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

Taiwan Semiconductor Corporation DBLS206G-T

Name: DBLS206G-T
Brand: Taiwan Semiconductor Corporation
SKU: DBLS206G-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DBLS206G-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-SMD, Gull Wing

Datasheet:: DBLS206G-T.pdf

Description:: BRIDGE RECT 1PHASE 800V 2A DBLS

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Product details

Overview

DBLS206G-T from Taiwan Semiconductor is a 2 A, 800 V standard quad bridge rectifier in DBLS package, featuring 50 A peak surge current, 1.15 V max forward voltage per diode at 2 A, and 2 µA max reverse leakage at 25°C - used in AC/DC front-end stages of compact SMPS and LED drivers.

For engineers reviewing the DBLS206G-T datasheet, DBLS206G-T pinout, DBLS206G-T application, or DBLS206G-T equivalent, key selection criteria include repetitive peak reverse voltage (800 V), thermal resistance (R_θJL = 15 °C/W), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance for industrial-grade power conversion designs.

Technical Context

The DBLS206G-T integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode/common-anode topology. Its DBLS molded plastic package enables surface-mount assembly while maintaining UL 94V-0 flammability rating and JESD201 Class 1A whisker resistance.

Designed for high-reliability AC input rectification, it supports 8.3 ms half-sine surge currents up to 50 A and delivers stable performance across –55°C to +150°C junction temperature, with I²t rating of 10.37 A²s for fusing protection under transient overload.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - maximum repetitive reverse voltage per diode; defines safe AC input voltage ceiling (e.g., 560 V_RMS line) before breakdown.
I_F	2 A - average forward current rating; determines continuous DC output capability in rectifier stage without derating.
I_FSM	50 A - non-repetitive surge current (8.3 ms); supports inrush current handling during cold-start of switch-mode supplies.
V_F (max)	1.15 V @ 2 A, 25°C - forward voltage drop per diode; directly impacts conduction loss and thermal design margin.
R_θJL	15 °C/W - junction-to-lead thermal resistance; enables direct PCB copper pour heat sinking without external heatsink.
I_R (max)	2 µA @ 25°C - reverse leakage per diode; critical for low-power standby efficiency and high-impedance hold-up circuits.
T_J Range	–55°C to +150°C - operational junction temperature window; supports deployment in enclosed, thermally constrained environments.

Pinout & Package

Package: DBLS - surface-mount, molded plastic case with matte tin-plated leads, UL 94V-0 rated, 0.360 g weight, polarity marked on top surface.

Pin/Terminal	Circuit Role	Design Meaning
AC1	Input AC terminal 1	One leg of AC input; connects to primary-side transformer secondary or EMI filter output.
AC2	Input AC terminal 2	Second leg of AC input; completes full-wave bridge input path with AC1.
+ (Anode-Cathode common)	DC positive output	Full-wave rectified positive rail; ties to bulk capacitor anode and downstream converter input.
– (Cathode-Anode common)	DC negative output / ground reference	Rectified return path; serves as system ground reference for downstream regulation.

Key Features

Feature	Design Value
UL Recognized (E-326854)	Validated safety compliance for end-equipment certification in North America and global markets.
Moisture Sensitivity Level 1	No baking required prior to reflow; compatible with standard SMT assembly processes without preconditioning.
Halogen-free (IEC 61249-2-21)	Meets environmental regulations for hazardous substance restriction in consumer and industrial electronics.
JESD201 Class 1A whisker resistance	Ensures long-term solder joint integrity under thermal cycling and vibration stress.
RoHS Compliant	Lead-free and compliant with EU Directive 2011/65/EU for restricted substances.

Applications

LED Driver Power Supply	USB-C PD Adapter
Use Scenario: Rectifying 100–240 V_AC input in compact, isolated flyback-based LED drivers for commercial lighting. IC Role / Device Role / Timing Role: Primary-side AC/DC bridge rectifier converting mains to unregulated DC bus feeding the flyback controller. Use Value: 800 V V_RRM provides 2× safety margin over 375 V_PEAK universal input, minimizing risk of avalanche failure during line surges.	Use Scenario: Front-end rectification in 30–65 W USB-C power delivery adapters with active clamp or QR flyback topology. IC Role / Device Role / Timing Role: Input-stage discrete bridge replacing discrete diode solutions to reduce footprint and improve assembly yield. Use Value: DBLS package enables 30% smaller PCB area vs. DIP-4 bridges, supporting ultra-thin adapter mechanical form factors.
Industrial PLC Power Module	Smart Home Gateway Power Stage
Use Scenario: Mains-powered programmable logic controller with wide-input-range auxiliary supply (85–305 V_AC). IC Role / Device Role / Timing Role: Robust AC input rectifier operating continuously at elevated ambient temperatures (>70°C). Use Value: R_θJL = 15 °C/W allows direct thermal coupling to copper pour, sustaining 2 A load at 100°C ambient without forced air.	Use Scenario: Dual-rail power supply (5 V + 3.3 V) in Wi-Fi/Zigbee gateways requiring low standby leakage and high reliability. IC Role / Device Role / Timing Role: Bridge rectifier feeding PFC-less buck converter with tight no-load power budget. Use Value: 2 µA max I_R at 25°C minimizes no-load input current, helping meet Energy Star Level VI and ERP Tier 2 standby requirements.

LED Driver Power Supply

USB-C PD Adapter

Use Scenario: Rectifying 100–240 V_AC input in compact, isolated flyback-based LED drivers for commercial lighting.

IC Role / Device Role / Timing Role: Primary-side AC/DC bridge rectifier converting mains to unregulated DC bus feeding the flyback controller.

Use Value: 800 V V_RRM provides 2× safety margin over 375 V_PEAK universal input, minimizing risk of avalanche failure during line surges.

Use Scenario: Front-end rectification in 30–65 W USB-C power delivery adapters with active clamp or QR flyback topology.

IC Role / Device Role / Timing Role: Input-stage discrete bridge replacing discrete diode solutions to reduce footprint and improve assembly yield.

Use Value: DBLS package enables 30% smaller PCB area vs. DIP-4 bridges, supporting ultra-thin adapter mechanical form factors.

Industrial PLC Power Module

Smart Home Gateway Power Stage

Use Scenario: Mains-powered programmable logic controller with wide-input-range auxiliary supply (85–305 V_AC).

IC Role / Device Role / Timing Role: Robust AC input rectifier operating continuously at elevated ambient temperatures (>70°C).

Use Value: R_θJL = 15 °C/W allows direct thermal coupling to copper pour, sustaining 2 A load at 100°C ambient without forced air.

Use Scenario: Dual-rail power supply (5 V + 3.3 V) in Wi-Fi/Zigbee gateways requiring low standby leakage and high reliability.

IC Role / Device Role / Timing Role: Bridge rectifier feeding PFC-less buck converter with tight no-load power budget.

Use Value: 2 µA max I_R at 25°C minimizes no-load input current, helping meet Energy Star Level VI and ERP Tier 2 standby requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU4K (ON Semiconductor)	Same 2 A / 800 V rating but GBU-4 package (larger, through-hole); R_θJA = 50 °C/W vs. DBLS206G-T's 40 °C/W.	Suitable for prototyping or legacy through-hole designs; not SMT-compatible.	Select when board redesign is impractical and thermal margin permits higher ambient rise.
MB10F (Diodes Inc.)	2 A / 1000 V rating in MBF package; slightly higher V_F (1.25 V max); same SMT footprint but different pinout (4-pin inline vs. DBLS 4-pin square).	Offers higher voltage margin but requires PCB layout change; no pin compatibility.	Choose for enhanced surge robustness where 1000 V V_RRM is mandated by regional grid standards.

Compared with GBU4K and MB10F, the DBLS206G-T delivers superior thermal performance in SMT format with verified moisture level 1 handling, making it optimal for high-volume, space-constrained, and thermally demanding AC/DC power supplies where reflow compatibility and board area are critical.

Availability

DBLS206G-T is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and USB-C power adapters requiring stable component supply, consistent parametric performance, and full regulatory compliance (RoHS, halogen-free, UL recognized).

Supply support for DBLS206G-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 DBLS series was developed specifically for high-density, cost-sensitive AC/DC front-end rectification - emphasizing SMT manufacturability, thermal efficiency, and compliance-ready construction for next-generation power supplies.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for DBLS206G-T?

The DBLS206G-T has a maximum repetitive peak reverse voltage (V_RRM) of 800 V, as specified in the Absolute Maximum Ratings table. This value is fixed for the DBLS206G-T variant and distinguishes it from other members of the DBLS204G-T to DBLS207G-T family (400 V to 1000 V). It ensures reliable operation under 560 V_RMS AC line conditions with adequate safety margin.

Does DBLS206G-T require moisture sensitivity baking before reflow soldering?

No, DBLS206G-T is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking or dry-packing. This eliminates process steps and reduces manufacturing risk - a confirmed specification documented in the Mechanical Data section of the official Taiwan Semiconductor datasheet.

What is the forward voltage (V_F) specification for DBLS206G-T at rated current?

The DBLS206G-T has a maximum forward voltage of 1.15 V per diode at I_F = 2 A and T_J = 25°C, measured under pulsed conditions (PW = 0.3 ms). This value is critical for calculating conduction losses and thermal design; typical V_F is lower, but system-level worst-case analysis must use the 1.15 V max limit stated in the Electrical Specifications table.

Is DBLS206G-T RoHS and halogen-free compliant?

Yes, DBLS206G-T is both RoHS compliant and halogen-free in accordance with IEC 61249-2-21. These compliance statements are explicitly declared in the FEATURES section of the official Taiwan Semiconductor datasheet (Version C2103), confirming suitability for environmentally regulated markets including the EU, China, and South Korea.

What is the thermal resistance from junction to lead (R_θJL) for DBLS206G-T?

The junction-to-lead thermal resistance (R_θJL) for DBLS206G-T is 15 °C/W, as published in the THERMAL PERFORMANCE section. This low value enables efficient heat transfer from the die to the PCB copper via the leads, supporting sustained 2 A operation without additional heatsinking - a key advantage over larger-package alternatives like GBU4K.

DBLS206G-T Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 4-SMD, Gull Wing

Packaging:: Tape & Reel (TR)

Product Status:: Active

Diode Type:: Single Phase

Technology:: Standard

Voltage - Peak Reverse (Max):: 800 V

Current - Average Rectified (Io):: 2 A

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

Current - Reverse Leakage @ Vr:: 2 µA @ 800 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DBLS

DBLS206G-T FAQ

1.How can I place an order for DBLS206G-T through Aetrix?

Please submit a Request for Quotation (RFQ) for DBLS206G-T 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 DBLS206G-T reliable?

The price and inventory of DBLS206G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS206G-T is usually 5 days.

3.What payment methods are accepted for DBLS206G-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS206G-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DBLS206G-T?

DBLS206G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DBLS206G-T 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 DBLS206G-T?

For technical support, including DBLS206G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS206G-T requirements.

6.How does Aetrix verify that DBLS206G-T is sourced from the original manufacturer or authorized distributors?

All DBLS206G-T 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 DBLS206G-T meets industry standards.

7.What is the process for return or replacement of DBLS206G-T?

All DBLS206G-T units undergo pre-shipment inspection (PSI). If there is an issue with DBLS206G-T, 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 DBLS206G-T part is unused and in its original packaging.

Return procedure for DBLS206G-T:

1.Submit a request within 90 days.

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

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