My Inquiry
My Account
Taiwan Semiconductor Corporation DBLS202G
- Part No.:
- DBLS202G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DBLS202G.pdf
- Description:
- BRIDGE RECT 1PHASE 100V 2A DBLS
- Quantity:
- Payment:
- Shipping:
Inventory:5,898
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DBLS202G from Taiwan Semiconductor is a 2 A, 100 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 option - used in AC/DC front-end stages of compact switching mode power supplies.
For engineers reviewing the DBLS202G datasheet, DBLS202G pinout, DBLS202G application, or DBLS202G equivalent, key selection factors include its 100 V VRRM, 2 A average forward current rating, DBLS package thermal resistance (RθJA = 40 °C/W), moisture sensitivity level 1 compliance, and UL recognition (E-326854).
Technical Context
The DBLS202G integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals externally accessible. Its construction uses molded plastic (UL 94V-0) with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
Thermally, it delivers RθJL = 15 °C/W (junction-to-lead) and RθJA = 40 °C/W (junction-to-ambient), enabling reliable 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 | 100 V - maximum non-repetitive reverse voltage the device blocks per diode leg without breakdown |
| IF | 2 A - continuous average forward current rating at case temperature ≤75 °C |
| IFSM | 50 A - peak non-repetitive surge current (8.3 ms half-sine) the bridge withstands without failure |
| VF (max) | 1.15 V - maximum forward voltage drop per diode at IF = 2 A and TJ = 25 °C, defining conduction loss |
| TJ (max) | +150 °C - maximum allowable junction temperature for reliable long-term operation |
| RθJA | 40 °C/W - thermal resistance from junction to ambient air, critical for heatsink-less PCB layout design |
| Moisture Sensitivity | Level 1 (per J-STD-020) - no floor life limitation; safe for standard SMT reflow without baking |
Pinout & Package
Package: DBLS - surface-mount, molded plastic body (UL 94V-0), 4-terminal single-phase bridge configuration with polarity marked on top surface. Dimensions conform to Taiwan Semiconductor's DBLS outline drawing (Version J2103).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC input terminal 1 | One of two alternating-current input nodes; connects to transformer secondary or line input |
| ~AC2 | AC input terminal 2 | Second AC input node; completes full-wave rectification path with ~AC1 |
| +DC | Positive DC output | Common anode node of internal diodes; delivers rectified positive rail to filter capacitor |
| –DC | Negative DC output / ground reference | Common cathode node; serves as return path and system ground reference for downstream circuitry |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified version available | Enables use in automotive power modules where reliability under temperature cycling and vibration is mandated |
| UL Recognized (E-326854) | Validates safety compliance for end-equipment certification in North America and globally |
| Halogen-free (IEC 61249-2-21) | Meets environmental regulations for RoHS-compliant electronics manufacturing and disposal |
| High IFSM/IF ratio (25:1) | Supports robust startup and transient overload handling in SMPS without derating or external fusing |
| Matte tin-plated leads | Ensures consistent solder wetting and joint integrity across lead-free reflow profiles (J-STD-002) |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapters |
|---|---|
Use Scenario: Front-end rectification stage in 10–50 W offline flyback converters powering consumer electronics. IC Role / Device Role / Timing Role: Quad bridge rectifier converting AC mains or transformer output to pulsating DC prior to bulk capacitance and PWM controller. Use Value: Compact DBLS footprint reduces board area vs discrete diode solutions; 100 V VRRM safely handles 85–265 VAC input with margin after bridge voltage doubling. | Use Scenario: Low-cost wall-mounted adapters for routers, set-top boxes, and IoT gateways. IC Role / Device Role / Timing Role: Primary-side AC/DC conversion element delivering regulated 5 V or 12 V output via linear or buck post-regulation. Use Value: 2 A IF rating supports typical adapter loads; moisture sensitivity level 1 eliminates pre-reflow baking, lowering assembly cost. |
| LED Lighting Drivers | Industrial Control Power Supplies |
Use Scenario: Constant-voltage LED drivers in commercial downlights and panel lights operating from universal AC input. IC Role / Device Role / Timing Role: Input rectifier feeding passive PFC or buck-boost converter stage driving high-brightness LEDs. Use Value: 50 A IFSM withstands inrush currents from large input capacitors; UL recognition simplifies end-product safety approvals. | Use Scenario: Auxiliary power supply in PLC I/O modules, motor drives, and sensor transmitters requiring stable 15–24 V rails. IC Role / Device Role / Timing Role: Isolated AC/DC conversion block providing isolated bias for gate drivers, op-amps, and communication ICs. Use Value: RθJA = 40 °C/W enables natural convection cooling in enclosed enclosures; 150 °C TJ(max) ensures operation in hot industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU2K (ON Semiconductor) | Same 2 A / 100 V rating, but GBU package (larger, through-hole); RθJA ≈ 50 °C/W | Preferred where manual assembly or higher creepage/clearance is required; not SMT-compatible | Select GBU2K only if board-level automation is not used and mechanical mounting constraints favor axial leads. |
| GBU2J (Vishay) | Identical electrical specs (2 A, 100 V), same GBU package; AEC-Q101 qualified as standard | Automotive-grade default; requires validation for non-automotive cost-sensitive designs | Choose GBU2J when AEC-Q101 compliance is mandatory and GBU footprint is acceptable. |
Compared with GBU2K and GBU2J, the DBLS202G offers superior SMT integration density and lower thermal resistance in surface-mount layouts, while requiring explicit AEC-Q101 option (DBLS202GH) for automotive use - making it optimal for space-constrained, high-volume consumer and industrial power supplies.
Availability
DBLS202G is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, LED lighting drivers, and industrial control power supplies requiring stable component supply, consistent parametric performance, and traceable sourcing.
Supply support for DBLS202G 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, specializing in rectifiers, TVS diodes, MOSFETs, and bipolar transistors since 1979.
The DBLS202G belongs to TSC's DBLS-series standard bridge rectifiers, designed specifically for high-efficiency, low-profile AC/DC conversion in cost-sensitive, high-volume power applications where reliability and regulatory compliance are essential.
FAQ
What is the peak repetitive reverse voltage rating of the DBLS202G?
The DBLS202G has a repetitive peak reverse voltage (VRRM) rating of 100 V. This value is specified per diode leg within the bridge and defines the maximum reverse voltage the device can block repeatedly without avalanche breakdown. It is validated per the DBLS201G–DBLS209G family datasheet (Version J2103) and applies under standard test conditions (TA = 25 °C).
Is the DBLS202G suitable for automotive applications?
The standard DBLS202G is not AEC-Q101 qualified. However, the DBLS202GH variant - identical in all electrical and mechanical specifications except for AEC-Q101 stress testing compliance - is available for automotive use. Engineers must specify DBLS202GH explicitly when automotive qualification is required; DBLS202G alone does not meet AEC-Q101 requirements.
What is the forward voltage drop of the DBLS202G at rated current?
The DBLS202G exhibits a maximum forward voltage (VF) of 1.15 V per diode at IF = 2 A and TJ = 25 °C. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the worst-case conduction loss per diode leg during normal operation, directly impacting efficiency and thermal design.
Does the DBLS202G require baking before reflow soldering?
No, the DBLS202G does not require baking prior to reflow soldering. It is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it has unlimited floor life and may be processed using standard lead-free reflow profiles without preconditioning or dry-pack handling.
What is the thermal resistance from junction to ambient for the DBLS202G?
The DBLS202G has a junction-to-ambient thermal resistance (RθJA) of 40 °C/W under standard test conditions (still air, JEDEC PCB mount). This value assumes the device is mounted on a 1-inch² copper pad with two thermal vias; actual board layout will affect real-world thermal performance.
DBLS202G 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):
- 100 V
- Current - Average Rectified (Io):
- 2 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 2 A
- Current - Reverse Leakage @ Vr:
- 2 µA @ 100 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DBLS
DBLS202G FAQ
1.How can I place an order for DBLS202G through Aetrix?
Please submit a Request for Quotation (RFQ) for DBLS202G 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 DBLS202G reliable?
The price and inventory of DBLS202G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DBLS202G is usually 5 days.
3.What payment methods are accepted for DBLS202G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DBLS202G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DBLS202G?
DBLS202G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DBLS202G 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 DBLS202G?
For technical support, including DBLS202G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DBLS202G requirements.
6.How does Aetrix verify that DBLS202G is sourced from the original manufacturer or authorized distributors?
All DBLS202G 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 DBLS202G meets industry standards.
7.What is the process for return or replacement of DBLS202G?
All DBLS202G units undergo pre-shipment inspection (PSI). If there is an issue with DBLS202G, 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 DBLS202G part is unused and in its original packaging.
Return procedure for DBLS202G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DBLS202G Tags
-
HDS10M-13
Diodes Incorporated
-
CD-MBL106S
Bourns Inc.
-
MB10S-13
Diodes Incorporated
-
CD-MBL206SL
Bourns Inc.
-
MB4S-TP
Micro Commercial Co
-
MB6S-TP
Micro Commercial Co
-
CD-MBL210S
Bourns Inc.
-
BAS3007ARPPE6327HTSA1
Infineon Technologies
-
DF02M
Diodes Incorporated
-
CD-MBL210SL
Bourns Inc.
-
DF04M
Diodes Incorporated
-
DF01M
Diodes Incorporated
Tech Hub
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, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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.
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.
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…
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…
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…
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 …
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…
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…
