Amphenol RF 031-70238 BNC Connector Plug 75 Ohm Crimp

Part Overview

The Amphenol RF 031-70238 is a BNC connector plug with male pin configuration, designed for 75 ohm coaxial cable termination using crimp contact technology. This component is classified as not for new designs, indicating its legacy status within Amphenol RF's product portfolio. The connector operates at frequencies up to 4 GHz and accommodates AT&T 735, 735A, and Belden 735A1 cable groups. Current inventory of 1100 pieces is available in bulk packaging.

Identification of equivalent and substitute parts is necessary due to the product's legacy classification and to support design flexibility across multiple cable group specifications and manufacturing sources.

Substiute Parts

031-70238

Amphenol RFIn Stock: 1177031-70238 Datasheet

Current PartRFQ

112950

Amphenol RFIn Stock: 951112950 Datasheet

DirectRFQ

413589-6

TE Connectivity AMP ConnectorsIn Stock: 843413589-6 Datasheet

SimilarRFQ

5413589-6

TE Connectivity AMP ConnectorsIn Stock: 8895413589-6 Datasheet

SimilarRFQ

UPL220-009

Cinch Connectivity Solutions TrompeterIn Stock: 1247UPL220-009 Datasheet

SimilarRFQ

UPL220-013

Cinch Connectivity Solutions TrompeterIn Stock: 1662UPL220-013 Datasheet

SimilarRFQ

UPL220-020

Cinch Connectivity Solutions TrompeterIn Stock: 1137UPL220-020 Datasheet

SimilarRFQ

UPL220-025

Cinch Connectivity Solutions TrompeterIn Stock: 1015UPL220-025 Datasheet

SimilarRFQ

UPL220-026

Cinch Connectivity Solutions TrompeterIn Stock: 1249UPL220-026 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 031-70238 is determined by strict equivalence across the following core parameters:

Primary Substitution Criteria:

• Connector Style: BNC
• Connector Type: Plug, Male Pin
• Impedance: 75 Ohms
• Contact Termination: Crimp
• Shield Termination: Crimp
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Bayonet Lock
• Voltage Rating: 500 V
• Mating Cycles: 500

Secondary Compatibility Factors:

• Frequency capability (minimum 4 GHz required for full compatibility)
• Operating temperature range (minimum -65°C ~ 165°C required for full compatibility)
• Dielectric material (PTFE preferred for electrical performance consistency)
• RoHS compliance status (ROHS3 Compliant preferred)

Substitute parts are grouped into two categories: direct manufacturer equivalents from Amphenol RF and functionally equivalent alternatives from TE Connectivity and Cinch Connectivity Solutions. Cable group compatibility varies by specific part number and must be verified against application requirements.

Parameter Comparison

Engineering Selection Recommendations

Amphenol RF 112950 (Direct Manufacturer Equivalent)

The 112950 is an active product from Amphenol RF with identical electrical specifications to the 031-70238. Both parts share 75 ohm impedance, 4 GHz frequency capability, PTFE dielectric, and ROHS3 compliance. The primary distinction is product status: 112950 is active while 031-70238 is not for new designs. The 112950 is the preferred choice for new applications requiring Amphenol RF sourcing. Operating temperature specification is not provided for 112950; applications requiring confirmed temperature performance should reference the 031-70238 specification of -65°C ~ 165°C.

Cinch Connectivity Solutions Trompeter UPL220 Series (UPL220-009, UPL220-013, UPL220-020, UPL220-025, UPL220-026)

The UPL220 series from Cinch Connectivity Solutions provides full electrical and mechanical equivalence to the 031-70238. All five variants maintain 75 ohm impedance, 4 GHz frequency capability, -65°C ~ 165°C operating temperature range, PTFE dielectric, and 500 V voltage rating. All are active products with ROHS3 compliance (UPL220-020 is RoHS Compliant). Cable group compatibility varies by part number: UPL220-009 for Belden 8218/YR23023/Essex 21-597; UPL220-013 for RG-59; UPL220-020 for Belden 9248; UPL220-025 for 734A; UPL220-026 for 735A. Selection among these variants depends on specific cable group requirements.

TE Connectivity AMP Connectors 413589-6 and 5413589-6 (Conditional Equivalence)

Both TE Connectivity variants maintain 75 ohm impedance and 500 V voltage rating but operate at reduced frequency capability (2 GHz maximum) and narrower temperature range (-55°C ~ 85°C) compared to the 031-70238. The 413589-6 uses zinc body material with polyethylene dielectric and is RoHS non-compliant. The 5413589-6 uses brass body material with unspecified dielectric and is RoHS Compliant. These parts are suitable only for applications where 2 GHz frequency and -55°C ~ 85°C temperature range are acceptable. The 5413589-6 is preferred over 413589-6 due to RoHS compliance and brass body material.

Frequently Asked Questions (FAQ)

Q: Can the 031-70238 be directly replaced with the Amphenol RF 112950?

A: Yes. Both parts are BNC 75 ohm crimp plugs with identical connector style, type, impedance, termination method, mounting configuration, and fastening mechanism. Both support 4 GHz frequency operation and 500 V voltage rating. The 112950 is the active product equivalent and is suitable for direct substitution. Operating temperature specification should be confirmed for the 112950 if this parameter is critical to the application.

Q: What is the difference between the various UPL220 part numbers?

A: All UPL220 variants (UPL220-009, UPL220-013, UPL220-020, UPL220-025, UPL220-026) are electrically and mechanically identical BNC 75 ohm crimp plugs. The numeric suffix designates the cable group for which each connector is optimized. Selection is based on the specific coaxial cable type used in the application. All variants are active products with full frequency and temperature capability equivalent to the 031-70238.

Q: Are the TE Connectivity parts fully equivalent to the 031-70238?

A: The TE Connectivity 413589-6 and 5413589-6 are not fully equivalent. Both operate at 2 GHz maximum frequency and -55°C ~ 85°C temperature range, which are reduced compared to the 031-70238 specifications of 4 GHz and -65°C ~ 165°C. These parts are suitable only for applications where the reduced frequency and temperature specifications are acceptable. The 5413589-6 is preferred over 413589-6 due to RoHS compliance.

Q: What packaging differences exist among these parts?

A: The 031-70238 is supplied in bulk packaging. The 112950 is supplied in bag packaging. The UPL220 series is supplied in bulk packaging. The TE Connectivity parts do not specify packaging type. Packaging format may affect handling, storage, and inventory management but does not affect electrical or mechanical performance.

Q: Which substitute part has the highest inventory availability?

A: The UPL220-013 has the highest inventory at 1558 pieces. The UPL220-009 has 1162 pieces, UPL220-026 has 1153 pieces, UPL220-020 has 1082 pieces, and UPL220-025 has 914 pieces. The original 031-70238 has 1100 pieces in stock.

Q: Do all substitute parts maintain ROHS3 compliance?

A: The 031-70238, 112950, UPL220-009, UPL220-013, UPL220-025, and UPL220-026 are ROHS3 Compliant. The UPL220-020 is RoHS Compliant (not specifically ROHS3). The TE Connectivity 413589-6 is RoHS non-compliant. The TE Connectivity 5413589-6 is RoHS Compliant. Applications requiring ROHS3 compliance should select from the Amphenol RF or Cinch Connectivity Solutions parts.

Q: What is the insertion loss specification for these connectors?

A: The 031-70238 specifies 0.2 dB insertion loss. The TE Connectivity 413589-6 and 5413589-6 specify 0.15 dB insertion loss. The Amphenol RF 112950 and all UPL220 variants do not specify insertion loss values. For applications where insertion loss specification is required, the 031-70238 or TE Connectivity variants should be referenced.