Amphenol RF 122487 TNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Amphenol RF 122487 is an active TNC connector jack designed for 50-ohm RF coaxial applications. This female socket connector features panel mount installation with rear-side bulkhead mounting and crimp termination for both center contact and shield. The connector operates at frequencies up to 11 GHz and is suitable for RG-174, RG-188A, and RG-316 cable groups. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when inventory requirements necessitate alternative manufacturers.

Substiute Parts

122487

Amphenol RFIn Stock: 912122487 Datasheet

Current PartRFQ

5414168-3

TE Connectivity AMP ConnectorsIn Stock: 15935414168-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of coaxial RF connectors is determined by strict equivalence across core electrical and mechanical parameters. The Amphenol RF 122487 and TE Connectivity AMP Connectors 5414168-3 are functionally equivalent based on the following criteria:

Matching Parameters:

• Connector style: TNC
• Connector type: Jack, Female Socket
• Impedance: 50 Ohms
• Contact termination: Crimp
• Shield termination: Crimp
• Mounting type: Panel Mount
• Frequency maximum: 11 GHz
• Voltage rating: 500 V
• Mating cycles: 500
• Fastening type: Threaded
• Number of ports: 1
• RoHS3 compliance
• REACH affected status
• ECCN classification: EAR99

Both parts support RG-174, RG-188, and RG-316 cable groups with minor cable designation variations. The substitute part maintains full electrical and mechanical compatibility for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol RF 122487 and TE Connectivity 5414168-3 are active products with full RoHS3 compliance and REACH affected status. Selection between these parts is based on availability, packaging requirements, and mechanical mounting orientation.

The Amphenol RF 122487 features rear-side bulkhead mounting with PTFE dielectric material and phosphor bronze center contact. The TE Connectivity 5414168-3 features front-side bulkhead mounting with PMP dielectric material and beryllium copper center contact. The mounting feature difference (rear versus front side nut position) is the primary mechanical distinction and must be evaluated against specific panel installation requirements.

Both connectors maintain identical electrical specifications including 50-ohm impedance, 11 GHz maximum frequency, 500 V voltage rating, and 500 mating cycles. The Amphenol part specifies 0.18 dB insertion loss; the TE Connectivity part does not provide this specification in available documentation.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 5414168-3 directly replace the Amphenol RF 122487?

A: Direct replacement is possible from an electrical standpoint. Both connectors share identical TNC jack configuration, 50-ohm impedance, crimp termination, and frequency specifications. The primary consideration is the mounting feature difference: the Amphenol part uses rear-side bulkhead mounting while the TE Connectivity part uses front-side bulkhead mounting. Panel installation geometry must accommodate this difference.

Q: What is the difference between rear-side and front-side bulkhead mounting?

A: Rear-side bulkhead mounting positions the nut on the rear surface of the panel, while front-side bulkhead mounting positions the nut on the front surface. This affects the physical installation orientation and panel access requirements. Selection depends on the specific panel configuration and available space.

Q: Are the dielectric materials interchangeable?

A: The Amphenol RF 122487 uses PTFE dielectric material while the TE Connectivity 5414168-3 uses PMP dielectric material. Both materials are suitable for RF applications at the specified frequency range and voltage rating. Material selection does not affect electrical compatibility for standard 50-ohm RF applications.

Q: What is the significance of the center contact material difference?

A: The Amphenol part uses phosphor bronze center contact while the TE Connectivity part uses beryllium copper. Both materials are gold-plated and suitable for crimp termination. The material difference does not affect electrical performance for the specified 11 GHz frequency range and 500 V voltage rating.

Q: Are both parts suitable for RG-174, RG-188, and RG-316 cables?

A: Both connectors support these cable groups. The Amphenol part specifies RG-174, RG-188A, and RG-316. The TE Connectivity part specifies RG-174, RG-188, and RG-316. The cable group compatibility is functionally equivalent for standard RF applications.

Q: What packaging differences exist between these parts?

A: The Amphenol RF 122487 is supplied in bag packaging while the TE Connectivity 5414168-3 is supplied in bulk packaging. Packaging selection may affect inventory management and handling procedures but does not impact connector performance or compatibility.

Q: Are both parts RoHS3 compliant?

A: Yes, both the Amphenol RF 122487 and TE Connectivity 5414168-3 are RoHS3 compliant and REACH affected. Both parts carry EAR99 ECCN classification and 8536.69.4010 HTSUS code.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.