Pomona Electronics 4119-93 BNC Coaxial Connector Terminator Adapter

Part Overview

The Pomona Electronics 4119-93 is a coaxial connector terminator adapter featuring a BNC jack-to-plug configuration with 93-ohm impedance. This component is classified as obsolete, with 764 units currently available in new original stock. Due to its obsolete status, identifying equivalent substitute parts is essential for system designers and procurement specialists requiring functional alternatives for ongoing production or maintenance applications.

Substiute Parts

4119-93

Pomona ElectronicsIn Stock: 7834119-93 Datasheet

Current PartRFQ

4119-75

Pomona ElectronicsIn Stock: 10594119-75 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4119-93 is determined by the following critical parameters:

• Connector Style: BNC (required match)
• Connector Type: Adapter, Jack to Plug (required match)
• Mounting Type: Free Hanging (In-Line) (required match)
• Frequency - Max: 500 MHz (required match or higher)
• Contact Material: Beryllium Copper, Brass (required match)
• Contact Finish: Gold (required match)
• Body Material: Brass (required match)
• Dielectric Material: PTFE (required match)
• Features: Feed Through (required match)

The primary differentiator among available alternatives is impedance specification. The 4119-93 operates at 93-ohm impedance, while substitute options may operate at different impedance values. Impedance selection must align with the specific RF system requirements and cannot be arbitrarily changed without system redesign considerations.

Parameter Comparison

Engineering Selection Recommendations

The 4119-93 is classified as obsolete. The Pomona Electronics 4119-75 is available as an active product alternative with identical mechanical and electrical characteristics except for impedance specification. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards.

Selection between these parts depends solely on system impedance requirements. The 4119-93 specifies 93-ohm impedance, while the 4119-75 specifies 75-ohm impedance. System design documentation must confirm which impedance value is required before component selection.

Frequently Asked Questions (FAQ)

Q: Can the 4119-75 directly replace the 4119-93 in existing designs?

A: Direct replacement is possible only if the system impedance specification permits 75-ohm operation. The 4119-75 maintains identical mechanical form factor, mounting type, connector style, and frequency rating. Impedance compatibility must be confirmed with system design requirements.

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

A: Impedance is a fundamental RF parameter that affects signal transmission characteristics. The 4119-93 operates at 93 ohms, while the 4119-75 operates at 75 ohms. These values are not interchangeable without system-level analysis.

Q: Are both parts RoHS and REACH compliant?

A: Both the 4119-93 and 4119-75 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the 4119-93 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production. The 4119-75 remains in active production as a current alternative from Pomona Electronics.

Q: What packaging options are available?

A: The 4119-93 is available in standard packaging. The 4119-75 is supplied in bulk packaging.