AFD56-8-33PN Equivalent & Substitute Parts

Part Overview

The AFD56-8-33PN is a 3-position circular connector plug with male pins manufactured by TE Connectivity DEUTSCH Connectors. This connector features crimp termination, bayonet lock fastening, and gold-plated mating contacts rated for 7.5A operation across a temperature range of -55°C to 200°C. The part is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain compatibility with existing applications in aviation, automotive, and military environments.

Substiute Parts

AFD56-8-33PN

TE Connectivity DEUTSCH ConnectorsIn Stock: 851AFD56-8-33PN Datasheet

Current PartRFQ

KPSE6E833P-DN-A34

ITT Cannon, LLCIn Stock: 788KPSE6E833P-DN-A34 Datasheet

SimilarRFQ

PV76L8-33PL

ITT Cannon, LLCIn Stock: 926PV76L8-33PL Datasheet

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PV76W8-33PL

ITT Cannon, LLCIn Stock: 818PV76W8-33PL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFD56-8-33PN is determined by strict equivalence across the following critical parameters:

Primary Compatibility Criteria:

• Connector type (Plug, Male Pins)
• Number of positions (3)
• Shell size designation (8-33)
• Termination method (Crimp)
• Fastening mechanism (Bayonet Lock)
• Mounting configuration (Free Hanging In-Line)
• Current rating (7.5A minimum)
• Operating temperature range (minimum -55°C to 200°C)

Secondary Compatibility Criteria:

• Contact finish (Gold plating on mating surfaces)
• Shell material (Aluminum or Aluminum Alloy)
• Ingress protection classification (Environment Resistant or equivalent)

The substitute parts identified—KPSE6E833P-DN-A34, PV76L8-33PL, and PV76W8-33PL—satisfy all primary compatibility criteria. Variations in secondary parameters such as shell finish color, RoHS compliance status, and specific ingress protection ratings reflect design alternatives within the same connector family rather than functional incompatibilities.

Parameter Comparison

Engineering Selection Recommendations

KPSE6E833P-DN-A34 (ITT Cannon, LLC)

This substitute provides the most direct functional equivalence to the AFD56-8-33PN. Both parts are complete connector plugs with male pins, identical shell size designation, and matching current ratings. The KPSE6E833P-DN-A34 is currently active in production and RoHS compliant. The operating temperature range is reduced to -55°C to 125°C, which represents a limitation for applications requiring sustained operation above 125°C. The enhanced ingress protection rating (IP67) provides superior environmental sealing compared to the original part. This substitute is suitable for applications where the lower temperature ceiling does not conflict with operational requirements.

PV76L8-33PL and PV76W8-33PL (ITT Cannon, LLC)

These substitutes are plug housings designed for male pins rather than complete connector plugs. Both maintain the 8-33 shell size, bayonet lock fastening, and free-hanging in-line mounting configuration. The operating temperature range extends to 200°C, matching the original part specification. These housings require separate acquisition and installation of crimp contacts, introducing additional assembly steps compared to the complete AFD56-8-33PN assembly. The PV76L8-33PL features electroless nickel finish, while the PV76W8-33PL features chromate over cadmium finish. Both are currently active in production. These options are appropriate for applications where connector housing replacement is required and contacts can be sourced separately.

Selection between these substitutes depends on application-specific requirements: temperature operating range, environmental sealing requirements, RoHS compliance mandates, and assembly methodology.

Frequently Asked Questions (FAQ)

Q: Can the KPSE6E833P-DN-A34 be used as a direct replacement for the AFD56-8-33PN in all applications?

A: The KPSE6E833P-DN-A34 provides functional equivalence for applications operating within the -55°C to 125°C temperature range. Applications requiring sustained operation above 125°C must use PV76L8-33PL or PV76W8-33PL housings. Both parts maintain identical shell size, position count, termination method, and current rating.

Q: What is the difference between the PV76L8-33PL and PV76W8-33PL?

A: Both parts are plug housings with identical electrical and mechanical specifications. The primary differences are shell finish and color: PV76L8-33PL features electroless nickel finish with silver color, while PV76W8-33PL features chromate over cadmium finish with olive drab color. Neither part includes contacts; contacts must be sourced and installed separately.

Q: Why are the PV76 series parts listed as plug housings rather than complete plugs?

A: The PV76 series are connector housings designed to accept crimp contacts. They do not include pre-installed contacts. This configuration allows flexibility in contact selection and assembly but requires additional procurement and assembly steps compared to complete connector assemblies.

Q: Are all substitute parts compatible with existing mating receptacles designed for the AFD56-8-33PN?

A: Yes. All substitute parts maintain the 8-33 shell size designation and bayonet lock fastening mechanism, ensuring mechanical and electrical compatibility with receptacles designed for the AFD56-8-33PN.

Q: What is the significance of the RoHS compliance difference between the AFD56-8-33PN and KPSE6E833P-DN-A34?

A: The AFD56-8-33PN is RoHS non-compliant, while the KPSE6E833P-DN-A34 is RoHS compliant. RoHS compliance indicates the absence of restricted substances (lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers). Applications subject to RoHS regulations must use the KPSE6E833P-DN-A34 or equivalent compliant alternatives.

Q: Can the AFD56-8-33PN contacts be used with the PV76 series housings?

A: Contact compatibility depends on contact size and crimp specifications. The PV76 series are specified for contact size 20. Verification of contact specifications for the AFD56-8-33PN is required before cross-assembly.

Q: What is the maximum current rating for the PV76 series housings?

A: The PV76 series specifications provided do not include current rating data. Current rating is determined by the contacts installed in these housings. Contact specifications must be reviewed to establish system current capacity.