SMLJ22CAE3/TR13

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TVS - Diodes

TVS or Transient Voltage Suppressor diodes offer protection against destructive voltage transients, like from indirect lightning strikes, electrostatic discharge, and high energy transients. They help to protect sensitive low voltage circuits from these types of destructive events. SMLJ22CAE3/TR13 is one such device in the series of TVS diodes.

The SMLJ22CAE3/TR13 is a low capacitance discrete unidirectional TVS diode which is designed to protect sensitive electronic components against excessive voltage levels. It is a RoHS compliant device. The electrical circuit of the diode consists of a p-type silicon semiconductor material and a cathode terminal containing a bi-directional electrode. The diode is rated for operation from -55˚C (-67°F) to 150˚C (302°F). It is available in two different packages: SMD (Surface Mount Device) and Through-Hole.

This diode has a maximum power dissipation rating of 0.5W, 3500W of peak pulse power dissipation, a peak pulse voltage, peak pulse current, and clamping voltage rating of 208V, 20A and 130V, respectively. The SMLJ22CAE3/TR13 has a low capacitance rating of 60pF. The diode\'s peak voltage occurs in a nanosecond and the time duration is less than 1nano second. With these features, the diode is suitable for use in applications like Automotive, Aerospace, and Industrial.

The operating principle of this diode is simple. When a transient voltage is applied to the diode, the diode begins to conduct and the transient is passed through the diode. The diode acts as a temporary conductive path for the current until the transient voltage dissipates. The diode is designed to conduct a certain amount of electricity, and when the current exceeds that limit, the diode begins to break down, limiting the voltage to an acceptable level. At the same time, the diode absorbs the energy of the transient voltage and dissipates it as heat. This is done to ensure that the protected circuit is not damaged.

The SMLJ22CAE3/TR13 is suitable for wide range of protection and clamping applications. Typical applications include on-board protection and EMI filtering of data buses and signal lines, as well as the protection of automotive sensors, such as airbag and camshaft sensors. It can also be used in consumer electronics, power supplies, industrial equipment, and consumer appliances.

This diode is also suitable for circuit protection when used in a negative polarity configuration. When a surge of negative voltage is applied to the diode, the diode begins to conduct and the transient is dissipated via the diode\'s low capacitance. This diode is also useful in protecting sensitive components, such as processors and nonvolatile memory devices, from voltage transients.

In conclusion, the SMLJ22CAE3/TR13 is a low capacitance discrete unidirectional TVS diode, designed to protect sensitive electronic components against excessive voltages. It offers high power dissipation and excellent general purpose protection capabilities. It is suitable for a wide range of applications including automotive, aerospace, industrial, data buses, and more. It is also useful for negative polarity protection and circuit protection. With its versatile features, the SMLJ22CAE3/TR13 is a great choice for protecting sensitive electronic components.

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