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Home > Products > Discrete Semiconductor Products > Diodes > Bridge Rectifiers

Taiwan Semiconductor Corporation DBLS205G C1G

Name: DBLS205G C1G
Brand: Taiwan Semiconductor Corporation
SKU: DBLS205G C1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DBLS205G C1G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-SMD, Gull Wing

Datasheet:: DBLS205G C1G.pdf

Description:: BRIDGE RECT 1PHASE 600V 2A DBLS

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Product details

Overview

DBLS205G from Taiwan Semiconductor is a 2 A, 600 V repetitive peak reverse voltage (V_RRM) standard quad bridge rectifier in DBLS surface-mount package, featuring 1.15 V max forward voltage at 2 A and 50 A peak surge current, widely used in AC/DC front-end stages of switching mode power supplies.

For engineers reviewing the DBLS205G datasheet, DBLS205G pinout, DBLS205G application, or DBLS205G equivalent, key selection criteria include V_RRM = 600 V, I_F = 2 A, thermal resistance R_θJA = 40 °C/W, AEC-Q101 qualification availability (via DBLS205GH variant), and DBLS package compatibility with automated SMT assembly.

Technical Context

The DBLS205G integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling AC-to-DC conversion without external interconnects. Its DBLS molded plastic package supports reflow soldering per J-STD-002, with matte tin-plated leads and UL 94V-0 rated compound.

Designed for operation across -55 °C to +150 °C junction temperature range, it delivers 10.3 A²s fusing rating under 8.3 ms half-sine surge and exhibits ≤2 µA reverse leakage at 25 °C - critical for low-power standby and high-efficiency SMPS designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - maximum non-repetitive reverse voltage the device blocks during normal operation
I_F	2 A continuous average forward current - defines steady-state power handling capability
V_F	1.15 V max at I_F = 2 A, T_J = 25 °C - directly impacts conduction loss and thermal design
I_FSM	50 A peak surge current (8.3 ms half-sine) - determines robustness against line transients and inrush
R_θJA	40 °C/W - junction-to-ambient thermal resistance under standard PCB mounting conditions
T_J max	+150 °C - maximum allowable junction temperature for reliable long-term operation
I_R	≤2 µA at V_R = 600 V, T_J = 25 °C - ensures minimal leakage in off-state, critical for efficiency

Pinout & Package

Package: DBLS - surface-mount, 4-terminal molded plastic case with gull-wing leads, UL 94V-0 rated, 0.360 g typical weight, polarity marked on top surface.

Pin/Terminal	Circuit Role	Design Meaning
AC1	Input AC terminal 1	One of two alternating current input connections to internal bridge
AC2	Input AC terminal 2	Second AC input node; differential voltage applied here defines rectification path
+ (Anode Output)	Positive DC output	Full-wave rectified positive rail output; connects to bulk capacitor or downstream regulator
– (Cathode Output)	Negative DC output	Common return/ground reference for rectified output; completes DC path

Key Features

Feature	Design Value
AEC-Q101 qualified variant available	DBLS205GH meets automotive-grade reliability requirements including stress testing and whisker resistance
High surge current capability	50 A I_FSM enables tolerance of 10× rated current surges without failure
Moisture sensitivity level 1	No bake preconditioning required before reflow - simplifies manufacturing flow
Halogen-free construction	Complies with IEC 61249-2-21 - supports RoHS and environmental compliance programs
UL Recognized	File # E-326854 confirms safety compliance for end-equipment certification

Applications

Switching Mode Power Supply (SMPS)	LED Lighting Driver
Use Scenario: AC front-end rectification in offline 20–100 W isolated flyback converters. IC Role / Device Role / Timing Role: Quad bridge rectifier converting universal AC input (85–265 V_AC) to pulsating DC prior to transformer primary. Use Value: 600 V V_RRM provides 2× margin over 265 V_AC peak (375 V), ensuring safe operation under brownout and surge conditions.	Use Scenario: Constant-voltage LED driver for commercial downlights and panel lights. IC Role / Device Role / Timing Role: Input-stage bridge rectifier feeding passive PFC and buck converter stage. Use Value: Low 1.15 V V_F minimizes conduction loss at 2 A, improving system efficiency and reducing heatsink requirements.
AC/DC Adapter	Industrial Control Power Module
Use Scenario: Compact wall-plug adapters for consumer electronics (e.g., routers, set-top boxes). IC Role / Device Role / Timing Role: Surface-mount bridge rectifier in space-constrained PCB layouts with automated assembly. Use Value: DBLS package footprint and gull-wing leads enable high-yield reflow soldering and IPC Class 2/3 compliance.	Use Scenario: Auxiliary power supply for PLC I/O modules requiring wide ambient temperature operation. IC Role / Device Role / Timing Role: Primary-side rectifier operating continuously at -40 °C to +85 °C ambient with derated load. Use Value: -55 °C to +150 °C T_J rating supports extended thermal margin and field reliability in unventilated enclosures.

Switching Mode Power Supply (SMPS)

LED Lighting Driver

Use Scenario: AC front-end rectification in offline 20–100 W isolated flyback converters.

IC Role / Device Role / Timing Role: Quad bridge rectifier converting universal AC input (85–265 V_AC) to pulsating DC prior to transformer primary.

Use Value: 600 V V_RRM provides 2× margin over 265 V_AC peak (375 V), ensuring safe operation under brownout and surge conditions.

Use Scenario: Constant-voltage LED driver for commercial downlights and panel lights.

IC Role / Device Role / Timing Role: Input-stage bridge rectifier feeding passive PFC and buck converter stage.

Use Value: Low 1.15 V V_F minimizes conduction loss at 2 A, improving system efficiency and reducing heatsink requirements.

AC/DC Adapter

Industrial Control Power Module

Use Scenario: Compact wall-plug adapters for consumer electronics (e.g., routers, set-top boxes).

IC Role / Device Role / Timing Role: Surface-mount bridge rectifier in space-constrained PCB layouts with automated assembly.

Use Value: DBLS package footprint and gull-wing leads enable high-yield reflow soldering and IPC Class 2/3 compliance.

Use Scenario: Auxiliary power supply for PLC I/O modules requiring wide ambient temperature operation.

IC Role / Device Role / Timing Role: Primary-side rectifier operating continuously at -40 °C to +85 °C ambient with derated load.

Use Value: -55 °C to +150 °C T_J rating supports extended thermal margin and field reliability in unventilated enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU6K (ON Semiconductor)	Same I_F = 2 A, but higher V_RRM = 800 V; larger GBU package (10.5 × 14.5 mm vs. DBLS 8.1 × 6.2 mm)	Preferred where higher voltage margin or legacy through-hole compatibility is needed	Select DBLS205G for space-constrained SMT designs; choose GBU6K when board layout allows larger footprint and requires >600 V margin
MB2S (Vishay)	Lower I_F = 0.5 A, same DBLS-equivalent SO-4 package; V_RRM = 600 V, but lower I_FSM = 17 A	Suitable only for sub-1 W auxiliary supplies, not main power rails	DBLS205G is required for 2 A continuous loads; MB2S is insufficient for primary rectification in SMPS above 5 W

Compared with GBU6K and MB2S, DBLS205G uniquely balances 2 A current rating, 600 V blocking, compact DBLS SMT package, and 50 A surge capability - making it optimal for mid-power AC/DC converters where size, reliability, and thermal performance are jointly constrained.

Availability

DBLS205G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, consistent parametric performance, and long-term industrial availability.

Supply support for DBLS205G 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 rectifiers, TVS diodes, MOSFETs, and bipolar transistors.

The DBLS205G belongs to TSC's standard bridge rectifier product line, engineered for cost-sensitive, high-volume AC/DC conversion applications demanding reliability, manufacturability, and regulatory compliance (UL, RoHS, AEC-Q101).

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) of the DBLS205G?

The DBLS205G has a V_RRM of 600 V, as specified in the Absolute Maximum Ratings table. This value is fixed for the DBLS205G variant and distinguishes it from other members of the DBLS201G–DBLS209G family (e.g., DBLS204G = 400 V, DBLS206G = 800 V). The 600 V rating ensures safe operation with 265 V_AC mains input plus transient margin.

Is the DBLS205G RoHS and halogen-free compliant?

Yes, the DBLS205G is RoHS compliant and halogen-free per IEC 61249-2-21. These compliance attributes are explicitly stated in the FEATURES section of the official Taiwan Semiconductor datasheet (Version J2103) and apply to all DBLS201G–DBLS209G variants, including DBLS205G.

Does the DBLS205G have AEC-Q101 qualification?

The DBLS205G itself is not AEC-Q101 qualified; however, its direct variant DBLS205GH is AEC-Q101 qualified. The "H" suffix denotes automotive qualification, including extended temperature testing, bias-HAST, and whisker resistance per JESD201 Class 2. DBLS205G remains suitable for industrial and commercial applications.

What is the forward voltage (V_F) of the DBLS205G at rated current?

The DBLS205G has a maximum forward voltage of 1.15 V at I_F = 2 A and T_J = 25 °C, as confirmed in the Electrical Specifications table. This value applies specifically to DBLS201G–DBLS207G variants; DBLS208G/DBLS209G specify 1.30 V due to higher voltage die construction.

What package type does the DBLS205G use, and what are its key mechanical properties?

The DBLS205G uses the DBLS surface-mount package: a 4-terminal molded plastic case with gull-wing leads, UL 94V-0 flammability rating, matte tin plating per J-STD-002, and 0.360 g typical weight. Polarity is marked on the top surface, and the package supports standard reflow profiles without moisture preconditioning (MSL Level 1).

DBLS205G C1G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 4-SMD, Gull Wing

Packaging:: Tube

Product Status:: Active

Diode Type:: Single Phase

Technology:: Standard

Voltage - Peak Reverse (Max):: 600 V

Current - Average Rectified (Io):: 2 A

Voltage - Forward (Vf) (Max) @ If:: 1.15 V @ 2 A

Current - Reverse Leakage @ Vr:: 2 µA @ 600 V

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DBLS

DBLS205G C1G FAQ

1.How can I place an order for DBLS205G C1G through Aetrix?

Please submit a Request for Quotation (RFQ) for DBLS205G C1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for DBLS205G C1G reliable?

The price and inventory of DBLS205G C1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS205G C1G is usually 5 days.

3.What payment methods are accepted for DBLS205G C1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS205G C1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DBLS205G C1G?

DBLS205G C1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DBLS205G C1G order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for DBLS205G C1G?

For technical support, including DBLS205G C1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS205G C1G requirements.

6.How does Aetrix verify that DBLS205G C1G is sourced from the original manufacturer or authorized distributors?

All DBLS205G C1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DBLS205G C1G meets industry standards.

7.What is the process for return or replacement of DBLS205G C1G?

All DBLS205G C1G units undergo pre-shipment inspection (PSI). If there is an issue with DBLS205G C1G, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The DBLS205G C1G part is unused and in its original packaging.

Return procedure for DBLS205G C1G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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