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

Taiwan Semiconductor Corporation KBU1005G T0G

Name: KBU1005G T0G
Brand: Taiwan Semiconductor Corporation
SKU: KBU1005G T0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: KBU1005G T0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-SIP, KBU

Datasheet:: KBU1005G T0G.pdf

Description:: BRIDGE RECT 1PHASE 600V 10A KBU

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Inventory:9,380

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Product details

Overview

KBU1005G from Taiwan Semiconductor is a 10A, 600V repetitive peak reverse voltage (V_RRM) glass-passivated single-phase bridge rectifier in KBU package, featuring 200A surge capability, 1.1V max forward voltage at 10A/25°C, and <5µA reverse leakage at rated voltage and 25°C - used in AC/DC front-end stages of industrial power adapters and LED drivers.

For engineers reviewing the KBU1005G datasheet, KBU1005G pinout, KBU1005G application, or KBU1005G equivalent, key selection criteria include V_RRM=600V, I_F=10A, thermal resistance R_θJC=2.2°C/W, UL recognition E-326243, and RoHS-compliant matte tin-plated leads per J-STD-002.

Technical Context

This discrete bridge rectifier integrates four silicon diodes in a single-phase full-wave configuration with quad arrangement, enabling direct AC-to-DC conversion without external wiring. Its glass-passivated junction ensures stable reverse blocking and low IR drift over temperature.

Designed for PCB mounting with UL 94V-0 molding compound and JESD201 Class 1A whisker resistance, the KBU1005G supports high-reliability operation up to T_J=150°C and delivers 166 A²s fusing rating under 8.3ms half-sine surge conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Peak reverse voltage rating defining maximum AC input voltage it can block safely in SMPS front-end designs
I_F	10 A - Continuous average forward current capacity determining sustained DC output capability
I_FSM	200 A - Non-repetitive surge current handling for inrush protection during cold-start
V_F @ 10A	1.1 V max - Forward voltage drop directly impacting conduction loss and thermal design margin
R_θJC	2.2 °C/W - Junction-to-case thermal resistance enabling accurate heatsink sizing for 10A continuous operation
I_R @ 25°C	<5 µA - Reverse leakage current affecting standby power and isolation integrity in offline converters
T_J max	150 °C - Maximum junction temperature allowing operation in enclosed industrial enclosures without forced cooling

Pinout & Package

Package: KBU - molded plastic case with 4 axial leads (AC1, AC2, +, −), UL 94V-0 rated, 7.2g weight, 0.56 N·m max mounting torque.

Pin/Terminal	Circuit Role	Design Meaning
AC1	AC Input Terminal 1	One leg of AC input; connects to live or neutral depending on board layout symmetry
AC2	AC Input Terminal 2	Second AC input leg; completes full-wave rectification path with AC1
+	Positive DC Output	Full-wave rectified anode output node; feeds bulk capacitor or downstream regulator
−	Negative DC Output / Common Return	Cathode common return; establishes reference for DC bus and feedback sensing

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable IR <5 µA at 25°C and robust long-term reliability under humidity and thermal cycling
UL Recognized (E-326243)	Validates safety compliance for end-equipment certification in North American markets
Matte tin-plated leads	Ensures solderability per J-STD-002 and eliminates whisker growth risk in high-reliability applications
Junction-to-case R_θJC = 2.2°C/W	Allows direct heatsink attachment for thermal management without thermal interface material in moderate-power designs
166 A²s I²t rating	Supports robust inrush current handling during repeated cold starts without bond wire failure

Applications

Industrial Power Adapters	LED Driver Front-End
Use Scenario: Off-line AC/DC conversion for DIN-rail mounted 24V/48V industrial control power supplies. IC Role / Device Role / Timing Role: Primary rectification device converting 100–240V AC mains to unregulated DC bus. Use Value: 600V V_RRM provides 2× safety margin over 240V RMS input; 200A I_FSM withstands transformer inrush.	Use Scenario: Constant-voltage LED driver powering streetlight modules with wide-input AC range. IC Role / Device Role / Timing Role: AC input stage rectifier feeding PFC controller and DC/DC stage. Use Value: Low 1.1V V_F reduces conduction loss at 10A; glass passivation maintains leakage stability across outdoor temperature swings.
Switching Mode Power Supply	AC-DC Wall Adapters
Use Scenario: High-efficiency 65W laptop adapter with active PFC and LLC resonant topology. IC Role / Device Role / Timing Role: Input bridge rectifier preceding boost PFC stage. Use Value: R_θJC = 2.2°C/W enables compact heatsinking; UL recognition simplifies system-level safety approval.	Use Scenario: Compact 12V/2A wall plug-in adapter for consumer electronics. IC Role / Device Role / Timing Role: Full-wave rectifier delivering DC to primary-side controller IC. Use Value: Matte tin plating ensures reliable reflow soldering; 7.2g mass contributes to mechanical stability on PCB.

Industrial Power Adapters

LED Driver Front-End

Use Scenario: Off-line AC/DC conversion for DIN-rail mounted 24V/48V industrial control power supplies.

IC Role / Device Role / Timing Role: Primary rectification device converting 100–240V AC mains to unregulated DC bus.

Use Value: 600V V_RRM provides 2× safety margin over 240V RMS input; 200A I_FSM withstands transformer inrush.

Use Scenario: Constant-voltage LED driver powering streetlight modules with wide-input AC range.

IC Role / Device Role / Timing Role: AC input stage rectifier feeding PFC controller and DC/DC stage.

Use Value: Low 1.1V V_F reduces conduction loss at 10A; glass passivation maintains leakage stability across outdoor temperature swings.

Switching Mode Power Supply

AC-DC Wall Adapters

Use Scenario: High-efficiency 65W laptop adapter with active PFC and LLC resonant topology.

IC Role / Device Role / Timing Role: Input bridge rectifier preceding boost PFC stage.

Use Value: R_θJC = 2.2°C/W enables compact heatsinking; UL recognition simplifies system-level safety approval.

Use Scenario: Compact 12V/2A wall plug-in adapter for consumer electronics.

IC Role / Device Role / Timing Role: Full-wave rectifier delivering DC to primary-side controller IC.

Use Value: Matte tin plating ensures reliable reflow soldering; 7.2g mass contributes to mechanical stability on PCB.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU10K-E3/54 (Vishay)	V_RRM=800V, I_F=10A, R_θJC=2.5°C/W, same KBU footprint	Higher voltage margin suitable for 305VAC universal input; slightly higher thermal resistance	Select when designing for global 100–277VAC input with extended surge tolerance
DB105S (ON Semiconductor)	V_RRM=600V, I_F=10A, but in smaller DPAK-4 package, no UL recognition	Surface-mount alternative requiring PCB redesign; lacks UL file for safety-critical systems	Choose only for space-constrained SMT layouts where safety certification is not required

Compared with GBU10K-E3/54 and DB105S, the KBU1005G offers optimal balance of 600V rating, UL recognition, through-hole mountability, and proven thermal performance - making it preferred for certified industrial and lighting power supplies where reliability and regulatory alignment are critical.

Availability

KBU1005G is available at Aetrix Electronics and suitable for industrial power adapters, LED driver front-ends, and switching mode power supplies requiring stable component supply, long lifecycle support, and traceable sourcing.

Supply support for KBU1005G 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 KBU1005G belongs to TSC's standard bridge rectifier product line, engineered specifically for high-reliability AC/DC conversion in cost-sensitive yet thermally demanding power supply applications.

FAQ

What is the peak repetitive reverse voltage rating of the KBU1005G?

The KBU1005G has a repetitive peak reverse voltage (V_RRM) rating of 600 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2103). This value defines the maximum instantaneous reverse voltage the device can block repeatedly without breakdown, making it suitable for 240VAC mains-derived applications with appropriate safety margin.

Does the KBU1005G have UL recognition and what is the file number?

Yes, the KBU1005G is UL Recognized under File # E-326243, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This certification validates its compliance with UL 60950-1/62368-1 for use in end equipment requiring safety agency approval in North America.

What is the maximum forward voltage drop of the KBU1005G at rated current?

The KBU1005G exhibits a maximum forward voltage (V_F) of 1.1 V at I_F = 10 A and T_J = 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and directly impacts conduction losses and thermal design in continuous-duty power supplies.

Is the KBU1005G RoHS compliant and lead-free?

Yes, the KBU1005G is RoHS compliant, as confirmed in the FEATURES section of the Taiwan Semiconductor datasheet. Its matte tin-plated leads meet J-STD-002 solderability requirements and are lead-free, supporting environmentally regulated manufacturing and export compliance.

What is the thermal resistance from junction to case (R_θJC) for the KBU1005G?

The junction-to-case thermal resistance (R_θJC) of the KBU1005G is 2.2 °C/W, specified in the Thermal Performance section of the datasheet. This parameter enables precise heatsink sizing when the device is mounted to an external heatsink via its metal tab or case surface.

KBU1005G T0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 4-SIP, KBU

Packaging:: Tray

Product Status:: Obsolete

Diode Type:: Single Phase

Technology:: Standard

Voltage - Peak Reverse (Max):: 600 V

Current - Average Rectified (Io):: 10 A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 10 A

Current - Reverse Leakage @ Vr:: 5 µA @ 600 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: KBU

KBU1005G T0G FAQ

1.How can I place an order for KBU1005G T0G through Aetrix?

Please submit a Request for Quotation (RFQ) for KBU1005G T0G 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 KBU1005G T0G reliable?

The price and inventory of KBU1005G T0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KBU1005G T0G is usually 5 days.

3.What payment methods are accepted for KBU1005G T0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KBU1005G T0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for KBU1005G T0G?

KBU1005G T0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your KBU1005G T0G 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 KBU1005G T0G?

For technical support, including KBU1005G T0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KBU1005G T0G requirements.

6.How does Aetrix verify that KBU1005G T0G is sourced from the original manufacturer or authorized distributors?

All KBU1005G T0G 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 KBU1005G T0G meets industry standards.

7.What is the process for return or replacement of KBU1005G T0G?

All KBU1005G T0G units undergo pre-shipment inspection (PSI). If there is an issue with KBU1005G T0G, 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 KBU1005G T0G part is unused and in its original packaging.

Return procedure for KBU1005G T0G:

1.Submit a request within 90 days.

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

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