Taiwan Semiconductor Corporation GBPC3506

Overview

GBPC3506 from Taiwan Semiconductor is a 35A, 600V standard single-phase bridge rectifier in GBPC package with quad diode configuration, glass-passivated junctions, and integrally molded heatsink for low thermal resistance (1.5°C/W); used in AC-DC converters and switching mode power supplies requiring high surge capability (400A IFSM) and low leakage (<5µA IR).

For engineers reviewing the GBPC3506 datasheet, GBPC3506 pinout, GBPC3506 application, or GBPC3506 equivalent, key selection criteria include peak reverse voltage (600V), average forward current (35A), thermal resistance (1.5°C/W), surge rating (400A), and GBPC mechanical footprint compatibility with heatsink mounting.

Technical Context

This discrete bridge rectifier integrates four silicon diodes in a single-phase full-wave configuration, enabling direct AC-to-DC conversion without external wiring. Its glass-passivated junction ensures stable reverse leakage (<5µA at 25°C) and robustness against humidity and contamination.

The GBPC package features an integrally molded heatsink with 4 mounting holes and a cathode indicator on the chamfered corner; thermal performance is defined by R_θJC = 1.5°C/W, supporting continuous operation up to T_J = 150°C with proper heatsinking.

Key Specifications

Pinout & Package

GBPC3506 uses the GBPC through-hole package: 4-pin single-phase bridge with integrated heatsink base, 29.0 × 19.1 mm outline, 4× Ø5.59 mm mounting holes, matte tin-plated leads, UL 94V-0 molding compound, and cathode polarity marked on chamfered corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBPC3506, the Vishay alternative offers identical performance and drop-in mechanical compatibility, while the ON Semiconductor version trades minor thermal and voltage-drop penalties for enhanced whisker resistance-making it suitable where long-term storage or high-humidity deployment is critical.

Availability

GBPC3506 is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, switching mode power supplies (SMPS), and uninterruptible power systems (UPS) requiring stable component supply, consistent thermal performance, and UL-recognized safety compliance.

Supply support for GBPC3506 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 rectifiers, TVS diodes, MOSFETs, and power ICs since 1979.

The GBPC series was developed specifically for high-reliability industrial and computing power conversion applications demanding robust surge immunity, low thermal resistance, and long-lifetime stability under continuous load.

FAQ

What is the maximum junction temperature rating for GBPC3506?

The GBPC3506 has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings in the Taiwan Semiconductor datasheet. This rating assumes proper heatsinking to maintain R_θJC ≤ 1.5°C/W. Operation beyond this limit risks irreversible degradation of the glass-passivated junctions and reduced long-term reliability of the GBPC3506.

Does GBPC3506 have UL recognition?

Yes, GBPC3506 is UL Recognized under File # E-326243, confirming compliance with UL 60747-1 for discrete semiconductors. This recognition covers flammability (UL 94V-0), terminal solderability (J-STD-002), and mechanical construction-critical for end-product safety certification in North America. The GBPC3506 listing applies specifically to the GBPC package variant.

What is the forward voltage drop specification for GBPC3506 at rated current?

The GBPC3506 specifies a maximum forward voltage (V_F) of 1.1 V per diode at I_F = 17.5 A and T_J = 25°C, measured under pulse conditions (PW = 0.3 ms). This value reflects conduction loss in one diode leg; total bridge drop is ~2.2 V under full-wave conduction. Actual V_F increases with junction temperature and current, as shown in Figure 4 of the GBPC3506 datasheet.

Can GBPC3506 be mounted directly to a heatsink?

Yes, GBPC3506 features an integrally molded heatsink base with four Ø5.59 mm mounting holes, designed for direct mechanical attachment to external heatsinks using M4 screws (max torque 20 in-lbs). The case material meets UL 94V-0, and thermal interface materials are recommended to minimize R_θCS; the 1.5°C/W R_θJC rating assumes optimal mounting pressure and surface flatness for the GBPC3506.

What does the "06" suffix indicate in GBPC3506?

The "06" in GBPC3506 denotes the peak repetitive reverse voltage rating: 600 V. Per Taiwan Semiconductor's ordering convention, "005" = 50 V, "01" = 100 V, "02" = 200 V, "04" = 400 V, "06" = 600 V, "08" = 800 V, and "10" = 1000 V. Thus, GBPC3506 is the 35 A, 600 V variant within the GBPC15/25/35 family.