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Product Detailed Parameters
- Description：DIODE AVAL 800V 1.5A DO214AC
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：800 V
- Current - Average Rectified (Io)：1.5A
- Voltage - Forward (Vf) (Max) @ If：1.6 V @ 1.5 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：120 ns
- Current - Reverse Leakage @ Vr：1 µA @ 800 V
- Capacitance @ Vr, F：-
- Mounting Type：Surface Mount
- Package / Case：DO-214AC, SMA
- Supplier Device Package：DO-214AC (SMA)
- Operating Temperature - Junction：-55°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The BYG21K-M3/TR3 is a Fast Avalanche SMD Rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features an SMA (DO-214AC) package and is designed for high-speed switching applications. Key electrical parameters include a maximum repetitive peak reverse voltage of 800 V, an average forward current rating of 1.5 A, and a peak forward surge current capability of 30 A. The device exhibits a fast reverse recovery time of 120 ns and a maximum instantaneous forward voltage of 1.6 V at 1.5 A. It supports a pulse energy in avalanche mode of 20 mJ and operates within a junction temperature range of -55 °C to +150 °C.
Feature Summary
- Fast reverse recovery time with soft recovery characteristics
- Controlled avalanche characteristics for inductive load switching
- Glass passivated pellet chip junction
- Low reverse current leakage
Applications
- Fast switching rectification of power supplies
- Inverters and converters
- Freewheeling diodes for consumer electronics
- Automotive systems
- Telecommunication equipment
Procurement Notes
Verify the specific ordering code suffix against the manufacturer's documentation to confirm compliance requirements. The M3 suffix indicates halogen-free and RoHS-compliant commercial grade material categorization. Confirm that the TR delivery mode matches the required reel specifications for automated placement processes.
Selection Notes
Select this component when a low-profile surface mount rectifier with controlled avalanche capabilities is required. Ensure the circuit design accommodates the 800 V reverse voltage rating and the 1.5 A average forward current limit. Verify thermal management strategies align with the specified thermal resistance values for the intended ambient temperature conditions.
Part Context
This part belongs to the BYG21 series of Fast Avalanche SMD Rectifiers from Vishay. The series includes variants with different voltage ratings, such as the BYG21M rated for 1000 V. These components are engineered for general-purpose rectification in demanding environments, offering reliability through glass passivation and robust mechanical construction suitable for automated assembly lines.
Replacement Considerations
The BYG21M-M3/TR3 serves as a direct substitute within the same series, providing identical physical dimensions and electrical performance except for a higher maximum repetitive peak reverse voltage rating of 1000 V compared to the 800 V rating of the BYG21K variant.
