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

Taiwan Semiconductor Corporation HDBL103G

Name: HDBL103G
Brand: Taiwan Semiconductor Corporation
SKU: HDBL103G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HDBL103G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-DIP (0.300", 7.62mm)

Datasheet:: HDBL103G.pdf

Description:: BRIDGE RECT 1PHASE 200V 1A DBL

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Product details

Overview

HDBL103G from Taiwan Semiconductor is a 1A, 200V repetitive peak reverse voltage (V_RRM) glass-passivated quad bridge rectifier in DBL package, featuring 1.0V typical forward voltage at 1A and 50ns reverse recovery time; used in compact AC/DC front-end stages of LED drivers and low-power adapters.

For engineers reviewing the HDBL103G datasheet, HDBL103G pinout, HDBL103G application, or HDBL103G equivalent, key selection criteria include V_RRM = 200V, I_F = 1A, t_rr = 50ns, R_θJA = 40°C/W, and AEC-Q101 qualification availability - all critical for thermal reliability and EMI-sensitive SMPS designs.

Technical Context

HDBL103G integrates four silicon diodes in a single-phase full-wave bridge configuration with glass-passivated junctions for enhanced moisture and contamination resistance. Its DBL package uses matte tin-plated leads compliant with J-STD-002 and meets JESD201 Class 2 whisker resistance.

The device operates across -55°C to +150°C junction temperature range, supports 50A non-repetitive surge current (8.3ms half-sine), and delivers 10.3 A²s fusing rating - enabling robust transient handling in unregulated input stages without external snubbers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - maximum repetitive reverse voltage per diode; defines safe AC input voltage ceiling (e.g., ≤141V RMS) before breakdown.
I_F	1 A - average forward current rating; sets continuous DC output capability in bridge configuration.
t_rr	50 ns - reverse recovery time at I_F=0.5A, I_R=1.0A; enables operation up to ~2 MHz switching without excessive switching loss.
V_F	1.0 V (typ) at I_F=1A, T_J=25°C - forward drop per diode; determines conduction loss (≈0.4W total bridge at 1A DC).
R_θJA	40 °C/W - junction-to-ambient thermal resistance; requires ≥1.5 cm² copper pour for 1A continuous operation at 70°C ambient.
I_FSM	50 A - peak forward surge current (8.3ms); withstands cold-start inrush in offline capacitive-input supplies.
I_R	5 µA (max) at V_R=200V, T_J=25°C - leakage per diode; ensures minimal standby power loss in high-impedance bias networks.

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
AC1	Bridge AC input terminal	Connects to one side of transformer secondary or AC line; shares internal die with AC2 via common cathode/anode node.
AC2	Bridge AC input terminal	Connects to opposite side of transformer secondary; forms full-wave input pair with AC1.
+ (Anode)	Bridge positive DC output	Internal connection point of two anodes; delivers rectified positive voltage to bulk capacitor or regulator input.
– (Cathode)	Bridge negative DC output	Internal connection point of two cathodes; serves as return path and ground reference for downstream circuitry.

Key Features

Feature	Design Value
Glass-passivated junction	Prevents corrosion and leakage drift under humid or contaminated PCB environments, extending field life in outdoor lighting.
UL Recognized (E-326854)	Validates flammability, insulation, and construction safety for end-equipment certification (e.g., UL 62368-1).
AEC-Q101 qualified option	HDBL103GH variant available for automotive cabin electronics requiring stress-tested discrete rectifiers.
Junction-to-lead thermal resistance (R_θJL)	15 °C/W - enables direct heat transfer to PCB copper, supporting >0.8A derated current without heatsink.
Halogen-free (IEC 61249-2-21)	Meets RoHS and environmental compliance mandates for consumer and industrial export markets.

Applications

LED Driver Power Supply	USB Wall Adapter
Use Scenario: Rectifying 120V AC mains into DC bus for constant-current LED string control in commercial downlights. IC Role / Device Role / Timing Role: Primary AC/DC conversion element; provides isolated, low-leakage DC input to PWM controller IC and MOSFET switch. Use Value: 50ns t_rr minimizes high-frequency ringing during MOSFET turn-on, reducing EMI filter component count by 30% vs. slower bridges.	Use Scenario: Input stage of 5W USB charging adapter with flyback topology and no PFC stage. IC Role / Device Role / Timing Role: Full-wave bridge rectifier feeding bulk capacitor; interfaces directly with transformer primary-side controller feedback loop. Use Value: 1.0V V_F limits conduction loss to <0.4W at 1A, enabling >82% efficiency at light load without thermal derating.
Industrial Sensor Power Module	White Goods Control Board
Use Scenario: Providing auxiliary 12V DC rail for microcontroller, op-amps, and digital isolators in factory-floor vibration sensors. IC Role / Device Role / Timing Role: Compact, reliable AC input rectification with minimal footprint; mounted adjacent to transformer on space-constrained 4-layer board. Use Value: DBL package's 0.360g mass and UL 94V-0 molding compound ensure mechanical stability and flame resistance in sealed enclosures.	Use Scenario: Mains-powered control board in washing machine, powering MCU, display, and relay drivers from 230V AC input. IC Role / Device Role / Timing Role: Bridge rectifier in unregulated linear supply section; feeds 78L05 LDO and optocoupler isolation circuits. Use Value: 50A I_FSM withstands motor startup surges without degradation, eliminating need for upstream NTC thermistors.

LED Driver Power Supply

USB Wall Adapter

Use Scenario: Rectifying 120V AC mains into DC bus for constant-current LED string control in commercial downlights.

IC Role / Device Role / Timing Role: Primary AC/DC conversion element; provides isolated, low-leakage DC input to PWM controller IC and MOSFET switch.

Use Value: 50ns t_rr minimizes high-frequency ringing during MOSFET turn-on, reducing EMI filter component count by 30% vs. slower bridges.

Use Scenario: Input stage of 5W USB charging adapter with flyback topology and no PFC stage.

IC Role / Device Role / Timing Role: Full-wave bridge rectifier feeding bulk capacitor; interfaces directly with transformer primary-side controller feedback loop.

Use Value: 1.0V V_F limits conduction loss to <0.4W at 1A, enabling >82% efficiency at light load without thermal derating.

Industrial Sensor Power Module

White Goods Control Board

Use Scenario: Providing auxiliary 12V DC rail for microcontroller, op-amps, and digital isolators in factory-floor vibration sensors.

IC Role / Device Role / Timing Role: Compact, reliable AC input rectification with minimal footprint; mounted adjacent to transformer on space-constrained 4-layer board.

Use Value: DBL package's 0.360g mass and UL 94V-0 molding compound ensure mechanical stability and flame resistance in sealed enclosures.

Use Scenario: Mains-powered control board in washing machine, powering MCU, display, and relay drivers from 230V AC input.

IC Role / Device Role / Timing Role: Bridge rectifier in unregulated linear supply section; feeds 78L05 LDO and optocoupler isolation circuits.

Use Value: 50A I_FSM withstands motor startup surges without degradation, eliminating need for upstream NTC thermistors.

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)	V_RRM = 400V, I_F = 4A, t_rr = 100ns, GBPC package (larger, higher thermal mass)	Higher voltage margin and current headroom but 2× footprint; suited for 230V global adapters with PFC.	Select when V_RRM > 200V or I_F > 1A is required; not drop-in due to different pinout and thermal pad layout.
MB10F (Vishay)	V_RRM = 1000V, I_F = 1A, t_rr = 150ns, MBF package (smaller, no thermal pad)	Ultra-high V_RRM for surge-prone industrial lines; slower recovery increases switching loss above 100kHz.	Choose for legacy 1000V-rated designs where surge immunity outweighs EMI concerns; requires layout review for thermal performance.

Compared with GBU4K and MB10F, HDBL103G offers optimal balance of size, speed (50ns), and thermal efficiency (R_θJA = 40°C/W) for cost-sensitive 1A, 200V applications - especially where PCB area and EMI filtering are constrained.

Availability

HDBL103G is available at Aetrix Electronics and suitable for LED driver power supplies, USB wall adapters, and industrial sensor modules requiring stable component supply and consistent DBL-package form factor.

Supply support for HDBL103G 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 industrial, computing, and consumer markets since 1979.

HDBL103G belongs to TSC's high-efficiency bridge rectifier product line, engineered for compact, thermally efficient AC/DC conversion in cost-driven power supplies where reliability under surge and humidity is critical.

FAQ

What is the maximum operating junction temperature for HDBL103G?

HDBL103G has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings table. This allows operation in enclosed environments up to 70°C ambient when derated per the forward current derating curve. Thermal design must account for R_θJA = 40°C/W to avoid exceeding this limit under full 1A load. The HDBL103G datasheet specifies that continuous operation above 150°C risks permanent parametric shift or failure.

Is HDBL103G pin-compatible with other DBL-packaged bridges like HDBL102G or HDBL104G?

Yes - HDBL103G shares identical DBL package outline, lead frame geometry, and 4-pin terminal arrangement (AC1, AC2, +, –) with all members of the HDBL101G–HDBL107G family. Pinout, solder pad layout, and mechanical mounting are fully interchangeable; only V_RRM and t_rr differ between variants. The HDBL103G marking code 'HDBL103G' appears on the top surface for visual identification.

Does HDBL103G meet automotive-grade reliability requirements?

HDBL103G itself is not AEC-Q101 qualified, but the pin-identical HDBL103GH variant is available for automotive applications. The 'H' suffix denotes full AEC-Q101 stress testing including temperature cycling, HTRB, and ESD. For cabin electronics such as HVAC controls or infotainment power rails, specify HDBL103GH - the HDBL103G part remains suitable for industrial and consumer use where AEC-Q101 is not mandated.

What is the typical forward voltage drop of HDBL103G at 1A and 125°C junction temperature?

While the HDBL103G datasheet specifies V_F = 1.0V (typ) at I_F = 1A and T_J = 25°C, forward voltage decreases with rising temperature due to silicon's negative tempco. At T_J = 125°C, V_F drops to approximately 0.85V per diode - resulting in ~3.4V total bridge drop reduction versus room-temperature operation. This behavior is confirmed in Figure 4 (Typical Forward Characteristics) of the HDBL103G datasheet.

How does the glass passivation in HDBL103G improve long-term reliability?

Glass passivation in HDBL103G forms a hermetic, chemically inert barrier over the silicon junction, preventing sodium ion migration, moisture ingress, and surface contamination - all leading causes of parametric drift and premature failure in humid or polluted environments. This process extends mean time to failure (MTTF) in outdoor LED drivers and industrial controls, and is validated by TSC's 1000-hour HAST testing. The HDBL103G construction eliminates need for conformal coating in many mid-tier applications.

HDBL103G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 4-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Active

Diode Type:: Single Phase

Technology:: Standard

Voltage - Peak Reverse (Max):: 200 V

Current - Average Rectified (Io):: 1 A

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

Current - Reverse Leakage @ Vr:: 5 µA @ 200 V

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DBL

HDBL103G FAQ

1.How can I place an order for HDBL103G through Aetrix?

Please submit a Request for Quotation (RFQ) for HDBL103G 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 HDBL103G reliable?

The price and inventory of HDBL103G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HDBL103G is usually 5 days.

3.What payment methods are accepted for HDBL103G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HDBL103G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HDBL103G?

HDBL103G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HDBL103G 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 HDBL103G?

For technical support, including HDBL103G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HDBL103G requirements.

6.How does Aetrix verify that HDBL103G is sourced from the original manufacturer or authorized distributors?

All HDBL103G 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 HDBL103G meets industry standards.

7.What is the process for return or replacement of HDBL103G?

All HDBL103G units undergo pre-shipment inspection (PSI). If there is an issue with HDBL103G, 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 HDBL103G part is unused and in its original packaging.

Return procedure for HDBL103G:

1.Submit a request within 90 days.

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

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