PT02A-8-4S Circular Connector Equivalent and Substitute Parts

Part Overview

The PT02A-8-4S is a 4-position circular connector receptacle with female sockets manufactured by Amphenol Industrial Operations under the MIL-DTL-26482 Series I specification. This panel-mount connector features solder cup termination, bayonet lock fastening, and olive drab chromate over cadmium finish. The part is currently in active production status and maintains widespread inventory availability. Identifying substitute parts becomes necessary when supply constraints occur, when specific compliance requirements (such as RoHS3 compliance) are mandated, or when alternative surface finishes better suit particular application environments.

Substiute Parts

PT02A-8-4S

Amphenol Industrial OperationsIn Stock: 1264PT02A-8-4S Datasheet

Current PartRFQ

PT02A-8-4S(025)

Amphenol Industrial OperationsIn Stock: 7713PT02A-8-4S(025) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PT02A-8-4S are determined by strict equivalency of core electrical and mechanical parameters. The following parameters define substitutability:

• Connector type and configuration: Receptacle, female sockets, 4-position
• Shell size and insert designation: 8-4 format under MIL-DTL-26482 Series I
• Mounting interface: Panel mount with flange
• Termination method: Solder cup
• Fastening mechanism: Bayonet lock
• Operational range: -55°C to 125°C
• Contact system: Copper alloy with gold mating finish
• Insert material: Neoprene

Variations in shell finish and plating (such as olive drab chromate over cadmium versus black zinc cobalt) and compliance status do not affect mechanical or electrical compatibility. These differences address specific environmental corrosion resistance needs and regulatory compliance requirements rather than functional substitutability.

Parameter Comparison

Engineering Selection Recommendations

Both PT02A-8-4S and PT02A-8-4S(025) are functionally equivalent for applications requiring 4-position MIL-DTL-26482 Series I circular connectors with solder cup termination and bayonet fastening.

PT02A-8-4S is appropriate for aerospace, military, and industrial applications where olive drab finish and cadmium plating provide corrosion resistance in specific environmental conditions and where RoHS compliance is not a procurement requirement.

PT02A-8-4S(025) is appropriate for applications with regulatory mandates for RoHS3 compliance and REACH unaffected status. The black zinc cobalt finish provides equivalent corrosion protection to cadmium plating while meeting modern environmental standards. This variant maintains full mechanical and electrical compatibility with the original specification.

Selection between these parts depends on compliance requirements and environmental specifications rather than connector functionality.

Frequently Asked Questions (FAQ)

Q: Are PT02A-8-4S and PT02A-8-4S(025) mechanically compatible? A: Yes. Both connectors share identical shell size (8-4), mounting configuration (panel mount flange), termination method (solder cup), and fastening mechanism (bayonet lock). They are mechanically interchangeable.

Q: What is the functional difference between the two parts? A: There is no functional difference. Both parts maintain the same electrical and mechanical specifications. The differences are limited to surface finish (olive drab chromate over cadmium versus black zinc cobalt) and regulatory compliance status (RoHS and REACH).

Q: When should I select PT02A-8-4S(025) over PT02A-8-4S? A: Select PT02A-8-4S(025) when your design or procurement requirements mandate RoHS3 compliance or REACH unaffected status. The black zinc cobalt finish also addresses applications where cadmium exposure regulations apply.

Q: Do both parts have the same operating temperature range? A: Yes. Both connectors are rated for -55°C to 125°C continuous operation, making them suitable for aerospace, industrial, and military applications in equivalent thermal environments.

Q: Is the black zinc cobalt finish as durable as cadmium plating? A: The finishes are specified separately in each part number and address different environmental and regulatory contexts. Selection should be based on your application's specific environmental exposure and compliance requirements as defined in your procurement standards.

Q: Can I use these connectors in the same assembly without redesign? A: Yes. Since both parts are mechanically and electrically identical, they can be used interchangeably in the same panel mount application without any design modifications or recertification testing.