Taiwan Semiconductor Corporation DBLS207G-T

Overview

DBLS207G-T from Taiwan Semiconductor is a 2 A, 1000 V rated standard quad bridge rectifier in DBLS package, featuring 50 A peak surge current capability, 1.15 V max forward voltage per diode at 2 A, and 2 µA max reverse leakage at 25°C - used in high-voltage AC/DC front-end stages of industrial SMPS and lighting ballasts.

For engineers reviewing the DBLS207G-T datasheet, DBLS207G-T pinout, DBLS207G-T application, or DBLS207G-T equivalent, key selection criteria include verified 1000 V repetitive peak reverse voltage (V_RRM), thermal resistance (R_θJL = 15 °C/W), moisture sensitivity level 1 compliance, UL recognition (E-326854), and RoHS/halogen-free status per IEC 61249-2-21.

Technical Context

The DBLS207G-T integrates four silicon junction diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals externally accessible. Its 1000 V V_RRM rating enables direct use with 700 V RMS line inputs, while the 50 A I_FSM supports high-energy transient suppression without external snubbers.

Thermally, the DBLS package delivers R_θJL = 15 °C/W and R_θJA = 40 °C/W, enabling 2 A continuous operation up to +125°C ambient when mounted on ≥1 cm² copper area. The device operates across –55°C to +150°C junction temperature range and meets JESD201 Class 1A whisker resistance.

Key Specifications

Pinout & Package

Package: DBLS - surface-mount molded plastic case (UL 94V-0), 4-pin single-row layout with integrated bridge topology; matte tin-plated leads, J-STD-002 solderable, 0.360 g typical weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU8K and GBU10K, the DBLS207G-T offers superior space efficiency and lower thermal resistance in a smaller DBLS outline, making it optimal for new designs prioritizing PCB area and thermal performance - not a drop-in replacement due to different pin pitch and body dimensions.

Availability

DBLS207G-T is available at Aetrix Electronics and suitable for industrial switching mode power supplies, LED driver adapters, and commercial lighting ballasts requiring stable component supply and long-term lifecycle support.

Supply support for DBLS207G-T 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 DBLS207G-T belongs to TSC's standard bridge rectifier product line, engineered for high-voltage AC/DC conversion in cost-sensitive, high-reliability power supplies where UL recognition, halogen-free compliance, and MSL-1 handling are mandatory.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) specified for DBLS207G-T?

The DBLS207G-T has a maximum repetitive peak reverse voltage (V_RRM) of 1000 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version C2103). This rating is specific to DBLS207G-T and distinguishes it from lower-voltage variants like DBLS204G-T (400 V) and DBLS206G-T (800 V). The 1000 V rating enables safe operation with 700 V_RMS AC inputs and is validated under standard test conditions per JEDEC standards.

Does DBLS207G-T meet UL safety certification requirements?

Yes, the DBLS207G-T is UL Recognized with file number E-326854, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This certification covers the device's construction, flammability (UL 94V-0 molding compound), and electrical safety for use in end equipment. UL recognition applies specifically to the DBLS207G-T variant and supports compliance efforts for North American market approvals without requiring additional component-level testing.

What is the forward voltage (V_F) specification for DBLS207G-T at rated current?

The DBLS207G-T has a maximum forward voltage (V_F) of 1.15 V per diode at I_F = 2 A and T_J = 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. Since the DBLS207G-T contains four diodes in bridge configuration, total conduction drop across the conducting pair is ≤2.3 V, directly impacting conduction loss and thermal design in the target application.

Is DBLS207G-T compliant with RoHS and halogen-free standards?

Yes, the DBLS207G-T is RoHS Compliant and halogen-free in accordance with IEC 61249-2-21, as documented in the FEATURES section of the official datasheet. These compliance statements apply specifically to the DBLS207G-T manufacturing lot and are verified through material declarations and third-party testing. The halogen-free status confirms bromine and chlorine content below 900 ppm each, supporting environmentally regulated industrial and lighting product programs.

What is the moisture sensitivity level (MSL) rating for DBLS207G-T?

The DBLS207G-T has a moisture sensitivity level (MSL) rating of Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/85% RH and is compatible with standard SMT reflow profiles without pre-baking. This MSL-1 classification is confirmed in the FEATURES section and applies exclusively to the DBLS207G-T variant. It reduces manufacturing complexity and eliminates time/cost associated with dry-packaging or floor-life tracking.