| Allicdata Part #: | A190RN-ND |
| Manufacturer Part#: |
A190RN |
| Price: | $ 50.83 |
| Product Category: | Discrete Semiconductor Products |
| Manufacturer: | Powerex Inc. |
| Short Description: | DIODE GEN PURP 800V 250A DO205AB |
| More Detail: | Diode Standard, Reverse Polarity 800V 250A Chassis... |
| DataSheet: |  A190RN Datasheet/PDF |
| Quantity: | 1000 |
| 30 +: | $ 45.75290 |
| Series: | -- |
| Packaging: | Bulk |
| Part Status: | Active |
| Diode Type: | Standard, Reverse Polarity |
| Voltage - DC Reverse (Vr) (Max): | 800V |
| Current - Average Rectified (Io): | 250A |
| Voltage - Forward (Vf) (Max) @ If: | 1.3V @ 250A |
| Speed: | Standard Recovery >500ns, > 200mA (Io) |
| Capacitance @ Vr, F: | -- |
| Mounting Type: | Chassis, Stud Mount |
| Package / Case: | DO-205AB, DO-9, Stud |
| Supplier Device Package: | -- |
| Operating Temperature - Junction: | -40°C ~ 200°C |
| Base Part Number: | A190R |
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< html >The A190RN multi-voltage, ultrafast recovery rectifier is one of a family of devices that offer very low conduction losses when used in high frequency switching power applications. Designed to offer superior performance compared to other rectifiers such as electro-mechanical relays, the A190RN offers a number of unique features and benefits that make it an ideal choice for applications such as power over Ethernet (PoE), DC/DC converters and high speed data switches. In this article we will look at the application fields and working principles of the A190RN rectifier.
A190RN Application Fields
The A190RN can be used in a variety of applications, including switching power supplies and power over Ethernet (PoE) systems. In PoE systems, the rectifier can be used to protect equipment from voltage surges and also ensure that the device is adequately protected from reverse current. In addition, it can be used in DC/DC converters, high speed data switches and in other high frequency applications where superior performance and low conduction losses are desired. The A190RN is also suitable for use in automotive applications such as charging systems, ignition systems and control systems.
A190RN Working Principle
The A190RN operates on a simple principle. The device consists of four diodes connected in a bridge configuration, each of which carries current in one direction only. When a voltage is applied, the two diodes that are carrying the current will conduct, while the two other diodes will be non-conducting. This allows current to flow in one direction only, and prevents reverse current flow, limiting losses due to power switching. The device is also very efficient, since it has a low voltage drop across it.
The A190RN also offers a high level of protection against voltage and current surges. It has an ultrafast soft-recovery feature, which prevents damaging voltage spikes during switching. In addition, the device provides an additional level of protection through its low on-voltage characteristic, which helps to reduce dissipation due to voltage transients.
The A190RN is a highly efficient and cost effective solution for high frequency applications where superior performance and low conduction losses are desired. Its simple construction and design make it easy to use, and its low voltage drop and high surge protection capability make it an attractive choice for a wide range of applications.