MS3111F8-4S Equivalent & Substitute Parts

Part Overview

The MS3111F8-4S is a 4-position circular connector receptacle manufactured by Amphenol Industrial Operations, designed for military and aerospace applications. This connector features female sockets with solder cup termination, bayonet lock fastening, and operates across the temperature range of -55°C to 125°C. The part is discontinued at DiGi Electronics, making identification of equivalent substitutes necessary for ongoing system maintenance and procurement.

Substiute Parts

MS3111F8-4S

Amphenol Industrial OperationsIn Stock: 1117MS3111F8-4S Datasheet

Current PartRFQ

MSW01E8-4S-SR

Milspecwest, LLCIn Stock: 815MSW01E8-4S-SR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MS3111F8-4S is determined by the following critical parameters:

• Connector Configuration: Receptacle type with female sockets and 4-position capacity
• Shell Size: 8-4 insert designation for mechanical compatibility
• Fastening Mechanism: Bayonet lock for mating interface consistency
• Mounting Style: Free hanging in-line configuration
• Termination Method: Solder-based connection for PCB or cable integration
• Environmental Rating: Environment resistant classification
• Temperature Range: -55°C to 125°C operational limits
• Series Compliance: MIL-DTL-26482 military standard alignment

The MSW01E8-4S-SR qualifies as a substitute based on matching these core parameters across connector type, position count, shell size, fastening type, mounting configuration, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The MSW01E8-4S-SR serves as a functional equivalent to the MS3111F8-4S based on alignment of core mechanical and electrical parameters. The substitute maintains identical shell size, position count, fastening mechanism, and operating temperature specifications. Both connectors are MIL-DTL-26482 compliant and environment resistant.

The MSW01E8-4S-SR is currently in active production status, addressing the discontinuation of the original MS3111F8-4S. Both parts carry RoHS non-compliant designation, consistent with military connector standards. The substitute provides specified current and voltage ratings (7.5A, 800V) not documented for the main part, offering additional electrical performance data for system design verification.

Frequently Asked Questions (FAQ)

Q: Can the MSW01E8-4S-SR directly replace the MS3111F8-4S in existing assemblies?

A: Yes, the MSW01E8-4S-SR qualifies as a direct substitute based on matching shell size (8-4), position count (4), fastening type (bayonet lock), mounting configuration (free hanging in-line), and operating temperature range (-55°C to 125°C). Both connectors conform to MIL-DTL-26482 military standards.

Q: What are the differences in contact finish between these connectors?

A: The MS3111F8-4S specifies gold contact finish for mating surfaces, while the MSW01E8-4S-SR uses cadmium contact finish. This difference may affect corrosion resistance and electrical performance in specific environmental conditions.

Q: Are there packaging differences between the main part and substitute?

A: The MS3111F8-4S packaging is not specified in available documentation. The MSW01E8-4S-SR is supplied in bag packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: Do both connectors meet the same RoHS compliance requirements?

A: Both the MS3111F8-4S and MSW01E8-4S-SR are RoHS non-compliant, consistent with military connector specifications and MIL-DTL-26482 standards.

Q: What electrical specifications should be considered for system design?

A: The MSW01E8-4S-SR provides documented electrical ratings of 7.5A current capacity and 800V voltage rating. The MS3111F8-4S does not specify these parameters. Use the substitute's ratings for design verification if the original part specifications are unavailable.