This document describes the features and characteristics of the BYT53 series ultra-fast avalanche sinterglass diodes produced by Vishay Semiconductors, including glass passivated junction, hermetically sealed package, low reverse current, soft recovery characteristics, etc. The product is suitable for very fast rectification and switching applications, such as switched mode power supplies, high-frequency inverter circuits, etc.
The BYT53 series are ultra‑fast avalanche sinter‑glass diodes offered by Vishay Semiconductors. They feature a glass‑passivated junction, hermetically sealed SOD‑57 package, low reverse current, soft recovery, and are RoHS‑compliant. The series is intended for very fast rectification and switching in SMPS, high‑frequency inverter circuits, and other high‑speed applications.
The datasheet provides mechanical data (SOD‑57 case, plated axial leads), absolute maximum ratings (reverse voltage up to 400 V, peak forward surge current 50 A), electrical characteristics (forward current 1.9 A, reverse current as low as 5 µA), and thermal resistance values. It also includes Vishay’s environmental policy statements and legal disclaimer.
| Forward current (IFAV) | 1.9 A |
|---|---|
| Reverse recovery time (trr) | 50 ns |
| Junction temperature range | -55 °C to +175 °C |
| Package | SOD‑57 sintered glass case |
| RoHS compliance | Yes, lead‑free and RoHS 2002/95/EC compliant |
The BYT53D variant is rated for a reverse voltage of 200 V.
Yes, the BYT53 series is lead‑free and complies with RoHS 2002/95/EC.
The thermal resistance is approximately 45 K/W for a 10 mm lead length.