Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Bridge Rectifiers

Taiwan Semiconductor Corporation DBL207G-T

Name: DBL207G-T
Brand: Taiwan Semiconductor Corporation
SKU: DBL207G-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: DBL207G-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-DIP (0.300", 7.62mm)

Datasheet:: DBL207G-T.pdf

Description:: BRIDGE RECT 1PHASE 1KV 2A DBL

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,082

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

DBL207G-T from Taiwan Semiconductor is a 2A, 1000V standard quad bridge rectifier in DBL package, featuring 50A peak surge current, 1.15V max forward voltage per diode at 2A, and 15°C/W junction-to-lead thermal resistance. It is used in high-voltage AC/DC conversion stages of industrial SMPS and lighting ballasts.

For engineers reviewing the DBL207G-T datasheet, DBL207G-T pinout, DBL207G-T application, or DBL207G-T equivalent, key selection criteria include repetitive peak reverse voltage (1000V), thermal performance (R_θJL = 15°C/W), surge capability (IFSM = 50A), and RoHS/halogen-free compliance for regulated end equipment.

Technical Context

The DBL207G-T integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals externally accessible. Its 1000V V_RRM rating enables direct rectification of 700V_RMS AC inputs, supporting universal-input offline power supplies up to 250VAC mains with safety margin.

Designed for surface-mount PCB assembly, the DBL package uses matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 1A whisker resistance. Thermal design relies on junction-to-lead conduction (15°C/W) rather than ambient dissipation (40°C/W), requiring direct copper pad thermal coupling to PCB ground planes.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - Supports rectification of 700V_RMS AC input; suitable for 230–250VAC universal-line SMPS with derating margin
I_F	2 A - Continuous average forward current rating at T_A = 25°C; requires thermal management above 70°C ambient
I_FSM	50 A - Withstands 8.3ms half-sine surge; handles cold-start inrush into bulk capacitors up to 100µF
V_F (per diode)	≤1.15 V @ 2A, 25°C - Limits conduction loss to ≤2.3W total bridge dissipation at full load
R_θJL	15 °C/W - Enables 3.3W power dissipation with ≤50°C temperature rise from lead to junction; demands low-impedance PCB copper path
I²t	10.3 A²s - Fusing rating for short-circuit protection coordination with fast-acting fuses
T_J max	+150 °C - Allows operation in enclosed industrial enclosures with limited airflow when properly heatsinked

Pinout & Package

Package: DBL - Molded plastic case meeting UL 94V-0, 0.360g weight, matte tin-plated leads, polarity marked on top surface.

Pin/Terminal	Circuit Role	Design Meaning
~AC1	AC input terminal 1	One leg of AC input; connects to primary-side transformer secondary or EMI filter output
~AC2	AC input terminal 2	Second leg of AC input; completes full-wave bridge input path
+DC	Positive DC output	Common cathode node; delivers rectified positive rail to bulk capacitor and PFC stage
-DC	Negative DC output / Ground reference	Common anode node; serves as return path and system ground reference for downstream converters

Key Features

Feature	Design Value
UL Recognized (E-326854)	Validates safety compliance for end-equipment certification in North America without additional component-level testing
RoHS & Halogen-free (IEC 61249-2-21)	Meets EU WEEE/RoHS and automotive ELV requirements; eliminates brominated flame retardants in PCB assembly
High I_FSM (50A)	Survives repeated cold-start surges into large electrolytic bulk capacitors without degradation or bond-wire fusing
J-STD-002 solderable leads	Guarantees reliable reflow and wave solder joint formation without pre-tinning or flux adjustment
JESD201 Class 1A whisker resistance	Prevents tin whisker growth under thermal cycling and humidity stress, critical for long-life industrial deployments

Applications

Industrial SMPS Input Stage	LED Driver Bulk Rectification
Use Scenario: Off-line 230VAC-to-DC conversion feeding active PFC and LLC resonant converter in factory automation power modules. IC Role / Device Role / Timing Role: Primary AC/DC bridge rectifier converting mains to unregulated DC bus; defines input surge handling and thermal baseline. Use Value: 1000V V_RRM provides 1.8× margin over 230VAC peak (325V), enabling robust operation during line transients and brownouts.	Use Scenario: High-efficiency constant-current LED driver for street lighting operating from 220–240VAC grid with wide ambient temperature range. IC Role / Device Role / Timing Role: Front-end bridge rectifier delivering stable DC bus to buck-boost LED controller IC; sets efficiency and thermal footprint. Use Value: 15°C/W R_θJL allows direct thermal coupling to aluminum PCB, reducing heatsink mass by >40% vs. higher-R_θ alternatives.
Universal Input Adapters	Appliance Power Supply Input
Use Scenario: Dual-range (100–240VAC) wall adapter for medical monitoring devices requiring double-insulation and low leakage. IC Role / Device Role / Timing Role: Isolated AC input rectifier; interfaces with Y-capacitor EMI filter and transformer primary winding. Use Value: 2µA max reverse leakage at 25°C ensures compliance with IEC 60601-1 patient leakage limits (<10µA) across full temperature range.	Use Scenario: Embedded power supply in white goods (refrigerators, washing machines) exposed to high-humidity, vibration, and thermal cycling. IC Role / Device Role / Timing Role: Mains rectifier in auxiliary 12V/5V standby supply; must survive 15-year field life with no maintenance. Use Value: JESD201 Class 1A whisker resistance and -55°C to +150°C storage rating ensure reliability under condensation and thermal shock conditions.

Industrial SMPS Input Stage

LED Driver Bulk Rectification

Use Scenario: Off-line 230VAC-to-DC conversion feeding active PFC and LLC resonant converter in factory automation power modules.

IC Role / Device Role / Timing Role: Primary AC/DC bridge rectifier converting mains to unregulated DC bus; defines input surge handling and thermal baseline.

Use Value: 1000V V_RRM provides 1.8× margin over 230VAC peak (325V), enabling robust operation during line transients and brownouts.

Use Scenario: High-efficiency constant-current LED driver for street lighting operating from 220–240VAC grid with wide ambient temperature range.

IC Role / Device Role / Timing Role: Front-end bridge rectifier delivering stable DC bus to buck-boost LED controller IC; sets efficiency and thermal footprint.

Use Value: 15°C/W R_θJL allows direct thermal coupling to aluminum PCB, reducing heatsink mass by >40% vs. higher-R_θ alternatives.

Universal Input Adapters

Appliance Power Supply Input

Use Scenario: Dual-range (100–240VAC) wall adapter for medical monitoring devices requiring double-insulation and low leakage.

IC Role / Device Role / Timing Role: Isolated AC input rectifier; interfaces with Y-capacitor EMI filter and transformer primary winding.

Use Value: 2µA max reverse leakage at 25°C ensures compliance with IEC 60601-1 patient leakage limits (<10µA) across full temperature range.

Use Scenario: Embedded power supply in white goods (refrigerators, washing machines) exposed to high-humidity, vibration, and thermal cycling.

IC Role / Device Role / Timing Role: Mains rectifier in auxiliary 12V/5V standby supply; must survive 15-year field life with no maintenance.

Use Value: JESD201 Class 1A whisker resistance and -55°C to +150°C storage rating ensure reliability under condensation and thermal shock conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bridge rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU8K-E3/51	Same 2A/1000V rating but GBU package (larger footprint, higher R_θJA = 50°C/W); VF = 1.05V typ	Less suitable for space-constrained PCBs; requires larger thermal pad area for same power dissipation	Preferred where legacy GBU footprint exists and board real estate is available
DF08MA	2A/800V rating (lower V_RRM); DBL package; VF = 1.1V max; R_θJL = 16°C/W	Not rated for 250VAC universal input; acceptable only for 230VAC-only designs with tight derating	Select only if system input is fixed 230VAC and cost sensitivity outweighs safety margin needs

Compared with GBU8K-E3/51 and DF08MA, the DBL207G-T offers optimal balance of high-voltage margin (1000V), compact DBL footprint, and superior thermal conduction (15°C/W), making it preferred for new industrial and lighting designs requiring both safety headroom and thermal efficiency.

Availability

DBL207G-T is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and universal-input adapters requiring stable component supply across extended production lifecycles.

Supply support for DBL207G-T 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 industrial, computing, and consumer markets since 1979.

The DBL204G-T through DBL207G-T series was designed specifically for high-reliability, cost-sensitive AC/DC front-end rectification in energy-efficient power supplies, emphasizing thermal robustness, safety certification readiness, and halogen-free compliance.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for DBL207G-T?

The DBL207G-T has a V_RRM rating of 1000V, verified in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version C2103). This value is specific to DBL207G-T and distinguishes it from lower-voltage variants like DBL204G-T (400V) and DBL206G-T (800V). The 1000V rating enables use in 250VAC systems with sufficient safety margin against line surges and transients.

Does DBL207G-T meet RoHS and halogen-free requirements?

Yes, DBL207G-T is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. The "G" suffix in DBL207G-T denotes green (halogen-free) molding compound. This makes DBL207G-T suitable for export to EU, China, and other jurisdictions enforcing strict substance restrictions.

What is the forward voltage drop (V_F) specification for DBL207G-T at rated current?

The DBL207G-T has a maximum forward voltage of 1.15V per diode at I_F = 2A and T_J = 25°C, per the Electrical Specifications table. Since the device contains four diodes in bridge configuration, total conduction loss at full load is ≤4.6W (2 × V_F × I_F). This value is measured under pulsed conditions (PW = 0.3ms) to avoid self-heating effects.

Is DBL207G-T UL recognized, and what is its file number?

Yes, DBL207G-T is UL Recognized with file number E-326854, as confirmed in the FEATURES list and Mechanical Data section. This recognition applies to the entire DBL204G-T through DBL207G-T family and covers flammability (UL 94V-0), construction, and electrical safety - simplifying end-product certification for North American markets.

What thermal resistance values are specified for DBL207G-T?

DBL207G-T specifies R_θJL = 15°C/W (junction-to-lead) and R_θJA = 40°C/W (junction-to-ambient), per the Thermal Performance table. These values are measured under standardized JEDEC conditions. For thermal design, R_θJL is the relevant parameter when the leads are soldered to large copper areas, as it reflects conduction-dominated cooling typical in industrial PCB layouts.

DBL207G-T Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 4-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Active

Diode Type:: Single Phase

Technology:: Standard

Voltage - Peak Reverse (Max):: 1 kV

Current - Average Rectified (Io):: 2 A

Voltage - Forward (Vf) (Max) @ If:: 1.15 V @ 2 A

Current - Reverse Leakage @ Vr:: 2 µA @ 1000 V

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DBL

DBL207G-T FAQ

1.How can I place an order for DBL207G-T through Aetrix?

Please submit a Request for Quotation (RFQ) for DBL207G-T 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 DBL207G-T reliable?

The price and inventory of DBL207G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBL207G-T is usually 5 days.

3.What payment methods are accepted for DBL207G-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBL207G-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DBL207G-T?

DBL207G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DBL207G-T 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 DBL207G-T?

For technical support, including DBL207G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBL207G-T requirements.

6.How does Aetrix verify that DBL207G-T is sourced from the original manufacturer or authorized distributors?

All DBL207G-T 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 DBL207G-T meets industry standards.

7.What is the process for return or replacement of DBL207G-T?

All DBL207G-T units undergo pre-shipment inspection (PSI). If there is an issue with DBL207G-T, 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 DBL207G-T part is unused and in its original packaging.

Return procedure for DBL207G-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…