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

Taiwan Semiconductor Corporation GBU606-K

Name: GBU606-K
Brand: Taiwan Semiconductor Corporation
SKU: GBU606-K
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: GBU606-K

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-ESIP, GBU

Datasheet:: GBU606-K.pdf

Description:: BRIDGE RECT 1PHASE 800V 6A GBU

Quantity:: RFQ Add To RFQ list

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Inventory:4,516

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Product details

Overview

GBU606-K from Taiwan Semiconductor is a 6A, 800V repetitive peak reverse voltage (VRRM) standard single-phase bridge rectifier in GBU package, featuring 175A surge current capability, 2°C/W junction-to-case thermal resistance, and typical reverse leakage <5µA at 25°C. It is used in AC/DC front-end conversion for industrial power adapters and lighting ballasts.

For engineers reviewing the GBU606-K datasheet, GBU606-K pinout, GBU606-K application, or GBU606-K equivalent, key selection criteria include VRRM rating, IFSM margin for inrush handling, thermal resistance under PCB-mount convection cooling, and UL recognition for safety-compliant designs.

Technical Context

The GBU606-K integrates four silicon diodes in a single-phase full-wave bridge configuration with common cathode/anode terminals. Its quad-diode layout enables direct AC input rectification without external interconnection, supporting both PCB through-hole mounting and wave soldering per J-STD-002.

Thermally, it delivers 21°C/W junction-to-ambient resistance with standard copper pour on FR-4, and its 150°C maximum junction temperature allows operation in enclosed SMPS enclosures up to 70°C ambient when derated per Fig.1. The 1500VRMS case dielectric strength ensures isolation compliance in double-insulated systems.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	800 V - Withstands 800V repetitive reverse voltage across AC input terminals without breakdown.
IF	6 A - Continuous average forward current per bridge leg under specified thermal conditions.
IFSM	175 A - Handles single 8.3ms half-sine surge without fusing, critical for cold-start inrush limiting.
R_θJC	2 °C/W - Enables precise junction temperature estimation using measured case temperature.
IR (TJ = 25°C)	<5 µA - Low leakage preserves efficiency in high-impedance bias networks and standby circuits.
CJ (1MHz, VR = 4V)	94 pF - Limits high-frequency switching noise coupling in PFC and resonant converter stages.

Pinout & Package

Package: GBU - Molded plastic case with 4 leads (AC1, AC2, +, −), UL 94V-0 rated, matte tin-plated, 4.0g weight, 0.56 N·m max mounting torque.

Pin/Terminal	Circuit Role	Design Meaning
AC1	AC Input Terminal 1	One of two alternating-current input nodes; symmetrical with AC2 for bidirectional line connection.
AC2	AC Input Terminal 2	Second AC input node; forms full-wave bridge with AC1, +, and − terminals.
+	DC Positive Output	Common cathode output delivering rectified positive DC voltage to downstream filter and regulation stages.
−	DC Negative Output	Common anode output serving as return path; referenced to system ground or negative rail.

Key Features

Feature	Design Value
UL Recognition (E326243)	Validates isolation integrity and flammability compliance for end-equipment safety certification.
1500VRMS Dielectric Strength	Supports reinforced insulation requirements in Class II power supplies without additional creepage/clearance.
RoHS & Halogen-Free	Meets IEC 61249-2-21 and EU RoHS directives for environmentally compliant manufacturing and disposal.
175A IFSM Rating	Provides robustness against line transients and capacitor-charging surges in unregulated AC/DC inputs.

Applications

Industrial Power Adapters	LED Driver Front-End
Use Scenario: 100–240VAC input stage in DIN-rail mounted 24V/5A industrial adapters powering PLC I/O modules. IC Role / Device Role / Timing Role: Bridge rectifier converting universal AC input to unregulated DC bus prior to buck or flyback regulation. Use Value: 800V VRRM provides 2× safety margin over 240VAC RMS, and 175A IFSM accommodates 10× nominal inrush during cold start.	Use Scenario: AC input rectification in constant-current LED drivers for streetlight luminaires operating outdoors. IC Role / Device Role / Timing Role: Primary-side full-wave rectifier feeding bulk capacitor and PFC controller in non-isolated buck-boost topology. Use Value: 2°C/W R_θJC enables stable operation at 70°C ambient with minimal heatsinking, extending driver lifetime.
Switching Mode Power Supply	AC Motor Control Interface
Use Scenario: Input rectification in 60W open-frame SMPS for office equipment with universal input range. IC Role / Device Role / Timing Role: Standard bridge providing low-loss, high-reliability DC bus generation before primary-side switching. Use Value: Typical VF of 1.1V at 6A minimizes conduction loss (6.6W total), improving overall efficiency above 85%.	Use Scenario: Rectifying control circuit AC supply in three-phase motor drives with auxiliary 24V logic power. IC Role / Device Role / Timing Role: Isolated AC-to-DC conversion for gate driver bias and microcontroller power rails. Use Value: 1500VRMS isolation withstand supports safe separation between motor power and low-voltage control domains.

Industrial Power Adapters

LED Driver Front-End

Use Scenario: 100–240VAC input stage in DIN-rail mounted 24V/5A industrial adapters powering PLC I/O modules.

IC Role / Device Role / Timing Role: Bridge rectifier converting universal AC input to unregulated DC bus prior to buck or flyback regulation.

Use Value: 800V VRRM provides 2× safety margin over 240VAC RMS, and 175A IFSM accommodates 10× nominal inrush during cold start.

Use Scenario: AC input rectification in constant-current LED drivers for streetlight luminaires operating outdoors.

IC Role / Device Role / Timing Role: Primary-side full-wave rectifier feeding bulk capacitor and PFC controller in non-isolated buck-boost topology.

Use Value: 2°C/W R_θJC enables stable operation at 70°C ambient with minimal heatsinking, extending driver lifetime.

Switching Mode Power Supply

AC Motor Control Interface

Use Scenario: Input rectification in 60W open-frame SMPS for office equipment with universal input range.

IC Role / Device Role / Timing Role: Standard bridge providing low-loss, high-reliability DC bus generation before primary-side switching.

Use Value: Typical VF of 1.1V at 6A minimizes conduction loss (6.6W total), improving overall efficiency above 85%.

Use Scenario: Rectifying control circuit AC supply in three-phase motor drives with auxiliary 24V logic power.

IC Role / Device Role / Timing Role: Isolated AC-to-DC conversion for gate driver bias and microcontroller power rails.

Use Value: 1500VRMS isolation withstand supports safe separation between motor power and low-voltage control domains.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU606	No "-K" suffix; identical electrical specs but lacks halogen-free certification per IEC 61249-2-21.	Acceptable where RoHS compliance is required but halogen-free is not mandated.	Select GBU606-K when environmental compliance includes halogen restrictions.
GBU6J	Same GBU package and 6A/800V rating, but rated for 200A IFSM and 1.0V VF (typ) at 3A - higher surge and lower conduction loss.	Better suited for high-inrush applications like HVAC controllers or laser power supplies.	Choose GBU6J only if design requires >175A surge headroom or sub-1.0V forward drop at partial load.

Compared with GBU606 and GBU6J, the GBU606-K offers verified halogen-free construction and UL recognition while maintaining identical VRRM, IF, and thermal performance - making it optimal for globally distributed lighting and industrial adapter programs requiring full environmental and safety compliance.

Availability

GBU606-K is available at Aetrix Electronics and suitable for industrial power adapters, LED driver front-ends, and switching mode power supply designs requiring stable component supply, long-term lifecycle assurance, and certified environmental compliance.

Supply support for GBU606-K 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 power ICs.

The GBU606-K belongs to TSC's GBU-series standard bridge rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in global consumer, industrial, and lighting power supplies.

FAQ

What is the peak repetitive reverse voltage rating of the GBU606-K?

The GBU606-K has a peak repetitive reverse voltage (VRRM) rating of 800 V, as confirmed in the Absolute Maximum Ratings table on page 2 of the E2103 datasheet. This value is specific to the GBU606-K variant and distinguishes it from GBU604-K (400 V), GBU605-K (600 V), and GBU607-K (1000 V). The 800 V rating ensures reliable operation with 240 VAC mains input including line surges.

Does the GBU606-K meet UL safety standards?

Yes, the GBU606-K is UL Recognized under File #E-326243, as stated in the FEATURES section of the datasheet. This certification covers dielectric strength (1500 VRMS), flammability (UL 94V-0 molding compound), and terminal solderability (J-STD-002). The GBU606-K's UL recognition directly supports end-product safety approvals for Class II power supplies and lighting equipment.

What is the thermal resistance from junction to case for the GBU606-K?

The junction-to-case thermal resistance (R_θJC) of the GBU606-K is 2 °C/W, per the THERMAL PERFORMANCE table on page 2 of the E2103 datasheet. This low value enables accurate thermal modeling when the case temperature is measured, and supports reliable operation at full 6 A load with modest PCB copper area and natural convection cooling.

Is the GBU606-K halogen-free and RoHS compliant?

Yes, the GBU606-K is both RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as explicitly noted in the FEATURES section. This dual compliance differentiates it from the non-suffixed GBU606 and supports export to markets with strict environmental regulations, including the EU and South Korea.

What is the maximum surge current rating for the GBU606-K?

The GBU606-K has a non-repetitive peak forward surge current (IFSM) rating of 175 A for an 8.3 ms single half-sine waveform, as specified in the Absolute Maximum Ratings table. This rating is validated by the I²t value of 127 A²s and is critical for surviving capacitor-input filter inrush currents in AC/DC converters without degradation.

GBU606-K Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 4-ESIP, GBU

Packaging:: Tube

Product Status:: Active

Diode Type:: Single Phase

Technology:: Standard

Voltage - Peak Reverse (Max):: 800 V

Current - Average Rectified (Io):: 6 A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 6 A

Current - Reverse Leakage @ Vr:: 5 µA @ 800 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: GBU

GBU606-K FAQ

1.How can I place an order for GBU606-K through Aetrix?

Please submit a Request for Quotation (RFQ) for GBU606-K 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 GBU606-K reliable?

The price and inventory of GBU606-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBU606-K is usually 5 days.

3.What payment methods are accepted for GBU606-K?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBU606-K transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for GBU606-K?

GBU606-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your GBU606-K 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 GBU606-K?

For technical support, including GBU606-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBU606-K requirements.

6.How does Aetrix verify that GBU606-K is sourced from the original manufacturer or authorized distributors?

All GBU606-K 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 GBU606-K meets industry standards.

7.What is the process for return or replacement of GBU606-K?

All GBU606-K units undergo pre-shipment inspection (PSI). If there is an issue with GBU606-K, 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 GBU606-K part is unused and in its original packaging.

Return procedure for GBU606-K:

1.Submit a request within 90 days.

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

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