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Taiwan Semiconductor Corporation DBLS102G
- Part No.:
- DBLS102G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS102G.pdf
- Description:
- BRIDGE RECT 1PHASE 100V 1A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:3,458
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Product details
Overview
DBLS102G from Taiwan Semiconductor is a 1A, 100V rated standard bridge rectifier in DBLS surface-mount package, featuring 40A peak surge current (IFSM), 1.1V max forward voltage at 1A, and 2µA max reverse leakage at 25°C - used for AC/DC conversion in compact offline power supplies.
For engineers reviewing the DBLS102G datasheet, DBLS102G pinout, DBLS102G application, or DBLS102G equivalent, key selection criteria include repetitive peak reverse voltage (VRRM = 100V), thermal resistance (RθJA = 40°C/W), AEC-Q101 qualification availability, and tape-and-reel packaging for automated assembly.
Technical Context
The DBLS102G integrates four silicon diodes in a single-phase full-wave bridge configuration with quad terminal layout. Its DBLS package uses molded plastic (UL 94V-0) and matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
It operates across -55°C to +150°C junction temperature range, supports 8.3ms half-sine surge events up to 40A, and delivers stable performance under SMPS switching conditions with 25pF typical junction capacitance per diode at 1MHz/4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse voltage the bridge can block without breakdown |
| IF | 1 A - continuous average forward output current capability |
| IFSM | 40 A - non-repetitive peak surge current tolerance for 8.3ms half-sine waveform |
| VF (max) | 1.1 V - maximum forward voltage drop per diode at 1A, defining conduction loss in rectification stage |
| IR (max) | 2 µA - maximum reverse leakage current per diode at 25°C and rated VR, critical for low-power standby efficiency |
| RθJA | 40 °C/W - junction-to-ambient thermal resistance, determining required PCB copper area for thermal management |
| TJ max | +150 °C - maximum allowable junction temperature, enabling operation in high-ambient industrial environments |
Pinout & Package
Package: DBLS - surface-mount, 4-terminal molded plastic case (UL 94V-0), 0.360g weight, polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC input terminal 1 | One leg of AC input; connects to transformer secondary or line input |
| ~AC2 | AC input terminal 2 | Second leg of AC input; completes full-wave bridge input path |
| +DC | Positive DC output | Rectified positive output node; feeds bulk capacitor or downstream regulator |
| -DC | Negative DC output / common return | Rectified negative output node; serves as circuit ground reference point |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option | DBLS102GH variant available for automotive-grade reliability validation and extended temperature cycling |
| High surge robustness | 40A IFSM rating enables reliable startup into capacitive loads and transient line surges in SMPS |
| Low moisture sensitivity | MSL Level 1 per J-STD-020 - no bake requirement before reflow, simplifying SMT manufacturing |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive - suitable for green electronics compliance programs |
Applications
| LED Driver Power Supply | USB Wall Adapter |
|---|---|
Use Scenario: AC-to-DC conversion for constant-current LED drivers in commercial lighting fixtures. IC Role / Device Role / Timing Role: Bridge rectifier converting 85–265V AC mains to pulsating DC prior to PFC and buck stages. Use Value: 100V VRRM and 40A IFSM ensure margin against line transients and inrush during hot-plug operation. | Use Scenario: Input rectification in compact 5V/2.4A USB charging adapters. IC Role / Device Role / Timing Role: Full-wave bridge providing unidirectional current to bulk capacitor and primary-side controller. Use Value: Low VF (≤1.1V) minimizes conduction loss in space-constrained designs where thermal dissipation is limited. |
| Industrial Sensor Power Module | White Goods Control Board |
Use Scenario: Mains-powered sensor interface modules requiring long-term reliability in factory environments. IC Role / Device Role / Timing Role: Primary rectification stage feeding isolated DC-DC converter powering microcontroller and analog front-end. Use Value: -55°C to +150°C operating range and UL recognition support deployment in wide-temperature industrial enclosures. | Use Scenario: Power supply for control boards in washing machines and refrigerators. IC Role / Device Role / Timing Role: AC input rectifier supplying logic rails and relay drivers via linear or switching regulators. Use Value: Matte tin-plated leads and JESD 201 Class 2 whisker resistance prevent field failures due to intermetallic growth under vibration and thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU2K | Higher VRRM (200V), same IF (1A), larger GBU package (through-hole), RθJA ≈ 50°C/W | Requires PCB through-hole mounting and more board area; less suitable for high-density SMT layouts | Select when higher voltage margin is needed and through-hole assembly is acceptable |
| GBU2A | Same VRRM (100V), same IF (1A), identical GBU package but lower IFSM (30A vs. 40A) | Limited surge handling in high-inrush applications like motor-driven appliances | Acceptable for low-surge, cost-sensitive consumer applications where DBLS102G's 40A headroom is unused |
Compared with GBU2K and GBU2A, the DBLS102G offers superior surge robustness in a compact surface-mount footprint, enabling smaller PCBs and automated assembly - while maintaining identical 100V/1A ratings for direct functional substitution in most AC/DC front-ends.
Availability
DBLS102G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and USB adapter designs requiring stable component supply, consistent lead-time visibility, and full traceability.
Supply support for DBLS102G 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 semiconductor manufacturer specializing in discrete power devices and analog ICs, headquartered in Hsinchu, Taiwan.
The DBLS series targets cost-sensitive, high-volume AC/DC front-end applications - designed for reliability in compact SMT power supplies with emphasis on surge immunity, thermal performance, and regulatory compliance (UL, RoHS, AEC-Q101).
FAQ
What is the peak repetitive reverse voltage rating for DBLS102G?
The DBLS102G has a repetitive peak reverse voltage (VRRM) rating of 100 V. This value defines the maximum AC voltage the device can block in reverse bias without entering avalanche breakdown. It is confirmed in the Absolute Maximum Ratings table on page 2 of the official Taiwan Semiconductor DBLS101G–DBLS107G datasheet (Version P2103). The DBLS102G is part of a family spanning 50V to 1000V, with "102" indicating the 100V grade.
Is DBLS102G suitable for automotive applications?
Yes - the DBLS102GH variant (with 'H' suffix) is AEC-Q101 qualified and approved for automotive use. The base DBLS102G is not AEC-Q101 certified, but shares identical electrical and thermal specifications. For automotive designs requiring qualification, specify DBLS102GH; both variants use the same DBLS package and pinout, enabling design reuse with only part number and sourcing changes.
What is the forward voltage drop of DBLS102G at rated current?
The DBLS102G exhibits a maximum forward voltage (VF) of 1.1 V per diode at IF = 1 A and TJ = 25°C, as specified in the Electrical Specifications table. This value reflects worst-case conduction loss under nominal load and ambient conditions. Actual VF decreases with lower temperature and increases slightly at higher junction temperatures, remaining within design margins for typical SMPS rectification stages.
Does DBLS102G require pre-baking before reflow soldering?
No - the DBLS102G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it is not moisture-sensitive and may be stored indefinitely at ambient conditions without baking. This eliminates pre-reflow bake steps in SMT manufacturing, reducing process complexity and cycle time while ensuring solder joint integrity on the DBLS102G's matte tin-plated leads.
What is the thermal resistance from junction to ambient for DBLS102G?
The DBLS102G has a junction-to-ambient thermal resistance (RθJA) of 40°C/W, measured under standard JEDEC test conditions (single-layer 1-inch² copper pad). This value guides PCB thermal design: for example, at 1A DC load with 1.1V VF, power dissipation is ~1.1W, resulting in ~44°C junction-to-ambient rise - requiring adequate copper area and airflow to maintain TJ ≤ 150°C in final application.
DBLS102G 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):
- 1 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 15 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 100 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DBLS
DBLS102G FAQ
1.How can I place an order for DBLS102G through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS102G 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 DBLS102G reliable?
The price and inventory of DBLS102G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS102G is usually 5 days.
3.What payment methods are accepted for DBLS102G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS102G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS102G?
DBLS102G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS102G 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 DBLS102G?
For technical support, including DBLS102G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS102G requirements.
6.How does Aetrix verify that DBLS102G is sourced from the original manufacturer or authorized distributors?
All DBLS102G 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 DBLS102G meets industry standards.
7.What is the process for return or replacement of DBLS102G?
All DBLS102G units undergo pre-shipment inspection (PSI). If there is an issue with DBLS102G, 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 DBLS102G part is unused and in its original packaging.
Return procedure for DBLS102G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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