TE Connectivity AMP Connectors 5225398-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 5225398-3 is a BNC Connector Jack with female socket configuration, rated for 50 Ohms impedance and designed for panel mount applications with bulkhead front side nut mounting. This coaxial RF connector features crimp termination for both contact and shield, supporting cable groups RG-55, 55A, 55B, and 223 with a maximum frequency rating of 4 GHz.

The 5225398-3 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this connector specification.

Substiute Parts

5225398-3

TE Connectivity AMP ConnectorsIn Stock: 8435225398-3 Datasheet

Current PartRFQ

31-318-RFX

Amphenol RFIn Stock: 109831-318-RFX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5225398-3 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: BNC
• Connector Type: Jack, Female Socket
• Impedance: 50 Ohms
• Mounting Type: Panel Mount
• Mounting Feature: Bulkhead - Front Side Nut
• Contact Termination: Crimp
• Shield Termination: Crimp
• Fastening Type: Bayonet Lock
• Frequency - Max: 4 GHz
• Number of Ports: 1
• Voltage Rating: 500 V
• Mating Cycles: 500
• Insertion Loss: 0.2 dB

The Amphenol RF 31-318-RFX satisfies all mandatory matching parameters and qualifies as a direct substitute. Both connectors maintain identical electrical performance specifications, mechanical interface requirements, and functional characteristics necessary for RF coaxial applications.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol RF 31-318-RFX is a qualified substitute for the obsolete TE Connectivity AMP Connectors 5225398-3. Selection of the 31-318-RFX is supported by the following factors:

Product Status: The 31-318-RFX maintains active product status with current manufacturing availability, whereas the 5225398-3 is obsolete. This ensures long-term supply chain continuity and access to technical support.

Compliance Certifications: Both connectors maintain equivalent regulatory compliance. The 5225398-3 is RoHS Compliant, and the 31-318-RFX is ROHS3 Compliant, satisfying current environmental and hazardous substance restrictions. Both parts carry identical ECCN (EAR99) and HTSUS (8536.69.4010) classifications.

Electrical and Mechanical Equivalence: All critical performance parameters match exactly, including impedance, frequency rating, voltage rating, mating cycles, and insertion loss. Both connectors support identical mounting configurations and termination methods.

Cable Compatibility Consideration: The 5225398-3 supports cable groups RG-55, 55A, 55B, and 223. The 31-318-RFX supports cable groups RG-174, 188, 188A, 316, LMR-100, and M17/119-RG174. Cable group differences do not affect connector substitution; cable selection must be determined independently based on system requirements.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 31-318-RFX directly replace the TE Connectivity 5225398-3 in existing designs?

A: Yes. The 31-318-RFX meets all electrical and mechanical specifications of the 5225398-3. Both connectors are BNC female jack configurations with 50 Ohm impedance, panel mount bulkhead mounting, crimp termination, and identical performance ratings. Direct substitution is supported without design modification.

Q: What are the differences between these two connectors?

A: The primary differences are product status and center contact material. The 5225398-3 uses Beryllium Copper center contacts and is obsolete. The 31-318-RFX uses Phosphor Bronze center contacts and maintains active product status. The 31-318-RFX also features a wider operating temperature range (-65°C to 165°C versus -55°C to 85°C) and uses Polyoxymethylene (POM) Acetal dielectric material instead of PTFE. These differences do not affect functional equivalence for standard RF applications.

Q: Are there cable compatibility differences between these connectors?

A: The connectors support different cable groups. The 5225398-3 is specified for RG-55, 55A, 55B, and 223 cables. The 31-318-RFX is specified for RG-174, 188, 188A, 316, LMR-100, and M17/119-RG174 cables. Cable selection is independent of connector substitution and must be determined based on system impedance and performance requirements.

Q: What is the difference in package contents between these connectors?

A: The 5225398-3 includes 6 pieces per connector package: connector body, contact, ferrule, gasket, lockwasher, and nut. The 31-318-RFX includes 5 pieces per connector package: connector body, contact, ferrule, lockwasher, and nut. The 31-318-RFX does not include a gasket. This difference does not affect connector functionality or substitution suitability.

Q: Are both connectors RoHS compliant?

A: Yes. The 5225398-3 is RoHS Compliant. The 31-318-RFX is ROHS3 Compliant. Both meet current environmental and hazardous substance restriction requirements. ROHS3 represents the current regulatory standard and provides enhanced compliance assurance.

Q: What is the inventory status of these parts?

A: The 5225398-3 has 822 pieces in stock as new original inventory. The 31-318-RFX has 999 pieces in stock as new original inventory. Both parts are available for immediate procurement.