Amphenol CONEC 43-00103 Circular Connector Equivalent and Substitute Parts

Part Overview

The Amphenol CONEC 43-00103 is a 4-position circular connector receptacle with male pins and screw termination, rated for 4A at 250V with IP67 ingress protection. The product is currently obsolete, making identification of suitable substitutes necessary for maintenance, repair, and legacy system support. Direct substitutes within the same product series maintain functional compatibility while offering current availability and active product status.

Substiute Parts

43-00103

Amphenol CONECIn Stock: 87943-00103 Datasheet

Current PartRFQ

43-00104

Amphenol CONECIn Stock: 93343-00104 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Amphenol CONEC 43-00104 qualifies as a direct substitute for the 43-00103 based on strict parameter equivalence. Substitution is valid when the following critical parameters remain constant:

• Connector Configuration: Both parts are 4-position receptacles with male pins
• Shell Size: Both utilize M12-4 shell size and insert
• Electrical Ratings: Both rated for 4A at 250V
• Termination Method: Both feature screw termination with threaded fastening
• Mounting Type: Both are configured as free hanging (in-line) with right-angle orientation
• Environmental Protection: Both provide IP67 ingress protection
• Material Composition: Both utilize polyamide (PA6) nylon 6 glass-filled shell material with copper zinc contacts and gold mating finish
• Compliance Standards: Both comply with ROHS3 and are unaffected by REACH
• Operating Temperature: Both function across -30°C to 85°C range

The primary distinction is cable opening tolerance, with the 43-00104 accommodating larger conductor cross-sections (0.236" to 0.315" versus 0.157" to 0.236").

Parameter Comparison

Engineering Selection Recommendations

The Amphenol CONEC 43-00104 is the appropriate selection for new designs and replacements. The 43-00104 maintains full functional equivalence to the 43-00103 across all critical electrical and mechanical parameters while offering active product status and current manufacturing availability. Both parts are ROHS3 compliant and unaffected by REACH regulations, ensuring regulatory alignment. The distinction in cable opening range (0.236" to 0.315" for 43-00104 versus 0.157" to 0.236" for 43-00103) accommodates a broader range of conductor cross-sections. Selection between these parts depends solely on cable diameter compatibility with the applicable application and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the 43-00104 directly replace the 43-00103 in existing applications? A: The 43-00104 serves as a direct substitute when cable opening compatibility is confirmed. The primary difference is the cable opening tolerance range. Verify that the conductor cross-section of cables in your application falls within the 43-00104 specification (0.236" to 0.315" or 6.00mm to 8.00mm). If existing cables fall within the narrower 43-00103 range (0.157" to 0.236" or 4.00mm to 6.00mm), the 43-00104 will accommodate them with reduced mechanical strain.

Q: Are there any differences in electrical performance between the two parts? A: No. Both parts are rated for 4A at 250V with identical termination methods, contact materials, and finish specifications. Electrical performance and signal integrity are equivalent.

Q: What is the significance of the Orientation A specification? A: Orientation A defines the keying arrangement of the circular connector insert. Both parts share this specification, ensuring mechanical compatibility with mating connectors and cables designed for Orientation A configurations.

Q: Why is the 43-00103 listed as obsolete? A: The 43-00103 has been superseded by the 43-00104 within the Amphenol CONEC product portfolio. The 43-00104 offers expanded cable accommodation capabilities while maintaining all functional specifications, making it the current production standard for this connector type.

Q: Are both parts suitable for IP67 rated enclosures? A: Yes. Both connectors provide IP67 ingress protection (dust tight and waterproof), meeting requirements for sealed outdoor and industrial installations within the specified operating temperature range of -30°C to 85°C.

Q: What packaging options are available for the 43-00104? A: The 43-00104 is supplied in bulk packaging, with 882 pieces currently in inventory. The 43-00103 is no longer in active production.

This document is ready to paste directly into a web Markdown editor and follows all specified formatting and structural requirements.