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Taiwan Semiconductor Corporation DBLS157G C1G
- Part No.:
- DBLS157G C1G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS157G C1G.pdf
- Description:
- BRIDGE RECT 1PHASE 1KV 1.5A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:7,340
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Product details
Overview
DBLS157G from Taiwan Semiconductor is a 1.5A, 1000V rated standard bridge rectifier in DBLS surface-mount package, featuring 50A peak surge current capability, 1.10V max forward voltage at 1.5A, and AEC-Q101 qualification option (DBLS157GH). It serves as AC-to-DC conversion core in compact offline power supplies.
For engineers reviewing the DBLS157G datasheet, DBLS157G pinout, DBLS157G application, or DBLS157G equivalent, key selection factors include its 1000V VRRM rating, quad-diode bridge configuration, UL 94V-0 molded case, J-STD-020 Level 1 moisture sensitivity, and thermal resistance of 15°C/W junction-to-lead.
Technical Context
This DBLS-series bridge rectifier integrates four silicon diodes in a single-phase full-wave configuration with common-cathode and common-anode terminals. Its internal quad arrangement enables direct AC input rectification without external interconnection.
Designed for surface-mount assembly on PCBs, it supports reflow soldering per J-STD-002, features matte tin-plated leads, and meets JESD201 Class 2 whisker resistance. The DBLS157G operates across –55°C to +150°C junction temperature range with 10.3 A²s fusing I²t rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - maximum repetitive reverse voltage per diode; defines safe AC input voltage ceiling (e.g., 707 Vrms sine wave) |
| IF | 1.5 A - continuous average forward current; determines steady-state power handling in conduction mode |
| IFSM | 50 A - non-repetitive surge current (8.3 ms half-sine); supports inrush current during cold start |
| VF @ 1.5A | 1.10 V max - forward voltage drop per diode; directly impacts conduction loss and thermal design |
| RθJL | 15 °C/W - junction-to-lead thermal resistance; enables direct heatsinking via PCB copper pour or metal-core board |
| IR @ 1000V | 2 µA max @ 25°C - reverse leakage per diode; critical for low-power standby efficiency and high-impedance bias networks |
Pinout & Package
Package: DBLS - surface-mount, molded plastic case with gull-wing leads, UL 94V-0 rated, 0.360g weight, polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One leg of AC input; connects to live/phase side of transformer secondary or line filter |
| AC2 | AC Input Terminal 2 | Second leg of AC input; completes full-wave bridge input path |
| + (Anode Common) | Positive DC Output | Full-wave rectified positive output node; feeds bulk capacitor or downstream regulator |
| – (Cathode Common) | Negative DC Output | Full-wave rectified negative/return node; system ground reference point for DC output |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | DBLS157GH meets automotive-grade reliability requirements including temperature cycling, HTRB, and ESD testing |
| UL Recognized (E-326854) | Validated safety compliance for end-equipment certification in North America and globally |
| J-STD-020 Level 1 moisture sensitivity | No floor life limitation; eliminates baking requirement prior to reflow assembly |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| LED Driver Power Supply | Industrial AC-DC Adapter |
|---|---|
Use Scenario: Constant-voltage LED driver powering streetlight modules from 230 VAC mains. IC Role / Device Role / Timing Role: Primary-side bridge rectifier converting AC line to unregulated DC bus before PFC and DC-DC stages. Use Value: 1000 V VRRM safely withstands 230 VAC + 10% tolerance + line transients; 1.10 V VF minimizes conduction loss at 1.5 A nominal load. | Use Scenario: DIN-rail mounted 24 VDC industrial adapter accepting universal 85–264 VAC input. IC Role / Device Role / Timing Role: Input-stage full-wave rectifier feeding bulk capacitor and active PFC controller. Use Value: 50 A IFSM handles repeated cold-start surges; DBLS package enables compact PCB layout with minimal creepage/clearance overhead. |
| Smart Home Power Module | White Goods Control Board |
Use Scenario: Low-profile AC-DC module inside Wi-Fi smart plug with space-constrained enclosure. IC Role / Device Role / Timing Role: Surface-mount bridge rectifier enabling direct PCB integration without through-hole mounting. Use Value: DBLS footprint reduces board area vs. traditional KBPC packages; Level 1 MSL allows standard SMT line processing without dry pack or baking. | Use Scenario: Main control board in refrigerator with embedded SMPS for microcontroller and sensor rails. IC Role / Device Role / Timing Role: Mains-input rectifier operating continuously under ambient temperatures up to 70°C. Use Value: 150°C TJ max and 15°C/W RθJL support reliable operation with passive heatsinking; UL recognition simplifies regional safety approvals. |
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) | 6A IF rating, 800V VRRM, larger GBU package, higher VF (~1.15V) | Higher current capacity but lower voltage margin; requires more PCB area | Choose when >1.5A continuous current is needed and 800V VRRM suffices |
| MB10F (Fairchild/ON) | 1A IF rating, 1000V VRRM, smaller MBF package, VF ~1.05V | Lower current rating limits use to sub-1A loads; tighter footprint | Choose for space-constrained designs with ≤1A average load and identical voltage requirement |
Compared with GBU6K and MB10F, the DBLS157G uniquely balances 1.5A current, 1000V blocking, and compact DBLS surface-mount form factor-making it optimal for mid-power industrial and consumer SMPS where board space, thermal performance, and voltage margin must coexist.
Availability
DBLS157G is available at Aetrix Electronics and suitable for switching mode power supplies, lighting drivers, and industrial adapters requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for DBLS157G 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 to deliver high-reliability, surface-mount bridge rectifiers with automotive-grade variants, optimized for space-constrained AC-DC front-ends in cost-sensitive yet thermally demanding applications.
FAQ
What is the peak repetitive reverse voltage rating of the DBLS157G?
The DBLS157G has a peak repetitive reverse voltage (VRRM) rating of 1000 V. This value is specified per diode within the bridge and defines the maximum AC voltage the device can block during normal operation. It ensures safe operation with 230 VAC mains inputs including transient overvoltages, and is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version M2103).
Is the DBLS157G suitable for automotive applications?
The DBLS157G itself is not AEC-Q101 qualified; however, its pin-compatible variant DBLS157GH is fully AEC-Q101 certified. For automotive use, DBLS157GH must be specified-offering identical electrical parameters and thermal performance while meeting stress tests for temperature cycling, high-temperature reverse bias, and mechanical shock required for under-hood and infotainment systems.
What is the forward voltage drop of the DBLS157G at rated current?
The DBLS157G exhibits a maximum forward voltage (VF) of 1.10 V per diode at 1.5 A forward current and 25°C junction temperature. This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss-critical for calculating thermal rise and efficiency in high-density power supplies where the DBLS157G is deployed.
Does the DBLS157G require moisture sensitivity handling before reflow soldering?
No-the DBLS157G is rated J-STD-020 Level 1 for moisture sensitivity, meaning it has unlimited floor life and does not require dry packing, baking, or special handling prior to reflow soldering. This simplifies manufacturing logistics and eliminates yield risk associated with moisture-induced popcorning, making the DBLS157G ideal for high-volume SMT lines.
What is the thermal resistance from junction to lead for the DBLS157G?
The DBLS157G has a junction-to-lead thermal resistance (RθJL) of 15°C/W, as specified in the Thermal Performance section of the datasheet. This parameter enables direct thermal coupling to PCB copper planes or metal-core substrates, supporting efficient heat dissipation without external heatsinks in applications up to 1.5 A continuous load at ambient temperatures ≤50°C.
DBLS157G 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):
- 1 kV
- Current - Average Rectified (Io):
- 1.5 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1.5 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1000 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DBLS
DBLS157G C1G FAQ
1.How can I place an order for DBLS157G C1G through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS157G 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 DBLS157G C1G reliable?
The price and inventory of DBLS157G C1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS157G C1G is usually 5 days.
3.What payment methods are accepted for DBLS157G C1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS157G C1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS157G C1G?
DBLS157G C1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS157G 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 DBLS157G C1G?
For technical support, including DBLS157G C1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS157G C1G requirements.
6.How does Aetrix verify that DBLS157G C1G is sourced from the original manufacturer or authorized distributors?
All DBLS157G 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 DBLS157G C1G meets industry standards.
7.What is the process for return or replacement of DBLS157G C1G?
All DBLS157G C1G units undergo pre-shipment inspection (PSI). If there is an issue with DBLS157G 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 DBLS157G C1G part is unused and in its original packaging.
Return procedure for DBLS157G C1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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