Taiwan Semiconductor Corporation GBPC3506M

Overview

GBPC3506M from Taiwan Semiconductor is a 35A, 600V standard bridge rectifier in GBPC-M package with quad configuration, glass-passivated junctions, and integral heatsink for low thermal resistance (1.5°C/W); used in AC-DC converters and switching mode power supplies requiring high surge current capability (400A IFSM) and low reverse leakage (<5µA).

For engineers reviewing the GBPC3506M datasheet, GBPC3506M pinout, GBPC3506M application, or GBPC3506M equivalent, key selection criteria include rated forward current (35A), peak reverse voltage (600V), thermal resistance (1.5°C/W), surge rating (400A), and GBPC-M terminal orientation where cathode is parallel to anode.

Technical Context

The GBPC3506M implements a single-phase full-wave bridge rectifier topology using four silicon diodes in a monolithic molded package. Its GBPC-M mechanical variant positions the cathode terminal parallel to the anode for PCB mounting compatibility with heatsink-integrated layouts.

Thermal performance is defined by a junction-to-case resistance of 1.5°C/W, enabling stable operation up to 150°C junction temperature. Electrical behavior includes a typical forward voltage of 1.1V per diode at rated current and reverse leakage ≤5µA at rated VRRM and 25°C.

Key Specifications

Pinout & Package

GBPC3506M uses the GBPC-M package: a molded, heatsink-integrated quad bridge with matte tin-plated leads, UL 94V-0 compound, and cathode terminal oriented parallel to anode. Mounting torque ≤20 in-lbs; polarity marked on case.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBPC3506M, Vishay GBPC3506 offers identical ratings but requires mechanical redesign due to GBPC-W orientation, while ON Semiconductor GBPC3506 matches the GBPC-M form factor but omits UL recognition-critical for medical or industrial end-product certification.

Availability

GBPC3506M is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, server PSU front-end rectification, and renewable energy inverter input stages requiring stable component supply, long-life availability, and traceable sourcing.

Supply support for GBPC3506M 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 GBPC series was designed specifically for high-current, high-reliability AC-DC front-end rectification in industrial power supplies and switching-mode applications demanding robust surge immunity and thermal stability.

FAQ

What is the maximum junction temperature rating for GBPC3506M?

The GBPC3506M has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table. This allows reliable operation in high-ambient industrial environments when mounted on an appropriate heatsink. Thermal derating curves confirm usable current capacity down to 0°C at full 35A, with linear reduction above 25°C ambient. The 1.5°C/W RθJC value must be combined with heatsink resistance to calculate actual TJ under load.

Does GBPC3506M have UL recognition, and what is the file number?

Yes, GBPC3506M is UL Recognized under file #E-326243, as stated in the official Taiwan Semiconductor datasheet. This applies to the entire GBPC15/25/35 series including the GBPC-M variant. UL recognition confirms compliance with UL 60747-1 for discrete semiconductors and supports end-equipment safety certification in North America.

What does the "M" suffix indicate in GBPC3506M?

The "M" suffix in GBPC3506M denotes the GBPC-M mechanical variant, where the cathode terminal is oriented parallel to the anode terminal-distinct from GBPC-W (perpendicular) and standard GBPC (no orientation specification). This configuration simplifies PCB layout for heatsink-mounted installations and is explicitly defined in TSC's ordering information and package drawings.

What is the forward voltage drop of GBPC3506M at rated current?

The GBPC3506M exhibits a maximum forward voltage (VF) of 1.1 V per diode at 17.5 A and 25°C junction temperature, per electrical specifications. Since it is a full-wave bridge, total conduction drop across the conducting path is 2 × VF = 2.2 V under those conditions. Pulse testing (0.3ms PW) ensures this value reflects realistic switching-converter operating conditions.

Is GBPC3506M compliant with RoHS and lead-free soldering standards?

Yes, GBPC3506M is RoHS compliant and features matte tin-plated leads qualified per J-STD-002 for solderability. It also passes JESD201 Class 1A whisker testing, confirming suitability for lead-free reflow processes. The molding compound meets UL 94V-0 flammability requirements, and all materials comply with EU Directive 2011/65/EU.