Taiwan Semiconductor Corporation GBU602

Overview

GBU602 from Taiwan Semiconductor is a 6A, 100V repetitive peak reverse voltage (VRRM) standard bridge rectifier in GBU package, featuring 175A surge current capability, 1.1V max forward voltage at 6A, and <5µA reverse leakage at 25°C - used in AC/DC front-end stages of compact SMPS and LED drivers.

For engineers reviewing the GBU602 datasheet, GBU602 pinout, GBU602 application, or GBU602 equivalent, key selection criteria include VRRM margin for line-voltage transients, thermal resistance (R_θJC = 2°C/W), junction temperature rating (–55°C to +150°C), and UL recognition (E-326243) for safety-compliant power designs.

Technical Context

The GBU602 integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals, enabling direct AC-to-DC conversion without external wiring. Its GBU molded package provides 1500V_RMS dielectric isolation and meets UL 94V-0 flammability requirements.

Thermally, it delivers R_θJA = 21°C/W (free-air) and R_θJC = 2°C/W, supporting high-power-density layouts where heatsinking is limited. Electrical behavior is characterized at TA = 25°C with pulse-tested VF and IR, and validated across –55°C to +150°C operating range.

Key Specifications

Pinout & Package

Package: GBU - molded plastic case with matte tin-plated leads, UL 94V-0 rated, 4.0g weight, 0.56 N·m max mounting torque.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU602, GBU6K trades marginal thermal and voltage-drop penalties for broader distributor availability, while KBU6A offers lower VF at the cost of higher reverse leakage - both require verification of mechanical fit and layout clearance despite identical GBU/KBU outline compatibility.

Availability

GBU602 is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial control power modules requiring stable component supply, long-term lifecycle support, and RoHS/halogen-free compliance.

Supply support for GBU602 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 GBU602 belongs to TSC's standard bridge rectifier product line, engineered for high-reliability AC/DC conversion in space-constrained, thermally demanding power supply applications - emphasizing safety certification, surge robustness, and thermal efficiency.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) rating for the GBU602?

The GBU602 has a VRRM rating of 100 V, meaning it can block up to 100 volts of repetitive reverse voltage across its AC terminals without breakdown. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version N2103), and corresponds to a 70V_RMS AC input capability - sufficient for 100VAC nominal systems with safety margin.

Does the GBU602 have UL recognition and what is the file number?

Yes, the GBU602 is UL Recognized under File # E-326243, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This certification applies to the entire GBU601–GBU607 family and validates compliance with UL 60747-4 for discrete semiconductor devices, supporting end-product safety approvals.

What is the thermal resistance from junction to case (R_θJC) for the GBU602?

The GBU602 has a typical junction-to-case thermal resistance (R_θJC) of 2°C/W, per the THERMAL PERFORMANCE table in the datasheet. This low value enables efficient heat transfer from the silicon die to the PCB pad or heatsink, making it suitable for high-power-density designs where thermal management is critical.

Is the GBU602 available in an AEC-Q101 qualified version?

Yes - the AEC-Q101 qualified variant is designated GBU602H, as specified in the ORDERING INFORMATION section. The "H" suffix indicates qualification to the AEC-Q101 stress test standard for discrete semiconductors, including tests for temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing.

What is the forward voltage (VF) specification for the GBU602 at full rated current?

The GBU602 has a maximum forward voltage (VF) of 1.1 V at IF = 6 A and TJ = 25°C, as listed in the ELECTRICAL SPECIFICATIONS table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss at full load, directly impacting power dissipation and thermal design.