GBU10D

Overview

The GBU10D is a single-phase bridge rectifier manufactured by Diotec Semiconductor, rated for an average forward current of 10 A and a repetitive peak reverse voltage of 500 V. It utilizes standard silicon technology in a GBU package with through-hole mounting. The device supports a maximum non-repetitive forward surge current of 200 A at 50 Hz and 220 A at 60 Hz. Operating junction temperatures range from -50°C to +150°C. Typical thermal resistance values are 18 K/W (junction-to-ambient) and 2.7 K/W (junction-to-case).

Feature Summary

• Robust surge handling capability for transient protection in power circuits.
• High thermal efficiency with low junction-to-case thermal resistance.
• Wide operating temperature range suitable for demanding environments.

Applications

• General-purpose AC to DC power supply rectification.
• Industrial control systems requiring reliable bridge rectification.
• Battery charging circuits.

Procurement Notes

Verify the specific ordering suffix against official Diotec documentation to confirm the exact voltage rating. Ensure that the procurement channel provides valid RoHS compliance certificates. Confirm package dimensions match the design footprint requirements before finalizing orders.

Selection Notes

Select this component when a 500 V blocking voltage is required alongside a continuous 10 A load capacity. Evaluate the thermal management strategy based on the specified 18 K/W junction-to-ambient resistance. Ensure the circuit includes appropriate protective elements if connecting large capacitive loads to prevent exceeding surge ratings.

Part Context

This part belongs to the GBU10A through GBU10M series, which shares identical current and thermal specifications but varies in peak reverse voltage ratings. The 'D' designation specifically indicates the 500 V variant within this standardized industrial bridge rectifier family.

Replacement Considerations

Cross-reference with other manufacturers offering GBU-4 or similar through-hole bridge rectifiers rated for 10 A and 500 V. Verify pinout compatibility and ensure equivalent thermal resistance characteristics to maintain system performance.

FAQ

What is the recommended protective resistance for the GBU10D?

According to the datasheet, a protective resistance of 1.0 Ohm is recommended for the GBU10D to limit surge currents when connected to capacitive loads.

How does the surge current rating differ between 50 Hz and 60 Hz?

The device supports a peak forward surge current of 200 A at 50 Hz (10 ms pulse) and 220 A at 60 Hz (8.3 ms pulse).