Vishay General Semiconductor - Diodes Division EGF1THE3_A/H

Overview

EGF1THE3_A/H from Vishay General Semiconductor is a surface-mount glass-passivated ultrafast rectifier in DO-214BA (GF1) package, rated for 1300 V repetitive peak reverse voltage, 1.0 A average forward current, and 75 ns typical reverse recovery time. It serves as a single-anode/cathode high-voltage rectifier in photoflash power charging circuits where fast switching, low loss, and avalanche energy tolerance are critical.

For engineers reviewing the EGF1THE3_A/H datasheet, EGF1THE3_A/H pinout, EGF1THE3_A/H application, or EGF1THE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 15 mJ non-repetitive avalanche energy rating, 3.0 V forward voltage at 1.0 A, and compliance with MSL Level 1 (250 °C peak reflow).

Technical Context

This device implements a Superectifier® structure - a proprietary planar junction design with cavity-free glass passivation - enabling robust reliability under high dv/dt and repetitive surge stress. Its ultrafast trr of 75 ns (measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A) minimizes switching losses in high-frequency DC-DC and flyback topologies.

Thermally, it features RθJA = 50 °C/W and RθJL = 20 °C/W when mounted on a 24 mm × 24 mm copper pad, supporting operation up to TJ = 150 °C. The matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and HE3 suffix confirms JESD 201 Class 2 whisker resistance.

Key Specifications

Pinout & Package

Package: GF1 (DO-214BA), surface-mount molded plastic over glass body, UL 94 V-0 rated, cathode indicated by color band.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast high-voltage rectifier applications.

Compared with EGF1THE3_A/H, EGF1T-E3/54 offers identical electrical performance but inferior thermal and space efficiency in DO-214AC, while MUR115HE3/A trades higher VF and lower EAS for broader voltage margin - neither is pin-compatible, and both require layout review for mechanical fit and thermal validation.

Availability

EGF1THE3_A/H is available at Aetrix Electronics and suitable for photoflash charging circuits, industrial HV DC-DC converters, and automotive camera flash modules requiring stable component supply, AEC-Q101 compliance, and MSL Level 1 reflow capability.

Supply support for EGF1THE3_A/H 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 automotive-grade qualification.

The EGF1THE3_A/H belongs to Vishay's Superectifier® ultrafast rectifier product line, engineered specifically for high-voltage, high-reliability applications demanding fast recovery, high surge tolerance, and extended temperature operation in photoflash, ignition, and industrial power systems.

FAQ

What does the "HE3_A/H" suffix mean in EGF1THE3_A/H?

The "HE3" denotes Vishay's RoHS-compliant, AEC-Q101-qualified construction with JESD 201 Class 2 whisker-resistant matte tin plating. "A" is the revision code; "H" specifies the packaging format - 7-inch plastic tape and reel with 1500 units per reel. This suffix directly identifies the environmental compliance, qualification status, and logistics configuration of the EGF1THE3_A/H unit.

Is EGF1THE3_A/H suitable for new designs despite "Not for New Designs" labeling?

Although Vishay labels EGF1THE3_A/H as "Not for New Designs" in its documentation, the part remains actively manufactured and stocked by authorized distributors as of 2024. It is appropriate for sustaining production, legacy system repair, and applications where its specific combination of 1300 V rating, 75 ns trr, and AEC-Q101 qualification meets functional and compliance requirements - always verify current status with Vishay or Aetrix before committing to long-term BOMs. EGF1THE3_A/H continues to ship with full traceability and warranty.

How does the GF1 (DO-214BA) package of EGF1THE3_A/H differ from DO-214AC (SMA)?

The GF1 (DO-214BA) package used by EGF1THE3_A/H has a smaller body profile (0.187" × 0.114") and tighter lead spacing than DO-214AC (SMA), resulting in lower RθJA (50 °C/W vs. 65 °C/W) and better suitability for high-density photoflash PCB layouts. GF1 also features a glass-body core within molded plastic, enhancing thermal stability and surge robustness - a distinction confirmed in Vishay's mechanical drawings and thermal characterization data for EGF1THE3_A/H.

Can EGF1THE3_A/H replace standard FR107 or UF4007 rectifiers?

EGF1THE3_A/H is not a direct replacement for FR107 or UF4007 due to higher VRRM (1300 V vs. 1000 V/1000 V), higher VF (3.0 V vs. ~1.7 V), and stricter qualification (AEC-Q101 vs. commercial grade). While it exceeds their voltage rating, its higher forward drop increases conduction loss. Use EGF1THE3_A/H only where 1300 V margin, ultrafast recovery, or automotive qualification is explicitly required - not as a generic upgrade. System-level validation of thermal and efficiency impact is essential before substituting EGF1THE3_A/H.

What is the significance of EAS = 15 mJ for EGF1THE3_A/H in photoflash applications?

The 15 mJ non-repetitive avalanche energy rating (EAS) of EGF1THE3_A/H allows it to safely absorb inductive energy spikes generated during rapid turn-off in transformer-coupled photoflash chargers - such as those caused by leakage inductance in flyback or resonant topologies. This capability prevents catastrophic failure during repeated flash cycles and is validated per JEDEC test conditions (IAS = 1 A, L = 30 mH), making EGF1THE3_A/H especially robust in high-reliability flash systems where EGF1THE3_A/H operates near its voltage and thermal limits.