Taiwan Semiconductor Corporation GBU15L05

Overview

GBU15L05 from Taiwan Semiconductor is a 15A, 600V low-forward-voltage quad bridge rectifier with oxide planar chip junction, UL Recognized (E-326243), and RoHS/halogen-free compliance. It delivers 0.90V max forward voltage at 7.5A/25°C and handles 200A non-repetitive surge current for SMPS input rectification.

For engineers reviewing the GBU15L05 datasheet, GBU15L05 pinout, GBU15L05 application, or GBU15L05 equivalent, key selection criteria include its 600V VRRM rating, 15A average forward current, 0.90V VF max, 150°C junction temperature limit, and GBU package thermal resistance (RθJA = 15°C/W).

Technical Context

The GBU15L05 integrates four diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals. Its oxide planar junction enables stable reverse leakage (≤5µA at 25°C, ≤150µA at 125°C) and high surge robustness (200A @ 8.3ms, I²t = 166A²s).

Thermally, it features RθJC = 3°C/W to case and RθJA = 15°C/W in free-air, supporting continuous 15A conduction up to 150°C junction temperature. The matte tin-plated GBU package meets UL 94V-0 and J-STD-002 solderability standards.

Key Specifications

Pinout & Package

Package: GBU - Molded plastic case with matte tin-plated leads, UL 94V-0 rated, 4.0g weight, polarity marked on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU15K and GBU15J, the GBU15L05 provides the lowest VF (0.90V max), AEC-Q101 qualification, and halogen-free construction - making it optimal for new energy-efficient, automotive-adjacent, and regulated lighting designs where thermal performance and compliance are critical.

Availability

GBU15L05 is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and LED lighting drivers requiring stable component supply, long-lifecycle support, and certified compliance (UL, RoHS, halogen-free).

Supply support for GBU15L05 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 GBU15L05 belongs to TSC's low-VF standard bridge rectifier product line, engineered specifically for high-efficiency AC-DC conversion in space-constrained, thermally demanding power systems.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) for GBU15L05?

The GBU15L05 has a VRRM rating of 600 V, meaning it reliably blocks up to 600 volts of reverse voltage in each diode leg under repetitive conditions. This rating is confirmed in the Absolute Maximum Ratings table and defines the upper limit for safe AC input voltage handling in applications like 230VAC SMPS front-ends.

What is the forward voltage (VF) specification for GBU15L05 at operating temperature?

The GBU15L05 specifies VF ≤ 0.90 V at 7.5 A and 25°C, and VF ≤ 0.75 V at 7.5 A and 125°C. These values reflect its low-VF oxide planar junction design, directly reducing conduction loss and thermal stress compared to standard bridges in continuous-duty applications.

Is GBU15L05 qualified for automotive applications?

The base GBU15L05 is not AEC-Q101 qualified; however, the variant GBU15L05H is explicitly AEC-Q101 qualified per ordering code notes. For automotive-adjacent or harsh-environment use, GBU15L05H must be selected - the standard GBU15L05 is intended for industrial and commercial power supplies.

What package type does GBU15L05 use, and what are its key mechanical properties?

The GBU15L05 uses the GBU molded plastic package: UL 94V-0 rated, matte tin-plated leads compliant with J-STD-002, polarity marked on top, and approximate weight of 4.0 g. Its RθJA of 15°C/W and RθJC of 3°C/W define thermal interface requirements for PCB layout and heatsinking.

How does GBU15L05 compare to GBU15L06 in terms of voltage rating and application scope?

The GBU15L05 is rated for 600V VRRM and 420V VR(RMS), while GBU15L06 is rated for 800V VRRM and 560V VR(RMS). Both share identical current ratings (15A IF, 200A IFSM) and thermal specs. GBU15L05 suits 100–230VAC inputs; GBU15L06 is preferred for 277VAC or high-surge industrial mains where higher blocking margin is needed.