MS3116F22-55S Equivalent & Substitute Parts

Part Overview

The MS3116F22-55S is a 55-position circular connector plug with female sockets manufactured by Amphenol Industrial Operations. This connector conforms to MIL-DTL-26482 Series I specifications and features solder cup termination with bayonet lock fastening. The part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing procurement and system maintenance in aerospace, military, and industrial applications.

Substiute Parts

MS3116F22-55S

Amphenol Industrial OperationsIn Stock: 1011MS3116F22-55S Datasheet

Current PartRFQ

MSW06E22-55S-SR

Milspecwest, LLCIn Stock: 948MSW06E22-55S-SR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The MSW06E22-55S-SR qualifies as a functional equivalent based on the following critical parameters:

• Connector Configuration: Both parts are 55-position plugs with female sockets
• Shell Size: Identical 22-55 shell size and insert designation
• Fastening Mechanism: Both use bayonet lock fastening
• Mounting Style: Both are free hanging (in-line) connectors
• Shell Material: Both feature aluminum construction
• Temperature Rating: Both operate across -55°C to 125°C
• Environmental Resistance: Both provide environment-resistant ingress protection
• Series Compliance: MSW06E22-55S-SR conforms to 26482 Style Connectors, maintaining MIL-DTL-26482 compatibility

The primary difference lies in termination method: the MS3116F22-55S uses solder cup termination, while the MSW06E22-55S-SR uses solder termination with strain relief. Both termination methods are compatible with the same connector shell and pin configuration.

Parameter Comparison

Engineering Selection Recommendations

The MSW06E22-55S-SR is an active substitute for the discontinued MS3116F22-55S. Selection should be based on the following factors:

Product Availability: The MS3116F22-55S is discontinued at DiGi Electronics. The MSW06E22-55S-SR maintains active inventory status with 887 pieces in stock, ensuring procurement continuity.

Compliance Alignment: Both parts are RoHS non-compliant and carry EAR99 ECCN classification, maintaining identical regulatory posture for military and aerospace applications.

Contact Finish Consideration: The MS3116F22-55S features gold mating contact finish, while the MSW06E22-55S-SR uses cadmium finish. This difference affects contact resistance and corrosion characteristics in specific environmental conditions.

Shell Finish Difference: The MS3116F22-55S specifies olive drab chromate over cadmium finish, while the MSW06E22-55S-SR uses cadmium finish. Both provide corrosion protection suitable for military applications.

Termination Method: The MS3116F22-55S uses solder cup termination; the MSW06E22-55S-SR uses solder termination with strain relief. Both methods accommodate the same connector shell and pin configuration.

Electrical Ratings: The MSW06E22-55S-SR provides specified current (7.5A) and voltage (800V) ratings, whereas the MS3116F22-55S does not specify these values in available documentation.

Frequently Asked Questions (FAQ)

Q: Can the MSW06E22-55S-SR directly replace the MS3116F22-55S in existing assemblies?

A: Yes, provided the application does not require the specific contact finish (gold) or shell finish (olive drab chromate) of the original part. Both connectors share identical shell size, position count, fastening mechanism, and mounting configuration. Verify that the solder termination method with strain relief is compatible with your cable assembly process.

Q: What is the difference between solder cup and solder termination?

A: Solder cup termination features a cup-shaped contact designed for wire insertion and solder flow. Solder termination with strain relief uses a different contact geometry with integrated strain relief features. Both methods create permanent solder joints; the choice depends on cable assembly equipment and process requirements.

Q: Are the contact finishes interchangeable?

A: Contact finish affects electrical performance and environmental resistance. Gold finish (MS3116F22-55S) provides superior corrosion resistance and lower contact resistance. Cadmium finish (MSW06E22-55S-SR) is suitable for military applications but may exhibit different performance in high-humidity or corrosive environments. Evaluate application requirements before substitution.

Q: Does the shell finish difference affect compatibility?

A: Shell finish affects corrosion resistance and appearance but does not impact electrical or mechanical compatibility. Olive drab chromate over cadmium (MS3116F22-55S) and cadmium (MSW06E22-55S-SR) both provide military-grade protection. Select based on environmental exposure and system specifications.

Q: What is the significance of the MSL rating difference?

A: The MS3116F22-55S carries MSL 1 (Unlimited), indicating no moisture sensitivity. The MSW06E22-55S-SR lists MSL as Not Applicable, typical for connectors without semiconductor components. This difference does not affect substitution suitability for connector applications.

Q: Are both parts suitable for aerospace applications?

A: The MS3116F22-55S explicitly lists aerospace applications. The MSW06E22-55S-SR lists military applications. Verify that the substitute meets specific aerospace qualification requirements for your program before implementation.