3KP220C-B

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Transient Voltage Suppression Diodes (TVS) is a type of semiconductor component that is designed to protect electrically powered components against voltage spikes, such as those caused by lightning strikes. The 3KP220C-B is an example of a TVS diode, and is designed specifically for use in protecting automotive ECU (Electronic Control Units).

Application Field

The 3KP220C-B has a wide range of applications in protecting ECUs from overvoltage, ranging from 12v to 48v. It offers effective protection from transients such as load dump and induction spikes, and is designed to meet ISO-7637-2 protection requirements, making it suitable for automotive electronics. The 3KP220C-B is also suitable for protecting a range of other circuit components, such as relays, polymer capacitors and microcontrollers, from large voltage spikes.

Working Principle

The 3KP220C-B works on the principle of clamping the voltage spike that is received by the ECU, and redirecting the energy of the surge to ground, thus protecting against damage to the sensitive electronics. When the voltage reaches a certain level, the TVS diode snaps into action and clamps the voltage to the desired level, allowing the circuit to continue to operate normally.

The 3KP220C-B uses a combination of different techniques that allow it to provide effective protection from transients. These include a combination of Peak Power Clamping, Dynamic Clamping and fast clamping mechanisms. These techniques are combined to provide the most effective and reliable protection from transient events. The 3KP220C-B is designed with an integrated circuit (IC) on board which allows it to actively monitor and respond to transient voltage spikes, ensuring that the ECU remains safe from damage.

Conclusion

The 3KP220C-B is a highly effective and reliable TVS diode that offers reliable protection from transients such as load dump and induction spikes to automotive ECUs and other sensitive circuit components. Its combination of Peak Power Clamping, Dynamic Clamping and fast clamping mechanisms make it suitable for a wide range of applications, up to 48 volts. The on-board IC allows the diode to actively monitor and respond to transient voltage spikes, allowing it to effectively protect sensitive components from damage.

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