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Taiwan Semiconductor Corporation DBLS105G
- Part No.:
- DBLS105G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS105G.pdf
- Description:
- BRIDGE RECT 1PHASE 600V 1A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:2,809
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Product details
Overview
DBLS105G from Taiwan Semiconductor is a 1A, 600V repetitive peak reverse voltage (VRRM) standard quad bridge rectifier in DBLS package, with 40A peak forward surge current (IFSM), 1.1V max forward voltage at 1A, and 2µA max reverse current at 25°C - used in AC/DC front-end rectification for LED drivers and industrial power adapters.
For engineers reviewing the DBLS105G datasheet, DBLS105G pinout, DBLS105G application, or DBLS105G equivalent, key selection criteria include VRRM rating, IFSM capability, thermal resistance (RθJL = 15°C/W), RoHS/halogen-free compliance, and AEC-Q101 qualification availability (DBLS105GH variant).
Technical Context
The DBLS105G integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling direct AC-to-DC conversion without external interconnection. Its molded DBLS package supports surface-mount assembly and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.
Designed for operation from –55°C to +150°C junction temperature, it delivers stable performance under transient surge conditions (8.3ms half-sine, 40A) and maintains low leakage (≤100µA at 125°C) across its rated 600V reverse voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum repetitive reverse voltage the device blocks per diode leg; defines safe AC input voltage ceiling (e.g., 424V RMS sine wave) |
| IF | 1 A - continuous average forward current per bridge; determines steady-state power dissipation (P ≈ 1.1W at 1A) |
| IFSM | 40 A - non-repetitive surge current handling; supports inrush limiting in SMPS startup without failure |
| VF (max) | 1.1 V @ 1A, 25°C - forward voltage drop per diode; impacts conduction loss and thermal design margin |
| RθJL | 15 °C/W - junction-to-lead thermal resistance; enables direct PCB copper pour heat sinking without heatsink |
| IR (max) | 2 µA @ 25°C - reverse leakage per diode; critical for high-impedance hold-up or sensing circuits |
| TJ max | +150 °C - maximum allowable junction temperature; sets derating curve for ambient operation up to +105°C |
Pinout & Package
Package: DBLS - surface-mount, 4-terminal molded plastic case with matte tin-plated leads, UL 94V-0 rated, 0.360g weight, polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC input terminal 1 | One side of AC input winding; connects to transformer secondary or line filter output |
| ~AC2 | AC input terminal 2 | Other side of AC input winding; completes full-wave bridge AC path |
| +DC | Positive DC output | Rectified positive rail; feeds bulk capacitor or PFC stage input |
| –DC | Negative DC output / common reference | Rectified return path; serves as system ground reference for downstream regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option | DBLS105GH variant available - validated for automotive under-hood power supplies requiring stress-tested reliability |
| High IFSM rating | 40A surge capacity - withstands cold-start surges in 100W+ adapters without bond wire fusing |
| Low RθJL | 15°C/W junction-to-lead - allows >0.8W continuous dissipation using only 100mm² 2oz copper pad |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS - meets environmental compliance for global industrial shipments |
| UL Recognized | File #E-326854 - satisfies safety agency requirements for end-equipment certification without additional component-level testing |
Applications
| LED Lighting Driver | Industrial AC/DC Adapter |
|---|---|
Use Scenario: Rectifying 120/230VAC mains into DC bus for constant-current LED driver ICs in streetlight and high-bay fixtures. IC Role / Device Role / Timing Role: Primary AC/DC conversion element; provides isolated DC input to buck or flyback controller. Use Value: 600V VRRM safely handles 230VAC +30% line surge; 40A IFSM absorbs lamp-strike transients without degradation. | Use Scenario: Front-end rectification in DIN-rail mounted 24V/48V industrial power supplies powering PLC I/O modules. IC Role / Device Role / Timing Role: Uncontrolled full-wave bridge; establishes bulk DC link prior to active PFC or DC/DC conversion. Use Value: 15°C/W RθJL enables convection-only cooling in sealed enclosures; UL recognition simplifies end-product safety approval. |
| Consumer Wall Adapter | Appliance Power Supply |
Use Scenario: Compact 12V/1A wall plug-in adapter for smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Mains-side rectifier feeding capacitor-input filter and linear or switching regulator. Use Value: DBLS package footprint minimizes board area vs. discrete diode bridges; 1.1V VF limits self-heating in space-constrained enclosures. | Use Scenario: Auxiliary power supply in washing machines and refrigerators converting AC to 5V/12V control rails. IC Role / Device Role / Timing Role: Input-stage bridge rectifier in transformer-isolated offline SMPS. Use Value: –55°C to +150°C operating range ensures reliability across appliance thermal cycles; halogen-free construction meets regional material restrictions. |
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 1A/600V rating, but GBU package (larger, through-hole); RθJA = 50°C/W vs. DBLS105G's 40°C/W | Requires PCB hole drilling and wave soldering; less suitable for high-density SMT lines | Select when legacy through-hole assembly is mandated or higher surge margin (60A IFSM) is required |
| GBU6J (Vishay) | Identical 1A/600V specs, GBU package; VF = 1.05V typ (slightly lower conduction loss), IR = 5µA max at 25°C (higher leakage) | Same mounting constraints; slightly tighter VF tolerance may reduce thermal load in thermally limited designs | Prefer when marginal thermal headroom exists and VF consistency is prioritized over leakage-critical sensing paths |
Compared with GBU6K and GBU6J, the DBLS105G offers superior SMT manufacturability, lower thermal resistance for compact layouts, and halogen-free compliance - making it optimal for modern, high-volume, space-constrained AC/DC converters where surface-mount efficiency and environmental compliance are mandatory.
Availability
DBLS105G is available at Aetrix Electronics and suitable for LED lighting drivers, industrial AC/DC adapters, and consumer wall adapters requiring stable component supply, RoHS/halogen-free compliance, and AEC-Q101-qualified variants (DBLS105GH).
Supply support for DBLS105G 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.
The DBLS101G–DBLS107G series targets cost-sensitive, high-reliability AC/DC front-end applications - emphasizing robust surge handling, standardized SMT packaging, and regulatory compliance for global power supply designs.
FAQ
What is the peak repetitive reverse voltage rating of the DBLS105G?
The DBLS105G has a repetitive peak reverse voltage (VRRM) rating of 600 V. This value is explicitly specified in the Absolute Maximum Ratings table for the DBLS105G row and defines the maximum AC voltage the device can block during normal operation. It corresponds to a 424 V RMS sine-wave input, making it suitable for universal-input (90–264 VAC) power supplies with safety margin.
Does the DBLS105G have AEC-Q101 qualification?
The DBLS105G itself is not AEC-Q101 qualified, but the pin-compatible variant DBLS105GH is explicitly listed in the Ordering Information as AEC-Q101 qualified. The "H" suffix denotes automotive-grade stress testing per AEC-Q101 Rev D, including HTSL, TC, and UHAST. Standard DBLS105G is intended for industrial and commercial applications.
What is the forward voltage drop of the DBLS105G at rated current?
The DBLS105G has a maximum forward voltage (VF) of 1.1 V per diode at IF = 1 A and TJ = 25°C, as stated in the Electrical Specifications table. This is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating. At elevated temperatures or higher currents, VF decreases slightly due to negative temperature coefficient behavior typical of silicon diodes.
How does the thermal performance of DBLS105G compare to standard GBU packages?
The DBLS105G has a junction-to-lead thermal resistance (RθJL) of 15°C/W and junction-to-ambient (RθJA) of 40°C/W, measured on standard JEDEC test boards. In contrast, comparable GBU-series bridges typically specify RθJA ≈ 50°C/W. The lower RθJA enables higher power dissipation in compact SMT layouts without forced airflow or heatsinks, improving reliability in sealed enclosures.
What is the marking code and polarity identification for DBLS105G?
The DBLS105G is marked "DBLS105G" on the top surface, with "G" indicating green molding compound. Polarity is indicated by a cathode band adjacent to the +DC terminal, and the ~AC1/~AC2 terminals are unmarked but positioned diagonally opposite +DC/–DC per standard bridge layout. The Marking Diagram in the datasheet confirms this orientation for all DBLS-series devices.
DBLS105G 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 FAQ
1.How can I place an order for DBLS105G through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS105G 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 reliable?
The price and inventory of DBLS105G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS105G is usually 5 days.
3.What payment methods are accepted for DBLS105G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS105G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS105G?
DBLS105G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS105G 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?
For technical support, including DBLS105G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS105G requirements.
6.How does Aetrix verify that DBLS105G is sourced from the original manufacturer or authorized distributors?
All DBLS105G 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 meets industry standards.
7.What is the process for return or replacement of DBLS105G?
All DBLS105G units undergo pre-shipment inspection (PSI). If there is an issue with DBLS105G, 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 part is unused and in its original packaging.
Return procedure for DBLS105G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DBLS105G Tags
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