SMAJ6.5HE3/5A

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Transient Voltage Suppression (TVS) Diodes are an electrical component, which have a wide range of applications. They are primarily used in protection of circuits against overvoltages caused by electrostatic discharge (ESD) or load switching transients. They are used in places where a transient voltage peak is expected. TVS diodes come with various types and ratings, one of which is the SMAJ6.5HE3/5A.

The SMAJ6.5HE3/5A is a unidirectional TVS diode in the discrete SMA package. It is designed to protect against ESD and transient overvoltages and comes with two separate diodes inside the same package. It has ESD, IEC 61000-4-2 protection of up to 8 kV contact and 15 kV air discharge, short-circuit protection, peak pulse power of 600 W (8/20 μs), and peak pulse current of 27.5 A (8/20 μs).

The SMAJ6.5HE3/5A has a wide range of applications. In automotive electronics, it can be used to protect against ESD pulses generated in the charging and switching automotive circuits. It is also used in portable consumer electronic devices such as digital cameras, PDAs, cell phones, etc. Additionally, it can be used in industrial electronics such as industrial logic circuits, communication systems, and motor power control systems. In power supplies, the SMAJ6.5HE3/5A can be used protect against transients in AC/DC power supplies, battery elimination circuits, and automotive alternator circuits.

The working principle of the SMAJ6.5HE3/5A is thermal breakdown. When an overvoltage is applied to the diode, the voltage drop across the diode increases. This causes the diode to heat up, and at a certain voltage, this heat causes the junction to thermally break down and conduct current, thus diverting the overvoltage away from the protected circuit. When the overvoltage disappears, the diode cools down, and the junction reverts back to the non-conducting state.

The SMAJ6.5HE3/5A is a versatile and reliable TVS diode, which helps protect circuits against ESD and transient overvoltages. It has a wide range of applications in automotive electronics, portable consumer electronics, industrial electronics, and power supplies. It works on the principle of thermal breakdown of the diode junction, providing an effective protection solution in a wide variety of environments.

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