Taiwan Semiconductor Corporation GBU1006-K

Overview

GBU1006-K from Taiwan Semiconductor is a 10A, 800V repetitive peak reverse voltage (V_RRM) standard bridge rectifier in GBU package, featuring quad-diode configuration, 200A surge capability (t = 8.3 ms), 1.7°C/W junction-to-lead thermal resistance, and UL Recognized (E-326243) construction - used in AC/DC front-end stages of switching mode power supplies.

For engineers reviewing the GBU1006-K datasheet, GBU1006-K pinout, GBU1006-K application, or GBU1006-K equivalent, key selection criteria include V_RRM = 800 V, I_F = 10 A continuous, I_FSM = 200 A surge rating, thermal performance under heatsink mounting, and RoHS/halogen-free compliance for industrial power adapter designs.

Technical Context

The GBU1006-K integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals. Its 800 V V_RRM rating targets mid-voltage SMPS inputs, while the 1.2°C/W junction-to-case thermal resistance enables efficient heat transfer when mounted on an aluminum heatsink plate (4" × 6" × 0.25").

Electrical behavior is characterized by forward voltage drop of 0.98 V max at 10 A / 25°C and reverse leakage ≤5 μA at 25°C - critical for efficiency and standby loss in offline converters. Junction capacitance per diode is 68 pF at 1 MHz / 4 V, influencing high-frequency noise filtering performance.

Key Specifications

Pinout & Package

GBU1006-K uses the industry-standard GBU molded plastic package (UL 94V-0 rated), measuring 22.30 mm × 18.80 mm × 7.90 mm (L × W × H), with matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 1 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU1006 and GBU10J, the GBU1006-K offers identical core performance but adds UL recognition and tube packaging - making it preferred for safety-certified industrial and consumer power supplies where traceability and compliance documentation are mandatory.

Availability

GBU1006-K is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, flat panel TV power systems, and computer monitor power modules requiring stable component supply, long-term lifecycle support, and certified safety compliance.

Supply support for GBU1006-K 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 power rectifiers, TVS devices, and MOSFETs since 1979.

The GBU series was developed specifically for high-reliability, high-surge AC/DC front-end rectification in industrial and consumer power supplies - emphasizing thermal robustness, safety certification, and consistent parametric performance across voltage grades.

FAQ

What is the peak repetitive reverse voltage (V_RRM) rating of the GBU1006-K?

The GBU1006-K has a V_RRM rating of 800 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2305). This value is specific to the GBU1006-K variant and distinguishes it from the 600 V GBU1005-K and 1000 V GBU1007-K. The 800 V rating allows safe operation with 230 V_AC mains plus transient margins in universal-input power supplies.

Does the GBU1006-K have UL recognition, and what is the file number?

Yes, the GBU1006-K is UL Recognized under file number E-326243, as explicitly stated in the FEATURES section of the official datasheet. This recognition applies to the GBU1006-K part number and confirms compliance with UL 60950-1/62368-1 for end-equipment safety certification - a requirement for many commercial and industrial power supply designs.

What is the forward voltage drop (V_F) of the GBU1006-K at 10 A and 25°C?

The forward voltage drop of the GBU1006-K is specified as 0.98 V maximum at I_F = 10 A and T_J = 25°C, per the Electrical Specifications table. This value reflects worst-case conduction loss per diode in the bridge; actual measured V_F is typically 0.92 V at 5 A and 25°C, supporting accurate thermal modeling in power supply design.

Is the GBU1006-K RoHS compliant and halogen-free?

Yes, the GBU1006-K is RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as documented in the FEATURES section. The molding compound and plating meet these environmental standards, enabling use in markets with strict chemical content regulations including the EU, China, and South Korea.

What is the thermal resistance from junction to case (R_θJC) for the GBU1006-K?

The junction-to-case thermal resistance (R_θJC) of the GBU1006-K is 1.2°C/W, as published in the Thermal Performance section of the datasheet. This value assumes proper mechanical mounting on a heatsink; it enables precise junction temperature calculation using T_J = T_C + (P_LOSS × 1.2), critical for reliability validation in high-ambient applications.