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Taiwan Semiconductor Corporation KBU1006G
- Part No.:
- KBU1006G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, KBU
- Datasheet:
-
KBU1006G.pdf
- Description:
- BRIDGE RECT 1PHASE 800V 10A KBU
- Quantity:
- Payment:
- Shipping:
Inventory:295
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Product details
Overview
KBU1006G from Taiwan Semiconductor is a 10A, 800V repetitive peak reverse voltage (VRRM) standard bridge rectifier in KBU package, featuring glass-passivated junctions, 200A surge capability (IFSM), and UL Recognized File # E-326243 compliance; it serves as the AC/DC front-end rectification stage in compact offline power supplies.
For engineers reviewing the KBU1006G datasheet, KBU1006G pinout, KBU1006G application, or KBU1006G equivalent, key selection criteria include VRRM = 800V, IF = 10A continuous, RθJC = 2.2°C/W thermal resistance, TJ max = 150°C, and matte tin-plated leads compliant with J-STD-002 solderability.
Technical Context
The KBU1006G integrates four silicon diodes in a single-phase full-wave bridge configuration with quad-terminal layout (AC1, AC2, +, –), enabling direct replacement of discrete diode bridges in space-constrained PCB layouts. Its glass-passivated junction ensures stable leakage performance (IR ≤ 5 µA at 25°C) and high reliability under thermal cycling.
Designed for conduction-mode operation in universal-input SMPS, it supports 8.3ms non-repetitive surge currents up to 200A and delivers low forward voltage drop (VF ≤ 1.1V at 10A, 25°C), minimizing conduction losses in 50–60Hz line-frequency rectification stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum repetitive reverse voltage the device blocks without breakdown; defines usable input voltage range in AC line rectification. |
| IF | 10 A - Continuous average forward current rating; determines maximum DC output current capability after rectification. |
| IFSM | 200 A - Peak non-repetitive surge current (8.3ms half-sine); enables robust startup and transient overload handling. |
| RθJC | 2.2 °C/W - Junction-to-case thermal resistance; allows accurate heatsink sizing when mounted to metal chassis or PCB copper pour. |
| IR | ≤ 5 µA @ 25°C - Reverse leakage per diode; ensures minimal standby power loss in offline adapters and lighting drivers. |
| TJ max | 150 °C - Maximum allowable junction temperature; sets thermal design margin for continuous operation in enclosed environments. |
Pinout & Package
Package: KBU - Molded plastic case with matte tin-plated leads, UL 94V-0 rated, 7.2g weight, designed for through-hole mounting with 0.56 N·m max torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One leg of AC input; connects to live/neutral side of transformer secondary or AC line. |
| AC2 | AC Input Terminal 2 | Second leg of AC input; completes full-wave bridge input path with AC1. |
| + | Positive DC Output | Full-wave rectified positive output node; feeds bulk capacitor or downstream converter. |
| – | Negative DC Output / Common Return | DC return path; referenced to system ground or negative rail in isolated topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enables stable IR < 5 µA at 25°C and long-term reliability in humid or thermally cycled environments. |
| UL Recognized File # E-326243 | Validates safety compliance for end-equipment certification (e.g., UL 62368-1) without additional component-level testing. |
| JESD 201 Class 1A whisker resistance | Prevents tin whisker growth on leads, eliminating risk of short circuits in high-reliability industrial or lighting applications. |
| 25°C/W RθJA (typ.) | Supports natural convection cooling on standard FR-4 PCBs with ≥ 4 in² copper area, reducing need for external heatsinks. |
Applications
| LED Driver Power Supply | Desktop PC SMPS |
|---|---|
Use Scenario: Rectifying 100–240 VAC input in constant-current LED drivers for commercial lighting fixtures. IC Role / Device Role / Timing Role: Primary AC/DC conversion element delivering unregulated DC bus to PWM controller and MOSFET switch. Use Value: 800V VRRM provides 2× safety margin over 240 VAC RMS, while 200A IFSM withstands inrush into large electrolytic banks. | Use Scenario: Front-end rectification in ATX-compliant desktop power supplies with active PFC pre-regulator. IC Role / Device Role / Timing Role: Bulk rectifier converting AC line to high-voltage DC bus feeding the PFC boost stage. Use Value: Low VF (≤1.1 V) reduces conduction loss at 10A, improving overall efficiency; UL recognition simplifies end-product safety approval. |
| Wall Adapter for Consumer Electronics | Industrial Control Power Module |
Use Scenario: Compact 12 V/5 A wall adapter powering routers, set-top boxes, and IoT gateways. IC Role / Device Role / Timing Role: Isolated AC/DC interface providing regulated low-voltage DC output via flyback topology. Use Value: KBU package footprint fits tight board space; RoHS compliance meets global environmental requirements for consumer goods. | Use Scenario: Auxiliary power supply in PLC I/O modules requiring reliable 24 VDC generation from 120/230 VAC mains. IC Role / Device Role / Timing Role: Mains-fed rectifier feeding linear regulator or buck converter for control logic rails. Use Value: 150°C TJ max and –55°C to +150°C storage range ensure operation in harsh factory environments with wide ambient swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU1006 | VRRM = 800 V, IF = 10 A, but GBU package has larger footprint and higher RθJA (30°C/W). | Less suitable for space-constrained designs; requires larger PCB area and more copper for thermal management. | Choose GBU1006 only if legacy board layout or distributor stock mandates GBU form factor. |
| W08M | VRRM = 800 V, IF = 10 A, but W08M uses WOB package with lower profile and different lead pitch (5.0 mm vs. KBU's 5.1 mm). | Compatible in height-sensitive applications (e.g., ultra-thin adapters), but requires PCB footprint revision. | Select W08M when mechanical envelope limits KBU height or when sourcing flexibility across multiple distributors is critical. |
Compared with GBU1006 and W08M, the KBU1006G offers optimal balance of thermal performance (RθJC = 2.2°C/W), UL recognition, and standardized KBU footprint-making it preferred for new designs targeting cost-effective, certified, and thermally efficient AC/DC front-ends.
Availability
KBU1006G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and wall adapters requiring stable component supply, consistent parametric performance, and full regulatory documentation support.
Supply support for KBU1006G 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 KBU1006G belongs to TSC's standard bridge rectifier product line, engineered for high-volume, cost-sensitive AC/DC power conversion applications where reliability, safety certification, and thermal robustness are essential.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for KBU1006G?
The KBU1006G has a VRRM rating of 800 V, meaning it reliably blocks up to 800 volts of repetitive reverse voltage across its AC terminals. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2103) and defines the upper limit of AC input voltage the device can safely handle in full-wave rectification applications.
Does KBU1006G meet RoHS and UL safety requirements?
Yes, the KBU1006G is RoHS compliant and UL Recognized under File # E-326243. These certifications are explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet and verified on authorized distributor listings. Compliance ensures suitability for commercial and industrial end equipment requiring environmental and safety regulatory adherence.
What is the forward voltage drop (VF) of KBU1006G at 10A and 25°C?
The forward voltage drop of KBU1006G is specified as ≤1.1 V at IF = 10 A and TJ = 25°C, per the Electrical Specifications table. This value reflects worst-case conduction loss per diode pair during steady-state operation and directly impacts thermal design and efficiency calculations in power supply front-ends.
Can KBU1006G be used in surface-mount designs?
No, the KBU1006G uses a through-hole KBU package with axial leads intended for wave or hand soldering. It is not a surface-mount device. The package outline drawing confirms lead spacing and body dimensions optimized for PCB mounting with mechanical retention, and no SMD variant (e.g., KBU-SMT) is listed in the ordering information or mechanical data.
What is the junction-to-case thermal resistance (RθJC) of KBU1006G?
The junction-to-case thermal resistance of KBU1006G is 2.2°C/W, as published in the Thermal Performance section of the Taiwan Semiconductor datasheet. This parameter enables precise calculation of case temperature rise under load and informs heatsink selection or PCB copper area requirements when mounting the device to a metal chassis or thermal pad.
KBU1006G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 4-SIP, KBU
- Packaging:
- Tray
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 800 V
- Current - Average Rectified (Io):
- 10 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 10 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:
- KBU
KBU1006G FAQ
1.How can I place an order for KBU1006G through Aetrix?
Please submit a Request for Quotation (RFQ) for KBU1006G 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 KBU1006G reliable?
The price and inventory of KBU1006G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KBU1006G is usually 5 days.
3.What payment methods are accepted for KBU1006G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KBU1006G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KBU1006G?
KBU1006G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KBU1006G 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 KBU1006G?
For technical support, including KBU1006G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KBU1006G requirements.
6.How does Aetrix verify that KBU1006G is sourced from the original manufacturer or authorized distributors?
All KBU1006G 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 KBU1006G meets industry standards.
7.What is the process for return or replacement of KBU1006G?
All KBU1006G units undergo pre-shipment inspection (PSI). If there is an issue with KBU1006G, 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 KBU1006G part is unused and in its original packaging.
Return procedure for KBU1006G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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