The IN5811 is an “ultrafast recovery” rectifier diode designed for high-reliability applications where failure can’t be tolerated. A rectifier diode is a semiconductor device that converts alternating current (AC) into direct current (DC). Essentially, it rectifies the alternating voltage by allowing current to flow in only one direction. When the voltage across its terminals is in the forward direction, the rectifier diode conducts current, while when the voltage is in the reverse direction, it blocks current.
Rectifier diodes are crucial components in power supply circuits because of their unidirectional property, which turns fluctuating AC voltages into steady DC voltages suitable for electronic devices. Some other key applications of rectifier diodes include:
- Battery chargers
- Signal demodulation
- DC motor drives
- Welding power supplies
- Uninterruptible power supplies
- Photovoltaic systems
- Radio frequency identification
- High voltage direct current transmission
- Audio amplifiers
As shown above, rectifier diodes; such as the IN5811, can be used a wide range of systems to ensure the delivery of stable power. This includes benign communications devices to hazardous environments where vibration, intermittent motion, or fluctuating temperatures are concerns. These applications showcase the versatility of rectifier diodes across various industries and electronic devices.
IN5811 Datasheet: Applications and Features
As indicated in the Microsemi’s IN5811 datasheet, the IN5811 rectifier diode’s features make it especially useful for military and space applications. Key features and common applications are listed in the table below.
The IN5811 is certified to the U.S. military specification MIL-PRF-19500/477, which defines the performance requirements for silicon, fast recovery, and power rectifier diodes. The specification provides four levels of product assurance (JAN, JANTX, JANTXV, and JANS) for each encapsulated device type.
IN5811: Maximum Ratings and Electrical Characteristics
The IN5811 datasheet includes important maximum ratings and electrical characteristics to ensure proper operation of the rectifier diode. It’s essential to guarantee that the component is not exposed to conditions outside its maximum ranges.
IN5811 Maximum Ratings
The IN5811 is an ultrafast recovery rectifier diode, and its electrical characteristics are listed below:
IN5811 Electrical Characteristics
IN5811: Packaging
The IN5811 is available in both leaded and surface mount metal electrode leadless face (MELF) package configurations. From the IN5811 datasheet, the package dimensions of the rectifier diode are shown below.
IN5811 Package Dimensions
IN5811 PCBA Design Essentials
The IN5811 is a versatile rectifier diode for high-reliability applications. However, some essentials must be adhered to for reliable operation and performance. It is crucial that you employ accurate schematic symbols, PCB footprints, and CAD models from a reliable source, as illustrated below.
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