Switchcraft E3F Circular Connector - Equivalent & Substitute Parts

Part Overview

The Switchcraft E3F is a 3-position circular connector plug with female sockets designed for audio and instrumentation applications. This connector features a XLR shell size, panel mount configuration with flange, and solder termination. The E3F is classified as obsolete product status, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

E3F

Switchcraft Inc.In Stock: 945E3F Datasheet

Current PartRFQ

E3FSC

Switchcraft Inc.In Stock: 1272E3FSC Datasheet

SimilarRFQ

AC3FDZ

Amphenol AudioIn Stock: 1356AC3FDZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the E3F is determined by the following critical parameters:

• Connector Type & Position Count: Plug configuration with female sockets, 3-position requirement
• Shell Size: XLR standard
• Mounting Configuration: Panel mount with flange
• Termination Method: Solder or solder cup termination
• Fastening & Orientation: Latch lock with keyed orientation
• Electrical & Material Specifications: Shielded design, 15A current rating, copper alloy contacts with silver mating finish, zinc die cast nickel-plated shell
• Environmental Compliance: ROHS3 compliant, REACH unaffected

The E3F has two identified substitutes: E3FSC (Switchcraft Inc., active status) and AC3FDZ (Amphenol Audio, active status). Both maintain the core mechanical and electrical parameters required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

E3FSC (Switchcraft Inc.) is the primary substitute for the obsolete E3F. Both parts are manufactured by Switchcraft Inc. and share identical mechanical, electrical, and environmental specifications. The E3FSC maintains the same operating temperature range (-55°C ~ 85°C) and current rating (15A). The primary difference is termination method: E3FSC uses solder cup termination versus the E3F's solder termination. Both are ROHS3 compliant with equivalent compliance certifications. The E3FSC is currently in active production status with higher inventory availability (1214 pcs vs. 907 pcs for the obsolete E3F).

AC3FDZ (Amphenol Audio) is an alternative substitute from a different manufacturer. This part maintains all critical mechanical parameters and shares the same XLR 3-position configuration, panel mount flange, and shielded design. AC3FDZ is ROHS3 compliant and REACH unaffected. The operating temperature range for AC3FDZ is -25°C ~ 75°C, which is narrower than the E3F specification. AC3FDZ includes IP40 ingress protection rating, not specified in the E3F. Current rating is not specified for AC3FDZ. This part is in active production with 1339 pcs inventory availability.

For applications requiring the full -55°C ~ 85°C operating temperature range, E3FSC is the recommended substitute. For applications within the -25°C ~ 75°C range with enhanced ingress protection requirements, AC3FDZ is suitable.

Frequently Asked Questions (FAQ)

Q: Can E3FSC directly replace E3F in existing designs? A: E3FSC is mechanically and electrically compatible with E3F. The primary difference is termination method: E3FSC uses solder cup termination while E3F uses solder termination. Both methods provide equivalent electrical performance for the specified 15A current rating and audio/instrumentation applications. PCB layout modifications may be required to accommodate solder cup versus solder termination geometry.

Q: What is the difference between solder and solder cup termination? A: Solder termination requires direct solder connection to PCB pads. Solder cup termination features a cup-shaped contact that accepts wire leads, which are then soldered. Both methods achieve the same electrical connection; the choice depends on assembly process and PCB design.

Q: Is AC3FDZ suitable for all E3F applications? A: AC3FDZ is suitable for applications operating within -25°C ~ 75°C. If your application requires the full -55°C ~ 85°C operating temperature range specified for E3F, AC3FDZ is not appropriate. AC3FDZ provides IP40 ingress protection, which may be beneficial for harsh environments.

Q: Are all three parts ROHS3 compliant? A: Yes. E3F, E3FSC, and AC3FDZ are all ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the current rating difference between parts? A: E3F and E3FSC both specify 15A current rating. AC3FDZ does not specify a current rating in the provided data. For applications requiring confirmed 15A rating, E3FSC is the recommended choice.

Q: Can I use AC3FDZ if my application requires 15A current rating? A: AC3FDZ current rating is not specified. For applications with defined 15A current requirements, E3FSC provides explicit specification matching the E3F.