TE Connectivity 226978-3 BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The TE Connectivity 226978-3 is a BNC connector jack designed for coaxial RF applications requiring 50-ohm impedance. This female socket connector features right-angle panel mount configuration with through-hole solder termination and bayonet lock fastening. The component is classified as Active product status and is suitable for applications operating across -55°C to 85°C temperature range with maximum frequency rating of 4 GHz. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family, enabling component interchangeability in PCB assembly and RF circuit design.

Substiute Parts

226978-3

TE Connectivity AMP ConnectorsIn Stock: 952226978-3 Datasheet

Current PartRFQ

5226978-3

TE Connectivity AMP ConnectorsIn Stock: 15365226978-3 Datasheet

DirectRFQ

5226978-1

TE Connectivity AMP ConnectorsIn Stock: 10005226978-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 226978-3 are identified based on strict equivalence across the following critical parameters: connector style (BNC), connector type (Jack, Female Socket), impedance (50 Ohms), mounting configuration (Panel Mount, Through Hole, Right Angle), contact and shield termination method (Solder), fastening type (Bayonet Lock), maximum frequency (4 GHz), operating temperature range (-55°C ~ 85°C), voltage rating (500 V), and mating cycle rating (500). Parts meeting these criteria are classified as direct or parametric equivalents. Variations in secondary attributes such as center contact plating material, RoHS compliance status, or included accessories do not preclude substitution when core electrical and mechanical parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

All three parts—226978-3, 5226978-3, and 5226978-1—maintain identical electrical and mechanical specifications for BNC jack connector applications. Selection between these parts is determined by compliance requirements and material specifications.

226978-3 is suitable for applications where RoHS non-compliance is acceptable and gold-plated center contacts are required for enhanced corrosion resistance and contact reliability.

5226978-3 is the direct equivalent offering ROHS3 compliance with identical gold-plated center contact specification. This part is recommended for applications subject to RoHS regulatory requirements while maintaining the same electrical performance and contact material as the original 226978-3.

5226978-1 is a parametric equivalent offering ROHS3 compliance with tin-plated center contacts instead of gold plating. This part is suitable for cost-optimized designs where RoHS compliance is mandatory and tin plating provides acceptable contact performance for the application's frequency and environmental conditions.

All three parts are Active product status and share identical impedance, frequency rating, temperature range, voltage rating, and mating cycle specifications, confirming full interchangeability at the functional level.

Frequently Asked Questions (FAQ)

Q: Can 5226978-3 be used as a direct replacement for 226978-3?

A: Yes. The 5226978-3 maintains all critical electrical and mechanical parameters including 50-ohm impedance, 4 GHz maximum frequency, -55°C to 85°C operating temperature, 500 V voltage rating, and identical mounting configuration. The primary difference is ROHS3 compliance status and packaging configuration.

Q: What is the difference between 5226978-3 and 5226978-1?

A: Both parts are ROHS3 compliant and share identical electrical specifications and mounting characteristics. The distinction is the center contact plating material: 5226978-3 uses gold plating while 5226978-1 uses tin plating. This affects contact durability and corrosion resistance but does not alter impedance, frequency response, or mechanical fit.

Q: Is the 226978-3 suitable for applications requiring RoHS compliance?

A: No. The 226978-3 is classified as RoHS non-compliant. For RoHS-regulated applications, use 5226978-3 or 5226978-1, both of which are ROHS3 compliant.

Q: Do all three parts have the same PCB footprint and mounting hole pattern?

A: Yes. All three parts share identical mounting type (Panel Mount, Through Hole, Right Angle) with flange mounting feature, ensuring identical PCB footprint and hole pattern compatibility.

Q: What is the significance of the center contact plating difference between 226978-3 and 5226978-1?

A: Gold plating (226978-3) provides superior corrosion resistance and contact reliability over extended mating cycles. Tin plating (5226978-1) is a cost-effective alternative suitable for applications with moderate environmental exposure and mating cycle requirements. Both materials maintain the 50-ohm impedance and electrical performance across the 4 GHz frequency range.

Q: Are all three parts available in the same packaging format?

A: All three parts are supplied in Bulk packaging. The 226978-3 includes 3 pieces per connector (1 Connector, 1 Lockwasher, 1 Nut), while 5226978-3 and 5226978-1 do not include these accessories. Verify accessory requirements for your assembly process.

Q: Can these connectors be used interchangeably in existing designs?

A: Yes, provided the design does not have specific compliance or contact material requirements. All three parts meet the same electrical specifications (50 ohms, 4 GHz, 500 V, -55°C to 85°C) and mechanical mounting requirements, confirming functional interchangeability.