MS3116F12-3P Equivalent & Substitute Parts

Part Overview

The MS3116F12-3P is a 3-position circular connector plug with male pins and solder cup termination, manufactured by Amphenol Industrial Operations. This connector conforms to MIL-DTL-26482 Series I specifications and is designed for aerospace, military, communication systems, and industrial applications requiring bayonet-lock coupling and environmental resistance. The part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing procurement and system maintenance.

Substiute Parts

MS3116F12-3P

Amphenol Industrial OperationsIn Stock: 1380MS3116F12-3P Datasheet

Current PartRFQ

MSW06E12-3P-SR

Milspecwest, LLCIn Stock: 791MSW06E12-3P-SR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MS3116F12-3P is determined by strict equivalence in the following parameters:

• Connector type: Plug with male pins
• Position count: 3 positions
• Shell size designation: 12-3
• Fastening mechanism: Bayonet lock coupling
• Mounting configuration: Free hanging in-line
• Operating temperature range: -55°C ~ 125°C
• Environmental resistance classification
• Termination compatibility: Solder-based connection methods

The MSW06E12-3P-SR qualifies as a substitute based on matching all critical mechanical and electrical interface parameters. Both connectors conform to MIL-DTL-26482 style specifications and maintain identical shell size, position count, and bayonet-lock fastening. Differences in shell finish, contact finish, and specific feature sets do not preclude functional substitution when system requirements permit.

Parameter Comparison

Engineering Selection Recommendations

The MSW06E12-3P-SR is a functional equivalent for MS3116F12-3P applications based on matching mechanical interface specifications and operating parameters. Selection between these parts should be based on:

• Product availability: MSW06E12-3P-SR maintains active production status with 737 units in stock, whereas MS3116F12-3P is discontinued.
• Compliance requirements: Both parts are RoHS non-compliant and carry EAR99 export classification, maintaining equivalent regulatory posture.
• Electrical specifications: MSW06E12-3P-SR provides defined current (13A) and voltage (800V) ratings, whereas MS3116F12-3P specifications are not provided. System designs requiring explicit electrical ratings should reference MSW06E12-3P-SR documentation.
• Shell finish: MS3116F12-3P specifies olive drab chromate over cadmium; MSW06E12-3P-SR specifies cadmium finish. Environmental and corrosion requirements should guide finish selection.
• Contact finish: MS3116F12-3P uses gold mating contacts; MSW06E12-3P-SR uses cadmium. Contact material compatibility with mating components must be verified.

Frequently Asked Questions (FAQ)

Q: Can MSW06E12-3P-SR directly replace MS3116F12-3P in existing assemblies?

A: MSW06E12-3P-SR is mechanically and functionally compatible as a substitute. Both connectors share identical shell size (12-3), position count (3), bayonet-lock fastening, and operating temperature range (-55°C ~ 125°C). Physical fit and mating interface are equivalent. Differences in shell finish and contact finish require evaluation against specific system environmental and electrical requirements.

Q: What are the key differences between these two connectors?

A: Primary differences are shell finish (olive drab chromate over cadmium versus cadmium), contact finish (gold versus cadmium), and documented electrical ratings (MSW06E12-3P-SR specifies 13A/800V). Both maintain MIL-DTL-26482 style compliance and identical mechanical dimensions.

Q: Are there packaging differences between these parts?

A: MS3116F12-3P is supplied in bulk packaging; MSW06E12-3P-SR is supplied in bag packaging. This affects inventory management and handling but does not impact functional performance.

Q: Which part should be selected for new designs?

A: MSW06E12-3P-SR is recommended for new designs due to active production status and documented electrical specifications. MS3116F12-3P is discontinued and should be reserved for legacy system maintenance where exact specification matching is required.

Q: Do both connectors meet the same environmental resistance standards?

A: Both connectors are classified as environment resistant. Specific environmental performance should be verified against application requirements, particularly regarding the differences in shell and contact finishes.