SMAJ220

Voltage - Clamping (Max) @ Ipp:	373.8V
Supplier Device Package:	DO-214AC (SMA)
Package / Case:	DO-214AC, SMA
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	1.1A
Series:	SMAJ
Voltage - Breakdown (Min):	233.1V
Voltage - Reverse Standoff (Typ):	220V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction to SMAJ220 TVS Diode

The SMAJ220 TVS diode is a low-capacitance, high-speed ultra-protection device designed to protect sensitive electronics from over-voltage transients. It can also protect the equipment from surges and spikes in the power line. It is a unidirectional device, meaning that it only conducts currents in one direction. This feature helps to prevent the device from being damaged by transient current.

Features of the SMAJ220 TVS Diode

The SMAJ220 TVS diode offers several advantages including: low leakage current, fast response time, low stored charge, low capacitance, low-capacitance transient voltage suppression characteristics, and high peak pulse power capability. Additionally, its high peak pulse power capabilities make it suitable for protecting sensitive components from the damage caused by electrostatic discharge (ESD).

Application fields

The SMAJ220 TVS diode is used in a variety of applications, including as a surge protector in voltage sensitive electronic equipment. This includes components such as optical fiber transceivers, motor controllers, and high-speed communication circuits. Additionally, the device is commonly used in computer, telecommunications, and consumer electronic systems to protect against power surges, power supply fluctuations, and other voltage transients.

Working Principle of the SMAJ220

The SMAJ220 TVS diode works by conducting current only in one direction. When the voltage across the device exceeds its specified clamping voltage, the device becomes anode (positive voltage) oriented and starts to conduct current. As the current flows, it attempts to reduce the voltage across the diode until it reaches its “hold-off” voltage, where the current will cease to flow. When the voltage across the diode drops below its “clamp” voltage, the device becomes cathode (negative voltage) oriented and stops current flow.

Conclusion

The SMAJ220 TVS diode is a low capacitance, high-speed ultra-protection device designed to protect sensitive electronics from over-voltage transients. It is an ideal choice for applications where transient voltage protection is essential. It offers several features, such as low leakage current, fast response time, low stored charge, low capacitance, and low-capacitance transient voltage suppression characteristics. Additionally, its high peak pulse power capabilities make it suitable for protecting sensitive components from the damage caused by electrostatic discharge. The SMAJ220 is used in a variety of applications, including as a surge protector in voltage sensitive electronic equipment.

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