Amphenol RF 031-30220-3 BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-30220-3 is an active BNC connector plug designed for 50-ohm coaxial cable applications. This male pin solder-termination connector operates at frequencies up to 4 GHz and is compatible with standard RG-series cables including RG-59, RG-62, and Belden variants. The connector uses bayonet lock fastening and is rated for 500 mating cycles at 500 volts. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design compatibility across manufacturing batches and inventory sources.

Substiute Parts

031-30220-3

Amphenol RFIn Stock: 822031-30220-3 Datasheet

Current PartRFQ

1-221265-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 1228101-221265-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Amphenol RF 031-30220-3 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: BNC
• Connector Type: Plug, Male Pin
• Contact Termination: Solder
• Shield Termination: Clamp
• Impedance: 50 Ohms
• Fastening Type: Bayonet Lock
• Frequency - Max: 4 GHz or greater
• Voltage Rating: 500 V or greater
• Mating Cycles: 500 or greater
• Dielectric Material: PTFE

Compatible Cable Groups: Substitute parts must support RG-59, RG-62, or equivalent cable specifications. Extended cable group compatibility does not disqualify a substitute.

The TE Connectivity Aerospace, Defense and Marine part number 1-221265-1 meets all mandatory matching parameters and is therefore classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol RF 031-30220-3 and TE Connectivity 1-221265-1 are active products with equivalent electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Amphenol RF 031-30220-3:

• ROHS3 Compliant certification explicitly stated
• Silver center contact plating
• Current inventory: 811 pcs

TE Connectivity 1-221265-1:

• Gold center contact plating (enhanced corrosion resistance)
• Free Hanging (In-Line) mounting type specified
• Significantly higher inventory availability: 122,800 pcs
• Includes component kit (connector, clamp braid, clamp, contact, gasket, washer)
• Operating temperature range specified: -65°C to 165°C

Both parts carry EAR99 export classification and match HTSUS code 8536.69.4010. The choice between these substitutes depends on application requirements for contact plating material, mounting configuration, and supply chain priorities.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-221265-1 directly replace the Amphenol RF 031-30220-3 in existing designs?

A: Yes. Both connectors meet identical electrical specifications (50 ohms, 4 GHz maximum frequency, 500 V rating, 500 mating cycles) and use identical fastening (bayonet lock), termination (solder), and dielectric materials (PTFE). The primary difference is the center contact plating (gold versus silver) and the specified mounting type (free hanging in-line versus unspecified).

Q: What is the significance of the center contact plating difference?

A: The Amphenol RF part uses silver plating, while the TE Connectivity part uses gold plating. Gold provides superior corrosion resistance and is preferred in high-reliability applications. Silver is adequate for standard applications but may oxidize over extended storage or in corrosive environments.

Q: Does the "Free Hanging (In-Line)" mounting type of the TE Connectivity part affect compatibility?

A: The mounting type designation indicates the connector's physical configuration for cable attachment. This does not affect electrical compatibility or mating with standard BNC receptacles. The designation clarifies the connector's intended use in free-hanging or in-line cable applications.

Q: Are there any compliance or certification differences between these parts?

A: The Amphenol RF 031-30220-3 explicitly states ROHS3 Compliant status. The TE Connectivity 1-221265-1 compliance status is not specified in the provided data. Both parts carry identical ECCN (EAR99) and HTSUS (8536.69.4010) classifications.

Q: What cable types are compatible with both connectors?

A: Both connectors support RG-59, RG-62, and related cable groups. The TE Connectivity part specifies a broader cable compatibility list including RG-59A, RG-59B, RG-62A, RG-62B, RG-71, RG-71A, RG-71B, and RG-210. This extended compatibility does not restrict use with standard RG-59 or RG-62 cables.

Q: What is the operating temperature range for these connectors?

A: The Amphenol RF 031-30220-3 does not specify an operating temperature range in the provided data. The TE Connectivity 1-221265-1 specifies -65°C to 165°C. For applications requiring confirmed temperature specifications, the TE Connectivity part provides explicit documentation.

Q: How do the inventory levels affect part selection?

A: The Amphenol RF part has 811 pcs in stock, while the TE Connectivity part has 122,800 pcs available. For high-volume production or time-sensitive projects, the TE Connectivity part offers significantly better supply chain availability.