AFD57-12-3SN Equivalent & Substitute Parts

Part Overview

The AFD57-12-3SN is a 3-position circular connector plug with female sockets manufactured by TE Connectivity Deutsch Connectors. This connector features crimp termination, bayonet lock fastening, and operates across a temperature range of -55°C to 200°C. The part is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing applications in aviation, automotive, and military environments.

Substiute Parts

AFD57-12-3SN

TE Connectivity Deutsch ConnectorsIn Stock: 1224AFD57-12-3SN Datasheet

Current PartRFQ

KPSE6E123S-DN-A34

ITT Cannon, LLCIn Stock: 822KPSE6E123S-DN-A34 Datasheet

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PT06SE-12-3S

Amphenol Industrial OperationsIn Stock: 1255PT06SE-12-3S Datasheet

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PV75L12-3SL

ITT Cannon, LLCIn Stock: 858PV75L12-3SL Datasheet

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PV76L12-3SL

ITT Cannon, LLCIn Stock: 1054PV76L12-3SL Datasheet

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PV76W12-3SL

ITT Cannon, LLCIn Stock: 936PV76W12-3SL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFD57-12-3SN is determined by strict alignment of the following critical parameters:

Primary Compatibility Criteria:

• Connector type (Plug, Female Sockets)
• Number of positions (3)
• Shell size designation (12-3)
• Termination method (Crimp)
• Fastening type (Bayonet Lock)
• Mounting configuration (Free Hanging In-Line)
• Current rating (13A)

Secondary Considerations:

• Operating temperature range
• Shell material and finish
• Contact finish (Gold mating surface)
• Shielding configuration
• Ingress protection rating

The substitute parts are grouped into two categories:

Category A - Direct Connector Substitutes: Parts that function as complete connector assemblies with integrated contacts and housing. These include KPSE6E123S-DN-A34 and PT06SE-12-3S.

Category B - Housing-Only Substitutes: Parts that provide connector housing and coupling mechanisms without integrated contacts. These include PV75L12-3SL, PV76L12-3SL, and PV76W12-3SL. These components require separate contact procurement and assembly.

Parameter Comparison

Engineering Selection Recommendations

For Direct Connector Replacement (Complete Assembly):

KPSE6E123S-DN-A34 (ITT Cannon, LLC) is the preferred direct substitute when RoHS compliance is required. This part maintains all critical electrical and mechanical parameters including 3-position configuration, 12-3 shell size, crimp termination, bayonet lock fastening, and 13A current rating. The operating temperature range is reduced to -55°C to 125°C, which is acceptable for most applications not requiring the full 200°C capability of the original part. This connector is RoHS compliant and currently in active production status with 780 units in stock. The KPSE6E123S-DN-A34 features IP67 ingress protection and unshielded configuration, differing from the shielded design of the AFD57-12-3SN.

PT06SE-12-3S (Amphenol Industrial Operations) serves as an alternative direct substitute when RoHS compliance is not a requirement. This MIL-DTL-26482 Series I connector maintains compatibility across all critical parameters with 13A current rating and -55°C to 125°C operating range. The PT06SE-12-3S features an olive drab chromate over cadmium finish and neoprene insert material. This part is currently in active production with 1214 units in stock and is suitable for aerospace, industrial, instrumentation, mass transit, and military applications.

For Housing-Only Applications (Requires Separate Contacts):

PV75L12-3SL (ITT Cannon, LLC) provides a shielded connector housing assembly compatible with the AFD57-12-3SN shielding requirement. This housing maintains the full -55°C to 200°C operating temperature range and features electroless nickel finish. The part is currently active with 808 units in stock. Contact procurement and assembly are required separately.

PV76L12-3SL (ITT Cannon, LLC) offers an unshielded housing alternative with identical temperature range and electroless nickel finish. This part is currently active with 1041 units in stock.

PV76W12-3SL (ITT Cannon, LLC) provides an unshielded housing with chromate over cadmium finish and olive drab color. This part maintains the full operating temperature range and is currently active with 909 units in stock.

Frequently Asked Questions (FAQ)

Q: Can KPSE6E123S-DN-A34 be used as a direct replacement for AFD57-12-3SN in all applications?

A: KPSE6E123S-DN-A34 is compatible for applications operating within -55°C to 125°C. Applications requiring operation above 125°C up to 200°C require evaluation of thermal requirements. The KPSE6E123S-DN-A34 is unshielded, whereas the AFD57-12-3SN is shielded; applications with electromagnetic interference sensitivity require assessment of shielding necessity.

Q: What is the difference between the direct connector substitutes and housing-only substitutes?

A: Direct connector substitutes (KPSE6E123S-DN-A34 and PT06SE-12-3S) are complete assemblies with integrated female socket contacts and are ready for immediate installation. Housing-only substitutes (PV75L12-3SL, PV76L12-3SL, PV76W12-3SL) provide the connector shell and coupling mechanism only; contacts must be procured and crimped separately.

Q: Does the shielding difference between AFD57-12-3SN and KPSE6E123S-DN-A34 affect compatibility?

A: The AFD57-12-3SN is shielded while KPSE6E123S-DN-A34 is unshielded. Applications requiring electromagnetic shielding must use PV75L12-3SL (shielded housing) or verify that unshielded operation is acceptable for the specific application environment.

Q: Are all substitute parts currently available?

A: All substitute parts listed are in active production status. KPSE6E123S-DN-A34 has 780 units in stock, PT06SE-12-3S has 1214 units in stock, PV75L12-3SL has 808 units in stock, PV76L12-3SL has 1041 units in stock, and PV76W12-3SL has 909 units in stock.

Q: What is the impact of RoHS compliance on part selection?

A: KPSE6E123S-DN-A34 is RoHS compliant. AFD57-12-3SN, PT06SE-12-3S, and all PV-series housing parts are RoHS non-compliant. Applications subject to RoHS regulations must use KPSE6E123S-DN-A34 or equivalent compliant alternatives.

Q: Can PT06SE-12-3S be used in applications requiring the full -55°C to 200°C temperature range?

A: PT06SE-12-3S operates only to 125°C maximum. Applications requiring operation above 125°C must use AFD57-12-3SN (if available through alternative sources) or PV-series housing components with separately procured contacts rated for the full temperature range.

Q: What contact size is used in the PV-series housing substitutes?

A: PV75L12-3SL, PV76L12-3SL, and PV76W12-3SL all use contact size 16 for crimp termination. Contacts must be specified and procured separately to match this size designation.