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Taiwan Semiconductor Corporation DBLS203GH
- Part No.:
- DBLS203GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS203GH.pdf
- Description:
- BRIDGE RECT 1PHASE 200V 2A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:9,280
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Product details
Overview
DBLS203GH from Taiwan Semiconductor is a 2 A, 200 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), features 1.15 V typical forward voltage per diode at 2 A and 25°C, and operates across –55°C to +150°C junction temperature range. It is used in automotive-grade AC/DC front-end stages of LED drivers and industrial SMPS.
For engineers reviewing the DBLS203GH datasheet, DBLS203GH pinout, DBLS203GH application, or DBLS203GH equivalent, key selection considerations include its AEC-Q101 qualification, 200 V VRRM, quad configuration, moisture sensitivity level 1 rating, and UL Recognized status (E-326854) for safety-critical power conversion designs.
Technical Context
This device integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling AC-to-DC conversion without external interconnects. Its DBLS molded plastic package supports automated SMT assembly and meets UL 94V-0 flammability requirements.
Thermal performance is defined by 15°C/W junction-to-lead (RθJL) and 40°C/W junction-to-ambient (RθJA) thermal resistance. Reverse leakage remains ≤2 µA at 25°C and ≤500 µA at 125°C under rated VR, supporting stable operation in thermally demanding environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse voltage the bridge withstands without breakdown; defines usable AC input range up to ~141 V RMS. |
| IF | 2 A - Continuous average forward current per bridge; determines steady-state power handling in conduction mode. |
| IFSM | 50 A - Peak surge current capability for 8.3 ms half-sine; enables robustness against line transients and inrush events. |
| VF (per diode) | 1.15 V typ @ 2 A, 25°C - Forward drop per series diode pair; directly impacts conduction loss and thermal design. |
| TJ max | +150°C - Maximum allowable junction temperature; sets upper limit for thermal management in enclosed or high-ambient applications. |
| RθJL | 15°C/W - Junction-to-lead thermal resistance; critical for estimating temperature rise when mounted on PCB copper pour or heatsink. |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements including HTSL, TC, HTRB, and UHAST. |
Pinout & Package
Package: DBLS - Surface-mount, 4-terminal molded plastic case with matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Dimensions per Taiwan Semiconductor outline drawing Rev. J2103.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC input terminal 1 | One leg of AC input; connects to transformer secondary or AC line; polarity-marked on top surface. |
| ~AC2 | AC input terminal 2 | Second leg of AC input; completes full-wave bridge input path; symmetric with ~AC1. |
| +DC | Positive DC output | Anode of internal diode pair delivering rectified positive output; routed to bulk capacitor or regulator input. |
| –DC | Negative DC output / common | Cathode of internal diode pair; serves as circuit ground reference and return path for load current. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and body electronics, enabling use in engine control modules and lighting ECUs without additional qualification effort. |
| UL Recognition (E-326854) | Confirms compliance with UL 60950-1/62368-1 insulation and flammability requirements for end-equipment safety certification. |
| Moisture Sensitivity Level 1 | Allows unlimited floor life before reflow; eliminates baking requirement and simplifies SMT manufacturing logistics. |
| Quad bridge integration | Reduces PCB footprint vs. discrete diode solutions; eliminates four solder joints and routing complexity for full-wave rectification. |
| Halogen-free construction | Meets IEC 61249-2-21; supports RoHS-compliant and environmentally regulated product programs globally. |
Applications
| LED Driver Power Supply | Automotive Cabin Lighting |
|---|---|
Use Scenario: Constant-current LED driver in 12 V automotive systems with AC-coupled auxiliary input or offline LED ballast. IC Role / Device Role / Timing Role: Bridge rectifier converting AC input to unregulated DC bus prior to buck or linear regulation stage. Use Value: AEC-Q101 qualification ensures reliability over vehicle lifetime; 200 V VRRM accommodates transient spikes up to ISO 7637-2 Pulse 1/2a. | Use Scenario: Interior dome light or map light module powered from vehicle battery with optional AC-powered backup. IC Role / Device Role / Timing Role: Full-wave rectifier in dual-input (DC+AC) power path, enabling seamless source switching without reverse polarity risk. Use Value: DBLS package provides mechanical stability during vibration; MSL-1 rating prevents popcorning during reflow in high-volume module assembly. |
| Industrial SMPS Front-End | White Goods Control Board |
Use Scenario: 24 V/48 V industrial switch-mode power supply for PLC I/O modules or sensor interfaces. IC Role / Device Role / Timing Role: Primary-side AC/DC conversion element feeding PFC or flyback controller IC. Use Value: 50 A IFSM withstands repeated cold-start surges; RθJL = 15°C/W enables direct thermal coupling to metal-core PCB for passive cooling. | Use Scenario: Control board in washing machine or refrigerator requiring isolated AC sensing and auxiliary DC rail generation. IC Role / Device Role / Timing Role: Rectifier for low-power auxiliary supply powering MCU, display, and communication ICs. Use Value: UL Recognition simplifies end-product safety approval; halogen-free material supports global eco-labeling (e.g., Energy Star, EPEAT). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU2K | Same 2 A / 200 V rating, but GBU through-hole package (not AEC-Q101 qualified); higher RθJA (50°C/W). | Designed for prototyping or non-automotive cost-sensitive designs where SMT is not required. | Select GBU2K only if through-hole assembly is preferred and AEC-Q101 is not mandated. |
| DF02M | 2 A / 200 V, SMB package, AEC-Q101 qualified; lower IFSM (30 A) and higher VF (1.25 V typ). | Optimized for space-constrained consumer electronics; less robust for high-surge industrial environments. | Choose DF02M when board area is critical and surge margin can be reduced via upstream NTC or fuse coordination. |
Compared with GBU2K and DF02M, DBLS203GH uniquely combines AEC-Q101 qualification, 50 A surge rating, and low-profile DBLS SMT package-making it optimal for production automotive and industrial power supplies where reliability, manufacturability, and thermal performance are jointly prioritized.
Availability
DBLS203GH is available at Aetrix Electronics and suitable for automotive lighting, industrial SMPS, white goods control boards, and LED driver power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DBLS203GH 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 automotive, industrial, and consumer markets since 1979.
The DBLS series was developed to deliver AEC-Q101-qualified, high-surge SMT bridge rectifiers for automotive and industrial power conversion where reliability, safety certification, and thermal efficiency are essential.
FAQ
What is the peak repetitive reverse voltage rating for DBLS203GH?
The DBLS203GH has a repetitive peak reverse voltage (VRRM) rating of 200 V. This value is fixed for the "203" variant in the DBLS201G–DBLS209G family and is confirmed in the Absolute Maximum Ratings table of Taiwan Semiconductor's official datasheet (Version J2103). It defines the maximum AC voltage the device can block during normal operation without entering avalanche breakdown.
Is DBLS203GH suitable for automotive applications?
Yes, DBLS203GH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST), making it suitable for under-hood and cabin electronics such as LED headlight drivers and HVAC control modules.
What does the "DBLS" package designation mean for DBLS203GH?
The DBLS package is a proprietary surface-mount, 4-terminal molded plastic housing developed by Taiwan Semiconductor. It features matte tin-plated leads, UL 94V-0 flammability rating, and a weight of approximately 0.360 g. The DBLS203GH uses this package exclusively-no through-hole or alternate variants exist for this specific part number.
What is the forward voltage specification for DBLS203GH at rated current?
At IF = 2 A and TJ = 25°C, DBLS203GH exhibits a typical forward voltage (VF) of 1.15 V per diode. Since it is a full-wave bridge, two diodes conduct in series during each half-cycle, resulting in ~2.3 V total conduction drop across the device under those conditions.
Does DBLS203GH require baking before reflow soldering?
No, DBLS203GH 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. This eliminates pre-reflow baking steps and reduces manufacturing overhead in high-volume SMT lines.
DBLS203GH 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):
- 200 V
- Current - Average Rectified (Io):
- 2 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 2 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 200 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DBLS
DBLS203GH FAQ
1.How can I place an order for DBLS203GH through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS203GH 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 DBLS203GH reliable?
The price and inventory of DBLS203GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS203GH is usually 5 days.
3.What payment methods are accepted for DBLS203GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS203GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS203GH?
DBLS203GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS203GH 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 DBLS203GH?
For technical support, including DBLS203GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS203GH requirements.
6.How does Aetrix verify that DBLS203GH is sourced from the original manufacturer or authorized distributors?
All DBLS203GH 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 DBLS203GH meets industry standards.
7.What is the process for return or replacement of DBLS203GH?
All DBLS203GH units undergo pre-shipment inspection (PSI). If there is an issue with DBLS203GH, 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 DBLS203GH part is unused and in its original packaging.
Return procedure for DBLS203GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DBLS203GH Tags
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BAS3007ARPPE6327HTSA1
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DF04M
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