3KP7.5

Voltage - Clamping (Max) @ Ipp:	13.55V
Supplier Device Package:	P600
Package / Case:	P600, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	3000W (3kW)
Current - Peak Pulse (10/1000µs):	232.6A
Series:	3KP
Voltage - Breakdown (Min):	7.89V
Voltage - Reverse Standoff (Typ):	7.5V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

Transient Voltage Suppressor (TVS) diodes are electrical components specialized in preventing damage in electronic circuits, and their hallmark is the ability to absorb and dissipate considerable amounts of electrical energy. Here we will discuss the application field and working principle of TVS diodes 3KP7.5.

Application Field

TVS diodes 3KP7.5 are typically installed in circuits that require protection from high voltage transient such as surges and spikes. These include automotive circuits where high voltage transients are generated during switching power converter applications, power lines, and in personal computers and peripherals. The 3KP7.5 diode is also used to protect communications and networking equipment, industrial equipment, medical, and communication systems from extreme voltages which could cause electrical glitches and permanent damage to the sensitive systems.

Working Principle

TVS diodes like the 3KP7.5 are based on a Zener diode and they work on the principles of avalanche breakdown and Zener breakdown. The device is designed to allow current to pass through it in normal operation until a threshold voltage is reached. Once the threshold voltage is reached, the diode rapidly responds by clamping the applied voltage to a known safe level.The 3KP7.5 diode uses a combination of Zener and Avalanche breakdown to provide the desired levels of protection against transient spikes and surges. The Zener breakdown occurs at low voltages and requires a Zener diode with a large PN junction in order to dissipate the current. Avalanche breakdown occurs at high voltages and requires a PN junction with a narrow width. This allows current to be dissipated quickly when the threshold voltage level is reached.When a transient voltage is present, the 3KP7.5 diode rapidly responds and shunt the current away from the protected circuit, preventing damage to the circuit components. The device also provides noise suppression and EMI filtering.

Conclusion

TVS diodes like the 3KP7.5 are essential components for protecting sensitive electronic circuits from damage caused by transient voltage spikes and other high voltage transients. They are used in automotive applications, power lines, computer and communication systems, and many other applications where sensitive electronics need to be protected from overvoltage. The device works on the principles of Zener and Avalanche breakdown and quickly responds to transient spikes, preventing damage to the protected circuits.

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