1.5KE13ATR Circuit Protection

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Transient Voltage Suppressor diodes (TVS) protect sensitive electrical and electronic devices from overvoltage transients. Most are stand-alone devices, but some are integrated into other components such as CMOS logic gates. Specialized diodes, such as the 1.5KE13ATR, are designed to protect specific applications or devices. It is important to understand the 1.5KE13ATR’s field of application and working principle.

The 1.5KE13ATR has a multilayer construction and goes into avalanche breakdown when the voltage on one of its terminals exceeds the rated breakdown voltage. This breakdown results in an avalanche conduction which absorbs transient energy and protects the application. The TVS diode’s overvoltage protection is achieved by absorbing the overvoltage transient and quickly discharging it into the circuit’s ground.

The 1.5KE13ATR is a low-capacitance, low-clamping voltage diode ideal for protecting terminals and circuits subject to multiple overvoltage transients as found in telecom and datacom applications. This low-profile diode also provides reliable over-the-top protection for ±12V supplies and ±15V supplies in differential pairs. Its fast response time of under 5 ns, low clamping voltage of 25V, and low capacitance of 100 pF make it an ideal choice for surge protection in high-speed applications.

The 1.5KE13ATR is also highly suitable for applications in which several protection points are needed, such as various board-level designs, especially in telecom applications. Its small footprint helps to minimize the board space needed for a given device or application. The 1.5KE13ATR is also useful in medical equipment, as it offers circuit protection against leakage current, overvoltage transients, and electrostatic discharge.

The 1.5KE13ATR’s working principle is based on a drift region which is designed to withstand a certain amount of voltage without sustaining any current through it. When the voltage on one of its terminals surpasses the breakdown voltage of the diode, a current passes through it. This current then jumps to a higher value and the voltage across the diode snaps back and is discharge to ground, effectively protecting the application from the overvoltage transient.

In conclusion, the 1.5KE13ATR is a low-profile, low-capacitance TVS diode suitable for protecting terminals and circuits subject to multiple overvoltage transients. Its fast response time, low clamping voltage, and low capacitance make it an ideal choice for surge protection in high-speed applications as well as for protecting board-level designs and medical equipment. Understanding the 1.5KE13ATR’s field of application and its working principle are essential for making the best use of this specialized TVS diode.

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