GBS4A

Overview

The GBS4A is a single-phase bridge rectifier manufactured by Diotec Semiconductor, designed for general-purpose AC-to-DC conversion. It features an average forward current rating of 4 A and a peak repetitive reverse voltage of 400 V. The device utilizes a silicon planar die structure housed in a compact plastic encapsulation with four through-hole pins. Key electrical characteristics include a maximum forward voltage drop of 1.05 V at 2 A and a leakage current below 5 µA at rated voltage. It operates within a junction temperature range of -50°C to +150°C and supports a peak forward surge current of up to 80 A under standard half-sine wave conditions.

Feature Summary

• Utilizes a silicon planar die structure for robust performance and long-term stability.
• Encapsulated in a compact plastic housing suitable for automated assembly processes.
• Features high thermal resistance capabilities to ensure reliable operation under load.

Applications

• General-purpose power supply circuits
• AC-to-DC rectification in consumer electronics
• Industrial control systems

Procurement Notes

Verify the specific ordering suffix against official Diotec documentation to confirm exact electrical ratings, as the GBS4A series includes variants with different voltage ratings. Ensure compliance with RoHS directives and check for any REACH SVHC declarations relevant to your region. Confirm package dimensions and pin configurations match your PCB layout requirements before finalizing procurement orders.

Selection Notes

Select the GBS4A when a 4 A continuous current and 400 V blocking voltage are required in a through-hole configuration. Consider the thermal derating curves if operating above 50°C ambient temperature. Evaluate the peak surge current capability against potential inrush currents in the target circuit to ensure the component remains within safe operating limits during startup or fault conditions.

Part Context

The GBS4A belongs to the GBS series of single-phase bridge rectifiers from Diotec Semiconductor. This series is engineered for commercial and industrial applications requiring reliable rectification in a space-efficient package. The GBS series complements Diotec's broader portfolio of discrete semiconductors, offering standardized solutions for power management across various electronic equipment categories.

Replacement Considerations

Cross-reference with other manufacturers' 4 A, 400 V bridge rectifiers in similar SIP-4 packages. Verify that alternative components meet or exceed the required forward current, reverse voltage, and thermal resistance specifications. Ensure pinout compatibility and physical dimensions align with existing board layouts to facilitate direct replacement without redesign.