SMAJ24CA Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are semiconductor devices that conduct current in only one direction and are used mainly to protect circuits from high voltage transients, such as those that may be caused by lightning, electrostatic discharge, and other sources. The SMAJ24CA (surface-mountTVS- diode) is a specifically designed for surface-mount applications. This 24V peak power TVS diode is made using Surface Mount Technology (SMT) and is ideal for protecting circuits that require a low package profile and higher current capability. Both single-line and multi-line protection applications are enabled with this component.

The SMAJ24CA is a 24V peak power TVS-diode, that consists of a ceramic body encased in an epoxy resin molded plastic package with two end-mounted leads. The component has a low package profile of less than 1.5mm with a surge current rating of 1A (at 8/20μs waveform) and a maximum current clamp (Ipp) of 24V. It has an ultra-fast response time of less than 1ns and can operate in a wide temperature range, making it suitable for high-temperature applications as well. The TVS diode is also constructed according to requirements of the Underwriters Laboratories (UL) and is certified to meet the UL 94V-0 and RoHS directives.

The working principle of the SMAJ24CA TVS-diode is that it acts as a two terminal protection device when triggered by an overvoltage transient. When an overvoltage occurs, the TVS diode turns on and conducts current until the transient voltage is reduced to a safe level. This is due to its breakdown voltage (VBR) which is typically lower than the clamping voltage (Vcl) of the device. The VBR is typically measured at a reverse voltage of 10 μA and its value depends upon the material used to make the device, as well as on the doping level of the material. In the case of the SMAJ24CA, the VBR is specified to be 22V (min) and 26.2V (max).

The SMAJ24CA TVS-diode is designed to protect sensitive circuits in a variety of applications, including automotive, computer, consumer electronics, and medical. It can be used in protection circuits of electronic components and power supplies to protect against large voltage transients, as well as to limit the excess power generated by these transients. The component is also used in high power electronic systems as a protection against electrical overshoot, as well as in communication lines to protect against static electricity that may build up and cause damage to connected system components.

In summary, the SMAJ24CA TVS-diode is an innovative and reliable component designed for surface-mount applications. It has a low package profile, good surge current rating, fast response time, and Ultra-Wide Operating temperature range making it suitable for a variety of applications. The component is UL certified and designed strictly according to UL & RoHS directives. It can be used to protect sensitive electronic components and communication lines in high power electronic systems, making it an ideal choice for protecting circuits from transient voltage disruptions.

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