TE Connectivity AMP Connectors 3-1437508-9 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-1437508-9 is an 8-position transistor socket for TO-5 packages with gold-plated mating contacts and through-hole solder termination. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design and procurement requirements. The socket features a closed frame design with beryllium copper mating contacts and brass post contacts, suitable for applications requiring reliable transistor interconnection across the operating temperature range of -55°C to 125°C.

Substiute Parts

3-1437508-9

TE Connectivity AMP ConnectorsIn Stock: 10403-1437508-9 Datasheet

Current PartRFQ

917-43-108-41-005000

Mill-Max Manufacturing Corp.In Stock: 1111917-43-108-41-005000 Datasheet

SimilarRFQ

917-43-208-41-005000

Mill-Max Manufacturing Corp.In Stock: 1028917-43-208-41-005000 Datasheet

SimilarRFQ

917-93-108-41-005000

Mill-Max Manufacturing Corp.In Stock: 1217917-93-108-41-005000 Datasheet

SimilarRFQ

917-93-208-41-005000

Mill-Max Manufacturing Corp.In Stock: 1028917-93-208-41-005000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3-1437508-9 is determined by the following critical parameters:

Primary Substitution Criteria:

• Socket type and package compatibility (TO-5 transistor socket)
• Number of positions (8 round positions)
• Contact finish on mating surface (gold plating)
• Contact material on mating surface (beryllium copper)
• Mounting configuration (through-hole solder termination)
• Operating temperature range (-55°C to 125°C)
• Closed frame design

Secondary Compatibility Factors:

• Housing material composition
• Post contact material (brass or brass alloy)
• Post contact finish (gold, tin, or tin-lead)
• Termination post length
• Current rating capability
• Moisture sensitivity level

The substitute parts are grouped into two categories based on package type compatibility:

Category A - TO-5 Socket Equivalents: Parts 917-43-108-41-005000 and 917-93-108-41-005000 are direct functional equivalents for TO-5 transistor socket applications. Both maintain the 8-position round configuration, gold mating contact finish, beryllium copper mating contact material, and through-hole solder termination required for direct substitution.

Category B - TO-100 Socket Variants: Parts 917-43-208-41-005000 and 917-93-208-41-005000 are TO-100 package sockets. These parts share identical electrical and mechanical characteristics with Category A parts but accommodate TO-100 package transistors rather than TO-5 packages. Selection between TO-5 and TO-100 variants depends on the specific transistor package used in the application.

Parameter Comparison

Engineering Selection Recommendations

For TO-5 Package Applications:

Parts 917-43-108-41-005000 and 917-93-108-41-005000 are functionally equivalent to the obsolete 3-1437508-9 for TO-5 transistor socket requirements. Both Mill-Max parts are active products with ROHS3 compliance and REACH unaffected status, providing regulatory compliance advantages over the obsolete TE Connectivity part.

The primary distinction between these two TO-5 options is the post contact finish: 917-43-108-41-005000 features tin plating on posts, while 917-93-108-41-005000 features tin-lead plating. Selection between these variants depends on soldering process compatibility and post-plating requirements for the specific application.

For TO-100 Package Applications:

Parts 917-43-208-41-005000 and 917-93-208-41-005000 provide equivalent functionality for TO-100 transistor socket requirements. These parts maintain identical electrical and mechanical specifications to their TO-5 counterparts but accommodate the larger TO-100 package footprint. Post contact finish selection follows the same criteria as the TO-5 variants.

Regulatory and Compliance Considerations:

All Mill-Max substitute parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The obsolete 3-1437508-9 carries undefined REACH status and not applicable RoHS status, making the active substitute parts preferable for new designs and ongoing procurement.

Housing Material Transition:

The substitute parts utilize polycyclohexylenedimethylene terephthalate (PCT) polyester housing material in place of the original PTFE material. Both materials provide suitable electrical insulation and thermal stability across the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can 917-43-108-41-005000 or 917-93-108-41-005000 directly replace the 3-1437508-9 in existing designs?

A: Yes, for applications using TO-5 transistor packages. Both Mill-Max parts maintain the same 8-position round socket configuration, gold mating contact finish, beryllium copper mating contact material, and through-hole solder termination. The primary differences are housing material composition and post contact finish, which do not affect functional compatibility with TO-5 transistors.

Q: What is the difference between the 917-43 and 917-93 series?

A: The primary difference is post contact finish. The 917-43 series features tin plating on the solder posts, while the 917-93 series features tin-lead plating. Both series maintain identical mating contact specifications and operating characteristics. Selection depends on soldering process compatibility and post-plating requirements.

Q: When should I use the TO-100 variants (917-43-208-41-005000 or 917-93-208-41-005000)?

A: Use TO-100 variants when the application requires accommodation of TO-100 package transistors. The TO-100 package has a larger footprint than TO-5. All other electrical and mechanical specifications remain identical between TO-5 and TO-100 variants within each series.

Q: Are the Mill-Max substitute parts compliant with current regulatory standards?

A: Yes. All Mill-Max substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The obsolete 3-1437508-9 carries undefined REACH status and not applicable RoHS status.

Q: Does the change from PTFE to PCT polyester housing material affect performance?

A: No. Both PTFE and PCT polyester materials provide suitable electrical insulation and thermal stability across the specified operating temperature range of -55°C to 125°C. The material change does not affect functional performance or compatibility with TO-5 or TO-100 transistor packages.

Q: What is the current rating for the substitute parts?

A: All Mill-Max substitute parts are rated for 3 amperes. The original 3-1437508-9 does not specify a current rating in available documentation.

Q: Are the substitute parts available in the same packaging as the original?

A: The substitute parts are supplied in tube packaging. The original 3-1437508-9 packaging specification is not provided in available documentation. Tube packaging is standard for these socket components and does not affect functional performance.

Q: What is the moisture sensitivity level for the substitute parts?

A: All substitute parts carry Moisture Sensitivity Level 1 (Unlimited), identical to the original 3-1437508-9. This classification indicates no moisture sensitivity precautions are required during storage or handling.