1.5KE82HE3/73

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TVS - Diodes

Transient voltage suppressors (TVS) diodes are semiconductor devices that act as protectors for electrical circuits against sudden, large surges of electrical current. The 1.5KE82HE3/73 diode is a type of TVS diode capable of clamping voltage at a specified value and limiting the current that can pass through it. TVS diodes are made of either a Zener diode or a voltage-variable breakdown sensor circuit.

Application Field

Common application areas for the 1.5KE82HE3/73 diode are automotive electronics, communication equipment, computers and power supplies. Automotive electronic control units (ECUs) are particularly sensitive to voltage spikes from the power supply and require a TVS diode to protect against electrical damage. There is also a need for TVS diodes in satellites, high-speed optical networks and any electronic system where signal integrity is paramount.

Working Principle

TVS diodes are usually connected anti-parallel to the electrical lines they are protecting. When a high voltage or current spike arrives, it causes a low-impedance path through the junction of the diode, reducing the spike voltage. The voltage clamp of the 1.5KE82HE3/73 diode is in the range of 62 V to 88 V with a peak current of 3000 A, meaning that it can effectively suppress even the most demanding of surges.

The 1.5KE82HE3/73 diode is also designed to withstand repetitive surges. Its typical forward-voltage drop of <= 0.5 V when conducting keeps power losses to a minimum, while the close breakdown voltage specification of ±6 V ensures that any surge voltage is quickly clamped. This makes the 1.5KE82HE3/73 ideal for use in high surge environments or in applications where multiple surges are likely to occur.

Conclusion

The 1.5KE82HE3/73 TVS diode has a number of advantages as a surge protector. Its wide voltage clamp range and low forward-voltage drop minimize losses while providing effective protection for electronic systems. It is also designed to survive multiple surges, making it ideal for applications where there is a high risk of surges occurring.

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