TE Connectivity AMP Connectors 227079-3 BNC Plug Coaxial Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 227079-3 is a BNC connector plug with straight male pin configuration, rated for 50 ohms impedance, and designed for free hanging (in-line) crimp termination. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing procurement and system maintenance. The 227079-3 supports coaxial cable groups RG-62, 62A, and 62B with a maximum frequency rating of 4 GHz and operates across a temperature range of -55°C to 85°C.

Substiute Parts

227079-3

TE Connectivity AMP ConnectorsIn Stock: 865227079-3 Datasheet

Current PartRFQ

227079-7

TE Connectivity AMP ConnectorsIn Stock: 933227079-7 Datasheet

DirectRFQ

31-321

Amphenol RFIn Stock: 73431-321 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 227079-3 are qualified based on strict electrical and mechanical parameter alignment. All substitute candidates must match the following core parameters: BNC connector style, male pin plug type, 50 ohms impedance, crimp contact and shield termination, free hanging (in-line) mounting configuration, bayonet lock fastening, 4 GHz maximum frequency, 500 V voltage rating, and 500 mating cycles. Additionally, substitute parts must support compatible coaxial cable groups and maintain equivalent insertion loss performance of 0.2 dB.

The identified substitute parts are:

TE Connectivity AMP Connectors 227079-7: Active product status with expanded cable group compatibility (RG-59, 59A, 59B, 62, 62A, 62B) and identical electrical specifications.

Amphenol RF 31-321: Active product status with extended cable group support (RG-59, 59B, 62, 140, 210, Belden 8241, 8263, 8279, 9209) and enhanced operating temperature range (-65°C ~ 165°C).

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity AMP Connectors 227079-7 is the direct manufacturer equivalent with active product status. This part maintains identical electrical and mechanical specifications to the obsolete 227079-3 while offering expanded cable group compatibility. The 227079-7 is suitable for applications requiring RG-59 series cable support in addition to RG-62 series. However, this part retains RoHS non-compliant status, which may present constraints in regulated procurement environments.

Amphenol RF 31-321 provides an alternative from a different manufacturer with active product status and ROHS3 compliance certification. This part supports the broadest cable group range and offers an extended operating temperature range (-65°C ~ 165°C) compared to the original specification (-55°C ~ 85°C). The 31-321 utilizes PTFE dielectric material instead of polyethylene, which may provide enhanced performance characteristics in specific applications. Selection of the 31-321 is appropriate for applications requiring regulatory compliance or extended thermal operating conditions.

Both substitute parts maintain the core electrical performance parameters: 50 ohms impedance, 4 GHz maximum frequency, 500 V voltage rating, 0.2 dB insertion loss, and 500 mating cycles. Cable group compatibility must be verified against system requirements prior to final component selection.

Frequently Asked Questions (FAQ)

Q: Can the 227079-7 be used as a direct replacement for the 227079-3?

A: Yes. The 227079-7 maintains identical electrical specifications (50 ohms, 4 GHz, 0.2 dB insertion loss) and mechanical configuration (BNC plug, crimp termination, free hanging mount, bayonet lock). The 227079-7 supports all cable groups compatible with the 227079-3 (RG-62, 62A, 62B) plus additional RG-59 series support. Both parts are manufactured by TE Connectivity AMP Connectors.

Q: What is the primary difference between the 227079-7 and 31-321?

A: The primary differences are manufacturer, compliance status, and dielectric material. The 227079-7 is manufactured by TE Connectivity with RoHS non-compliant status and polyethylene dielectric. The 31-321 is manufactured by Amphenol RF with ROHS3 compliance and PTFE dielectric. Both maintain identical core electrical specifications and support overlapping cable groups.

Q: Does the 31-321 support all cable groups compatible with the 227079-3?

A: Yes. The 31-321 supports RG-62 cable group, which is the primary cable group for the 227079-3. Additionally, the 31-321 supports RG-59, 140, 210, and multiple Belden cable types, providing broader system compatibility.

Q: What is the significance of the extended operating temperature range on the 31-321?

A: The 31-321 operates across -65°C to 165°C, compared to the 227079-3 specification of -55°C to 85°C. This extended range accommodates applications requiring operation in extreme thermal environments. Applications operating within the original -55°C to 85°C range are not affected by this specification difference.

Q: Are there packaging differences between these parts?

A: The 227079-3 packaging is not specified in available documentation. The 227079-7 is supplied in bulk packaging. The 31-321 is supplied in bulk packaging. Packaging configuration should be confirmed with the component supplier based on procurement requirements.

Q: What is the significance of the dielectric material difference between polyethylene and PTFE?

A: Polyethylene (PE) and polytetrafluoroethylene (PTFE) are both suitable dielectric materials for 50 ohm coaxial connectors at 4 GHz. PTFE offers superior thermal stability and lower dielectric loss at higher frequencies. For applications operating within the specified 4 GHz maximum frequency and standard temperature ranges, both materials provide equivalent performance.

Q: Is RoHS compliance a requirement for component selection?

A: RoHS compliance requirements depend on application and regulatory jurisdiction. The 227079-7 is RoHS non-compliant, matching the original 227079-3 status. The 31-321 is ROHS3 compliant. Applications subject to RoHS regulations must select the 31-321. Applications without RoHS requirements may select either substitute based on other criteria.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes, provided cable group compatibility is verified. All three parts (227079-3, 227079-7, 31-321) share identical BNC connector style, male pin configuration, crimp termination, bayonet lock fastening, and 50 ohm impedance. Cable group compatibility must be confirmed: the 227079-3 and 227079-7 support RG-62 series; the 31-321 supports RG-62 plus extended cable groups.