Amphenol RF 112128 BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 112128 is a BNC connector plug designed for 50-ohm coaxial cable applications. This male pin connector features crimp termination for both center contact and shield, with a bayonet lock fastening mechanism. The connector is rated for frequencies up to 4 GHz and is suitable for free-hanging (in-line) mounting configurations.

The 112128 maintains Active product status and is ROHS3 compliant with full REACH compliance. Substitute parts may be required due to inventory constraints, design phase transitions, or specific procurement requirements. The 112124 is identified as a parametric equivalent with identical electrical and mechanical specifications.

Substiute Parts

112128

Amphenol RFIn Stock: 1164112128 Datasheet

Current PartRFQ

112124

Amphenol RFIn Stock: 897112124 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Amphenol RF 112128 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following categories:

Electrical Parameters: Impedance (50 Ohms), frequency rating (4 GHz maximum), voltage rating (500 V), and insertion loss (0.2 dB).

Mechanical Parameters: Connector style (BNC), connector type (Plug, Male Pin), contact termination method (Crimp), shield termination method (Crimp), mounting type (Free Hanging/In-Line), and fastening mechanism (Bayonet Lock).

Material and Construction: Center contact material (Brass), body material (Brass), body finish (Nickel), center contact plating (Gold), and dielectric material (Polyoxymethylene/POM Acetal).

Compatibility: Compatible cable groups include RG-58 Plenum, 122, Belden 88240, and 89907.

The Amphenol RF 112124 meets all substitution criteria as a parametric equivalent part.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (112128): The Amphenol RF 112128 is the recommended choice for new designs. This part maintains Active product status, ensuring continued manufacturer support, availability, and compliance updates. The 112128 is ROHS3 compliant and REACH affected, meeting current regulatory requirements for electronic component procurement.

Substitute Selection (112124): The Amphenol RF 112124 is electrically and mechanically equivalent to the 112128 across all specified parameters. However, this part carries a "Not For New Designs" status, indicating it is in a product lifecycle transition phase. The 112124 remains suitable for:

• Existing design revisions where component qualification has already been completed
• Replacement and repair applications for systems currently using this connector
• Inventory management when 112128 availability is constrained

Both parts are ROHS3 compliant and REACH affected, ensuring regulatory compliance in either selection. The choice between 112128 and 112124 should be based on design phase requirements and inventory availability rather than electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the 112124 be used as a direct replacement for the 112128 in new designs?

A: The 112124 is electrically and mechanically equivalent to the 112128. However, the 112124 carries a "Not For New Designs" status. New designs should specify the 112128 to ensure long-term manufacturer support and compliance continuity. The 112124 is appropriate for existing designs or repair applications.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in connector style (BNC), connector type (Plug, Male Pin), impedance (50 Ohms), termination methods (Crimp for both center and shield), mounting type (Free Hanging/In-Line), fastening mechanism (Bayonet Lock), frequency rating (4 GHz), voltage rating (500 V), and insertion loss (0.2 dB). Both parts meet these criteria identically.

Q: Are there any differences in packaging or included components?

A: Both the 112128 and 112124 are supplied in Bag packaging and include identical components: 1 Connector, 1 Contact, and 1 Ferrule per unit.

Q: What cable types are compatible with these connectors?

A: Both connectors are compatible with RG-58 Plenum, 122, Belden 88240, and 89907 cable groups. These are standard 50-ohm coaxial cables suitable for RF applications up to 4 GHz.

Q: Do both parts meet RoHS and REACH compliance requirements?

A: Yes. Both the 112128 and 112124 are ROHS3 compliant and REACH affected, meeting current regulatory requirements for electronic component procurement in regulated markets.

Q: What is the mating cycle rating for these connectors?

A: Both connectors are rated for 500 mating cycles, indicating the expected number of connect/disconnect operations before performance degradation.

Q: How does insertion loss affect system performance?

A: Both connectors specify 0.2 dB insertion loss. This parameter indicates signal attenuation through the connector at RF frequencies. The identical specification ensures equivalent performance in RF signal transmission applications.