STTH1202D

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The STTH1202D diode, commonly referred to as a single rectifier diode, is a small, low voltage, fast-recovery, 200V bidirectional diode. The device is manufactured using STMicroelectronics\' planar epitaxial technology and is intended for use in applications requiring high speed switching and protection from over voltage. STTH1202D comes in ROHS compliant TO-252AA packages.

The STTH1202D diode is commonly used in AC to DC conversion, voltage clamping, polarity protection, and signal clamping. In AC to DC conversion, it is used to rectify an AC signal of multiple frequencies, converting it to a DC signal. As a voltage clamp, the diode provides protection from over voltage or spikes that would otherwise damage other components in the circuit. As a polarity protection diode, it ensures the current will flow in one direction only, blocking the device from damage when connected to the wrong polarity. It is also frequently used as a signal clipper or a signal shaper, as it can rapidly cut off excess voltage from an AC signal and transmit the remaining voltage.

Due to the STTH1202D rectifier diode’s fast recovery time, it is commonly used for high frequency rectification. The device can quickly switch from ON to OFF rapidly allowing the diode to handle the high frequency inputs without compromising the quality of the output. Furthermore, its low voltage drop minimizes power loss when dealing with high frequency input signals, which results in higher efficiency.

The working principle of the STTH1202D rectifier diode is simple. When connected to a positive voltage, the anode, the N-type material of the device will be attracted to the positive charge while significantly reducing the resistance of the P-type materials. This allows a current to flow through the diode, forming a closed loop. When a negative voltage is applied to the anode, the N-type material will be repelled, increasing resistance and blocking the current. This is known as reverse bias.

The STTH1202D rectifier diode is an ideal component for applications that require a fast response time, such as chopper circuits, switch mode power supplies, and solar inverters. Furthermore, its fast recovery time, low voltage drop and low forward voltage make it suitable for use in a wide range of AC to DC conversion, polarity protection, and signal clamping applications. With its robust ROHS compliant TO-252AA package, the STTH1202D rectifier diode is an excellent choice for your low voltage, fast-recovery diode needs.

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