Taiwan Semiconductor Corporation KBU1006G T0G

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 current capability (IFSM), and UL Recognized status (E-326243); used in AC/DC front-end stages of industrial power adapters and LED lighting drivers.

For engineers reviewing the KBU1006G datasheet, KBU1006G pinout, KBU1006G application, or KBU1006G equivalent, key selection criteria include VRRM=800V, IF=10A, TJ(max)=150°C, RθJC=2.2°C/W, and KBU mechanical outline compliance with JESD201 Class 1A whisker testing.

Technical Context

The KBU1006G integrates four silicon diodes in a single-phase full-wave bridge configuration with quad-terminal layout. Its glass-passivated junction ensures stable leakage performance (IR ≤ 5 µA at 25°C, ≤500 µA at 125°C) and high reliability under thermal cycling.

Designed for PCB mounting with matte tin-plated leads (J-STD-002 compliant), it delivers 25°C/W junction-to-ambient thermal resistance and supports fusing I²t = 166 A²s under 8.3 ms half-sine surge conditions.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU1006 and W08M, the KBU1006G offers superior thermal performance (RθJC=2.2°C/W), UL recognition, and JESD201 Class 1A compliance-making it optimal for certified, thermally demanding, and long-lifecycle industrial power designs.

Availability

KBU1006G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial AC/DC adapters requiring stable component supply across multi-year production cycles.

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, serving global industrial, computing, and consumer markets since 1979.

The KBU series targets high-reliability AC/DC front-end rectification, emphasizing safety certification, thermal robustness, and long-term stability for industrial power conversion systems.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) rating for KBU1006G?

The KBU1006G has a VRRM rating of 800 V, verified in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2103). This value defines the highest reverse voltage the device can block repeatedly without breakdown and is confirmed by UL testing under E-326243. The KBU1006G must not be operated above this voltage in any design using the KBU1006G.

Does KBU1006G meet RoHS and lead-free soldering requirements?

Yes, the KBU1006G is RoHS compliant and features matte tin-plated leads qualified per J-STD-002 for solderability. Its molding compound meets UL 94V-0 flammability standards, and the device passes JESD201 Class 1A whisker testing-ensuring compatibility with lead-free reflow profiles and long-term reliability in the KBU1006G's intended applications.

What is the thermal resistance from junction to case (RθJC) for KBU1006G?

The KBU1006G has a typical junction-to-case thermal resistance (RθJC) of 2.2°C/W, as specified in the Thermal Performance section of the Taiwan Semiconductor datasheet. This low value enables effective heat transfer to an external heatsink when the KBU1006G is mounted with appropriate mechanical torque (≤0.56 N·m), supporting sustained 10 A operation at elevated ambient temperatures.

Can KBU1006G replace KBU1004G in a design?

No-KBU1006G (VRRM=800 V) and KBU1004G (VRRM=400 V) are not interchangeable without circuit review. While both share identical IF=10 A, IFSM=200 A, and KBU package, the KBU1006G's higher reverse voltage rating does not guarantee compatibility in lower-voltage designs due to differences in capacitance, leakage, and transient response. Always verify system-level stress margins before substituting the KBU1006G.

Is KBU1006G suitable for use in medical equipment?

No-the Taiwan Semiconductor datasheet explicitly states that KBU1006G products are "not designed for use in medical, life-saving, or life-sustaining applications." Engineers must select components with explicit medical-grade qualification and safety certifications (e.g., ISO 13485, IEC 60601-1) for such use cases; the KBU1006G is intended solely for industrial, commercial, and consumer power conversion where medical regulatory compliance is not required.