SMDJ16CAHM6G

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TVS - Diodes - SMDJ16CAHM6G Application Field and Working Principle

Transient Voltage Suppressor diodes (TVS-Diodes) are a key component in safeguarding high-speed circuits from voltage transient pulses. The SMDJ16CAHM6G is a unidirectional 600 Watts ESD protected Television (TVS) Diode from ON Semiconductor. It offers integrated ESD protection from high-energy transients of up to 25 KV, making it a desirable solution in various electronic systems including computers, telecommunications, and industrial equipment.

The SMDJ16CAHM6G integrates several features including an internal temperature sensor, an overvoltage protection circuit, and polarity protection which all work together to protect electronic circuits from transient pulses. It also boasts superior clip response time and low leakage properties which add to its overall protection capability. The dual overvoltage protection circuit ensures that a surge voltage is prevented from exceeding a pre-selected voltage threshold, while the temperature sensor shuts down the device in the presence of an overload or short-circuit condition.

In its accepted operating range, the device can absorb and dissipate peak pulse energies of up to 600 Watts. It also has Peak power (Pkp) rating of 0.5 Watts which is considered better than any other TVS diode available in the market. The operating temperature of this diode is -55°C to +125°C and it is certified in accordance with EU RoHS 2011/65/EU Directive.

The Working Principle of the SMDJ16CAHM6G

The SMDJ16CAHM6G is a transient voltage suppressor diode that is designed to work towards protecting a device or circuit from external transient pulses. It is essentially a two-terminal electronic switching device that is used to connect or disconnect power supply to an electronic circuit. The device works on the principle of avalanche breakdown, where it dissipates the excess energy from the circuit, ensuring that the voltage does not exceed the rated threshold.

When a transient voltage surge is applied to the diode, the current flows in the diode in an avalanche breakdown process. This avalanche process causes the diode to switch to its “on” status. The “on” status allows electrons to move freely within the diode, causing a high electric field which in turn causes the electrons to avalanche into a lower energy state. This lowered energy state dissipates the energy from the circuit. When the surge current decays, the electron current in the diode also decays. Thus, the diode switches back to its “off” status, thus restoring the circuit back to its original state.

The Applications of the SMDJ16CAHM6G

The SMDJ16CAHM6G device is mostly used in high-frequency circuits or exposed to transient voltage surges. Its unique features make it suitable for a plethora of applications in computer, telecommunications, and industrial equipment. It is especially suitable for high-energy spike protection applications. The device is available in a SOD-323 package and can be mounted on PCBs. It is also used in areas such as motor controllers, automotive computers, audio systems, portable electronics, and military systems.

In conclusion, the SMDJ16CAHM6G is a unique TVS diode that offers integrated ESD protection from high-energy transients and can safely dissipation of up to 600 Watts of peak pulse energy. Its working principles and applications make it suitable for various high-frequency circuits and systems exposed to transient voltage surges.

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