TP1.5KE43A Circuit Protection

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TVS - Diodes are electronic components used to protect sensitive electronic components from being damaged from high voltage electrical transients. The TP1.5KE43A is a unidirectional Transient Voltage Suppressor (TVS) diode that has been designed for use in permissive overvoltage applications and environments. It is designed to respond to voltages much higher than the 5V operating range of many electronic components. It is especially suited to protect sensitive components from transient overvoltages caused by lightning, power surges, inductive loads, and so forth.

The TP1.5KE43A is a bi-directional transient voltage suppressor diode. This means it is capable of handling either a positive or negative transient overvoltage. The diode has an on-state resistance of only 0.4 ohms and an off-state resistance of greater than 10M ohms. This diode works by quickly responding to transient overvoltages and shunting the excess current away from the protected components to ground. It then returns to its off-state resistance when the transient has passed. This provides fast, reliable overvoltage protection to sensitive components.

The TP1.5KE43A is used in a variety of applications where transient overvoltage protection is a must. Examples include medical and industrial equipment, telecommunications, automotive and aerospace applications. The diode has a peak pulse power rating of 1500 watts and is rated as UL recognized, meaning it has passed the ULs stringent quality and safety standards. It is also RoHS compliant, meaning it meets all the latest requirements and regulations for the use of hazardous materials.

The working principle of the TP1.5KE43A is fairly simple. When a high voltage potential difference is applied to the diode, it quickly responds and begins to conduct current in the opposite direction of the applied voltage. At this point, the current is quickly shunted away from the protected components to ground as the diode diverts the current. As the potential difference begins to diminish, the diode returns to its off-state resistance (greater than 10M ohms) and the protected components remain safe from harm.

In conclusion, the TP1.5KE43A is a bi-directional transient voltage suppressor diode that is used to protect sensitive electronic components from transient overvoltages caused by lightning, power surges, inductive loads, and so forth. It is rated as UL recognized and is RoHS compliant. The diode responds to voltage spikes quickly and diverts the current away from the protected components to ground. Once the voltage returns to normal, the diode returns to its off-state resistance and the protected components remain unharmed.

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