Molex 0731315005 BNC Vertical PCB Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0731315005 is an active BNC connector jack designed for 50-ohm coaxial RF applications requiring panel-mount installation. This female socket connector utilizes solder termination for both center contact and shield, making it suitable for PCB integration in RF signal distribution systems. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter set.

Substiute Parts

0731315005

MolexIn Stock: 8240731315005 Datasheet

Current PartRFQ

031-5539

Amphenol RFIn Stock: 1042031-5539 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Amphenol RF 031-5539 qualifies as a direct substitute based on the following alignment of critical parameters:

• Connector Style & Type: Both parts are BNC jack female sockets
• Impedance: Both maintain 50-ohm characteristic impedance
• Termination Method: Both use solder termination for center contact and shield
• Mounting Configuration: Both are panel-mount with bayonet lock fastening
• Electrical Compliance: Both are ROHS3 compliant with MSL 1 rating
• Port Count: Both feature single-port configuration

The 031-5539 introduces additional specifications (operating temperature range, voltage rating, mating cycles, and insertion loss) that were not provided for the main part but do not conflict with substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0731315005 and Amphenol RF 031-5539 maintain active product status and full ROHS3 compliance. Selection between these parts should be based on:

• Packaging Format: Molex 0731315005 is supplied in tray packaging; Amphenol RF 031-5539 is supplied in bulk packaging
• Mounting Hole Configuration: Amphenol RF 031-5539 explicitly includes through-hole mounting capability in addition to panel-mount configuration
• Inventory Availability: Molex 0731315005 has 734 units in stock; Amphenol RF 031-5539 has 1027 units in stock

Both parts satisfy the core electrical and mechanical requirements for 50-ohm BNC panel-mount solder-terminated applications.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 031-5539 be used as a direct replacement for the Molex 0731315005?

A: Yes. Both connectors share identical BNC jack female socket configuration, 50-ohm impedance, solder termination for center contact and shield, panel-mount installation, and bayonet lock fastening. Both maintain ROHS3 compliance and MSL 1 rating.

Q: What is the difference in mounting between these two parts?

A: The Molex 0731315005 is specified as panel mount with bulkhead front-side nut installation. The Amphenol RF 031-5539 supports both panel mount and through-hole mounting configurations, providing additional installation flexibility.

Q: Are there packaging differences between these parts?

A: Yes. The Molex 0731315005 is supplied in tray packaging, while the Amphenol RF 031-5539 is supplied in bulk packaging. Packaging selection may affect handling, storage, and ordering quantities.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the Molex 0731315005 and Amphenol RF 031-5539 are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level) rating.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching connector style (BNC), connector type (jack female socket), impedance (50 ohms), termination method (solder for both center and shield), mounting type (panel mount), fastening mechanism (bayonet lock), and compliance certifications (ROHS3, MSL 1).