MS3111F16-8P Equivalent & Substitute Parts

Part Overview

The MS3111F16-8P is an 8-position circular connector receptacle manufactured by Amphenol Industrial Operations, conforming to MIL-DTL-26482 Series I specifications. This connector features male pins with solder cup termination, bayonet lock fastening, and is designed for aerospace, military, communication systems, and industrial applications. The part is currently active in production with 1,035 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained, enabling procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Connector Type	Receptacle, Male Pins
Number of Positions	8
Shell Size - Insert	16-8
Fastening Type	Bayonet Lock
Termination	Solder Cup
Current Rating	13A
Voltage Rating	1kVAC
Operating Temperature Range	-55°C to 125°C
Shell Material	Aluminum Alloy
Mounting Type	Free Hanging (In-Line)

Substitute Part Grouping Explanation

Substitution eligibility for the MS3111F16-8P is determined by strict equivalence in the following parameters:

Connector type and pin configuration (Receptacle, Male Pins, 8 positions)
Shell size designation (16-8)
Fastening mechanism (Bayonet Lock)
Electrical ratings (Current: 13A minimum; Voltage: 800V minimum)
Operating temperature range (-55°C to 125°C)
Mounting configuration (Free Hanging, In-Line)
MIL-DTL-26482 series compliance

The substitute part MSW01E16-8P-SR meets these core criteria. Variations in shell finish, contact finish materials, and termination method (solder vs. solder cup) are permissible when the mechanical interface and electrical performance remain equivalent.

Parameter Comparison

Parameter	MS3111F16-8P (Amphenol)	MSW01E16-8P-SR (Milspecwest)	Compatibility
Connector Type	Receptacle, Male Pins	Receptacle, Male Pins	Equivalent
Number of Positions	8	8	Equivalent
Shell Size - Insert	16-8	16-8	Equivalent
Fastening Type	Bayonet Lock	Bayonet Lock	Equivalent
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Equivalent
Current Rating (Amps)	13A	13A	Equivalent
Voltage Rating	1kVAC	800V	Compatible (MSW01E16-8P-SR rated lower)
Operating Temperature	-55°C to 125°C	-55°C to 125°C	Equivalent
Shell Material	Aluminum Alloy	Aluminum	Equivalent
Termination	Solder Cup	Solder	Compatible (both solder-based)
Ingress Protection	Environment Resistant	Environment Resistant	Equivalent
Series Compliance	MIL-DTL-26482 Series I, PT	26482 Style Connectors	Compatible

Engineering Selection Recommendations

Selection between MS3111F16-8P and MSW01E16-8P-SR should be based on the following criteria:

MS3111F16-8P (Amphenol Industrial Operations): Select this part when 1kVAC voltage rating is required. The part is active in production with established supply (1,035 units in stock). Gold contact finish provides enhanced corrosion resistance. Olive drab chromate over cadmium shell finish meets military environmental specifications. Suitable for aerospace and high-reliability military applications.

MSW01E16-8P-SR (Milspecwest, LLC): Select this part when 800V voltage rating is sufficient for the application. Includes integrated strain relief feature. Cadmium shell finish and cadmium contact finish provide cost optimization. Inventory availability is 774 units. Note: RoHS non-compliant status may restrict use in certain regulated markets.

Both parts maintain equivalent mechanical interfaces, fastening mechanisms, and operating temperature ranges, ensuring interchangeability at the connector level when electrical requirements are satisfied.

Frequently Asked Questions (FAQ)

Q: Can MSW01E16-8P-SR be used as a direct replacement for MS3111F16-8P?

A: MSW01E16-8P-SR is mechanically and functionally compatible with MS3111F16-8P for applications requiring 800V or less. The 8-position configuration, shell size (16-8), bayonet lock fastening, and operating temperature range (-55°C to 125°C) are identical. However, if your application requires the full 1kVAC voltage rating of the MS3111F16-8P, the substitute part is not suitable.

Q: What are the differences in termination between these parts?

A: MS3111F16-8P features solder cup termination, while MSW01E16-8P-SR uses standard solder termination. Both are solder-based connection methods compatible with standard PCB assembly processes. Solder cup design in the main part provides a recessed contact interface, while the substitute offers a more compact profile with integrated strain relief.

Q: Are there compliance or certification differences?

A: MS3111F16-8P is RoHS status not specified in provided data. MSW01E16-8P-SR is explicitly RoHS non-compliant. Both parts carry ECCN EAR99 classification. If RoHS compliance is required for your application, verify MS3111F16-8P compliance status with the manufacturer before substitution.

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

A: MS3111F16-8P uses olive drab chromate over cadmium finish, meeting military environmental specifications for corrosion resistance in harsh conditions. MSW01E16-8P-SR uses cadmium finish without chromate plating. For aerospace and outdoor military applications, the chromate layer provides superior environmental protection. For indoor industrial applications, both finishes are functionally equivalent.

Q: Can these connectors be used interchangeably in existing assemblies?

A: Yes, provided the application voltage requirement does not exceed 800V. The identical shell size (16-8), bayonet lock mechanism, and 8-position male pin configuration ensure mechanical and electrical interchangeability. Solder termination compatibility allows integration into existing PCB designs without modification.

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