Current - Peak Pulse (10/1000µs):	35.7A
Base Part Number:	SMAJ
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
Series:	TransZorb®
Voltage - Clamping (Max) @ Ipp:	11.2V
Voltage - Breakdown (Min):	7.22V
Voltage - Reverse Standoff (Typ):	6.5V
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

TVS-Diodes (Transient Voltage Suppression Diodes) are devices used to protect various systems and circuits from over-voltage disturbances, such as electrostatic discharge (ESD), electrical overstress (EOS), and surge. The SMAJ6.5CA-E3/5A is one such TVS-Diode that provides protection from over-voltage surges and is widely used in various applications.

Application Field

The SMAJ6.5CA-E3/5A can be used in a wide range of applications, including consumer electronics, automotive electronics, industrial electronics, LED lighting, telecommunication, distributing systems, and power supplies. It provides protection from electrical surges seen in a variety of scenarios, such as electrostatic discharge, EOS discharges, line transients, and switching transients.The SMAJ6.5CA-E3/5A is also ideal for various automotive applications. For example, it can be used to protect electrical and electronic systems against fast-transient over-voltages caused by engine noise, ignition system noise, and alternator spikes. It is also used to protect radio receivers and ECUs (electronic control units) from voltage spikes occurring at the switching of the power line at the on/off switching of the ignition switch or when the car is being started.In consumer electronics, the SMAJ6.5CA-E3/5A can be used to protect audio/video or home-appliance systems from over-voltage surges. It can also be used in industrial electronics, power systems, and LED lighting, where it safeguards circuits and components against line transients and other forms of ESD and EOS.

Working Principle

The SMAJ6.5CA-E3/5A is a very fast responding TVS-Diode, allowing it to protect circuits from fast-transient, voltage or current overvoltages. The SMAJ6.5CA-E3/5A is a highly efficient device, with an avalanche breakdown voltage of 6.5 V.The working principle is to absorb energy from the transient surge (voltage or current) and safely divert it to the ground. When the surge is over, the TVS-Diode returns to its normal state, allowing normal circuit operations to resume.The SMAJ6.5CA-E3/5A is constructed with a very thin PN semiconductor layer with high sensitivity. This layer is surrounded by a conductive metal casing and is connected to a cathode and an anode. The anode serves as a voltage reference, while the cathode is connected to the ground. When the surge voltage resolves and the excess charge is neutralized, the cathode is disconnected from the ground, and the PN-junction returns to its normal state, allowing normal circuit operations to resume.

Conclusion

The SMAJ6.5CA-E3/5A is a very efficient and reliable TVS-Diode, which provides excellent protection against fast-transient voltage surges. The device is versatile and is suitable for applications ranging from consumer electronics and automotive electronics to industrial electronics, LED lighting, power supplies, and more. It is a fast responding device, allowing it to protect circuits from overvoltages inside very short periods. Its working principle is based on absorbing energy from the surge to be safely directed to ground.

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