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Taiwan Semiconductor Corporation DBLS202G C1G
- Part No.:
- DBLS202G C1G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS202G C1G.pdf
- Description:
- BRIDGE RECT 1PHASE 100V 2A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:4,813
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Product details
Overview
DBLS202G from Taiwan Semiconductor is a 2 A, 100 V repetitive peak reverse voltage (VRRM) standard quad bridge rectifier in DBLS surface-mount package, with 50 A peak surge current (IFSM), 1.15 V forward voltage at 2 A, and AEC-Q101 qualification option (DBLS202GH). It serves as AC-to-DC conversion core in compact offline power supplies.
For engineers reviewing the DBLS202G datasheet, DBLS202G pinout, DBLS202G application, or DBLS202G equivalent, key selection criteria include VRRM margin for line-voltage transients, thermal resistance (RθJL = 15 °C/W) for PCB copper area design, IFSM rating for inrush handling, and RoHS/halogen-free compliance for automotive and lighting end markets.
Technical Context
The DBLS202G integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling direct AC input rectification without external interconnects. Its DBLS molded plastic package features matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
Rated for -55 °C to +150 °C junction operation, it delivers 2 A average forward current with derating above 75 °C ambient, supported by RθJA = 40 °C/W and RθJL = 15 °C/W thermal paths - critical for thermally constrained SMT layouts in space-limited adapters and LED drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - supports 70 V RMS input (e.g., 100 VAC nominal systems) with ≥30% safety margin against line surges |
| IF | 2 A continuous - sustains steady-state output in sub-25 W SMPS and low-power LED ballasts |
| IFSM | 50 A (8.3 ms half-sine) - withstands cold-start inrush in capacitive-input rectifiers without failure |
| VF | 1.15 V @ 2 A, 25 °C - contributes ≤2.3 W conduction loss per device at full load, enabling thermally efficient layout |
| RθJL | 15 °C/W - allows direct thermal coupling to PCB copper pour for passive cooling in cost-sensitive designs |
| TJ(max) | +150 °C - enables operation in sealed enclosures or high-ambient environments like outdoor LED fixtures |
Pinout & Package
DBLS202G uses the DBLS surface-mount package: 4.2 mm × 4.2 mm × 2.7 mm body, gull-wing leads, UL 94V-0 molding compound, and polarity marked on top surface per device marking diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC input terminal 1 | One leg of AC input; connects to live/neutral side of transformer secondary or AC line |
| ~AC2 | AC input terminal 2 | Second leg of AC input; completes full-wave bridge input path |
| +DC | Positive DC output | Anode of output diodes; feeds bulk capacitor or downstream regulator |
| -DC | Negative DC output / common return | Cathode of output diodes; serves as system ground reference point |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | DBLS202GH meets stress-test requirements for automotive under-hood and lighting modules |
| UL Recognized (E-326854) | Validates flammability, electrical spacing, and long-term reliability for safety-critical power supplies |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking - reduces manufacturing overhead and floor-life risk |
| Halogen-free (IEC 61249-2-21) | Supports environmental compliance for EU, China RoHS, and Japan chemical regulations |
Applications
| LED Lighting Driver | USB Wall Adapter |
|---|---|
Use Scenario: Rectifying 120 VAC input in constant-current LED driver for commercial downlights. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element; replaces discrete diode bridge to reduce footprint and assembly steps. Use Value: 2 A rating matches typical 15–20 W output; 100 V VRRM provides margin over 120 VAC peak (170 V), minimizing risk of reverse breakdown during line spikes. | Use Scenario: Input-stage rectification in 5 V/2.4 A USB charger with flyback topology. IC Role / Device Role / Timing Role: Full-wave bridge delivering unregulated DC bus to primary-side controller and transformer. Use Value: 50 A IFSM safely handles 10× rated current during plug-in surge; DBLS package fits tight board space while maintaining thermal performance. |
| Industrial Control Power Supply | Appliance Auxiliary Power |
Use Scenario: Providing 12 V bias rail for PLC I/O modules operating in factory environments. IC Role / Device Role / Timing Role: Isolated AC input rectifier feeding linear or buck converter stage. Use Value: -55 °C to +150 °C TJ range ensures reliability across industrial temperature extremes; RθJL = 15 °C/W simplifies heatsinking via PCB copper. | Use Scenario: Generating standby 5 V rail in smart refrigerator mainboard. IC Role / Device Role / Timing Role: Low-power bridge rectifier for auxiliary SMPS powering microcontroller and sensors. Use Value: Halogen-free and RoHS-compliant construction meets appliance regulatory requirements; 0.36 g weight supports lightweight mechanical design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU2K (ON Semiconductor) | Same 2 A / 100 V rating, but GBU through-hole package (10.5 mm × 7.0 mm); higher RθJA (50 °C/W) | Requires PCB through-hole mounting and larger board area; less suitable for ultra-compact SMT-only designs | Select when legacy through-hole assembly is used or when higher surge margin (60 A IFSM) is prioritized over size |
| MB2S (Vishay) | 2 A / 100 V, SMB package (4.6 mm × 3.6 mm); slightly smaller footprint but lower IFSM (30 A) | Limited surge robustness in high-inrush applications; requires tighter thermal management due to higher RθJA | Choose for space-constrained consumer electronics where peak surge events are infrequent and controlled |
Compared with GBU2K and MB2S, DBLS202G offers optimal balance of SMT compatibility, 50 A surge capability, and 15 °C/W junction-to-lead thermal resistance - making it preferred for new-generation compact, thermally demanding, and automotive-qualified power supplies.
Availability
DBLS202G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and USB wall adapters requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for DBLS202G 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 industrial, automotive, and consumer markets since 1979.
The DBLS series was developed specifically for high-reliability, surface-mount bridge rectification in space-constrained AC/DC converters - emphasizing thermal efficiency, surge resilience, and regulatory compliance for automotive lighting and industrial power applications.
FAQ
What is the peak repetitive reverse voltage rating of DBLS202G?
The DBLS202G has a repetitive peak reverse voltage (VRRM) rating of 100 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2103), and applies specifically to the DBLS202G variant - distinct from other members of the DBLS201G–DBLS209G family which range from 50 V to 1400 V.
Is DBLS202G suitable for automotive applications?
Yes - the DBLS202GH variant is AEC-Q101 qualified and approved for automotive use. While the standard DBLS202G is not AEC-Q101 certified, its construction (moisture level 1, halogen-free, UL-recognized) and thermal specs (TJ = –55 °C to +150 °C) align with automotive subsystem requirements. For production automotive designs, specify DBLS202GH to ensure qualification compliance.
What is the forward voltage drop of DBLS202G at rated current?
The DBLS202G exhibits a maximum forward voltage (VF) of 1.15 V at 2 A forward current and 25 °C junction temperature, as specified in the Electrical Specifications table. This value is measured per diode under pulse conditions (PW = 0.3 ms), and represents the total conduction loss across two series diodes in the bridge path during conduction.
Does DBLS202G require special handling during PCB assembly?
No - DBLS202G has Moisture Sensitivity Level 1 per J-STD-020, meaning it can be stored and assembled using standard SMT reflow processes without baking or dry-pack requirements. Its matte tin-plated leads meet J-STD-002 solderability standards, ensuring reliable wetting and joint formation in lead-free or SnPb processes.
What is the thermal resistance from junction to ambient for DBLS202G?
The DBLS202G has a junction-to-ambient thermal resistance (RθJA) of 40 °C/W under standard JEDEC test conditions (single-layer 1 in² copper pad). This value assumes no additional copper pour; adding thermal vias and extended copper area reduces effective RθJA, improving power dissipation capability in real-world PCB layouts.
DBLS202G C1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 4-SMD, Gull Wing
- Packaging:
- Tube
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DBLS
DBLS202G C1G FAQ
1.How can I place an order for DBLS202G C1G through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS202G C1G 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 DBLS202G C1G reliable?
The price and inventory of DBLS202G C1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS202G C1G is usually 5 days.
3.What payment methods are accepted for DBLS202G C1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS202G C1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS202G C1G?
DBLS202G C1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS202G C1G 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 DBLS202G C1G?
For technical support, including DBLS202G C1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS202G C1G requirements.
6.How does Aetrix verify that DBLS202G C1G is sourced from the original manufacturer or authorized distributors?
All DBLS202G C1G 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 DBLS202G C1G meets industry standards.
7.What is the process for return or replacement of DBLS202G C1G?
All DBLS202G C1G units undergo pre-shipment inspection (PSI). If there is an issue with DBLS202G C1G, 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 DBLS202G C1G part is unused and in its original packaging.
Return procedure for DBLS202G C1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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