Vishay General Semiconductor - Diodes Division GSIB2580-E3/45

Overview

GSIB2580-E3/45 from Vishay General Semiconductor is a single-phase, single in-line bridge rectifier with 800 V maximum repetitive peak reverse voltage (V_RRM), 25 A average forward output current (I_F(AV)) at T_C = 98 °C, and 350 A non-repetitive peak forward surge current (I_FSM). It uses glass-passivated silicon junctions in a GSIB-5S package and is rated for operation from –55 °C to +150 °C junction temperature, commonly used in industrial switching power supplies requiring high-voltage AC/DC conversion.

For engineers reviewing the GSIB2580-E3/45 datasheet, GSIB2580-E3/45 pinout, GSIB2580-E3/45 application, or GSIB2580-E3/45 equivalent, key selection criteria include V_RRM = 800 V, I_F(AV) = 25 A with heatsink mounting, thermal resistance R_θJC = 1.0 °C/W, and UL E54214 recognition - critical for safety-compliant, high-surge industrial rectification designs.

Technical Context

This device implements a four-diode full-wave bridge configuration in a compact, thin single in-line package (GSIB-5S) with isolated terminals and integrated case dielectric strength of 2500 V_RMS. Its glass-passivated chip junction ensures stable reverse leakage (<10 μA at 25 °C) and robust surge handling up to 350 A for one half-cycle at 60 Hz.

The GSIB2580-E3/45 is thermally optimized for bolt-down mounting on aluminum heatsinks using #6 screws and silicone thermal compound (R_θJC = 1.0 °C/W), supporting continuous 25 A conduction only when case temperature is maintained at ≤98 °C - not achievable in PCB-only mounting (derated to 3.5 A at 25 °C ambient).

Key Specifications

Pinout & Package

Package: GSIB-5S - molded thermoset case meeting UL 94 V-0, with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Mounting torque: 5.7 cm·kg recommended (max 10 cm·kg). Polarity marked on body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GSIB2580-E3/45, the E3/54 variant offers identical performance in tape-and-reel format for automated assembly, while GBPC2580 trades 50 A lower surge rating and 0.1 V higher forward drop for potential cost savings - requiring revalidation of thermal and transient margins in mission-critical systems.

Availability

GSIB2580-E3/45 is available at Aetrix Electronics and suitable for industrial switching power supplies, home appliance motor drives, and office equipment AC adapters requiring stable component supply with UL safety certification and high-surge rectification capability.

Supply support for GSIB2580-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 division of Vishay Intertechnology, Inc., specializing in discrete semiconductors including diodes, rectifiers, MOSFETs, and optoelectronics for industrial, automotive, and computing markets.

The GSIB series was designed specifically for high-current, high-voltage AC/DC bridge rectification in space-constrained industrial power supplies, emphasizing thermal performance, safety certification, and surge robustness over general-purpose alternatives.

FAQ

What is the maximum continuous forward current rating for GSIB2580-E3/45?

The GSIB2580-E3/45 is rated for 25 A average forward rectified output current (I_F(AV)) only when the case temperature (T_C) is maintained at ≤98 °C via heatsink mounting. At 25 °C ambient with no heatsink, the rating drops to 3.5 A. This derating reflects its thermal design intent for bolt-down heatsink use, not PCB-only operation.

Does GSIB2580-E3/45 meet UL safety certification?

Yes, GSIB2580-E3/45 carries UL recognition file number E54214, confirming compliance with UL/CSA safety standards for use in end equipment requiring certified rectification components. This certification covers construction, flammability (UL 94 V-0 molding compound), and dielectric strength (2500 V_RMS).

What is the thermal resistance from junction to case for GSIB2580-E3/45?

The GSIB2580-E3/45 has a typical junction-to-case thermal resistance (R_θJC) of 1.0 °C/W when mounted to an aluminum heatsink using recommended torque (5.7 cm·kg) and silicone thermal compound. This value assumes direct metal-to-metal contact per Vishay's mounting note #3 and is essential for calculating maximum allowable power dissipation.

Can GSIB2580-E3/45 be used without a heatsink?

GSIB2580-E3/45 can operate without a heatsink only at significantly reduced current: 3.5 A average forward current at 25 °C ambient (T_A). Its R_θJA is 22 °C/W in PCB-mount configuration, making sustained 25 A operation impossible without heatsink mounting - attempting so would exceed the +150 °C maximum junction temperature.

What does the "E3/45" suffix mean in GSIB2580-E3/45?

The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads qualified to JESD 201 Class 1A whisker testing. The "/45" denotes tube packaging containing 20 units per tube, as specified in Vishay's ordering information table - distinct from tape-and-reel variants like E3/54.