Amphenol RF 031-5935-RFX BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Amphenol RF 031-5935-RFX is an active BNC connector jack designed for 50-ohm coaxial cable applications. This female socket connector features panel mount installation with bulkhead front-side nut fastening and crimp termination for both center contact and shield. The connector supports frequencies up to 4 GHz and operates across a temperature range of -65°C to 165°C, making it suitable for RF and microwave signal transmission applications requiring reliable bayonet-lock coupling.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across all critical specifications, ensuring direct functional interchangeability without performance degradation.

Substiute Parts

031-5935-RFX

Amphenol RFIn Stock: 912031-5935-RFX Datasheet

Current PartRFQ

31-342-RFX

Amphenol RFIn Stock: 169631-342-RFX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 031-5935-RFX with equivalent parts is determined by strict adherence to the following critical parameters:

Electrical Parameters:

• Impedance: 50 Ohms (mandatory match)
• Frequency maximum: 4 GHz (mandatory match)
• Voltage rating: 500 V (mandatory match)
• Insertion loss: 0.2 dB (mandatory match)

Mechanical Parameters:

• Connector style: BNC (mandatory match)
• Connector type: Jack, Female Socket (mandatory match)
• Contact termination: Crimp (mandatory match)
• Shield termination: Crimp (mandatory match)
• Mounting type: Panel Mount (mandatory match)
• Mounting feature: Bulkhead - Front Side Nut (mandatory match)
• Fastening type: Bayonet Lock (mandatory match)
• Cable group compatibility: RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907 (mandatory match)

Environmental & Compliance Parameters:

• Operating temperature: -65°C ~ 165°C (mandatory match)
• Mating cycles: 500 (mandatory match)
• RoHS status: ROHS3 Compliant (mandatory match)
• REACH status: REACH Affected (mandatory match)

The substitute part 31-342-RFX meets all critical parameters and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the 031-5935-RFX and 31-342-RFX are active products from Amphenol RF with identical electrical and mechanical specifications. Selection between these parts is determined by packaging and inventory requirements rather than functional performance.

031-5935-RFX is suitable for applications requiring standard packaging configuration with current inventory of 893 pieces available.

31-342-RFX is suitable for applications where bulk packaging is acceptable, with higher inventory availability of 1670 pieces.

Both connectors maintain ROHS3 compliance and REACH affected status, meeting current regulatory requirements. Both support identical operating temperature ranges (-65°C to 165°C), voltage ratings (500 V), and mating cycle specifications (500 cycles). The insertion loss specification of 0.2 dB is identical across both parts, ensuring equivalent RF performance in 50-ohm systems up to 4 GHz.

Frequently Asked Questions (FAQ)

Q: Can 31-342-RFX be used as a direct replacement for 031-5935-RFX?

A: Yes. Both parts are parametric equivalents with identical electrical and mechanical specifications. All critical parameters including impedance, frequency rating, termination type, mounting configuration, and environmental ratings are identical.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging. The 031-5935-RFX uses standard packaging, while the 31-342-RFX uses bulk packaging. All functional and performance specifications are identical.

Q: Are both parts compatible with RG-58 and LMR-195 cables?

A: Yes. Both connectors support the complete cable group: RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907.

Q: What is the maximum frequency rating for these connectors?

A: Both connectors are rated for frequencies up to 4 GHz with 0.2 dB insertion loss.

Q: Are these connectors suitable for high-temperature applications?

A: Yes. Both connectors operate across the temperature range of -65°C to 165°C, supporting both cryogenic and elevated-temperature environments.

Q: Do both parts meet RoHS and REACH compliance requirements?

A: Yes. Both 031-5935-RFX and 31-342-RFX are ROHS3 compliant and REACH affected, meeting current regulatory standards.

Q: What is the mating cycle rating for these connectors?

A: Both connectors are rated for 500 mating cycles, indicating the expected number of connect/disconnect operations before performance degradation.

Q: Can these connectors be used interchangeably in existing designs?

A: Yes. The identical specifications across all electrical, mechanical, and environmental parameters ensure direct interchangeability without design modification or performance impact.