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

Taiwan Semiconductor Corporation DBLS105G-T

Name: DBLS105G-T
Brand: Taiwan Semiconductor Corporation
SKU: DBLS105G-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DBLS105G-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-SMD, Gull Wing

Datasheet:: DBLS105G-T.pdf

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

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Inventory:4,612

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Product details

Overview

DBLS105G-T from Taiwan Semiconductor is a 1 A, 600 V repetitive peak reverse voltage (V_RRM) quad-configuration standard bridge rectifier in DBLS package, with 40 A peak forward surge current (I_FSM), 15 °C/W junction-to-lead thermal resistance, and RoHS/halogen-free compliance - used in AC/DC front-end stages of compact switching mode power supplies.

For engineers reviewing the DBLS105G-T datasheet, DBLS105G-T pinout, DBLS105G-T application, or DBLS105G-T equivalent, key selection criteria include verified V_RRM = 600 V, I_F = 1 A continuous rating, I_FSM = 40 A (8.3 ms), T_J_MAX = 150 °C, and DBLS surface-mount package compatibility with automated PCB assembly.

Technical Context

The DBLS105G-T integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling direct AC-to-DC conversion without external interconnection. Its DBLS molded plastic package supports reflow soldering per J-STD-002, with matte tin-plated leads and UL 94V-0 rated compound.

Thermal performance is defined by R_θJL = 15 °C/W and R_θJA = 40 °C/W, supporting operation up to 150 °C junction temperature. Electrical behavior includes V_F ≤ 1.1 V at I_F = 1 A and I_R ≤ 2 µA at 25 °C under rated reverse voltage.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - maximum non-repetitive reverse voltage the device withstands without breakdown
I_F	1 A - continuous average forward current rating at TA = 25 °C
I_FSM	40 A - peak surge current capability for 8.3 ms half-sine wave, critical for inrush handling
T_J_MAX	150 °C - maximum allowable junction temperature, defining thermal derating limits
R_θJL	15 °C/W - thermal resistance from junction to lead, enabling direct PCB copper pour heat sinking
V_F	≤ 1.1 V - forward voltage drop per diode at 1 A and 25 °C, directly impacting conduction loss
I_R	≤ 2 µA - reverse leakage current per diode at rated V_RRM and 25 °C, affecting standby power

Pinout & Package

Package: DBLS - surface-mount, 4-terminal molded plastic case with gull-wing leads, UL 94V-0 rated, moisture sensitivity level 1 (J-STD-002 compliant).

Pin/Terminal	Circuit Role	Design Meaning
AC1	AC input terminal 1	One of two alternating current input connections to internal bridge
AC2	AC input terminal 2	Second AC input connection; polarity must match marking on device body
+	Positive DC output	Anode of output leg; connects to load positive rail after rectification
–	Negative DC output	Cathode of output leg; serves as return path and system ground reference

Key Features

Feature	Design Value
UL Recognized (E-326854)	Validated safety compliance for end-equipment certification in North America
Moisture Sensitivity Level 1	Zero bake requirement before reflow; compatible with standard SMT line handling
RoHS & Halogen-Free	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmental compliance
J-STD-002 Solderability	Guaranteed wetting performance on PCB pads using standard SnPb or Pb-free solder profiles
JESD 201 Class 1A Whisker Resistance	Prevents tin whisker growth under long-term storage or thermal cycling stress

Applications

SMPS Front-End Rectification	LED Driver Input Stage
Use Scenario: AC mains input rectification in 10–60 W offline flyback converters. IC Role / Device Role / Timing Role: Standard bridge rectifier converting 85–265 V_AC to pulsating DC prior to bulk capacitor filtering. Use Value: 600 V V_RRM provides 2× margin over 265 V_AC peak (375 V), ensuring reliability under line surges.	Use Scenario: Input rectification in constant-current LED drivers for commercial lighting. IC Role / Device Role / Timing Role: Full-wave bridge providing unidirectional current to primary-side controller and bulk storage. Use Value: 40 A I_FSM withstands high inrush during cold-start, preventing fuse blow or trace damage.
Laptop Adapter AC/DC Module	Industrial Control Power Supply
Use Scenario: Compact external AC/DC adapters requiring high power density and low BOM count. IC Role / Device Role / Timing Role: Integrated bridge replacing discrete diode solutions to reduce footprint and assembly cost. Use Value: DBLS package enables 7.1 × 6.2 mm PCB area usage - 40% smaller than competing SOIC-15 packages at same rating.	Use Scenario: Auxiliary power supply in PLC I/O modules operating in extended temperature environments. IC Role / Device Role / Timing Role: Mains-fed rectifier feeding isolated DC/DC converter with wide ambient range support. Use Value: 150 °C T_J_MAX and R_θJL = 15 °C/W allow stable operation at 85 °C ambient without forced air cooling.

SMPS Front-End Rectification

LED Driver Input Stage

Use Scenario: AC mains input rectification in 10–60 W offline flyback converters.

IC Role / Device Role / Timing Role: Standard bridge rectifier converting 85–265 V_AC to pulsating DC prior to bulk capacitor filtering.

Use Value: 600 V V_RRM provides 2× margin over 265 V_AC peak (375 V), ensuring reliability under line surges.

Use Scenario: Input rectification in constant-current LED drivers for commercial lighting.

IC Role / Device Role / Timing Role: Full-wave bridge providing unidirectional current to primary-side controller and bulk storage.

Use Value: 40 A I_FSM withstands high inrush during cold-start, preventing fuse blow or trace damage.

Laptop Adapter AC/DC Module

Industrial Control Power Supply

Use Scenario: Compact external AC/DC adapters requiring high power density and low BOM count.

IC Role / Device Role / Timing Role: Integrated bridge replacing discrete diode solutions to reduce footprint and assembly cost.

Use Value: DBLS package enables 7.1 × 6.2 mm PCB area usage - 40% smaller than competing SOIC-15 packages at same rating.

Use Scenario: Auxiliary power supply in PLC I/O modules operating in extended temperature environments.

IC Role / Device Role / Timing Role: Mains-fed rectifier feeding isolated DC/DC converter with wide ambient range support.

Use Value: 150 °C T_J_MAX and R_θJL = 15 °C/W allow stable operation at 85 °C ambient without forced air cooling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU6K-E3/51 (Vishay)	V_RRM = 800 V, I_F = 6 A, GBU package (larger footprint, higher I_F)	Higher current capacity but requires PCB layout revision due to 10.5 × 14.2 mm outline	Select when >1 A average current or >800 V V_RRM is required; not drop-in for DBLS105G-T
GBU4K (ON Semiconductor)	V_RRM = 800 V, I_F = 4 A, same GBU mechanical form factor	Higher thermal mass supports higher ambient but lacks halogen-free certification	Use where halogen-free compliance is not mandated and higher surge margin is prioritized

Compared with GBU6K-E3/51 and GBU4K, the DBLS105G-T offers optimized size-to-rating balance for space-constrained 1 A designs, with certified halogen-free construction and MS-level-1 handling - making it preferable for consumer-grade compact adapters and lighting where footprint and regulatory alignment are critical.

Availability

DBLS105G-T is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and laptop adapters requiring stable component supply, consistent tape-and-reel packaging (1,500 pcs/reel), and full traceability.

Supply support for DBLS105G-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 power, automotive, and industrial markets since 1979.

The DBLS series was developed specifically for high-density, cost-sensitive AC/DC front-end applications - emphasizing compact surface-mount packaging, robust surge capability, and full regulatory compliance without design trade-offs.

FAQ

What is the peak repetitive reverse voltage rating for DBLS105G-T?

The DBLS105G-T has a specified repetitive peak reverse voltage (V_RRM) of 600 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version C2103). This value is fixed for the DBLS105G-T variant and distinguishes it from DBLS104G-T (400 V) and DBLS106G-Y (800 V). The 600 V rating ensures safe operation under 265 V_AC mains with adequate surge margin.

Does DBLS105G-T support lead-free reflow soldering?

Yes, DBLS105G-T supports lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the DBLS package is qualified for standard Pb-free reflow profiles. The device is RoHS compliant and classified as moisture sensitivity level 1, eliminating pre-bake requirements - enabling direct placement into automated SMT lines without process modification.

What is the forward voltage drop of DBLS105G-T at rated current?

The DBLS105G-T exhibits a maximum forward voltage drop (V_F) of 1.1 V per diode at I_F = 1 A and T_J = 25 °C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss - critical for calculating efficiency and thermal rise in low-power SMPS designs using DBLS105G-T.

Is DBLS105G-T pin-compatible with other DBLS-series rectifiers like DBLS104G-T?

Yes, all DBLS-series rectifiers - including DBLS104G-T, DBLS105G-T, DBLS106G-Y, and DBLS107G-T - share identical DBLS package dimensions, pinout, and terminal configuration (AC1, AC2, +, –). Only V_RRM, I_FSM, and I²t ratings differ between variants; no PCB layout change is needed when upgrading or downgrading within the DBLS family.

What certifications does DBLS105G-T hold?

DBLS105G-T is UL Recognized under File # E-326854, RoHS compliant per Directive 2011/65/EU, and halogen-free per IEC 61249-2-21. It also meets JESD 201 Class 1A for tin whisker resistance and J-STD-020 moisture sensitivity level 1 - confirming suitability for high-reliability, environmentally regulated applications without additional qualification testing.

DBLS105G-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):: 600 V

Current - Average Rectified (Io):: 1 A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 1 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

DBLS105G-T FAQ

1.How can I place an order for DBLS105G-T through Aetrix?

Please submit a Request for Quotation (RFQ) for DBLS105G-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 DBLS105G-T reliable?

The price and inventory of DBLS105G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS105G-T is usually 5 days.

3.What payment methods are accepted for DBLS105G-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS105G-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DBLS105G-T?

DBLS105G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DBLS105G-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 DBLS105G-T?

For technical support, including DBLS105G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS105G-T requirements.

6.How does Aetrix verify that DBLS105G-T is sourced from the original manufacturer or authorized distributors?

All DBLS105G-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 DBLS105G-T meets industry standards.

7.What is the process for return or replacement of DBLS105G-T?

All DBLS105G-T units undergo pre-shipment inspection (PSI). If there is an issue with DBLS105G-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 DBLS105G-T part is unused and in its original packaging.

Return procedure for DBLS105G-T:

1.Submit a request within 90 days.

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

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