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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),Cut Tape (CT)
- 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-E3/TR is a fast avalanche rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features an average forward current of 1.5 A and a maximum repetitive peak reverse voltage of 800 V. The device utilizes a glass passivated pellet chip junction within a low-profile SMA (DO-214AC) surface-mount package. Key electrical characteristics include a maximum reverse recovery time of 120 ns, a typical thermal resistance from junction to lead of 25 °C/W, and a maximum operating junction temperature of 150 °C.
Feature Summary
- Fast reverse recovery time with soft recovery characteristic
- Avalanche energy rating for inductive load switching applications
- Glass passivated pellet chip junction for enhanced reliability
- Low profile package suitable for automated placement
Applications
- Fast switching rectification in power supplies
- Inverters and converters
- Freewheeling diodes for consumer electronics
- Automotive electronic systems
- Telecommunication equipment
Procurement Notes
Verify the specific ordering suffix against the manufacturer's documentation to confirm compliance requirements. The E3 suffix indicates RoHS-compliant commercial grade construction. Confirm that the TR delivery mode matches the required reel diameter and base quantity for your assembly line configuration. Ensure the component meets the necessary material categorization standards for your target market.
Selection Notes
Select this component when designing circuits requiring high-voltage fast recovery performance in a compact surface-mount form factor. The 800 V rating supports applications demanding robust blocking capabilities. Consider the avalanche capability if the circuit involves inductive loads subject to sudden switch-off events. Evaluate the thermal resistance parameters to ensure adequate heat dissipation within the intended operating environment.
Part Context
This part belongs to the BYG21 series of fast avalanche SMD rectifiers produced by Vishay. The series includes variants with different voltage ratings, such as the BYG21M which offers a 1000 V rating. These components are designed to replace through-hole devices in modern surface-mount assemblies while maintaining high-speed switching performance and ruggedness for demanding power conversion tasks.
Replacement Considerations
BYG21M-E3/TR
FAQ
Is the BYG21K-E3/TR qualified for automotive applications?
No, the standard E3 version is commercial grade. Automotive qualification requires the HE3 or HM3 ordering suffixes.
What is the maximum pulse energy rating for avalanche operation?
The device can withstand a non-repetitive pulse energy of 20 mJ in avalanche mode at a junction temperature of 25 °C.
