TE Connectivity 1274359-1 BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1274359-1 is a BNC connector jack (female socket) rated for 75 ohms impedance, designed for through-hole PCB mounting with solder termination. This coaxial RF connector operates at frequencies up to 2 GHz and is classified as an active product. Equivalent and substitute parts are identified to provide alternatives for procurement, inventory management, and application-specific requirements where the primary part may be unavailable or where design parameters permit functional interchange.

Substiute Parts

1274359-1

TE Connectivity AMP ConnectorsIn Stock: 11641274359-1 Datasheet

Current PartRFQ

6274359-1

TE Connectivity AMP ConnectorsIn Stock: 66506274359-1 Datasheet

DirectRFQ

5-1634506-2

TE Connectivity AMP ConnectorsIn Stock: 9565-1634506-2 Datasheet

Parametric EquivalentRFQ

0731712601

MolexIn Stock: 13600731712601 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 1274359-1 is determined by the following critical parameters: connector style (BNC), connector type (jack, female socket), impedance (75 ohms), fastening type (bayonet lock), contact and shield termination method (solder), and mounting configuration (through hole PCB). Parts are grouped into three categories based on substitution relationship and parameter alignment:

Direct Manufacturer Substitute: Parts sharing identical functional specifications with the main part, differing only in packaging, compliance status, or minor material specifications that do not affect electrical performance within the stated operating range.

Parametric Equivalent: Parts meeting core electrical and mechanical requirements but with variations in frequency rating, material composition, or product status that require engineering evaluation for specific applications.

Similar Alternative: Parts with the same connector style and impedance but differing in mounting type or mechanical configuration, suitable only for applications where the mounting difference is accommodated by the design.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 6274359-1 (Direct Substitute): This part is the primary substitute for the 1274359-1. Both parts are manufactured by TE Connectivity AMP Connectors and share identical functional specifications for BNC jack configuration, 75-ohm impedance, through-hole mounting, and solder termination. The 6274359-1 offers extended frequency capability (4 GHz versus 2 GHz) and is RoHS Compliant with REACH Affected status, making it suitable for applications requiring regulatory compliance. The narrower operating temperature range (-55°C to 85°C versus -65°C to 85°C) must be evaluated for low-temperature applications. This part is currently active and available in higher inventory quantities (6549 pcs).

TE Connectivity 5-1634506-2 (Parametric Equivalent): This part meets the core electrical requirements of 75-ohm impedance, BNC jack configuration, and through-hole solder termination. However, it is classified as obsolete and carries material differences including phosphor bronze center contact (versus beryllium copper), zinc alloy body (versus zinc), and polymethylpentene dielectric (versus PTFE). The frequency rating matches the main part at 2 GHz. This part is suitable only for legacy system maintenance or where specific material properties are required. RoHS Compliance is confirmed; REACH status is vendor undefined.

Molex 0731712601 (Similar Alternative): This part is not a direct substitute due to fundamental mounting differences. The 0731712601 is configured for board edge, end-launch, and panel mount applications with bulkhead front-side nut fastening, whereas the 1274359-1 is a through-hole PCB mount connector. The Molex part operates at 3 GHz and is ROHS3 Compliant. This part is applicable only to designs where the PCB layout accommodates edge-launch mounting and panel-mount configuration. Operating temperature is not specified for this part.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 6274359-1 be used as a direct replacement for the 1274359-1 in all applications?

A: The 6274359-1 is functionally compatible for applications operating at frequencies up to 2 GHz. The extended frequency capability (4 GHz) of the 6274359-1 does not create incompatibility. The narrower operating temperature range (-55°C to 85°C) must be verified against application requirements; if operation below -55°C is required, the 1274359-1 is necessary. Both parts are through-hole PCB mount with identical solder termination and 75-ohm impedance.

Q: What is the significance of the packaging difference between 1274359-1 and 6274359-1?

A: The 1274359-1 is supplied in standard packaging (not specified), while the 6274359-1 is supplied in tray packaging. Packaging affects handling, storage, and automated assembly processes but does not alter electrical or mechanical performance. Selection between these parts should consider procurement volume, assembly equipment compatibility, and inventory management requirements.

Q: Is the 5-1634506-2 suitable for new designs?

A: The 5-1634506-2 is classified as obsolete and is not recommended for new designs. This part is appropriate only for maintenance and repair of existing systems using this component. New designs should utilize the active 1274359-1 or 6274359-1.

Q: Why is the Molex 0731712601 listed as a similar alternative rather than a direct substitute?

A: The 0731712601 differs fundamentally in mounting configuration. It is designed for board edge, end-launch mounting with panel-mount bulkhead fastening, whereas the 1274359-1 is a through-hole PCB mount connector. These mounting types are not interchangeable without significant PCB redesign. The 0731712601 is applicable only to applications where the PCB layout and mechanical design accommodate edge-launch mounting.

Q: What compliance certifications should be considered when selecting between substitute parts?

A: The 1274359-1 has RoHS status listed as not applicable. The 6274359-1 is RoHS Compliant with REACH Affected status, making it suitable for applications subject to EU regulatory requirements. The 5-1634506-2 is RoHS Compliant with vendor-undefined REACH status. The 0731712601 is ROHS3 Compliant. Applications requiring specific regulatory compliance should select parts with confirmed certification status.

Q: Are there material composition differences that affect performance?

A: The 1274359-1 and 6274359-1 both use beryllium copper center contacts and PTFE dielectric, ensuring consistent RF performance. The 5-1634506-2 uses phosphor bronze center contact and polymethylpentene dielectric, which may affect impedance stability and frequency response characteristics. For applications requiring consistent RF performance across temperature ranges, the 1274359-1 or 6274359-1 are preferred.

Q: What is the maximum frequency at which each part can operate?

A: The 1274359-1 operates at frequencies up to 2 GHz. The 6274359-1 operates at frequencies up to 4 GHz. The 5-1634506-2 operates at frequencies up to 2 GHz. The 0731712601 operates at frequencies up to 3 GHz. Selection should be based on the application's maximum operating frequency requirement.