equipment such as appliances, audio and video equipment, and STB (set-top box). Other applications for the SMAJ22CA-QH include legal metrology, instrumentation, server farms, and other areas where high-voltage transients are present.

In conclusion, the SMAJ22CA-QH is a useful and versatile TVS diode for protecting equipment from high-voltage transients. The diode’s low leakage current and fast response time help provide additional protection. It is well suited for use in automotive, industrial, and consumer electronics applications, as well as legal metrology, instrumentation, and server farms, among other areas.

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