SMAJ48CAHR3G

Voltage - Clamping (Max) @ Ipp:	77.4V
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:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	5.2A
Series:	Automotive, AEC-Q101, SMAJ
Voltage - Breakdown (Min):	53.3V
Voltage - Reverse Standoff (Typ):	48V
Bidirectional 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 SMAJ48CAHR3G TVS Diodes

The SMAJ48CAHR3G diode is one of many popular models of Transient Voltage Suppressor (TVS) diodes used in a variety of applications. This model can be used to protect a variety of circuits and electronics from surges or other overvoltage events, making them reliable solutions for applications such as power supplies, medical equipment, and television receivers.

Applications of SMAJ48CAHR3G TVS Diode

The SMAJ48CAHR3G diode can be used in a variety of applications, but its most notable use is in transient voltage suppression. Its nonlinear, bidirectional characteristics make it well-suited for use in surge protection circuits. It can be used to protect against electrostatic discharge, power line surges, and lightning events. These diodes have also been used in many medical electronics for protection against potentially harmful and destructive voltage events.

Working Principle of SMAJ48CAHR3G TVS Diode

The SMAJ48CAHR3G TVS diode works by providing a protective “clamp” to voltage beyond its voltage rating. The external environment, such as line surges or lightning events, are clamped to the breakdown voltage of the diode, protecting any downstream electronics from potentially destructive voltages. When the device is triggered, the diode conducts current in the opposite direction to that of the external momentary current. This allows the device to absorb the energy of the transient, thus protecting the downstream electronics. The SMAJ48CAHR3G TVS diode is especially effective at limiting high voltage transient events because of its high clamping voltage rating and reverse breakdown voltage. The typical breakdown voltage of this diode is 48V, and its maximum clamping voltage rating is 54V. This range allows the diode to provide reliable protection against power line surges of a magnitude of 54V or lower. The SMAJ48CAHR3G TVS diode also has a low dynamic impedance, allowing it to absorb high transient energies without affecting the voltage supply of an electronic circuit or system. This makes the diode effective at suppressing surges for wide ranges of frequencies.

Conclusion

The SMAJ48CAHR3G diode is a Transient Voltage Suppressor (TVS) diode designed with transient voltage protection in mind. Its nonlinear, bidirectional characteristics can provide reliable protection against line surges, lightning events, and other transient voltage events. Its high breakdown voltage and low dynamic impedance make it an effective device for suppressing high-frequency transient events, making it an excellent choice for a variety of protection applications.

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