Vishay General Semiconductor - Diodes Division GSIB2520-E3/45

Overview

GSIB2520-E3/45 from Vishay General Semiconductor is a single-phase, single in-line bridge rectifier with 25 A average forward current, 200 V maximum repetitive peak reverse voltage, and 350 A peak surge capability. It uses glass-passivated silicon junctions in a GSIB-5S package and is rated for 150 °C junction temperature, serving as the AC/DC conversion stage in industrial switching power supplies.

For engineers reviewing the GSIB2520-E3/45 datasheet, GSIB2520-E3/45 pinout, GSIB2520-E3/45 application, or GSIB2520-E3/45 equivalent, key selection criteria include its 25 A thermal derating curve at TC = 98 °C, 1.0 V forward voltage at 12.5 A, 10 μA reverse leakage at 200 V DC blocking, and UL E54214 recognition for safety-critical designs.

Technical Context

This device integrates four diodes in a single-phase full-wave bridge configuration within a thin, molded GSIB-5S package. Its glass-passivated chip junction ensures stable reverse characteristics up to 150 °C, while the 2500 VRMS case dielectric strength supports isolation in high-noise industrial environments.

The rectifier is optimized for PCB mounting without heatsink (3.5 A rating) or bolt-down heatsink mounting (25 A rating), with thermal resistance R_θJC = 1.0 °C/W and R_θJA = 22 °C/W. Solderability meets J-STD-002 and JESD 22-B102, and matte tin plating passes JESD 201 Class 1A whisker testing.

Key Specifications

Pinout & Package

Package: GSIB-5S - Thin, single in-line, UL 94 V-0 molded case with 5 terminals; RoHS-compliant (E3 suffix), matte tin-plated leads, designed for bolt-down heatsink mounting using #6 screw and thermal compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GSIB2520-E3/45, GSIB2540-E3/45 offers higher reverse voltage headroom without changing thermal or mechanical design, while GBPC2502 trades UL certification and lower thermal resistance for different mounting geometry and reduced isolation robustness.

Availability

GSIB2520-E3/45 is available at Aetrix Electronics and suitable for industrial switching power supplies, home appliance motor drives, and office equipment power modules requiring stable component supply and long-lifecycle support.

Supply support for GSIB2520-E3/45 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

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, ruggedness, and application-specific performance.

The GSIB series targets high-current, high-reliability AC/DC front ends in industrial and consumer power systems, engineered for thermal robustness, safety certification readiness, and manufacturability in automated assembly lines.

FAQ

What is the maximum continuous forward current rating for GSIB2520-E3/45?

The GSIB2520-E3/45 is rated for 25 A average forward rectified output current when the case temperature (T_C) is maintained at 98 °C using an aluminum plate heatsink. At ambient temperature (T_A = 25 °C) with no heatsink, the rating drops to 3.5 A. This dual-rating reflects its thermal dependency and must be validated against actual board layout and airflow in the final GSIB2520-E3/45 application.

Does GSIB2520-E3/45 have UL safety certification?

Yes, GSIB2520-E3/45 carries UL recognition under file number E54214, confirming compliance with UL 60747-4 for discrete semiconductors. This certification applies to the device itself and supports simplified safety approval for end equipment. The GSIB2520-E3/45 also meets UL 94 V-0 flammability requirements for its molding compound.

What is the forward voltage drop specification for GSIB2520-E3/45?

The GSIB2520-E3/45 has a maximum instantaneous forward voltage drop of 1.0 V per diode at 12.5 A and T_A = 25 °C. Since it is a full-wave bridge, total conduction loss across both conducting diodes in series equals approximately 2.0 V at that current. This value is critical for calculating power dissipation and thermal design in the GSIB2520-E3/45 implementation.

Can GSIB2520-E3/45 be mounted directly to a PCB without a heatsink?

Yes, GSIB2520-E3/45 can be mounted directly to a PCB without an external heatsink, but its average forward current rating is then limited to 3.5 A at T_A = 25 °C. For higher current operation, Vishay specifies bolt-down mounting to an aluminum heatsink with thermal compound using a #6 screw. The GSIB2520-E3/45 datasheet provides derating curves to guide thermal design under both mounting methods.

What does the "E3/45" suffix mean in GSIB2520-E3/45?

The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads qualified to JESD 201 Class 1A for whisker resistance. The "/45" denotes tube packaging containing 45 units per tube. This ordering code is standardized across the GSIB25xx family and appears in Vishay's preferred part numbering and distribution channels for the GSIB2520-E3/45.