Pomona Electronics 5079 BNC Connector Plug - Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 5079 is a BNC connector plug designed for 75-ohm coaxial cable applications. This male pin connector features solder termination and is rated for frequencies up to 4 GHz with a 500 V voltage rating. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and legacy equipment support. The connector accommodates RG-59 series cables and related variants, providing bayonet lock fastening for secure mating connections.

Substiute Parts

5079

Pomona ElectronicsIn Stock: 9945079 Datasheet

Current PartRFQ

1-5227079-1

TE Connectivity AMP ConnectorsIn Stock: 9081-5227079-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TE Connectivity AMP Connectors part number 1-5227079-1 is identified as a substitute for the Pomona Electronics 5079. Substitution eligibility is determined by the following parameters:

Matching Parameters:

• Connector Style: BNC (identical)
• Connector Type: Plug, Male Pin (identical)
• Mounting Type: Free Hanging (In-Line) (identical)
• Fastening Type: Bayonet Lock (identical)
• Frequency - Max: 4 GHz (identical)
• Voltage Rating: 500 V (identical)
• Number of Ports: 1 (identical)

Differing Parameters:

• Impedance: 75 Ohms (main part) vs. 50 Ohms (substitute)
• Contact Termination: Solder (main part) vs. Crimp (substitute)
• Shield Termination: Clamp (main part) vs. Crimp (substitute)
• Cable Group: RG-59, 59A, 59B, 62, 62A, 62B, 62C, 210 (main part) vs. RG-59, 59A, 59B, 62, 62A, 62B (substitute)

The substitute part shares the core BNC connector architecture and mechanical interface but operates at a different impedance level and employs different termination methods.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-5227079-1 is listed as a substitute part for the Pomona Electronics 5079. Selection between these parts must account for the following factors:

Product Status: The Pomona Electronics 5079 is obsolete, while the TE Connectivity 1-5227079-1 is active and currently in production. Active product status ensures ongoing availability and supply chain continuity.

Compliance: Both parts meet RoHS requirements. The Pomona Electronics 5079 is ROHS3 Compliant, and the TE Connectivity 1-5227079-1 is RoHS Compliant. Both parts carry the same ECCN classification (EAR99) and HTSUS code (8536.69.4010).

Impedance Consideration: The main part operates at 75 ohms while the substitute operates at 50 ohms. This impedance difference is a critical electrical parameter that affects signal transmission characteristics in the connected system.

Termination Method: The main part uses solder termination with clamp shield termination, while the substitute uses crimp termination for both contact and shield. This represents a different assembly methodology and may require different installation procedures and tooling.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-5227079-1 be used as a direct replacement for the Pomona Electronics 5079?

A: Both connectors share the same BNC style, male pin configuration, bayonet lock fastening, and frequency rating. However, the impedance differs (75 ohms vs. 50 ohms) and the termination methods differ (solder/clamp vs. crimp). Substitution feasibility depends on the specific application requirements and system impedance specifications.

Q: What is the significance of the impedance difference between these parts?

A: Impedance is a fundamental electrical parameter that determines signal transmission characteristics. The 75-ohm specification of the main part and the 50-ohm specification of the substitute are distinct values. System design and cable specifications must be evaluated to determine compatibility.

Q: Are the cable groups compatible between these two connectors?

A: The Pomona Electronics 5079 supports RG-59, 59A, 59B, 62, 62A, 62B, 62C, and 210 cable groups. The TE Connectivity 1-5227079-1 supports RG-59, 59A, 59B, 62, 62A, and 62B. The substitute supports a subset of the cable groups supported by the main part.

Q: What is the difference between solder and crimp termination?

A: Solder termination involves melting solder to create a permanent connection between the conductor and the connector contact. Crimp termination uses mechanical pressure to compress the connector onto the conductor. These are distinct assembly methods requiring different tools and procedures.

Q: Are both parts RoHS compliant?

A: Yes. The Pomona Electronics 5079 is ROHS3 Compliant, and the TE Connectivity 1-5227079-1 is RoHS Compliant. Both parts meet regulatory requirements for restricted substances.

Q: What is the inventory status of these parts?

A: The Pomona Electronics 5079 has 981 pieces in stock as new original inventory. The TE Connectivity 1-5227079-1 has 846 pieces in stock as new original inventory. Both are available for procurement.