123NQ100R

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	100V
Current - Average Rectified (Io):	120A
Voltage - Forward (Vf) (Max) @ If:	910mV @ 120A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	3mA @ 100V
Capacitance @ Vr, F:	2650pF @ 5V, 1MHz
Mounting Type:	Chassis Mount
Package / Case:	D-67 HALF-PAK
Supplier Device Package:	D-67

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A single diode rectifier (123NQ100R) is a device that converts electrical current from alternating current (AC) to direct current (DC). It is commonly used in power supplies, where it is used to smooth waveforms and convert AC to DC. This article will discuss the application field and working principle of the 123NQ100R single diode rectifier.Single diodes rectifiers are semiconductor devices that can be found in many electrical and electronic applications. The basic structure of a diode consists of a P-type region and an N-type region. When a voltage is applied across the P-type and N-type regions, current will flow in one direction and not in the other, resulting in rectified current.The 123NQ100R single diode rectifier is designed with a low forward voltage drop, making it ideal for applications requiring a low-power operation. The device has a low reverse voltage rating, making it suitable for applications that require a low reverse voltage withstand capability. Additionally, the 123NQ100R has a good surge current capability and low leakage current, making it suitable for high-efficiency applications.The common application field of the 123NQ100R single diode rectifier includes power supplies, AC/DC converters, inverters, motor controllers, and motor starters. In these applications, the 123NQ100R can be used for rectifying, smoothing, and power conversion. The smooth DC output of the rectifier provides the exact amount of current needed and is suitable for powering control circuits and other integrated circuits (ICs). The working principle of the 123NQ100R single diode rectifier can be explained as follows. When a voltage is applied across the P-type and N-type regions, the diode will begin conducting. When the applied voltage is lower than the reverse breakdown voltage, the diode will operate in a reverse-polarity blocking mode. This means that current will not flow in the reverse direction and only flow in the forward direction. The voltage drop across the diode is a result of the junction potential between the P-type and N-type regions.When the forward voltage exceeds the junction potential, the diode will conduct in a forward-polarity mode. The forward current of the diode is proportional to the applied voltage and junction temperature. This means that the diode will operate at its optimum performance when the applied voltage is close to its rated voltage. When the junction temperature rises, the current through the diode will decrease, providing a temperature-dependent positive feedback to the overall system.Moreover, the diode can be used as a voltage clamping device to protect ICs from overvoltage conditions. In this case, the diode is operating in an avalanche conduction mode, where the current of the diode is low and the voltage is clamped to the junction potential. The diode can be used as a switch or an ideal current source to achieve rectification.To conclude, the 123NQ100R single diode rectifier is a semiconductor device used for power conversion or DC power generation. It has a low forward voltage drop and low reverse voltage rating, making it suitable for high-efficiency applications. Additionally, the diode can be used as a voltage clamp to protect connected circuits.

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