Taiwan Semiconductor Corporation DBLS207G C1G

Overview

DBLS207G from Taiwan Semiconductor is a 2 A, 1000 V repetitive peak reverse voltage (VRRM) standard quad bridge rectifier in DBLS surface-mount package, with 50 A peak surge current (IFSM), 1.15 V forward voltage at 2 A/25°C, and AEC-Q101 qualification available in H-suffix variant. It serves as AC-to-DC conversion core in compact off-line power supplies.

For engineers reviewing the DBLS207G datasheet, DBLS207G pinout, DBLS207G application, or DBLS207G equivalent, key selection criteria include VRRM margin for 800–1000 V line-transient designs, thermal resistance (RθJA = 40 °C/W), JEDEC-compliant lead finish, and UL 94V-0 molded case compliance for safety-critical PCB layouts.

Technical Context

This DBLS207G is a monolithic quad-diode bridge configured as single-phase full-wave rectifier with common-cathode and common-anode terminals. Its internal layout supports direct integration into high-density SMPS front-end stages without external interconnects.

Thermal performance is defined by RθJL = 15 °C/W (junction-to-lead) and RθJA = 40 °C/W (junction-to-ambient), enabling 2 A continuous operation at ≤75°C ambient when mounted on 1-inch² 2-oz copper with thermal vias. Moisture sensitivity level is J-STD-020 Level 1.

Key Specifications

Pinout & Package

Package: DBLS - Surface-mount, molded plastic case meeting UL 94V-0; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU6K and MB10F, DBLS207G uniquely combines SMT DBLS packaging, UL 94V-0/UL E-326854 compliance, J-STD-020 Level 1 moisture handling, and AEC-Q101 availability-making it optimal for certified, high-reliability, volume-manufactured power supplies.

Availability

DBLS207G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial PLC power modules requiring stable component supply across multi-year production cycles.

Supply support for DBLS207G 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, serving global industrial, computing, and consumer markets since 1979.

The DBLS201G–DBLS209G series was designed specifically for high-density, surface-mount AC/DC front-end rectification in space-constrained power supplies-emphasizing reliability, safety certification readiness, and manufacturability in automated SMT lines.

FAQ

What is the peak repetitive reverse voltage rating of the DBLS207G?

The DBLS207G has a repetitive peak reverse voltage (VRRM) rating of 1000 V. This value is explicitly specified in the Absolute Maximum Ratings table for the DBLS207G variant and defines the maximum allowable reverse voltage the device can block repeatedly without breakdown. It is validated per JEDEC test conditions and forms the basis for selecting appropriate input transient protection in off-line power designs using DBLS207G.

Does the DBLS207G have AEC-Q101 qualification?

The base DBLS207G is not AEC-Q101 qualified; however, the DBLS207GH variant-identical in all electrical and thermal specifications-is explicitly qualified to AEC-Q101. The "H" suffix denotes automotive-grade stress testing including HTGB, TC, and UHAST. DBLS207G itself remains suitable for industrial and commercial applications where automotive qualification is not required.

What is the forward voltage drop of the DBLS207G at rated current?

The DBLS207G exhibits a typical forward voltage (VF) of 1.15 V per diode at IF = 2 A and TJ = 25°C, as confirmed in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents conduction loss under nominal load. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to negative temperature coefficient of silicon diodes.

What package type does the DBLS207G use, and what are its key mechanical properties?

The DBLS207G uses the DBLS surface-mount package: a molded plastic case rated UL 94V-0, with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Its weight is approximately 0.360 g, and polarity is marked on the device body. The package outline and recommended pad layout are documented in the official Taiwan Semiconductor DBLS201G–DBLS209G datasheet revision J2103.

How does the thermal resistance of the DBLS207G affect PCB layout design?

The DBLS207G has a junction-to-ambient thermal resistance (RθJA) of 40 °C/W, measured under standard JEDEC test board conditions. To maintain TJ ≤ 125°C at 2 A continuous load, the PCB must provide sufficient copper area (e.g., ≥1 inch² 2-oz copper with thermal vias) and airflow. Layouts should avoid enclosing the DBLS207G under shields or near heat sources, as RθJA degrades significantly without adequate thermal relief.