AFD56-18-8SN Equivalent & Substitute Parts

Part Overview

The AFD56-18-8SN is an 8-position circular connector plug with female sockets manufactured by TE Connectivity Deutsch Connectors. This connector is designed for crimp termination and features a bayonet lock fastening mechanism suitable for free-hanging in-line applications. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines that maintain compatibility with the original electrical and mechanical specifications.

Substiute Parts

AFD56-18-8SN

TE Connectivity Deutsch ConnectorsIn Stock: 782AFD56-18-8SN Datasheet

Current PartRFQ

PV75L18-8SL

ITT Cannon, LLCIn Stock: 753PV75L18-8SL Datasheet

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PV75W18-8SL

ITT Cannon, LLCIn Stock: 993PV75W18-8SL Datasheet

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PV76L18-8SL

ITT Cannon, LLCIn Stock: 957PV76L18-8SL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFD56-18-8SN is based on the following critical parameters that must remain constant across all equivalent parts:

Mandatory Matching Parameters:

• Number of Positions: 8
• Shell Size - Insert: 18-8
• Mounting Type: Free Hanging (In-Line)
• Termination: Crimp
• Fastening Type: Bayonet Lock
• Orientation: N (Normal)
• Operating Temperature Range: -55°C ~ 200°C
• Ingress Protection: Environment Resistant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts identified (PV75L18-8SL, PV75W18-8SL, PV76L18-8SL) are plug housing components manufactured by ITT Cannon, LLC from the active PV series. These parts maintain all mandatory electrical and mechanical parameters. The primary differences between substitutes relate to shell finish (Electroless Nickel versus Chromate over Cadmium) and shielding configuration (Shielded versus Unshielded), which are application-dependent selections rather than compatibility barriers.

Parameter Comparison

Engineering Selection Recommendations

PV75L18-8SL is suitable for applications requiring shielded configurations with electroless nickel finish. This part maintains active product status and is available in inventory (674 pcs). The electroless nickel finish provides corrosion resistance equivalent to the original nickel finish specification.

PV75W18-8SL is suitable for military and aerospace applications where chromate over cadmium finish is specified. This part is active and maintains the highest inventory availability (943 pcs). The olive drab housing color indicates military specification compliance. This option is appropriate when original finish specifications require chromate over cadmium plating.

PV76L18-8SL is suitable for applications where unshielded configurations are acceptable. This part features electroless nickel finish and is active with 883 pcs in inventory. Selection of this part should be based on electromagnetic interference requirements of the specific application.

All three substitute parts are RoHS non-compliant, which differs from the original AFD56-18-8SN ROHS3 compliance status. Applications subject to RoHS requirements must account for this compliance difference.

Frequently Asked Questions (FAQ)

Q: Can PV75L18-8SL, PV75W18-8SL, and PV76L18-8SL be used interchangeably with AFD56-18-8SN?

A: These parts share identical electrical and mechanical specifications for position count, shell size, mounting type, termination method, and fastening mechanism. Interchangeability depends on application-specific requirements for shielding and shell finish. The shielded variants (PV75L18-8SL and PV75W18-8SL) are not interchangeable with unshielded applications, and vice versa.

Q: What is the difference between the three substitute parts?

A: PV75L18-8SL and PV76L18-8SL both feature electroless nickel finish with silver housing color. PV75L18-8SL includes shielding; PV76L18-8SL is unshielded. PV75W18-8SL features chromate over cadmium finish with olive drab housing color and includes shielding. Selection depends on electromagnetic interference requirements and finish specifications for the application.

Q: Are the substitute parts contacts included?

A: No. All three substitute parts are plug housings supplied without contacts. Contacts must be procured separately and crimped according to connector specifications.

Q: What is the significance of the RoHS compliance difference?

A: The original AFD56-18-8SN is ROHS3 compliant, while all substitute parts are RoHS non-compliant. Applications subject to RoHS directives or customer specifications requiring RoHS compliance cannot use these substitutes without design review and approval.

Q: How do shell finish options affect connector performance?

A: Electroless nickel finish (PV75L18-8SL, PV76L18-8SL) provides corrosion resistance suitable for general industrial and aerospace applications. Chromate over cadmium finish (PV75W18-8SL) is specified for military applications and provides enhanced corrosion protection in harsh environments. Selection should align with application environmental requirements and regulatory compliance.

Q: What does "Contacts Not Included" mean for the substitute parts?

A: The substitute parts are connector housings only. The female socket contacts must be sourced separately and installed through the crimp termination process. The original AFD56-18-8SN includes female sockets as an integrated assembly.