SMAJ14A Circuit Protection

Series:	SMAJ
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Zener
Unidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	14V
Voltage - Breakdown (Min):	15.6V
Voltage - Clamping (Max) @ Ipp:	23.2V
Current - Peak Pulse (10/1000µs):	17.2A
Power - Peak Pulse:	400W
Power Line Protection:	No
Applications:	General Purpose
Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AC, SMA
Supplier Device Package:	DO-214AC (SMA)

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SMAJ14A TVS Diodes

TVS diodes, or transient voltage suppressors, are semiconductor devices that protect against transient voltages, which are spikes or surges in electrical current. The SMAJ14A is a type of TVS diode, specifically designed for protecting against electrical surge spikes in high power applications. Its low capacitance and low power dissipation make it well suited for environments where power dissipation needs to be minimized.

SMAJ14A Applications

The SMAJ14A TVS diode is used in high-power applications to protect against transient voltage surges and overvoltage transients. It is often used in situations where the power dissipation needs to be kept to a minimum, such as in battery powered devices. It can also be used in switch mode power supplies, automotive equipment, consumer electronics, and industrial control systems.

Working Principle of TVS Diodes

TVS diodes work by controlling the flow of electric current. When the input voltage reaches a certain level, the TVS diode conducts current to limit the voltage across the protected circuit. The excess voltage then dissipates as heat. This helps to prevent the destruction of sensitive electronics.The SMAJ14A TVS diode is designed to limit voltages up to 14V at currents up to 9A. The device has a low capacitance, making it suitable for power supply filtering, overvoltage protection, and EMI/RFI suppression. The SMAJ14A also has a high surge capacity with stand-off voltages from 5V up to 170V.

Benefits of SMAJ14A

The SMAJ14A offers several benefits for high power applications. It has a very low power dissipation, which helps to reduce the amount of heat generated. This also helps to reduce the risk of damaging sensitive electronic components. Additionally, the device has a low capacitance, allowing it to filter frequencies that may have frequencies up to 500MHz.The SMAJ14A also has a low stand-off voltage which makes it ideal for protecting against overvoltage transients. Additionally, it has a high surge capacity which allows it to absorb up to 400W of peak power. This makes it suitable for environments with high power transients.

Conclusion

The SMAJ14A is an ideal TVS diode for high power applications where power dissipation and EMI/RFI suppression needs to be kept to a minimum. Its low capacitance and low stand-off voltage make it suitable for transient protection and overvoltage protection. Additionally, its high surge capacity makes it suitable for environments with high power transients.

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