Amphenol RF 031-70235 BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-70235 is an active BNC connector plug designed for 75-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 operates across a temperature range of -40°C to 155°C. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different cable specifications or packaging requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

031-70235

Amphenol RFIn Stock: 720031-70235 Datasheet

Current PartRFQ

UPL220-025

Cinch Connectivity Solutions TrompeterIn Stock: 1015UPL220-025 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Amphenol RF 031-70235 with the Cinch Connectivity Solutions Trompeter UPL220-025 is based on matching the following critical parameters:

Electrical Compatibility:

• Both connectors maintain 75-ohm impedance specification
• Both support maximum frequency of 4 GHz
• Both feature 500 V voltage rating
• Both utilize crimp termination for center contact and shield

Mechanical Compatibility:

• Both employ BNC connector style with bayonet lock fastening
• Both are male pin plug connectors
• Both are configured as free hanging (in-line) mounting type
• Both feature brass body with nickel finish and gold-plated center contact
• Both use PTFE dielectric material

Regulatory Compliance:

• Both are ROHS3 compliant
• Both are REACH affected
• Both carry EAR99 ECCN classification

The substitute part UPL220-025 operates across an extended temperature range (-65°C to 165°C) compared to the main part (-40°C to 155°C), providing broader environmental capability while maintaining all core electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Amphenol RF 031-70235 and Cinch Connectivity Solutions Trompeter UPL220-025 are active products with identical regulatory compliance status. Selection between these parts should be based on the following factors:

Primary Selection Criteria:

• Temperature Environment: The UPL220-025 is suitable for applications requiring operation below -40°C or above 155°C due to its extended operating range of -65°C to 165°C. The 031-70235 is appropriate for standard industrial temperature ranges.
• Cable Compatibility: The 031-70235 is specified for RG-59, Belden 1426A, 1501A, 8281, and 9100 cables. The UPL220-025 is specified for 734A cable. Verify cable group compatibility with your application requirements.
• Packaging and Inventory: The 031-70235 is available in 662 pieces, while the UPL220-025 is available in 914 pieces in bulk packaging.
• Included Components: The 031-70235 includes 3 pieces (connector, contact, ferrule), while the UPL220-025 includes 2 pieces (connector, contact).

Both parts maintain identical electrical performance at 75 ohms, 4 GHz maximum frequency, and 500 V voltage rating, with matching crimp termination and bayonet lock fastening.

Frequently Asked Questions (FAQ)

Q: Can the UPL220-025 be used as a direct replacement for the 031-70235 in all applications?

A: The UPL220-025 is electrically and mechanically compatible with the 031-70235 for applications within the 031-70235 operating temperature range (-40°C to 155°C). Both connectors maintain identical impedance, frequency rating, voltage rating, and termination specifications. However, cable group compatibility must be verified, as the 031-70235 is specified for RG-59 and Belden cable types, while the UPL220-025 is specified for 734A cable.

Q: What is the significance of the extended temperature range on the UPL220-025?

A: The UPL220-025 operates from -65°C to 165°C, compared to the 031-70235 range of -40°C to 155°C. This extended range provides capability for extreme environment applications. If your application operates within the 031-70235 temperature specification, both parts perform identically in this regard.

Q: Are there differences in the included components between these two connectors?

A: Yes. The 031-70235 includes three pieces: one connector, one contact, and one ferrule. The UPL220-025 includes two pieces: one connector and one contact. Verify that your assembly process accommodates the component set provided with your selected part.

Q: Do both connectors meet the same regulatory requirements?

A: Yes. Both the 031-70235 and UPL220-025 are ROHS3 compliant, REACH affected, and carry EAR99 ECCN classification. Both are active products with no known end-of-life status.

Q: What cable types are compatible with each connector?

A: The 031-70235 is specified for RG-59, Belden 1426A, 1501A, 8281, and 9100 cables. The UPL220-025 is specified for 734A cable. Confirm your cable specification matches the connector's cable group before selection.

Q: Are the mating cycle ratings different between these connectors?

A: The 031-70235 specifies 500 mating cycles. The UPL220-025 does not provide a mating cycle specification in the available data. For applications with high mating cycle requirements, the 031-70235 provides a defined specification.

Q: What is the insertion loss difference between these connectors?

A: The 031-70235 specifies 0.2 dB insertion loss. The UPL220-025 does not provide insertion loss specification in the available data. For applications requiring defined insertion loss performance, the 031-70235 provides a measured specification.