Taiwan Semiconductor Corporation DBLS152G RDG

Overview

DBLS152G from Taiwan Semiconductor is a 1.5A, 100V repetitive peak reverse voltage (V_RRM) quad-standard bridge rectifier in DBLS surface-mount package, featuring 50A peak surge current (I_FSM), 1.10V typical forward voltage at 1.5A, and AEC-Q101 qualification option - used in AC/DC front-end stages of compact switching mode power supplies.

For engineers reviewing the DBLS152G datasheet, DBLS152G pinout, DBLS152G application, or DBLS152G equivalent, key selection criteria include V_RRM=100V, I_F=1.5A, thermal resistance R_θJL=15°C/W, moisture sensitivity level 1, and UL 94V-0 molded case compliance.

Technical Context

The DBLS152G integrates four standard silicon diodes in a single-phase full-wave bridge configuration with common-cathode/common-anode topology. Its DBLS package enables PCB space savings versus discrete diode solutions while maintaining 150°C maximum junction temperature and JESD201 Class 2 whisker resistance.

Designed for high-reliability industrial and automotive-grade power conversion, it delivers 10.3 A²s fusing rating under 8.3ms half-sine surge and supports reflow soldering per J-STD-002 with matte tin-plated leads.

Key Specifications

Pinout & Package

Package: DBLS - Surface-mount, molded plastic case with UL 94V-0 flammability rating, matte tin-plated leads, and polarity marking as indicated on device body.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bridge rectifier applications.

Compared with GBU1K and GBU2K, the DBLS152G offers superior space efficiency (DBLS footprint), lower forward voltage at 1.5A, and optional AEC-Q101 qualification - making it optimal for modern compact, thermally constrained, or automotive-qualified SMPS designs.

Availability

DBLS152G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial control power supplies requiring stable component supply and consistent parametric performance across production lots.

Supply support for DBLS152G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, rectifiers, TVS diodes, and MOSFETs.

The DBLS152G belongs to TSC's DBLS-series standard bridge rectifier family, engineered for high-density, cost-sensitive AC/DC conversion in consumer, industrial, and automotive auxiliary power applications.

FAQ

What is the peak repetitive reverse voltage rating of the DBLS152G?

The DBLS152G has a repetitive peak reverse voltage (V_RRM) rating of 100 V, as specified in the absolute maximum ratings table. This value is fixed for the DBLS152G variant and distinguishes it from other members of the DBLS151G–DBLS159G series, which range from 50 V to 1400 V. The 100 V rating ensures safe operation in low-voltage AC line or transformer-secondary applications where transient overvoltage remains within this limit.

Does the DBLS152G have AEC-Q101 qualification?

The DBLS152G itself is not automatically AEC-Q101 qualified; however, the AEC-Q101-qualified version is designated DBLS152GH per the ordering information. The "H" suffix indicates full AEC-Q101 stress testing compliance, including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. Standard DBLS152G parts lack this qualification unless explicitly ordered as DBLS152GH.

What is the forward voltage drop of the DBLS152G at rated current?

The DBLS152G exhibits a typical forward voltage (V_F) of 1.10 V per diode at I_F = 1.5 A and T_J = 25°C, as confirmed in the electrical specifications table. This value applies to each of the four internal diodes during conduction. The total bridge forward drop is approximately 2.20 V under full-load conditions due to two-diode conduction path.

What package type does the DBLS152G use, and what are its key mechanical properties?

The DBLS152G uses the DBLS surface-mount package - a compact, molded plastic case measuring 8.5 mm × 6.0 mm × 2.4 mm. Key mechanical properties include UL 94V-0 flammability rating, matte tin-plated leads compliant with J-STD-002 solderability, JESD201 Class 2 whisker resistance, and polarity marking on the device body per the marking diagram.

How does the thermal performance of the DBLS152G compare to standard GBU bridges?

The DBLS152G achieves a junction-to-lead thermal resistance (R_θJL) of 15°C/W, significantly lower than typical GBU packages (~25–30°C/W), due to its optimized leadframe design and direct thermal path to PCB copper. This allows higher power dissipation in space-constrained layouts and improves reliability in thermally demanding applications such as enclosed LED drivers or industrial power modules.