1.5KE100AHB0G Circuit Protection

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The 1.5KE100AHB0G is a high power uni-directional TVS (transient voltage suppressor) diode that’s most commonly used in consumer electronics and communications systems. It is designed to protect sensitive components and circuits from high voltage transients, or momentary power surges, which are typically caused by electrostatic discharge events, lightning strikes, and other sources of electrical over-voltage.

The diode consists of an N-type semiconductor substrate (silicon), and the active region is composed of multiple Silicon Carbide (SiC) avalanche breakdown p-n junctions. The SiC p-n junction increases the device’s power handling and thermal rating, making it capable of handling higher surge energy than an equivalent diode constructed solely from Silicon.

The 1.5KE100AHB0G is designed to protect circuits up to a maximum pulse power of 1000 watts. The device can safely clamp surge voltages up to 80 volts. The maximum repetitive peak reverse voltage (VRRM) is 100 volts, and the maximum rated device peak forward surge current (IFSM) is 1500 Amps.

To prevent possible device malfunction, the device should be installed at a location where the maximum surge peak voltage will not exceed the rated VRRM. The device should also be protected against multiple conduction failures, which might occur when connected in parallel with other similar devices.

The key applications for the 1.5KE100AHB0G include: cellular phones, laptops, telecom systems, industrial equipment, household appliances, automotive systems, CATV, data communication equipment, printing machines, UPS, alarm systems, and consumer electronics. It can also be used in a wide range of other applications where over-voltage protection is needed.

In operation, the device acts as a clamp to limit surge voltage transients. Voltage transients are clamped by allowing the SiC P-N junctions of the diode to conduct large currents instantaneously. This quick dissipation of energy helps to protect the device and the circuit.

The 1.5KE100AHB0G offers excellent protection against lightning strikes, electrostatic discharges, and other high voltage transient sources; thus providing a reliable solution for high power surge protection devices. Additionally, due to its small size and low power consumption, it is easy to incorporate into a variety of systems.

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