MS3122E20-16S Equivalent & Substitute Parts

Part Overview

The MS3122E20-16S is a 16-position circular connector receptacle manufactured by ITT Cannon, LLC, designed for panel mount applications with bayonet lock fastening. This connector features female sockets with crimp termination, gold-plated mating contacts, and an olive drab cadmium-finished aluminum alloy shell. The connector operates across a temperature range of -55°C to 125°C with a current rating of 13A and voltage rating of 1000VAC/1400VDC, making it suitable for aerospace, military, and industrial applications. As an active product with 635 units in stock, equivalent alternatives may be required for supply chain optimization, design flexibility, or specific application requirements where alternative manufacturers' specifications align with system parameters.

Substiute Parts

MS3122E20-16S

ITT Cannon, LLCIn Stock: 666MS3122E20-16S Datasheet

Current PartRFQ

PT02SE-20-16S

Amphenol Industrial OperationsIn Stock: 921PT02SE-20-16S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The PT02SE-20-16S from Amphenol Industrial Operations qualifies as a direct substitute for the MS3122E20-16S based on alignment of critical electrical and mechanical parameters. Substitution eligibility is determined by the following mandatory criteria:

Matching Parameters:

• Connector type: Receptacle with female sockets
• Position count: 16 positions
• Shell size designation: 20-16
• Mounting configuration: Panel mount with flange
• Termination method: Crimp
• Fastening mechanism: Bayonet lock
• Orientation: Normal (N)
• Shell material: Aluminum
• Contact finish: Gold plating
• Current rating: 13A
• Operating temperature range: -55°C ~ 125°C
• Ingress protection: Environment sealed (equivalent to environment resistant)
• Product status: Active

The PT02SE-20-16S maintains functional and physical compatibility with the MS3122E20-16S across all specified electrical and mechanical interfaces, enabling direct substitution in applications requiring these connector parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the MS3122E20-16S and PT02SE-20-16S maintain active product status with current manufacturing support. Selection between these connectors should be based on supply availability, lead time requirements, and inventory positioning. The MS3122E20-16S currently maintains 635 units in stock, while the PT02SE-20-16S has 849 units available. Both connectors are RoHS non-compliant and carry identical ECCN (EAR99) and HTSUS (8536.69.4020) classifications, indicating equivalent regulatory treatment for export and tariff purposes. The PT02SE-20-16S includes REACH Affected status documentation, which may be relevant for applications subject to European Union chemical regulations. Shell finish specifications differ slightly—the MS3122E20-16S uses olive drab cadmium plating, while the PT02SE-20-16S employs olive drab chromate over cadmium—both providing equivalent corrosion resistance for the specified operating environment.

Frequently Asked Questions (FAQ)

Q: Can the PT02SE-20-16S directly replace the MS3122E20-16S in existing designs?

A: Yes. Both connectors share identical electrical ratings (13A, 1000VAC/1400VDC), mechanical configuration (16-position, 20-16 shell size, panel mount flange), termination method (crimp), fastening mechanism (bayonet lock), and operating temperature range (-55°C to 125°C). Physical and functional compatibility is maintained across all specified parameters.

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

A: The MS3122E20-16S features olive drab cadmium plating, while the PT02SE-20-16S uses olive drab chromate over cadmium. Both finishes provide equivalent environmental protection and corrosion resistance for the specified operating conditions. The chromate-over-cadmium finish on the Amphenol connector may offer enhanced durability in certain corrosive environments.

Q: Are there any compliance or certification differences?

A: Both connectors are RoHS non-compliant and carry identical ECCN and HTSUS classifications. The PT02SE-20-16S includes REACH Affected status, which applies to applications subject to European Union chemical substance regulations. The MS3122E20-16S does not list REACH status in the provided specifications.

Q: What is the significance of the shell size designation 20-16?

A: The 20-16 designation indicates a size 20 shell with a 16-position insert. This parameter is critical for mechanical compatibility with mating connectors and panel cutout dimensions. Both connectors maintain this specification, ensuring interchangeability in existing installations.

Q: Can these connectors be used interchangeably in aerospace and military applications?

A: Both connectors are specified for aerospace, industrial, instrumentation, mass transit, and military applications. Interchangeability in these sectors depends on specific system qualification requirements and design documentation. Consult applicable system specifications and qualification records before substitution.

Q: What is the moisture sensitivity level (MSL) for these connectors?

A: The MS3122E20-16S has an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. The PT02SE-20-16S lists MSL as Not Applicable, indicating similar unrestricted handling. Both connectors can be stored and handled without moisture control measures.