GBL08-M3/51

Overview

The GBLA08-M3/51 is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It utilizes the GBL surface-mount package and is rated for a maximum repetitive peak reverse voltage of 800 V. The device supports an average forward rectified current of 4 A per leg. Key electrical characteristics include a maximum RMS diode current of 6 A, a peak non-repetitive surge current capability of 200 A at 8.3 ms single half-sine wave, and a maximum DC blocking voltage of 800 V. The component operates within a junction temperature range of -55°C to +175°C and features a low forward voltage drop typical of high-efficiency silicon bridge rectifiers.

Feature Summary

• High thermal stability with a maximum junction temperature rating of 175°C
• Surface-mount GBL package design for automated PCB assembly
• Robust surge current handling capability for transient protection

Applications

• AC-DC power supply input stages
• Bridge rectification in industrial control systems
• General-purpose DC power conversion circuits

Procurement Notes

Verify the exact part number suffix against official Vishay documentation, as variants such as GBLA08-E3/45 or GBLA08-M3/45 exist with differing current ratings (3A vs 4A). Confirm RoHS compliance status and specific packaging quantities directly with authorized distributors. Ensure the selected variant matches the required 4A continuous current specification for the target application.

Selection Notes

Select this component when a 800V reverse voltage rating and 4A continuous current are required in a compact surface-mount form factor. Compare against through-hole alternatives if higher thermal dissipation is needed. Verify that the GBL package footprint aligns with the PCB layout constraints and that the 175°C junction temperature rating meets the environmental operating conditions of the final equipment.

Part Context

This component belongs to the Vishay GBL series of single-phase bridge rectifiers. The 'M3' suffix typically denotes lead-free termination and RoHS compliance. The '51' suffix often indicates specific tape-and-reel packaging configuration. This series is designed for general-purpose rectification applications requiring reliable performance in space-constrained designs.

Replacement Considerations

Direct substitutes may include other Vishay GBL series parts with matching 800V/4A ratings, such as GBL08-M3/45 if packaging differences are acceptable. Cross-brand replacements must match the 800V VR, 4A IF(AV), and GBL package dimensions. Verify pinout compatibility and thermal resistance characteristics before substitution.