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

Taiwan Semiconductor Corporation DBLS202GH

Name: DBLS202GH
Brand: Taiwan Semiconductor Corporation
SKU: DBLS202GH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DBLS202GH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-SMD, Gull Wing

Datasheet:: DBLS202GH.pdf

Description:: BRIDGE RECT 1PHASE 100V 2A DBLS

Quantity:: RFQ Add To RFQ list

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Inventory:6,428

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Product details

Overview

DBLS202GH from Taiwan Semiconductor is a 2 A, 100 V repetitive peak reverse voltage (V_RRM) AEC-Q101-qualified standard bridge rectifier in DBLS package, featuring 50 A peak surge current (I_FSM), 1.15 V forward voltage at 2 A, and UL Recognized File # E-326854 - used in automotive-grade AC/DC adapters and industrial SMPS front-end rectification.

For engineers reviewing the DBLS202GH datasheet, DBLS202GH pinout, DBLS202GH application, or DBLS202GH equivalent, key selection criteria include V_RRM = 100 V, I_F = 2 A, AEC-Q101 qualification status, thermal resistance R_θJL = 15 °C/W, and DBLS surface-mount quad configuration compatibility with high-density PCB layouts.

Technical Context

This device 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 and meets JESD201 Class 2 whisker resistance.

Rated for junction temperatures from –55 °C to +150 °C and moisture sensitivity level 1 (per J-STD-020), DBLS202GH delivers stable performance under transient overloads (I_FSM = 50 A, 8.3 ms half-sine) and exhibits low leakage (I_R ≤ 2 µA at 25 °C, ≤ 500 µA at 125 °C).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - maximum non-repetitive reverse voltage the bridge withstands without breakdown
I_F	2 A - continuous average forward current rating per device at T_A = 25 °C
I_FSM	50 A - peak surge current capability for 8.3 ms half-sine wave, critical for inrush handling
V_F	1.15 V - forward voltage drop per diode at I_F = 2 A and T_J = 25 °C, defining conduction loss
R_θJL	15 °C/W - junction-to-lead thermal resistance, enabling direct heatsinking via PCB copper
T_J(max)	+150 °C - maximum allowable junction temperature, supporting operation in under-hood automotive environments

Pinout & Package

DBLS202GH uses a 4-terminal surface-mount DBLS package (quad configuration), with terminals arranged as AC1–AC2–+–– in a compact, UL 94V-0 compliant molded plastic body. Matte tin-plated leads ensure reliable solderability.

Pin/Terminal	Circuit Role	Design Meaning
AC1	AC input anode	One of two alternating-current input terminals; connects to one side of transformer secondary
AC2	AC input cathode	Second AC input terminal; completes full-wave bridge input path
+	DC output anode	Positive DC output node; supplies rectified voltage to downstream filter and regulator stages
–	DC output cathode	Common return/ground reference for DC output; ties to system ground plane

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive applications including engine control modules and body electronics requiring reliability under thermal cycling and vibration
UL Recognition (E-326854)	Confirms compliance with UL 60950-1/62368-1 safety standards for end-equipment certification
Moisture Sensitivity Level 1	Enables unlimited floor life before reflow; eliminates bake requirements and simplifies SMT line logistics
Halogen-free construction	Meets IEC 61249-2-21, supporting RoHS-compliant and environmentally regulated manufacturing

Applications

Automotive AC/DC Adapters	Industrial SMPS Front-End
Use Scenario: On-board 12 V DC power supply for infotainment head units powered from vehicle battery + alternator AC ripple. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting transformer-coupled AC to unregulated DC prior to filtering and regulation. Use Value: AEC-Q101 qualification ensures robustness against automotive thermal transients and long-term reliability in 15-year vehicle lifecycles.	Use Scenario: Input-stage rectification in DIN-rail mounted 24 V industrial power supplies feeding PLC I/O modules. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element handling 50/60 Hz line input with high surge immunity. Use Value: 50 A I_FSM rating safely absorbs repeated inrush currents during cold-start of multiple downstream loads.
LED Driver Power Supplies	Consumer Wall Adapters
Use Scenario: Constant-voltage LED driver for commercial downlight fixtures operating from universal AC input (90–264 V_AC). IC Role / Device Role / Timing Role: Bridge rectifier in flyback converter primary-side input stage, delivering bulk DC to PFC or PWM controller. Use Value: Low V_F (1.15 V) minimizes conduction loss and improves efficiency in thermally constrained enclosed housings.	Use Scenario: Compact 5 V/2 A wall adapter for USB-powered smart home sensors and IoT gateways. IC Role / Device Role / Timing Role: Surface-mount bridge rectifier enabling high-density PCB layout with minimal footprint. Use Value: DBLS package's 0.36 g mass and lead-free matte tin plating support automated assembly and IPC-A-610 Class 2 compliance.

Automotive AC/DC Adapters

Industrial SMPS Front-End

Use Scenario: On-board 12 V DC power supply for infotainment head units powered from vehicle battery + alternator AC ripple.

IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting transformer-coupled AC to unregulated DC prior to filtering and regulation.

Use Value: AEC-Q101 qualification ensures robustness against automotive thermal transients and long-term reliability in 15-year vehicle lifecycles.

Use Scenario: Input-stage rectification in DIN-rail mounted 24 V industrial power supplies feeding PLC I/O modules.

IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element handling 50/60 Hz line input with high surge immunity.

Use Value: 50 A I_FSM rating safely absorbs repeated inrush currents during cold-start of multiple downstream loads.

LED Driver Power Supplies

Consumer Wall Adapters

Use Scenario: Constant-voltage LED driver for commercial downlight fixtures operating from universal AC input (90–264 V_AC).

IC Role / Device Role / Timing Role: Bridge rectifier in flyback converter primary-side input stage, delivering bulk DC to PFC or PWM controller.

Use Value: Low V_F (1.15 V) minimizes conduction loss and improves efficiency in thermally constrained enclosed housings.

Use Scenario: Compact 5 V/2 A wall adapter for USB-powered smart home sensors and IoT gateways.

IC Role / Device Role / Timing Role: Surface-mount bridge rectifier enabling high-density PCB layout with minimal footprint.

Use Value: DBLS package's 0.36 g mass and lead-free matte tin plating support automated assembly and IPC-A-610 Class 2 compliance.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU2K	V_RRM = 800 V, I_F = 2 A, GBU package (larger footprint, higher R_θJA = 50 °C/W)	Higher voltage margin suitable for universal-input offline SMPS; less suited for space-constrained automotive PCBs	Select when >100 V reverse blocking is required and board area permits larger through-hole or GBU-SMD footprint
GBU2J	V_RRM = 600 V, same I_F/I_FSM, identical GBU package as GBU2K	Mid-range voltage option; lacks AEC-Q101 qualification and UL recognition	Choose only for cost-sensitive non-automotive consumer applications where qualification and safety certifications are not mandated

Compared with GBU2K and GBU2J, DBLS202GH offers automotive-grade reliability (AEC-Q101), UL safety recognition, and a compact DBLS surface-mount footprint - making it optimal for space-limited, thermally demanding, and safety-certified designs where 100 V V_RRM suffices.

Availability

DBLS202GH is available at Aetrix Electronics and suitable for automotive AC/DC adapters, industrial SMPS front-end rectification, and LED driver power supplies requiring stable component supply across multi-year production cycles.

Supply support for DBLS202GH 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 power devices, rectifiers, and protection components since 1979.

The DBLS series was developed to deliver AEC-Q101-qualified, UL-recognized bridge rectifiers in compact surface-mount packages for automotive and industrial power conversion systems demanding high surge immunity and long-term reliability.

FAQ

What is the peak repetitive reverse voltage rating for DBLS202GH?

The DBLS202GH has a repetitive peak reverse voltage (V_RRM) rating of 100 V. This value is fixed for the "202" variant in the DBLS201G–DBLS209G family and defines the maximum reverse voltage the device can block repeatedly without breakdown. It is verified per the manufacturer's absolute maximum ratings table and applies under standard test conditions (T_A = 25 °C).

Is DBLS202GH qualified to AEC-Q101, and what does the "H" suffix indicate?

Yes, DBLS202GH is AEC-Q101 qualified - the "H" suffix in the ordering code explicitly denotes this qualification. AEC-Q101 validation covers stress tests including temperature cycling, humidity bias, and mechanical shock, confirming suitability for automotive electronic modules. The qualification status is documented in Taiwan Semiconductor's official product release notes and datasheet revision J2103.

What is the forward voltage drop of DBLS202GH at rated current?

At I_F = 2 A and T_J = 25 °C, the typical forward voltage drop (V_F) per diode in DBLS202GH is 1.15 V. This value is specified in the Electrical Specifications table and reflects conduction loss under nominal operating conditions. Measured using pulse testing (PW = 0.3 ms), it enables accurate thermal modeling for PCB copper pour design.

Does DBLS202GH have UL recognition, and what is the file number?

Yes, DBLS202GH is UL Recognized under File # E-326854. This recognition confirms compliance with UL 60950-1 and UL 62368-1 safety standards for information technology and audio/video equipment. The file covers the entire DBLS201G–DBLS209G family and validates flammability (UL 94V-0), dielectric strength, and construction integrity.

What is the thermal resistance from junction to lead (R_θJL) for DBLS202GH, and why does it matter?

DBLS202GH has a junction-to-lead thermal resistance (R_θJL) of 15 °C/W. This parameter quantifies how effectively heat transfers from the silicon junction to the device leads - critical for estimating temperature rise when leads are thermally connected to large PCB copper areas. A lower R_θJL enables higher power dissipation without exceeding T_J(max) = 150 °C.

DBLS202GH 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):: 100 V

Current - Average Rectified (Io):: 2 A

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

Current - Reverse Leakage @ Vr:: 2 µA @ 100 V

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DBLS

DBLS202GH FAQ

1.How can I place an order for DBLS202GH through Aetrix?

Please submit a Request for Quotation (RFQ) for DBLS202GH 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 DBLS202GH reliable?

The price and inventory of DBLS202GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS202GH is usually 5 days.

3.What payment methods are accepted for DBLS202GH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS202GH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DBLS202GH?

DBLS202GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DBLS202GH 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 DBLS202GH?

For technical support, including DBLS202GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS202GH requirements.

6.How does Aetrix verify that DBLS202GH is sourced from the original manufacturer or authorized distributors?

All DBLS202GH 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 DBLS202GH meets industry standards.

7.What is the process for return or replacement of DBLS202GH?

All DBLS202GH units undergo pre-shipment inspection (PSI). If there is an issue with DBLS202GH, 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 DBLS202GH part is unused and in its original packaging.

Return procedure for DBLS202GH:

1.Submit a request within 90 days.

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

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