GBS4M

Overview

The Diotec Semiconductor GBS4M is a single-phase silicon bridge rectifier designed for general-purpose power conversion applications. It features an average forward current rating of 4 A and a repetitive peak reverse voltage of 800 V. The device utilizes a plastic case with dimensions of 19 x 3.5 x 10 mm and weighs approximately 1.3 g, carrying a UL classification of 94V-0. Electrical characteristics include a maximum forward voltage of 1.05 V at 2 A and a leakage current below 5 µA at rated voltage. The unit supports a junction temperature range from -50°C to +150°C and offers a peak forward surge current capability of 80 A under 50 Hz half-sine-wave conditions.

Feature Summary

• High thermal stability with a wide operating junction temperature range up to 150°C
• Robust surge handling capability suitable for mains-powered circuits
• Compact plastic housing with flame-retardant UL 94V-0 classification

Applications

• General-purpose AC to DC power supply rectification
• Industrial control systems requiring reliable single-phase conversion
• Consumer electronics power adapters

Procurement Notes

Verify the specific voltage suffix (M indicating 800 V) against the target circuit requirements before ordering. Confirm that the standard bulk packaging aligns with assembly line needs. Ensure compliance with RoHS and ELV directives if required by the end product specifications. Cross-reference the recommended protective resistance values for capacitive loads to prevent exceeding surge ratings.

Selection Notes

Select this component when an 800 V blocking voltage is necessary for single-phase bridge rectification at 4 A. Consider the thermal resistance parameters for heatsinking strategies in enclosed environments. Evaluate the reverse recovery time and junction capacitance if high-frequency switching effects are relevant to the design. Compare physical dimensions against available PCB or chassis mounting space constraints.

Part Context

The GBS4M belongs to the GBS series of silicon bridge rectifiers manufactured by Diotec Semiconductor. This series covers a voltage range from 50 V to 1000 V, distinguished by their respective suffix letters. The GBS package provides a cost-effective solution for medium-current applications, balancing performance with a compact form factor suitable for various commercial and industrial electronic devices.

Replacement Considerations

Direct functional equivalents may include other 4 A, 800 V single-phase bridge rectifiers in similar through-hole packages. Verify pinout compatibility and thermal resistance characteristics when substituting. Check for identical mechanical dimensions to ensure fit within existing enclosures.