Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	30V
Current - Average Rectified (Io):	2A
Voltage - Forward (Vf) (Max) @ If:	500mV @ 2A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	400µA @ 30V
Capacitance @ Vr, F:	--
Mounting Type:	Surface Mount
Package / Case:	DO-219AB
Supplier Device Package:	Sub SMA
Operating Temperature - Junction:	-55°C ~ 150°C

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Rectifier Diodes: Application Field and Working Principle

Rectifier Diodes, otherwise known as SS23LHMHG, are a particular type of diode used primarily for rectifying alternating current (AC) voltage. This is accomplished by passing a current through the rectifier diode in only one direction. The main application of this type of diode is in controlling electrical power, where a rectifier diode can be used to convert AC to DC voltage, which is then used to power electrical loads such as motors, pumps, batteries, and electronic circuits. The use of rectifier diodes for controlling power is now a standard feature in a wide range of different industries, such as automotive and aviation.To understand the basic working principle of a rectifier diode, it is important to understand the concept of a semiconductor. A semiconductor material is one which has a very non-conductive outer shell and a highly conducting inner layer. This inner layer can be used to form electrical pathways. In a rectifier diode, the negative and positive terminals are connected to a semiconductor material, forming a P-N junction.When the power supply voltage is applied to the rectifier diode, a small hole is created in the P-N junction. This hole enables current to flow from the positive to the negative terminal. The main advantage of this type of diode is that it only allows current flow in one direction and it does not conduct in the reverse direction.The basic application field for rectifier diodes is for controlling power. This could be in a domestic circuit for charging a battery, in an industrial motor, or in a computer or electronic gadget. In all cases, the diode is controlling the amount of power and ensuring that it flows in the right direction.The nature of the rectifier diode also makes it useful for smoothing out current in relatively high powered circuits. This is known as rectification, and it is used in switching power supplies, where a pulsed voltage must be converted to a DC voltage. The diode ensures that only half of the current is rectified into DC, while the other half is half-wave rectified. This process helps to reduce heat losses and also helps to reduce EMI, as the half-wave rectified signal is much less noisy than the full-wave rectified signal.The use of rectifier diodes also extends beyond the realm of power control. A popular application of these diodes is as voltage clamping devices. The characteristic of the diode allows it to act as a ‘clamp’ on transient peaks. This means that any AC signal with a large peak can be restricted to within a certain level, ensuring that the circuit is not damaged by the electrical spike.The fact that the diode can also act as a noise suppressor in a circuit is another attractive feature of rectifier diodes. All rectifier diodes have a certain capacitive element to them, which allows them to attenuate high frequency noise signals. This is used to great effect in radio receivers, where the rectifier diode helps to keep the signal noise under control, allowing the user to receive the signal without interference.In conclusion, rectifier diodes are an essential component for a wide range of power control applications, from smoothing AC voltages to clamping high voltage transients. Their ability to act as both a noise suppressor and voltage clipper also makes them a must-have for many circuit designs.

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