MS3111E20-24P Equivalent & Substitute Parts

Part Overview

The MS3111E20-24P is a 24-position circular connector receptacle with male pins, manufactured by Amphenol Industrial Operations. This connector is part of the Military MIL-DTL-26482 Series I product line and features solder cup termination with bayonet lock fastening. The part is discontinued at DiGi Electronics, making identification of equivalent substitute components essential for ongoing system maintenance and procurement.

Substiute Parts

MS3111E20-24P

Amphenol Industrial OperationsIn Stock: 1203MS3111E20-24P Datasheet

Current PartRFQ

MSW01E20-24P

Milspecwest, LLCIn Stock: 1169MSW01E20-24P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MS3111E20-24P is determined by the following critical parameters:

• Connector Configuration: Receptacle type with male pins, 24-position arrangement
• Shell Size: Insert size 20-24 for mechanical compatibility
• Fastening Mechanism: Bayonet lock coupling system
• Termination Method: Solder-based connection (solder cup or equivalent solder termination)
• Operating Environment: Temperature range -55°C to 125°C and environment-resistant rating
• Mounting Style: Free hanging in-line configuration

The MSW01E20-24P meets these core substitution criteria as a 24-position circular connector receptacle with male pins, shell size 20-24, bayonet lock fastening, and solder termination. Both connectors operate across the same temperature range and provide environment-resistant performance suitable for military applications.

Parameter Comparison

Engineering Selection Recommendations

The MSW01E20-24P serves as a functional equivalent for the discontinued MS3111E20-24P based on matching connector configuration, shell size, fastening mechanism, and operating temperature specifications. Both connectors are designed for military applications and provide environment-resistant performance.

The MSW01E20-24P is currently in active production status with 1125 pieces available in inventory, providing supply continuity for systems requiring MS3111E20-24P replacements. The substitute part maintains mechanical and electrical compatibility through identical shell size, pin count, and bayonet lock fastening.

Note that the MSW01E20-24P is RoHS non-compliant, whereas the main part's RoHS status is not specified. Additionally, the substitute part's REACH status is listed as vendor undefined compared to the main part's REACH affected designation. These compliance differences should be evaluated against specific application requirements and regulatory obligations.

Frequently Asked Questions (FAQ)

Q: Can MSW01E20-24P directly replace MS3111E20-24P in existing assemblies?

A: Yes, the MSW01E20-24P is mechanically and electrically compatible as a substitute. Both connectors share identical shell size (20-24), 24-position configuration, bayonet lock fastening, and operating temperature range (-55°C to 125°C). The solder termination method is equivalent between both parts.

Q: What are the key compatibility factors for this connector substitution?

A: Compatibility is ensured through matching connector type (receptacle with male pins), shell size, position count, fastening mechanism, and environmental rating. Both parts are designed for free hanging in-line mounting and provide environment-resistant performance.

Q: Are there differences in contact finish between these parts?

A: Yes. The MS3111E20-24P features gold contact finish on mating surfaces, while the MSW01E20-24P specifies cadmium contact finish. This difference may affect corrosion resistance and electrical performance in specific applications.

Q: What is the significance of the shell finish difference?

A: The MS3111E20-24P uses olive drab chromate over cadmium finish, while the MSW01E20-24P uses cadmium finish. Both finishes provide corrosion protection suitable for military and industrial environments, though the olive drab chromate provides additional environmental resistance.

Q: Should compliance status affect the substitution decision?

A: Compliance differences between the parts should be evaluated against application-specific requirements. The MSW01E20-24P is RoHS non-compliant and has undefined REACH status, whereas the main part is REACH affected. Systems subject to RoHS or REACH regulations must verify compliance requirements before substitution.

Q: Is inventory availability a factor in selecting the substitute?

A: The MSW01E20-24P is currently in active production with 1125 pieces available, compared to the discontinued MS3111E20-24P with 1097 pieces remaining in stock. Active production status ensures long-term availability for ongoing procurement needs.