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Product Detailed Parameters
- Description：DIODE AVALANCHE 400V 3A SOD64
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：3A
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 9 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：100 ns
- Current - Reverse Leakage @ Vr：1 µA @ 400 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：SOD-64, Axial
- Supplier Device Package：SOD-64
- Operating Temperature - Junction：-55°C ~ 175°C
- Grade：-
- Qualification：-
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Overview
The BYW172G is a fast avalanche sinterglass diode manufactured by Vishay General Semiconductor - Diodes Division. It features a SOD-64 package with plated axial leads and offers a maximum repetitive peak reverse voltage of 400 V. The device supports an average forward current of 3 A and a peak forward surge current of 100 A. Electrical characteristics include a maximum forward voltage of 1.5 V at 9 A, a maximum reverse recovery time of 100 ns, and a non-repetitive reverse avalanche energy rating of 20 mJ. The junction temperature range spans from -55 °C to +175 °C.
Feature Summary
- Glass passivated junction for high reliability
- Hermetically sealed SOD-64 package
- Soft recovery characteristics
- High pulse current capability
Applications
- Fast rectification in switch-mode power supplies (SMPS)
Procurement Notes
Verify the specific ordering code BYW172G-TR against the manufacturer's documentation to confirm tape and reel specifications. Ensure that the 400 V reverse voltage rating aligns with the circuit requirements. Confirm compliance with environmental standards as defined in the product material categorization section of the datasheet.
Selection Notes
Select this component when a 400 V blocking voltage and 3 A continuous current are required in a compact SOD-64 form factor. Consider the 100 ns reverse recovery time for high-frequency switching applications. Evaluate thermal resistance values based on lead length and PCB spacing to ensure operation within the specified junction temperature limits.
Part Context
This part belongs to the BYW172 series of fast avalanche sinterglass diodes, which includes variants with different reverse voltage ratings such as the BYW172D (200 V) and BYW172F (300 V). All models share the same SOD-64 package and 3 A average forward current capability, differing primarily in their breakdown voltage specifications.
Replacement Considerations
Direct substitutes within the same series include BYW172D and BYW172F if lower voltage ratings are acceptable. Verify package compatibility and electrical parameters before substitution.
