DBLS154G-T

Bridge Rectifier Overview

The DBLS154G-T is a single-phase bridge rectifier from Taiwan Semiconductor, rated for a maximum average forward current of 1.5 A and a repetitive peak reverse voltage of 400 V. It utilizes the DBLS surface-mount package with matte tin-plated leads. Key electrical parameters include a peak forward surge current of 50 A, a maximum junction temperature of 150 °C, and a typical forward voltage of 1.1 V at full load. The device features low reverse leakage current of 2 µA at 25 °C and operates within a storage temperature range of -55 °C to +150 °C.

Bridge Rectifier Feature Summary

• Glass passivated chip construction provides reliable low-cost performance and high surge current capability.
• Molded plastic case meets UL 94V-0 flammability rating and complies with RoHS directives.
• Matte tin plated leads are solderable per J-STD-002 standards and meet whisker test requirements.

Bridge Rectifier Applications

• Switching mode power supplies (SMPS)
• Power adapters
• Lighting applications

Bridge Rectifier Procurement Notes

Verify the specific ordering code against the datasheet to ensure correct voltage rating and packaging configuration. Confirm that the 'T' suffix indicates tape and reel packing of 1,500 units per reel. Check for compliance with moisture sensitivity level 1 per J-STD-020 during handling. Ensure the component meets halogen-free requirements according to IEC 61249-2-21 if required by your manufacturing process.

Bridge Rectifier Selection Notes

Select this component when a 400 V blocking voltage is required for AC-to-DC conversion in compact designs. The DBLS package suits automated surface-mount placement processes. Consider the thermal resistance values for heat dissipation planning in enclosed spaces. Verify that the 1.5 A continuous current rating aligns with the application's load requirements under expected ambient temperatures.

Bridge Rectifier Part Context

This part belongs to the DBLS15xG-T series, which covers voltage ratings from 400 V to 1000 V. The '4' in the model number specifically denotes the 400 V variant. Other series members include the DBLS155G-T (600 V), DBLS156G-T (800 V), and DBLS157G-T (1000 V). All share identical mechanical dimensions and electrical characteristics except for the reverse voltage rating.

Bridge Rectifier Replacement Considerations

Direct substitutes must match the 1.5 A current, 400 V reverse voltage, and DBLS package footprint. Verify lead pitch and body dimensions for PCB compatibility. Ensure replacement parts also offer glass passivation and similar thermal resistance characteristics.