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Taiwan Semiconductor Corporation DBLS101G RDG
- Part No.:
- DBLS101G RDG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS101G RDG.pdf
- Description:
- BRIDGE RECT 1PHASE 50V 1A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:8,130
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Product details
Overview
DBLS101G from Taiwan Semiconductor is a 1A, 50V 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 in compact AC/DC front-ends for LED drivers and low-power adapters.
For engineers reviewing the DBLS101G datasheet, DBLS101G pinout, DBLS101G application, or DBLS101G equivalent, key selection criteria include repetitive peak reverse voltage (50V), thermal resistance (RθJA = 40°C/W), AEC-Q101 qualification availability, and tape-and-reel packaging for automated assembly.
Technical Context
The DBLS101G integrates four silicon diodes in a single-phase full-wave bridge configuration with quad-terminal layout. Its DBLS package uses matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
Rated for TJ = –55°C to +150°C operation, it delivers 1A average forward current with 15°C/W junction-to-lead thermal resistance and meets UL 94V-0 flammability and RoHS/halogen-free (IEC 61249-2-21) requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - maximum repetitive reverse voltage per diode; defines safe AC input voltage range in bridge topology |
| IF(AV) | 1 A - continuous average forward current; sets output power capability in SMPS front-end designs |
| IFSM | 40 A - non-repetitive surge rating (8.3ms half-sine); supports inrush current handling in offline converters |
| VF @ 1A | ≤1.1 V - forward voltage drop per diode; determines conduction loss and thermal load at rated current |
| IR @ 25°C | ≤2 µA - reverse leakage per diode; ensures minimal standby power loss in high-impedance circuits |
| RθJA | 40 °C/W - junction-to-ambient thermal resistance; guides PCB copper area and airflow requirements |
Pinout & Package
Package: DBLS - surface-mount molded plastic case (UL 94V-0), 4-terminal quad configuration, 0.360g weight, polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | Input AC terminal 1 | One of two alternating-current input nodes; connects to live or neutral line in bridge input |
| AC2 | Input AC terminal 2 | Second AC input node; completes full-wave rectification path with AC1 |
| + (Anode) | Positive DC output | Full-wave rectified positive rail; supplies downstream capacitor and regulator stages |
| – (Cathode) | Negative DC output | Common return path for DC output; referenced to system ground in most implementations |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | Enables use in automotive infotainment and body electronics where reliability validation is mandatory |
| UL Recognized (E-326854) | Confirms safety compliance for end-equipment certification in North America |
| J-STD-020 moisture level 1 | Eliminates pre-bake requirement before reflow, reducing manufacturing cost and cycle time |
| Matte tin-plated leads | Ensures robust solder joint formation and long-term intermetallic stability per J-STD-002 |
Applications
| LED Lighting Driver | USB Wall Adapter |
|---|---|
Use Scenario: AC input rectification stage in constant-current LED driver modules for residential/commercial lighting. IC Role / Device Role / Timing Role: Bridge rectifier converting 85–265VAC mains to pulsating DC prior to bulk capacitor and flyback controller. Use Value: Low VF (≤1.1V) minimizes conduction loss in thermally constrained LED housing; DBLS package enables high-density PCB layout. | Use Scenario: Input-stage rectification in 5W–10W universal-input AC/DC adapters powering USB-charged devices. IC Role / Device Role / Timing Role: Full-wave bridge providing unidirectional current to primary-side capacitor and PWM controller IC. Use Value: 40A IFSM withstands cold-start surges; UL recognition simplifies adapter safety certification. |
| Industrial Sensor Power Supply | Smart Home Hub AC Interface |
Use Scenario: Mains-powered industrial temperature/pressure sensor node requiring isolated 3.3V/5V supply. IC Role / Device Role / Timing Role: Primary-side rectifier feeding flyback transformer; operates continuously under ambient temperatures up to 70°C. Use Value: RθJA = 40°C/W allows reliable operation without heatsink on 2-layer PCB; halogen-free construction meets IPC standards. | Use Scenario: AC input conditioning in Wi-Fi/Zigbee smart home hubs with integrated power supply. IC Role / Device Role / Timing Role: Compact bridge rectifier enabling slim-profile enclosure design while meeting energy efficiency standby limits. Use Value: 2µA IR at 25°C reduces no-load power draw; tape-and-reel packaging supports high-volume SMT production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4A (ON Semiconductor) | Same 1A/50V rating, but GBU through-hole package (larger footprint, higher RθJA ≈ 50°C/W) | Preferred where manual assembly or legacy board reuse is required | Select DBLS101G for space-constrained SMT designs; GBU4A where thermal margin >10°C is needed or through-hole preferred |
| MB1S (Vishay) | 1A/50V, SMB surface-mount package; lower IFSM (30A vs. 40A), same VF/IR specs | Better suited for low-surge environments like battery backup systems | Choose DBLS101G when 40A surge headroom is critical; MB1S where SMB footprint compatibility is prioritized |
Compared with GBU4A and MB1S, the DBLS101G offers superior surge robustness in a compact SMT package, balanced thermal performance, and AEC-Q101 qualification option - making it optimal for next-generation compact, high-reliability AC/DC converters.
Availability
DBLS101G is available at Aetrix Electronics and suitable for LED lighting drivers, USB wall adapters, and industrial sensor power supplies requiring stable component supply, RoHS-compliant sourcing, and tape-and-reel delivery for automated placement.
Supply support for DBLS101G 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, computing, and consumer markets since 1979.
The DBLS series was developed specifically for high-density, cost-sensitive AC/DC front-end applications demanding reliability, regulatory compliance (UL, AEC-Q101), and consistent SMT manufacturability across voltage grades from 50V to 1000V.
FAQ
What is the maximum junction temperature rating for DBLS101G?
The DBLS101G has a maximum junction temperature (TJ MAX) of +150°C, allowing continuous operation in high-ambient environments such as enclosed LED fixtures or sealed industrial enclosures. This rating is validated under specified thermal conditions and must be maintained using appropriate PCB copper area and airflow per its RθJA = 40°C/W specification. Derating curves in the DBLS101G datasheet define allowable current versus ambient temperature.
Is DBLS101G pin-compatible with other DBLS-series rectifiers like DBLS102G or DBLS103G?
Yes - all DBLS-series rectifiers including DBLS101G, DBLS102G, and DBLS103G share identical DBLS package dimensions, pinout, and terminal configuration. Only the VRRM rating differs (50V, 100V, 200V respectively), so mechanical replacement is possible, but electrical validation is required to ensure reverse voltage margin sufficiency in the target application.
Does DBLS101G meet automotive-grade reliability requirements?
The DBLS101G itself is not AEC-Q101 qualified, but the DBLS101GH variant (same electrical specs, "H" suffix) is explicitly qualified per AEC-Q101. Engineers designing for automotive infotainment or body control modules should specify DBLS101GH to meet stress-test and lifetime reliability requirements mandated for automotive discrete components.
What is the meaning of the marking code "DBLS101G" on the device body?
The marking "DBLS101G" identifies the DBLS101G part: "DBLS" denotes the package type, "101" indicates 50V VRRM (1xx = 50V), and "G" signifies green (halogen-free) molding compound per IEC 61249-2-21. Date code and factory code appear separately on the device; full interpretation is provided in the DBLS101G package outline drawing (Version P2103).
How does the DBLS101G's thermal resistance compare to industry-standard alternatives?
The DBLS101G specifies RθJA = 40°C/W and RθJL = 15°C/W - competitive with leading SMT bridge rectifiers. For example, the MB1S has RθJA ≈ 45°C/W, while the GBU4A (through-hole) measures ~50°C/W. This 5–10°C/W advantage enables higher power density or relaxed cooling requirements in thermally constrained DBLS101G designs.
DBLS101G RDG 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):
- 50 V
- Current - Average Rectified (Io):
- 1 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 50 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DBLS
DBLS101G RDG FAQ
1.How can I place an order for DBLS101G RDG through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS101G RDG 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 DBLS101G RDG reliable?
The price and inventory of DBLS101G RDG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS101G RDG is usually 5 days.
3.What payment methods are accepted for DBLS101G RDG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS101G RDG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS101G RDG?
DBLS101G RDG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS101G RDG 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 DBLS101G RDG?
For technical support, including DBLS101G RDG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS101G RDG requirements.
6.How does Aetrix verify that DBLS101G RDG is sourced from the original manufacturer or authorized distributors?
All DBLS101G RDG 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 DBLS101G RDG meets industry standards.
7.What is the process for return or replacement of DBLS101G RDG?
All DBLS101G RDG units undergo pre-shipment inspection (PSI). If there is an issue with DBLS101G RDG, 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 DBLS101G RDG part is unused and in its original packaging.
Return procedure for DBLS101G RDG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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