Taiwan Semiconductor Corporation GBU602H

Overview

GBU602H from Taiwan Semiconductor is a 6A, 100V AEC-Q101-qualified standard bridge rectifier in GBU package, featuring 1500VRMS dielectric strength, 175A surge current rating, and typical reverse leakage <5µA at 25°C. It serves as the AC-to-DC front-end in compact power adapters and industrial SMPS.

For engineers reviewing the GBU602H datasheet, GBU602H pinout, GBU602H application, or GBU602H equivalent, key selection criteria include peak reverse voltage (100V), thermal resistance (R_θJC = 2°C/W), junction temperature range (–55°C to +150°C), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

The GBU602H integrates four silicon diodes in a single-phase full-wave bridge configuration with quad-terminal layout. Its internal structure supports high-surge capability (175A, 8.3ms half-sine) and low forward voltage drop (max 1.1V at 6A, 25°C).

Thermally, it delivers R_θJA = 21°C/W (free-air) and R_θJC = 2°C/W, enabling direct PCB-mount operation without heatsink in ≤30W applications. The matte tin-plated leads comply with J-STD-002 for reliable solderability.

Key Specifications

Pinout & Package

Package: GBU - Molded plastic case with 4 axial leads (AC1, AC2, +, –), 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 and DF04S, the GBU602H uniquely combines 6A current handling, 100V blocking, AEC-Q101 qualification, and low R_θJC, making it optimal for thermally constrained automotive and industrial 20–40W power supplies where reliability and surge resilience are critical.

Availability

GBU602H is available at Aetrix Electronics and suitable for power adapters, industrial SMPS, LED drivers, and automotive auxiliary power modules requiring stable component supply and AEC-Q101 assurance.

Supply support for GBU602H 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, automotive, and consumer markets since 1979.

The GBU602H belongs to TSC's AEC-Q101-qualified GBU-series bridge rectifiers, engineered for high-reliability AC/DC conversion in space-constrained, thermally demanding applications such as automotive body electronics and industrial power supplies.

FAQ

What is the peak repetitive reverse voltage rating of the GBU602H?

The GBU602H has a peak repetitive reverse voltage (V_RRM) rating of 100 V. This value defines the maximum AC voltage the device can block during normal operation without entering avalanche breakdown. It is specifically assigned to the "602" variant in the GBU601–GBU607 family and is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version N2103). Exceeding this voltage risks irreversible damage to the GBU602H.

Is the GBU602H pin-compatible with other GBU-series rectifiers like GBU604H or GBU606H?

Yes, the GBU602H shares identical GBU package dimensions, lead configuration, and pinout with all members of the GBU601–GBU607 family, including GBU604H and GBU606H. All variants use the same quad-terminal layout (AC1, AC2, +, –) and mechanical outline. However, V_RRM differs across variants (100V for GBU602H vs. 400V for GBU604H), so substitution requires verification of voltage margin in the target circuit.

Does the GBU602H require a heatsink in typical 6A operation?

The GBU602H does not require an external heatsink in free-air operation up to ~30W output power, thanks to its low R_θJC = 2°C/W and R_θJA = 21°C/W. At 6A continuous current and 1.1V forward drop, power dissipation is ~6.6W; with ambient at 50°C, junction temperature remains below 150°C if mounted on ≥25 cm² of 2-oz copper. For sustained 6A loads above 40°C ambient, a minimal heatsink or thermal pad is recommended.

What does the "H" suffix in GBU602H signify?

The "H" suffix in GBU602H indicates full AEC-Q101 qualification per the ordering information section of the Taiwan Semiconductor datasheet. This includes rigorous stress testing for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for automotive electronic modules. The standard GBU602 lacks this qualification and is intended for commercial/industrial use only.

How does the GBU602H compare to the GBU602 in terms of thermal performance?

The GBU602H and GBU602 share identical thermal characteristics: both have R_θJC = 2°C/W and R_θJA = 21°C/W, and identical package construction and materials. The "H" suffix denotes only the AEC-Q101 qualification status-not a change in thermal design. Therefore, thermal design rules, derating curves, and heatsinking requirements apply equally to both GBU602H and GBU602.