MA1.5KE43A

Voltage - Clamping (Max) @ Ipp:	59.3V
Supplier Device Package:	DO-204AR
Package / Case:	DO-204AR, Axial
Mounting Type:	Through Hole
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	25.3A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	40.9V
Voltage - Reverse Standoff (Typ):	36.8V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to TVS - Diodes

TVS (Transient Voltage Suppressors) diodes are designed to offer protection from high voltage transients or spikes from outside sources. These devices use a zener diode and a few other components inside to create an added layer of voltage protection. The general purpose of TVS diodes is to reduce voltage transients or spikes to keep electrical components from being damaged.

MA1.5KE43A : Application Field and Working principle

The MA1.5KE43A from Littelfuse is an ultra-low capacitance unidirectional TVS diode. This device is designed to provide superior protection against high voltage transients with ultra-low capacitance levels of 1.5pF max while still managing a low clamping voltage. This device is part of the industry’s first family of optically coupled TVS diodes designed to protect data lines like HDMI, DVI, and DisplayPort.MA1.5KE43A is designed to protect data lines from high-speed transients, while at the same time preventing signal interference. The MA1.5KE43A does this by clamping the voltage spike to a specific level, while still allowing the normal signal to pass through with minimal interference.The working principle of the MA1.5KE43A is fairly straightforward. When the device encounters a voltage spike, its built-in zener diode begins conducting current and clamping the voltage. As long as the maximum clamping voltage is low enough, the signal passing through the MA1.5KE43A will not interfere with the electronics that it is protecting.

Conclusion

TVS - Diodes are a vital component in almost any electronic setup. They provide a layer of protection against voltage transient, ensuring the longevity of the electronic components. The MA1.5KE43A from Littelfuse is an ultra-low capacitance unidirectional TVS diode designed to protect data lines like HDMI, DVI, and DisplayPort. It works by clamping the voltage spike to a specific level, while still allowing the normal signal to pass through with minimal interference.

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