AR1PK-M3/85A

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The AR1PK-M3/85A is a rectifier diode from ROHM Semiconductor. It is part of the Automotive Grade Rectifier Diodes(AR Series) family that is suitable for automotive applications. This diode is a single-phase, glass-passivated, low-loss bridge rectifier.

Overview

The AR1PK-M3/85A has various features that make it well suited for automotive applications, such as a load current of 1A, a surge current of 1.1 A and an operating and storage temperature range of -40 °C to 125 °C. It also has a low-voltage reverse current and a low leakage current of 0.1 μA at 25 °C, making it a good choice for applications that are sensitive to high leakage current. Furthermore, it has a low-forward voltage drop of 0.594 V, allowing it to efficiently convert AC power to DC.

Application Field

The AR1PK-M3/85A is suitable for a wide range of automotive applications, such as in lighting, power management, heating/cooling systems, and engine control systems. Additionally, it can be used for general-purpose DC-DC converters and AC power control, as well as for rectifying AC power for automotive and portable devices.

Working Principle

The AR1PK-M3/85A works by allowing current to flow in one direction, but not in the other. When current flows in the forward direction, the diode can be considered to be in the “on” state. This “on” state is characterized by a relatively low voltage drop across the diode and a low resistance to current. Conversely, when current flows in the reverse direction, the diode will be in the “off” state, which is characterized by a very high voltage drop and a very high resistance to current. As a result, the diode prevents current from flowing in the reverse direction.

Conclusion

Overall, the AR1PK-M3/85A is a versatile single-phase bridge rectifier that can be used in a wide range of automotive applications. It has a range of features, such as a low-voltage reverse current, a low forward voltage drop, a low leakage current, a low-loss factor and a high surge current, which make it well suited for these types of applications. Furthermore, it works by allowing current to flow in one direction, and not in the other.

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