Amphenol RF 31-5369 BNC Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 31-5369 is an active BNC connector plug designed for 50-ohm coaxial cable applications. This male pin connector features a push-on contact termination with twist-on shield termination, suitable for free-hanging in-line mounting configurations. The connector operates across a frequency range up to 4 GHz and is compatible with standard coaxial cable groups including RG-59, RG-59B, RG-62, RG-140, RG-210, and Belden cable variants 8241, 8263, 8279, and 9209.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector's critical specifications. Alternative models may be required due to packaging availability, inventory considerations, or specific compliance certifications.

Substiute Parts

31-5369

Amphenol RFIn Stock: 88631-5369 Datasheet

Current PartRFQ

31-5136

Amphenol RFIn Stock: 87331-5136 Datasheet

Parametric EquivalentRFQ

31-5136-RFX

Amphenol RFIn Stock: 104631-5136-RFX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 31-5369 are determined by equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Connector style: BNC
• Connector type: Plug, Male Pin
• Impedance: 50 Ohms
• Frequency maximum: 4 GHz
• Voltage rating: 500 V
• Insertion loss: 0.2 dB

Mechanical Equivalence Criteria:

• Contact termination: Push On
• Shield termination: Twist On
• Mounting type: Free Hanging (In-Line)
• Fastening type: Bayonet Lock
• Operating temperature range: -65°C to 165°C
• Mating cycles: 500
• Cable group compatibility: RG-59, 59B, 62, 140, 210, Belden 8241, 8263, 8279, 9209

Identified Substitutes:

The 31-5369 maintains full parametric equivalence with parts 31-5136 and 31-5136-RFX. These substitutes share identical electrical and mechanical specifications with the main part. Variations exist in packaging format, center contact plating material, dielectric material composition, and RoHS compliance revision level. All three parts are active products with RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

All three parts—31-5369, 31-5136, and 31-5136-RFX—are active products with full RoHS compliance. The 31-5136 and 31-5136-RFX carry ROHS3 compliance certification, representing the current regulatory standard. The 31-5369 carries RoHS Compliant status.

Selection Basis:

The 31-5369 and 31-5136 are functionally equivalent with identical electrical performance and mechanical specifications. The primary difference is center contact plating material: the 31-5369 uses tin plating, while the 31-5136 uses gold plating. Both materials satisfy the 500-volt rating and 0.2 dB insertion loss specification.

The 31-5136-RFX provides an alternative with gold-plated center contacts and a different dielectric material composition (polyoxymethylene acetal instead of PTFE). This part maintains all critical electrical parameters and operating specifications.

Selection among these three parts should be based on:

• Packaging requirements (bulk versus other formats)
• Inventory availability
• Specific compliance revision requirements (RoHS versus ROHS3)
• Material composition preferences for the dielectric and contact plating

Frequently Asked Questions (FAQ)

Q: Can the 31-5136 directly replace the 31-5369 in existing applications?

A: Yes. Both parts maintain identical electrical specifications (50 ohms, 4 GHz maximum frequency, 0.2 dB insertion loss) and mechanical specifications (BNC plug, push-on contact termination, twist-on shield termination, free-hanging mounting). The difference in center contact plating material (gold versus tin) does not affect functional compatibility within the specified operating parameters.

Q: What is the difference between the 31-5136 and 31-5136-RFX?

A: Both parts feature gold-plated center contacts and are ROHS3 compliant. The primary difference is the dielectric material: the 31-5136 uses polytetrafluoroethylene (PTFE), while the 31-5136-RFX uses polyoxymethylene (POM) acetal. Both materials maintain the specified electrical performance and operating temperature range of -65°C to 165°C.

Q: Are all three parts compatible with the same cable groups?

A: Yes. All three parts are compatible with RG-59, RG-59B, RG-62, RG-140, RG-210, and Belden cable variants 8241, 8263, 8279, and 9209.

Q: What packaging formats are available for these substitutes?

A: The 31-5369 is available in standard packaging. The 31-5136 and 31-5136-RFX are available in bulk packaging format.

Q: Do all three parts meet current RoHS requirements?

A: Yes. The 31-5369 is RoHS Compliant. The 31-5136 and 31-5136-RFX are ROHS3 Compliant, representing the current regulatory standard.

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

A: All three parts operate at a maximum frequency of 4 GHz with an insertion loss of 0.2 dB.

Q: Are there any differences in mating cycle ratings?

A: No. All three parts are rated for 500 mating cycles.

Q: Can these connectors be used in high-temperature applications?

A: Yes. All three parts are rated for operating temperatures from -65°C to 165°C, supporting both cryogenic and elevated-temperature environments within this range.