A187RB

Diodes - Rectifiers - Single

A187RB is a type of single rectifier diode, which are diodes used to direct current in only one direction. It is an epitaxial silicon diodes with general purpose features, used typically to rectify input voltage in applications like power supplies and other power related systems. In these applications, it regulates and controls the electric current in order to convert alternating current(AC) to direct current (DC). It has maximum repetitive peak inverse voltage (VRRM) capabilities with low reverse leakage characteristics, making it a reliable and efficient choice for many devices.

Application Field

A187RB has specific application fields due to its robust characteristics. It is used primarily for rectifying alternating current, and it is a good choice for high power devices. One such common use is in power supplies where the input voltage is rectified from AC to DC from a variety of sources, including solar cells, batteries, and mains AC power supply. It can also be used in switching mode regulators, current limiter circuits, filters, power amplifiers, linear voltage regulators, and in various light dimming circuits.

Working Principle

The working principle of A187RB single rectifier diode is simple but effective. It functions by blocking any current flow in the reverse direction. To make this happen, a small electric charge, or ‘forward bias’ is applied to the diode which ‘pins’ the diode in a conducting state. In this state, current passes through the diode, in only the forward direction. When driven in the reverse direction, the diode prevents any current flow, thus providing a means of regulating current.

For applications that require more than one diode for rectifying AC, A187RB is frequently connected in an array called a bridge rectifier. This consists of four diodes arranged in a square configuration, with the four AC power terminals connected to the four diode junctions. By doing this, current is always rectified and directed in one direction, and the output is DC.

Conclusion

A187RB single rectifier diode is a reliable, efficient, and cost-effective choice for many applications. It has great maximum repetitive peak inverse voltage (VRRM) capabilities and low reverse leakage characteristics, and can accurately rectify input voltage for power supplies and other power related systems.