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Taiwan Semiconductor Corporation DBLS204GH
- Part No.:
- DBLS204GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS204GH.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 2A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:2,850
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Product details
Overview
DBLS204GH from Taiwan Semiconductor is a 2 A, 400 V repetitive peak reverse voltage (VRRM) AEC-Q101 qualified standard bridge rectifier in DBLS surface-mount package. It delivers 50 A peak forward surge current (IFSM), supports -55°C to +150°C junction temperature range, and is rated for switching mode power supplies requiring robust AC-DC conversion.
For engineers reviewing the DBLS204GH datasheet, DBLS204GH pinout, DBLS204GH application, or DBLS204GH equivalent, key selection criteria include VRRM = 400 V, IF = 2 A, VF ≤ 1.15 V at 2 A/25°C, IFSM = 50 A, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This quad-configuration bridge rectifier integrates four silicon diodes in a single DBLS molded plastic package with matte tin-plated leads. It operates with a maximum junction temperature of 150°C and exhibits RθJL = 15°C/W and RθJA = 40°C/W thermal resistance.
Electrical behavior is defined per diode: forward voltage is specified at IF = 2 A and TJ = 25°C; reverse leakage is ≤2 µA at 25°C and ≤500 µA at 125°C under rated VR; fusing I²t rating is 10.3 A²s for t < 8.3 ms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum non-repetitive reverse voltage the device blocks without breakdown |
| IF | 2 A - Continuous average forward current rating per bridge configuration |
| IFSM | 50 A - Peak surge current handling capability for 8.3 ms half-sine wave |
| VF | ≤1.15 V - Forward voltage drop per diode at 2 A and 25°C, directly impacting conduction loss |
| TJ max | +150°C - Maximum allowable junction temperature, enabling high-ambient operation |
| I²t | 10.3 A²s - Fusing integral defining short-circuit withstand capability |
| RθJL | 15°C/W - Junction-to-lead thermal resistance, critical for PCB copper pour design |
Pinout & Package
Package: DBLS - Surface-mount, molded plastic case meeting UL 94V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC input terminal 1 | One of two alternating-current input connections; polarity-marked on device body |
| ~AC2 | AC input terminal 2 | Second AC input connection; forms full-wave rectification path with ~AC1 |
| + | DC output anode | Positive DC output node; connects to load or filter capacitor positive rail |
| – | DC output cathode | Common return/ground reference for DC output; ties to circuit ground or capacitor negative |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, lighting, and infotainment power stages |
| High IFSM (50 A) | Enables reliable startup and transient overload handling in SMPS without fuse coordination issues |
| Low VF (≤1.15 V) | Reduces conduction losses and thermal stress in compact, thermally constrained layouts |
| UL Recognition (E-326854) | Confirms safety compliance for end-equipment certification in North America |
| Halogen-free construction | Meets IEC 61249-2-21 requirements for environmentally compliant manufacturing and disposal |
Applications
| Automotive LED Headlamp Power Supply | Industrial AC-DC Adapter |
|---|---|
Use Scenario: Converts 12 VAC or 24 VAC auxiliary supply to regulated DC for high-brightness LED arrays in vehicle headlamps. IC Role / Device Role / Timing Role: Bridge rectifier providing full-wave AC-DC conversion prior to buck or linear regulation. Use Value: AEC-Q101 qualification ensures reliability across automotive temperature and vibration profiles; 400 V VRRM accommodates line transients up to ±200 V. | Use Scenario: Front-end rectification stage in universal-input (85–265 VAC) industrial adapters powering PLC I/O modules. IC Role / Device Role / Timing Role: Standard bridge rectifier converting mains AC to unregulated DC bus for downstream PFC and DC-DC stages. Use Value: 50 A IFSM withstands inrush currents from large bulk capacitors; DBLS package enables automated SMT assembly and high board density. |
| Smart Building Lighting Driver | Appliance Power Module |
Use Scenario: Rectifies AC line input in DALI- or 0–10 V dimmable LED drivers used in commercial ceiling fixtures. IC Role / Device Role / Timing Role: Primary AC-DC conversion element feeding constant-current LED driver ICs. Use Value: 2 A continuous rating supports up to 25 W output; RoHS and halogen-free compliance meets EU building product directives. | Use Scenario: Mains rectification in white-goods control boards (e.g., washing machine mainboard power supply). IC Role / Device Role / Timing Role: Input-stage bridge rectifier delivering DC bus to 5 V/3.3 V LDOs and microcontrollers. Use Value: 150°C TJ max allows operation near heat-generating motor drivers; UL recognition simplifies end-product safety approval. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4K (ON Semiconductor) | VRRM = 800 V, IF = 4 A, larger GBU package, no AEC-Q101 | Higher voltage margin but not automotive-qualified; requires PCB layout change | Preferred where higher VRRM headroom is needed and automotive qualification is unnecessary |
| MB2S (Vishay) | VRRM = 400 V, IF = 0.5 A, smaller MB-S package, no AEC-Q101 | Lower current rating limits use to sub-5 W designs; lacks automotive validation | Suitable only for low-power consumer adapters where AEC-Q101 and 2 A rating are not required |
Compared with GBU4K and MB2S, DBLS204GH uniquely combines 400 V VRRM, 2 A IF, AEC-Q101 qualification, and compact DBLS packaging-making it optimal for space-constrained, automotive-qualified 10–25 W AC-DC power stages where reliability and regulatory alignment are mandatory.
Availability
DBLS204GH is available at Aetrix Electronics and suitable for automotive lighting, industrial adapters, smart building drivers, and appliance power modules requiring stable component supply with AEC-Q101 assurance and SMT-compatible packaging.
Supply support for DBLS204GH 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 AC-DC front-end rectification in automotive and industrial power supplies-emphasizing AEC-Q101 compliance, thermal robustness, and automated assembly compatibility.
FAQ
What is the peak repetitive reverse voltage rating for DBLS204GH?
The DBLS204GH has a repetitive peak reverse voltage (VRRM) rating of 400 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2103), where DBLS204G is explicitly listed with VRRM = 400 V. It defines the maximum instantaneous reverse voltage the device can block repeatedly without breakdown under normal operating conditions.
Is DBLS204GH qualified to AEC-Q101 standards?
Yes, DBLS204GH is AEC-Q101 qualified. The "H" suffix in the ordering code explicitly denotes AEC-Q101 qualification per Taiwan Semiconductor's Ordering Information table. This qualification covers stress testing for temperature cycling, humidity bias, high-temperature operating life, and mechanical shock-validating DBLS204GH for automotive power electronics applications.
What is the forward voltage drop of DBLS204GH at rated current?
The forward voltage drop (VF) of DBLS204GH is ≤1.15 V per diode at IF = 2 A and TJ = 25°C, as specified in the Electrical Specifications table for DBLS201G–DBLS207G. This value reflects conduction loss under typical operating conditions and is measured using a 0.3 ms pulse test, ensuring relevance to real-world switching power supply duty cycles.
What package type does DBLS204GH use, and what are its key mechanical features?
DBLS204GH uses the DBLS surface-mount package-a molded plastic case rated UL 94V-0. Key mechanical features include matte tin-plated leads compliant with J-STD-002 solderability, JESD 201 Class 2 whisker resistance, polarity marking on the device body, and a weight of approximately 0.360 g. The package outline and pad layout are documented in the manufacturer's Package Outline Dimensions drawing.
Does DBLS204GH have any environmental compliance certifications?
Yes, DBLS204GH is RoHS compliant and halogen-free per IEC 61249-2-21. It also carries UL Recognition under File # E-326854 and meets moisture sensitivity level 1 per J-STD-020-ensuring suitability for lead-free reflow processes without baking. These certifications are explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet.
DBLS204GH 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):
- 400 V
- Current - Average Rectified (Io):
- 2 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 2 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 400 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DBLS
DBLS204GH FAQ
1.How can I place an order for DBLS204GH through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS204GH 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 DBLS204GH reliable?
The price and inventory of DBLS204GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS204GH is usually 5 days.
3.What payment methods are accepted for DBLS204GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS204GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS204GH?
DBLS204GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS204GH 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 DBLS204GH?
For technical support, including DBLS204GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS204GH requirements.
6.How does Aetrix verify that DBLS204GH is sourced from the original manufacturer or authorized distributors?
All DBLS204GH 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 DBLS204GH meets industry standards.
7.What is the process for return or replacement of DBLS204GH?
All DBLS204GH units undergo pre-shipment inspection (PSI). If there is an issue with DBLS204GH, 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 DBLS204GH part is unused and in its original packaging.
Return procedure for DBLS204GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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