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Taiwan Semiconductor Corporation KBU1002G T0G
- Part No.:
- KBU1002G T0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, KBU
- Datasheet:
-
KBU1002G T0G.pdf
- Description:
- BRIDGE RECT 1PHASE 100V 10A KBU
- Quantity:
- Payment:
- Shipping:
Inventory:8,679
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Product details
Overview
KBU1002G from Taiwan Semiconductor is a 10A, 100V repetitive peak reverse voltage (VRRM) glass-passivated single-phase bridge rectifier in KBU package, featuring 200A surge current capability, 1.1V max forward voltage at 10A/25°C, and <5µA reverse leakage at 25°C - used in AC-DC front-end stages of compact switch-mode power supplies.
For engineers reviewing the KBU1002G datasheet, KBU1002G pinout, KBU1002G application, or KBU1002G equivalent, key selection criteria include VRRM rating, IFSM robustness, thermal resistance (RθJC = 2.2°C/W), and UL recognition for safety-critical adapter and lighting designs.
Technical Context
The KBU1002G integrates four silicon diodes in a single-phase full-wave bridge configuration with glass-passivated junctions for enhanced reliability and moisture resistance. Its KBU package uses matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 1A whisker testing.
Thermally, it delivers RθJA = 25°C/W (free-air) and RθJC = 2.2°C/W, enabling operation up to TJ = 150°C. Electrical behavior is characterized by low VF (≤1.1V @ 10A), tight IR control (<5µA @ 25°C), and high I²t rating (166 A²s) for transient surge resilience.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse voltage the device blocks without breakdown in normal operation |
| IF(AV) | 10 A - average forward current rating under specified thermal conditions, defining continuous DC output capability |
| IFSM | 200 A - non-repetitive peak surge current handling for 8.3 ms half-sine, critical for inrush and line-transient immunity |
| RθJC | 2.2 °C/W - junction-to-case thermal resistance, enabling efficient heat transfer to heatsink or PCB copper area |
| VF @ 10A | ≤1.1 V - forward voltage drop at rated current, directly impacting conduction loss and thermal design margin |
| IR @ 25°C | ≤5 µA - reverse leakage per diode at rated VR, ensuring low standby power loss in offline converters |
| I²t | 166 A²s - fusing integral, quantifying energy withstand before thermal failure during short-duration overloads |
Pinout & Package
Package: KBU - molded plastic case with 4 axial leads (AC1, AC2, +, –), UL 94V-0 rated, 7.2g weight, designed for through-hole PCB mounting and mechanical stability under 0.56 N·m torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One leg of AC input; paired with AC2 to accept full-wave AC source before rectification |
| AC2 | AC Input Terminal 2 | Second leg of AC input; forms differential AC port with AC1 for bridge input |
| + | Positive DC Output | Full-wave rectified positive output node; connects to bulk capacitor or downstream regulator input |
| – | Negative DC Output / Common Return | Full-wave rectified negative return path; serves as system ground reference for DC output stage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability and humidity resistance versus epoxy-passivated alternatives, critical for industrial adapters |
| UL Recognized (E-326243) | Validates compliance with UL 60747-4 for discrete semiconductors, reducing safety certification effort in end equipment |
| Junction-to-case RθJC = 2.2°C/W | Enables direct thermal coupling to metal chassis or heatsink, supporting higher ambient temperature operation without derating |
| Matte tin-plated leads | Ensures consistent solder wetting and intermetallic formation per J-STD-002, improving manufacturing yield and joint integrity |
| RoHS Compliant | Meets EU Directive 2011/65/EU for restricted hazardous substances, supporting global market access and environmental compliance |
Applications
| LED Driver Power Supply | USB-C Wall Adapter |
|---|---|
Use Scenario: Converts universal AC input (90–264 VAC) to unregulated DC bus feeding a flyback controller and LED constant-current driver IC. IC Role / Device Role / Timing Role: Primary-side AC-DC rectification stage; provides isolated DC rail while surviving line surges and ESD transients. Use Value: 200A IFSM and 166 A²s I²t rating ensure survival during lightning-induced line spikes common in residential lighting installations. | Use Scenario: Front-end rectifier in compact 30W USB-C PD adapter with active clamp flyback topology operating at 100 kHz switching frequency. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting AC mains to high-voltage DC bus; interfaces directly with PFC or transformer primary. Use Value: Low 1.1V VF at 10A minimizes conduction loss and thermal stress, enabling smaller heatsink or no heatsink in space-constrained adapter enclosures. |
| Industrial Control Power Module | Smart Home Gateway Power Stage |
Use Scenario: Powers 24V DC logic and relay drivers in DIN-rail mounted PLC I/O modules exposed to factory floor environments. IC Role / Device Role / Timing Role: Mains-input rectifier feeding bulk capacitor and linear/LDO post-regulation; operates continuously at elevated ambient temperatures. Use Value: 150°C max junction temperature and -55°C to +150°C storage range support reliable operation in unventilated industrial cabinets. | Use Scenario: AC-DC conversion in battery-backed smart home hub with always-on Wi-Fi/Bluetooth, requiring low standby leakage and high reliability. IC Role / Device Role / Timing Role: Bridge rectifier in quasi-resonant flyback supplying 5V/3.3V rails; must minimize no-load power consumption. Use Value: ≤5 µA reverse leakage at 25°C and ≤500 µA at 125°C directly reduces no-load input power, extending backup runtime during outages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU1002 | VRRM = 100 V, IF = 10 A, but GBU package has lower RθJC (1.8°C/W) and higher IFSM (250 A); lead finish differs (SnPb vs matte tin) | Preferred where higher surge margin or lower thermal resistance is required; not RoHS-compliant due to SnPb plating | Select GBU1002 only if SnPb soldering process is used and higher IFSM is needed; verify compatibility with UL/CE safety approvals |
| W10M | VRRM = 1000 V, IF = 1.5 A - significantly lower current rating and higher voltage rating; DO-15 package, not KBU | Suitable for low-power, high-voltage applications like sensor signal conditioning, not for 10A SMPS front-ends | W10M is not a functional replacement for KBU1002G due to 85% lower current rating and incompatible package; use only in low-current, high-VRRM niche cases |
Compared with GBU1002 and W10M, the KBU1002G offers balanced 10A/100V performance in a RoHS-compliant, UL-recognized KBU package optimized for mid-power adapters and lighting - whereas GBU1002 trades compliance for surge margin, and W10M sacrifices current capacity for voltage headroom.
Availability
KBU1002G is available at Aetrix Electronics and suitable for switch-mode power supplies, USB-C wall adapters, and LED driver modules requiring stable component supply across production volumes and extended lifecycle planning.
Supply support for KBU1002G 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, consumer, and computing markets since 1979.
The KBU1002G belongs to TSC's standard bridge rectifier product line, engineered for cost-effective, high-reliability AC-DC conversion in compact, thermally constrained power supplies targeting global safety and environmental compliance.
FAQ
What is the maximum junction temperature rating for the KBU1002G?
The KBU1002G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version J2103). This allows sustained operation in high-ambient environments such as enclosed LED drivers or industrial control units. The KBU1002G must be thermally managed using its 2.2°C/W junction-to-case resistance to avoid exceeding this limit during 10A continuous conduction.
Does the KBU1002G meet RoHS and UL requirements?
Yes, the KBU1002G is RoHS compliant per EU Directive 2011/65/EU and UL Recognized under File #E-326243, confirming compliance with UL 60747-4 for discrete semiconductors. These certifications are explicitly stated in the "Features" and "Ordering Information" sections of the Taiwan Semiconductor datasheet. The KBU1002G's UL recognition simplifies end-product safety certification for power adapters and lighting systems.
What is the forward voltage drop of the KBU1002G at full rated current?
The KBU1002G exhibits a maximum forward voltage drop (VF) of 1.1 V at 10 A and 25°C junction temperature, as specified in the "Electrical Specifications" table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At higher temperatures or continuous DC load, VF decreases slightly due to negative temperature coefficient, but system design should conservatively use 1.1 V for worst-case loss calculation in the KBU1002G.
Can the KBU1002G replace the KBU1001G in an existing design?
Yes, the KBU1002G can directly replace the KBU1001G because both share identical package (KBU), pinout, IF = 10 A, IFSM = 200 A, and thermal specs - differing only in VRRM (100 V vs 50 V). Since the KBU1002G offers higher reverse voltage margin, it improves robustness against line transients without layout or thermal changes. No redesign is needed when upgrading from KBU1001G to KBU1002G.
What is the reverse leakage current specification for the KBU1002G?
The KBU1002G specifies a maximum reverse leakage current (IR) of 5 µA per diode at 25°C and rated reverse voltage (100 V), and up to 500 µA at 125°C, per the "Electrical Specifications" table. These values are measured using a 30 ms pulse test to prevent thermal runaway. Low IR ensures minimal standby power loss in always-on applications such as smart home gateways powered by the KBU1002G.
KBU1002G 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):
- 100 V
- Current - Average Rectified (Io):
- 10 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 10 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- KBU
KBU1002G T0G FAQ
1.How can I place an order for KBU1002G T0G through Aetrix?
Please submit a Request for Quotation (RFQ) for KBU1002G 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 KBU1002G T0G reliable?
The price and inventory of KBU1002G T0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KBU1002G T0G is usually 5 days.
3.What payment methods are accepted for KBU1002G T0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KBU1002G T0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KBU1002G T0G?
KBU1002G T0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KBU1002G 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 KBU1002G T0G?
For technical support, including KBU1002G T0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KBU1002G T0G requirements.
6.How does Aetrix verify that KBU1002G T0G is sourced from the original manufacturer or authorized distributors?
All KBU1002G 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 KBU1002G T0G meets industry standards.
7.What is the process for return or replacement of KBU1002G T0G?
All KBU1002G T0G units undergo pre-shipment inspection (PSI). If there is an issue with KBU1002G 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 KBU1002G T0G part is unused and in its original packaging.
Return procedure for KBU1002G T0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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