AFD56-20-39SN Equivalent & Substitute Parts

Part Overview

The AFD56-20-39SN is a 39-position circular connector plug with female sockets manufactured by TE Connectivity Deutsch Connectors. This connector is designed for free-hanging (in-line) applications and features crimp termination with bayonet lock fastening. The part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain functional compatibility across aviation, automotive, and military applications.

Substiute Parts

AFD56-20-39SN

TE Connectivity Deutsch ConnectorsIn Stock: 863AFD56-20-39SN Datasheet

Current PartRFQ

PV75L20-39SL

ITT Cannon, LLCIn Stock: 804PV75L20-39SL Datasheet

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PV75W20-39S

ITT Cannon, LLCIn Stock: 1252PV75W20-39S Datasheet

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PV76L20-39SL

ITT Cannon, LLCIn Stock: 1189PV76L20-39SL Datasheet

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PV76W20-39SL

ITT Cannon, LLCIn Stock: 1013PV76W20-39SL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AFD56-20-39SN is determined by the following critical parameters:

Primary Compatibility Criteria:

• 39-position configuration
• Shell size 20-39
• Free-hanging (in-line) mounting type
• Bayonet lock fastening
• Crimp contact termination
• Operating temperature range -55°C ~ 200°C
• Environment resistant ingress protection

The substitute parts listed (PV75L20-39SL, PV75W20-39S, PV76L20-39SL, PV76W20-39SL) are all manufactured by ITT Cannon, LLC and share the core mechanical and electrical parameters required for functional equivalence. These parts are classified as plug housings for female sockets with identical position counts and shell sizing. All substitute parts maintain the same operating temperature specification and environmental resistance rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: PV75L20-39SL or PV76L20-39SL

Both PV75L20-39SL and PV76L20-39SL are active products from ITT Cannon, LLC with complete parameter specifications matching the AFD56-20-39SN. These parts satisfy all critical substitution criteria including 39-position configuration, shell size 20-39, free-hanging mounting, bayonet lock fastening, and crimp termination. Both maintain the -55°C ~ 200°C operating temperature range and environment resistant ingress protection.

The primary distinction between these two options is shielding configuration: PV75L20-39SL includes shielding, while PV76L20-39SL is unshielded. Selection between these variants depends on application-specific electromagnetic interference requirements.

Secondary Option: PV76W20-39SL

PV76W20-39SL is an active alternative with identical mechanical and electrical specifications to PV76L20-39SL. The primary difference is shell finish (chromate over cadmium with olive drab housing color versus electroless nickel with silver housing). This variant is suitable for applications where specific corrosion resistance or color coding requirements apply.

Note on PV75W20-39S

PV75W20-39S is listed as an active product with incomplete technical specifications in available documentation. This part should be cross-referenced with manufacturer datasheets before selection to confirm full parameter compatibility.

All substitute parts are RoHS non-compliant and carry MSL rating 1 (Unlimited), matching the original AFD56-20-39SN compliance profile.

Frequently Asked Questions (FAQ)

Q: Can PV75L20-39SL directly replace AFD56-20-39SN in existing assemblies?

A: PV75L20-39SL meets all critical mechanical and electrical parameters for functional equivalence. However, this part is classified as a plug housing for female sockets, whereas the AFD56-20-39SN is specified as a plug with female sockets. Verify that contact compatibility and assembly requirements align with your specific application before implementation.

Q: What is the difference between PV75L20-39SL and PV76L20-39SL?

A: Both parts are mechanically and electrically identical with one exception: PV75L20-39SL includes shielding, while PV76L20-39SL is unshielded. Select based on electromagnetic interference requirements of your application.

Q: Why is PV75W20-39S listed as a substitute if specifications are incomplete?

A: PV75W20-39S is included in the original substitute list provided. However, incomplete technical documentation limits verification of full parameter compatibility. Obtain complete specifications from ITT Cannon, LLC before selecting this part.

Q: Are all substitute parts currently in stock?

A: Yes. PV75L20-39SL (777 pcs), PV75W20-39S (1173 pcs), PV76L20-39SL (1102 pcs), and PV76W20-39SL (908 pcs) are all listed as new original stock.

Q: Do the substitute parts include contacts?

A: No. PV75L20-39SL, PV76L20-39SL, and PV76W20-39SL are plug housings supplied without contacts. Contacts must be sourced separately and crimped according to manufacturer specifications.

Q: What is the significance of the shell finish differences among substitute parts?

A: PV75L20-39SL features electroless nickel finish with silver housing. PV76L20-39SL also features electroless nickel finish with silver housing. PV76W20-39SL features chromate over cadmium finish with olive drab housing. Shell finish selection depends on corrosion resistance requirements and environmental exposure conditions specific to your application.

Q: Are all parts rated for the same operating temperature range?

A: Yes. AFD56-20-39SN and all substitute parts (PV75L20-39SL, PV76L20-39SL, PV76W20-39SL) are rated for -55°C ~ 200°C operation.

Q: What is the contact size specification for substitute parts?

A: PV75L20-39SL, PV76L20-39SL, and PV76W20-39SL accommodate contact sizes 16 (2 positions) and 20 (37 positions).