Amphenol ICC 456-218 BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 456-218 is a BNC connector jack featuring a female socket configuration with 75 ohms impedance, designed for panel mount applications using crimp termination. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure ongoing component availability for production and field service applications.

Substiute Parts

456-218

Amphenol ICC (Commercial Products)In Stock: 1166456-218 Datasheet

Current PartRFQ

112253

Amphenol RFIn Stock: 911112253 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete Amphenol ICC 456-218 with the Amphenol RF 112253 is based on electrical and mechanical parameter equivalence. Both components share identical core specifications: BNC connector style, female socket jack configuration, 75 ohms impedance, panel mount bulkhead mounting with front side nut, crimp termination for both contact and shield, bayonet lock fastening, single port configuration, nickel body finish, and gold center contact plating.

The substitute part 112253 maintains compatibility with the primary cable group RG-179 while extending support to additional cable variants including RG-179A, RG-179B, RG-187, RG-187A, Belden 9221, and M17/94-RG179. Both parts employ identical mounting and termination methodologies, ensuring direct functional replacement in panel mount applications.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol RF 112253 serves as the direct active equivalent for the obsolete Amphenol ICC 456-218. Selection of the 112253 is supported by the following engineering criteria:

Product Status and Availability: The 112253 maintains active product status with documented inventory availability, whereas the 456-218 is classified as obsolete and no longer manufactured.

Regulatory Compliance: Both components are RoHS compliant. The 112253 achieves ROHS3 compliance, representing current regulatory standards. The 112253 is REACH affected, indicating compliance with current chemical substance regulations.

Electrical and Mechanical Equivalence: The substitute part maintains identical electrical specifications (75 ohms impedance, 200 V minimum voltage rating with 500 V capability in the substitute), mechanical configuration (BNC jack female socket, panel mount bulkhead, bayonet lock fastening), and termination methodology (crimp contact and shield termination).

Enhanced Specifications: The 112253 provides extended cable group compatibility beyond the primary RG-179 specification, supporting RG-179A, RG-179B, RG-187, RG-187A, Belden 9221, and M17/94-RG179 cables. The substitute part includes documented mating cycle rating of 500 cycles and maximum frequency specification of 4 GHz.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 112253 directly replace the obsolete 456-218 in existing designs?

A: Yes. Both components share identical connector style (BNC), socket configuration (female jack), impedance (75 ohms), mounting methodology (panel mount bulkhead with front side nut), and termination approach (crimp contact and shield). The 112253 is electrically and mechanically equivalent for direct substitution.

Q: What cable types are compatible with the 112253 substitute part?

A: The 112253 supports RG-179, RG-179A, RG-179B, RG-187, RG-187A, Belden 9221, and M17/94-RG179 cables. The original 456-218 specification referenced RG-179 cable group compatibility.

Q: Are there differences in dielectric material between the two parts?

A: Yes. The obsolete 456-218 uses thermoplastic dielectric material, while the active 112253 substitute uses polytetrafluoroethylene (PTFE) dielectric material. PTFE provides superior high-frequency performance and thermal stability characteristics.

Q: What is included in the packaging of the 112253?

A: The 112253 is supplied in bag packaging and includes six pieces per connector: the connector body, contact, ferrule, lockwasher, nut, and sleeve.

Q: Does the 112253 meet current regulatory requirements?

A: Yes. The 112253 is ROHS3 compliant and REACH affected, meeting current environmental and chemical substance regulations. The obsolete 456-218 was RoHS compliant under earlier standards.

Q: What is the voltage rating difference between the two parts?

A: The obsolete 456-218 carries a 200 V voltage rating. The active 112253 substitute is rated for 500 V, providing enhanced voltage capability for applications requiring higher voltage margins.

Q: Is the 112253 suitable for high-frequency applications?

A: The 112253 is specified for operation up to 4 GHz maximum frequency. The original 456-218 did not include frequency specification documentation.