Molex 0731385033 BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Molex 0731385033 is an active BNC connector jack designed for 50-ohm coaxial RF applications. This female socket connector features right-angle panel mount through-hole solder termination with bayonet lock fastening. The connector is specified for PCB integration with bulkhead front-side nut mounting. Equivalent and substitute parts are identified based on matching electrical impedance, mechanical mounting configuration, contact termination method, and connector style to ensure functional interchangeability in RF circuit applications.

Substiute Parts

0731385033

MolexIn Stock: 14960731385033 Datasheet

Current PartRFQ

31-5640-1010

Amphenol RFIn Stock: 487431-5640-1010 Datasheet

DirectRFQ

364M595

Winchester InterconnectIn Stock: 1503364M595 Datasheet

DirectRFQ

031-5538

Amphenol RFIn Stock: 1282031-5538 Datasheet

MFR RecommendedRFQ

5226990-6

TE Connectivity AMP ConnectorsIn Stock: 19865226990-6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0731385033 are qualified based on the following core parameters that determine functional interchangeability:

• Connector style (BNC) and type (Jack, Female Socket)
• Electrical impedance (50 Ohms)
• Mounting configuration (Panel Mount, Through Hole, Right Angle with Bulkhead Front Side Nut)
• Termination method (Solder for both contact and shield)
• Fastening mechanism (Bayonet Lock)
• Center contact material (Phosphor Bronze) and plating (Gold)
• Dielectric material (Polypropylene or equivalent RF-grade polymer)
• Mating cycle rating (500 cycles minimum)

All identified substitutes meet these core electrical and mechanical requirements. Variations in frequency rating, operating temperature range, ingress protection, and packaging format do not affect functional substitution capability within standard RF circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and meet RoHS compliance requirements. Selection between substitutes should be based on application-specific requirements not covered by core substitution parameters:

Amphenol RF 31-5640-1010 is suitable for standard RF applications operating up to 1 GHz with operating temperature range of -55°C to 85°C. This part includes board lock features and is available in bulk packaging.

Winchester Interconnect 364M595 supports extended frequency operation to 4 GHz and elevated operating temperature to 165°C. This part includes weatherproof ingress protection and is packaged in trays.

Amphenol RF 031-5538 operates to 1 GHz with -55°C to 85°C temperature range. This part includes board guide and isolated features with ROHS3 compliance and is available in bag packaging. REACH status is affected.

TE Connectivity AMP Connectors 5226990-6 supports 4 GHz frequency operation with -55°C to 85°C operating temperature. This part includes isolated features and uses polymethylpentene dielectric material. Bulk packaging is available with REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts be used interchangeably with the Molex 0731385033 in existing PCB designs?

A: Yes. All substitute parts share identical connector style, impedance, mounting configuration, termination method, and fastening mechanism. PCB footprints and mounting hole patterns are compatible for direct substitution.

Q: What is the difference between the dielectric materials used in these connectors?

A: The Molex 0731385033, Amphenol RF parts, and Winchester part use Polypropylene (PP) dielectric material. The TE Connectivity 5226990-6 uses Polymethylpentene (PMP). Both materials are RF-grade polymers suitable for 50-ohm coaxial applications. Material selection does not affect functional interchangeability.

Q: Which substitute part should be selected for high-frequency applications?

A: The Winchester Interconnect 364M595 and TE Connectivity AMP Connectors 5226990-6 both support operation to 4 GHz, compared to 1 GHz maximum for the Amphenol RF parts. Selection depends on specific frequency requirements of the application.

Q: Are there temperature operating range differences between substitutes?

A: The Winchester Interconnect 364M595 operates from -40°C to 165°C, providing extended high-temperature capability. The Molex 0731385033, Amphenol RF parts, and TE Connectivity part operate from -55°C to 85°C. Selection should match application temperature requirements.

Q: What packaging formats are available for these substitute parts?

A: Molex 0731385033 is supplied in trays. Amphenol RF 31-5640-1010 is available in bulk. Winchester Interconnect 364M595 is supplied in trays. Amphenol RF 031-5538 is available in bags. TE Connectivity 5226990-6 is supplied in bulk. Packaging format does not affect connector performance.

Q: Do all parts meet RoHS compliance requirements?

A: Yes. The Molex 0731385033 and Amphenol RF 031-5538 are ROHS3 compliant. The Amphenol RF 31-5640-1010, Winchester Interconnect 364M595, and TE Connectivity 5226990-6 are RoHS compliant. All parts meet environmental compliance standards.

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

A: All parts, including the Molex 0731385033 and all substitutes, are rated for 500 mating cycles, indicating equivalent mechanical durability and connector life expectancy.