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Taiwan Semiconductor Corporation DBLS205GH
- Part No.:
- DBLS205GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS205GH.pdf
- Description:
- BRIDGE RECT 1PHASE 600V 2A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
DBLS205GH from Taiwan Semiconductor is a 2 A, 600 V repetitive peak reverse voltage (VRRM) standard quad bridge rectifier in DBLS surface-mount package, featuring 50 A peak surge current (IFSM), 1.15 V max forward voltage at 2 A, and AEC-Q101 qualification for automotive-grade reliability - used in compact AC/DC front-end stages of LED drivers and industrial adapters.
For engineers reviewing the DBLS205GH datasheet, DBLS205GH pinout, DBLS205GH application, or DBLS205GH equivalent, key selection criteria include VRRM = 600 V, IF = 2 A, AEC-Q101 compliance, thermal resistance RθJA = 40 °C/W, and DBLS package compatibility with high-density PCB layouts.
Technical Context
This device integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling AC-to-DC conversion without external interconnection. Its molded DBLS package supports automated SMT assembly and provides UL 94V-0 flammability rating with matte tin-plated leads compliant to J-STD-002 solderability.
Thermal performance is defined by RθJL = 15 °C/W (junction-to-lead) and RθJA = 40 °C/W (junction-to-ambient), allowing continuous operation up to TJ = 150 °C. Reverse leakage remains ≤2 µA at 25 °C and ≤500 µA at 125 °C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum non-repetitive reverse voltage the bridge withstands without breakdown; sets AC input voltage limit (e.g., 424 VRMS sine wave) |
| IF | 2 A - average forward current per diode path; defines continuous DC output capability in rectifier stage |
| IFSM | 50 A - peak surge current for 8.3 ms half-sine; enables robustness against line transients and inrush |
| VF (max) | 1.15 V @ 2 A, 25 °C - forward drop per diode; determines conduction loss (≈2.3 W total bridge loss at full load) |
| TJ max | 150 °C - maximum junction temperature; constrains thermal design margin and heatsinking requirements |
| RθJA | 40 °C/W - thermal resistance from junction to ambient; used to calculate temperature rise on standard FR-4 PCB |
Pinout & Package
Package: DBLS - surface-mount, 4-terminal molded plastic case with gull-wing leads, UL 94V-0 rated, 0.360 g typical 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 AC line input |
| AC2 | AC input terminal 2 | Second leg of AC input; completes full-wave bridge AC path |
| + (Anode) | Positive DC output | Full-wave rectified positive rail; supplies downstream filter capacitor and regulator |
| – (Cathode) | Negative DC output / common return | DC ground reference point; ties to system common and EMI filter return |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics requiring extended temperature cycling, humidity, and mechanical stress testing |
| Moisture sensitivity level 1 | No bake preconditioning required before reflow; compatible with standard J-STD-020 handling |
| UL Recognized (E-326854) | Meets safety standards for end-equipment certification including lighting and industrial power supplies |
| Halogen-free construction | Complies with IEC 61249-2-21; eliminates brominated flame retardants for RoHS and environmental compliance |
Applications
| LED Driver Power Supply | Industrial AC/DC Adapter |
|---|---|
Use Scenario: Constant-current LED driver operating from universal AC input (85–265 VAC) in outdoor signage. IC Role / Device Role / Timing Role: Primary bridge rectifier converting AC line to unregulated DC bus prior to PFC and buck converter stages. Use Value: 600 V VRRM ensures margin over 265 VAC peak (375 V), while 2 A IF supports up to 40 W output with low conduction loss. | Use Scenario: DIN-rail mounted 24 V/2 A industrial adapter powering PLC I/O modules. IC Role / Device Role / Timing Role: Input-stage full-wave rectifier in non-isolated flyback or forward converter topology. Use Value: AEC-Q101 qualification and 150 °C TJ max enable reliable operation in high-ambient enclosures without derating. |
| Automotive Cabin Lighting | Smart Home Power Module |
Use Scenario: 12 V DC-powered interior LED lighting system fed from vehicle battery via buck converter. IC Role / Device Role / Timing Role: Bridge rectifier in auxiliary AC input path for dual-source (AC + DC) cabin lighting control unit. Use Value: Matte tin plating and JESD 201 Class 2 whisker resistance ensure long-term solder joint integrity in vibration-prone environments. | Use Scenario: Compact wall-mounted smart switch with integrated AC/DC power supply for Zigbee/Z-Wave radio and MCU. IC Role / Device Role / Timing Role: Space-constrained bridge rectifier in ultra-thin form factor where DBLS footprint minimizes board area. Use Value: DBLS package height <1.8 mm and 0.360 g weight support slim mechanical designs without sacrificing surge robustness (50 A IFSM). |
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 2 A / 600 V rating but GBU through-hole package; higher RθJA ≈ 50 °C/W; no AEC-Q101 qualification | Preferred for prototyping or legacy through-hole designs; unsuitable for automotive production | Select DBLS205GH when SMT automation, AEC-Q101 compliance, or lower thermal resistance is required |
| MB6S (Vishay) | 2 A / 600 V, SMB package; slightly higher VF (1.2 V typ); not AEC-Q101 qualified; moisture sensitivity level 2a | Suitable for cost-sensitive consumer adapters; requires baking before reflow | Choose DBLS205GH for automotive or industrial use where reliability, moisture tolerance, and thermal performance are critical |
Compared with GBU6K and MB6S, DBLS205GH delivers superior thermal management (RθJA = 40 °C/W), guaranteed automotive qualification, and zero-moisture-preconditioning handling - making it the preferred choice for space-constrained, high-reliability AC/DC front ends.
Availability
DBLS205GH is available at Aetrix Electronics and suitable for LED driver power supplies, industrial AC/DC adapters, and automotive cabin lighting systems requiring stable component supply across multi-year production cycles.
Supply support for DBLS205GH 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 power, automotive, and industrial markets since 1979.
The DBLS series was designed specifically for high-efficiency, surface-mount bridge rectification in space-constrained and thermally demanding applications - emphasizing AEC-Q101 reliability, UL safety recognition, and SMT manufacturability.
FAQ
What is the peak repetitive reverse voltage rating for DBLS205GH?
The DBLS205GH has a repetitive peak reverse voltage (VRRM) rating of 600 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2103), and defines the maximum instantaneous reverse voltage the device can block during normal operation without breakdown. It corresponds to the "205" in the part number, where '5' indicates the 600 V grade within the DBLS201G–DBLS209G family.
Is DBLS205GH qualified for automotive applications?
Yes, DBLS205GH is AEC-Q101 qualified, as explicitly stated in the FEATURES section and ORDERING INFORMATION notes of the Taiwan Semiconductor datasheet. The "H" suffix denotes AEC-Q101 qualification, covering stress tests including temperature cycling, high-temperature reverse bias, and mechanical shock - making DBLS205GH suitable for automotive cabin power modules, lighting controllers, and body electronics.
What is the forward voltage drop of DBLS205GH at rated current?
At IF = 2 A and TJ = 25 °C, the maximum forward voltage (VF) per diode in DBLS205GH is 1.15 V, as specified in the ELECTRICAL SPECIFICATIONS table. Since the device is a full-wave bridge, the total conduction path includes two series diodes, resulting in a worst-case forward drop of approximately 2.3 V across the bridge terminals under full-load DC conditions.
Does DBLS205GH require moisture preconditioning before reflow soldering?
No, DBLS205GH has a moisture sensitivity level (MSL) of 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions (<30 °C / 60% RH) without baking or dry-pack requirements. This eliminates pre-reflow bake steps and simplifies manufacturing flow - a verified specification listed in the FEATURES section of the official datasheet.
What is the thermal resistance from junction to ambient for DBLS205GH?
The junction-to-ambient thermal resistance (RθJA) for DBLS205GH is 40 °C/W, measured under standard JEDEC test conditions on a 1-inch² copper pad. This value is published in the THERMAL PERFORMANCE section of the datasheet and is critical for calculating allowable power dissipation and ensuring safe junction temperature under real-world PCB layouts.
DBLS205GH 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):
- 2 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 2 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 600 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DBLS
DBLS205GH FAQ
1.How can I place an order for DBLS205GH through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS205GH 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 DBLS205GH reliable?
The price and inventory of DBLS205GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS205GH is usually 5 days.
3.What payment methods are accepted for DBLS205GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS205GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS205GH?
DBLS205GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS205GH 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 DBLS205GH?
For technical support, including DBLS205GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS205GH requirements.
6.How does Aetrix verify that DBLS205GH is sourced from the original manufacturer or authorized distributors?
All DBLS205GH 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 DBLS205GH meets industry standards.
7.What is the process for return or replacement of DBLS205GH?
All DBLS205GH units undergo pre-shipment inspection (PSI). If there is an issue with DBLS205GH, 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 DBLS205GH part is unused and in its original packaging.
Return procedure for DBLS205GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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