UBJ26-5 BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The UBJ26-5 is a BNC connector jack manufactured by Cinch Connectivity Solutions Trompeter, designed for coaxial RF applications requiring 75 Ohm impedance. This female socket connector features panel mount installation with solder termination and operates across a frequency range up to 4 GHz. The part is currently active in production with 1000 units in stock.

Substitute parts become necessary when 75 Ohm impedance specifications can be relaxed to 50 Ohm systems, or when alternative cable group compatibility is acceptable for the application. The UBJ26-5 maintains full ROHS3 compliance and REACH compliance status, ensuring regulatory alignment across equivalent alternatives.

Substiute Parts

UBJ26-5

Cinch Connectivity Solutions TrompeterIn Stock: 1037UBJ26-5 Datasheet

Current PartRFQ

BJ26-5

Cinch Connectivity Solutions TrompeterIn Stock: 1433BJ26-5 Datasheet

Parametric EquivalentRFQ

BJ26-5A

Cinch Connectivity Solutions TrompeterIn Stock: 789BJ26-5A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UBJ26-5 is determined by the following critical parameters:

Maintained Parameters (Must Match):

• Connector Style: BNC
• Connector Type: Jack, Female Socket
• Contact Termination: Solder
• Shield Termination: Wrench Clamp
• Mounting Type: Panel Mount
• Mounting Feature: Bulkhead - Front Side Nut
• Fastening Type: Bayonet Lock
• Frequency - Max: 4 GHz
• Operating Temperature: -65°C ~ 165°C
• Voltage Rating: 500 V
• Body Material: Brass
• Body Finish: Nickel
• Center Contact Plating: Gold
• RoHS Status: ROHS3 Compliant

Variable Parameters (Allowed Differences):

• Impedance: 75 Ohms (main part) vs. 50 Ohms (substitutes)
• Cable Group: RG-174 (main part) vs. RG-174 or RG-196 (substitutes)
• Manufacturer Part Number: Different base numbers (UBJ vs. BJ26)

The substitute parts BJ26-5 and BJ26-5A are classified as parametric equivalents because they maintain all mechanical, electrical, and environmental specifications while operating at 50 Ohm impedance instead of 75 Ohms. This impedance difference is the primary distinguishing factor for system-level compatibility assessment.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status with full ROHS3 and REACH compliance. Selection between UBJ26-5 and its substitutes BJ26-5 or BJ26-5A depends on system impedance requirements:

UBJ26-5 Selection: Required for 75 Ohm RF systems. Maintains highest inventory availability at 1000 units.

BJ26-5 Selection: Suitable for 50 Ohm RF systems with RG-174 cable compatibility. Provides highest inventory level among substitutes at 1390 units.

BJ26-5A Selection: Suitable for 50 Ohm RF systems with RG-196 cable compatibility. Inventory availability at 723 units.

All parts share identical mechanical mounting specifications, environmental ratings, and regulatory compliance status. The choice between substitutes is determined by impedance matching requirements and cable group compatibility within the target application.

Frequently Asked Questions (FAQ)

Q: Can BJ26-5 or BJ26-5A be used as direct replacements for UBJ26-5?

A: Direct replacement is not applicable. The UBJ26-5 operates at 75 Ohm impedance while BJ26-5 and BJ26-5A operate at 50 Ohm impedance. Substitution is only valid when the system design permits 50 Ohm impedance operation.

Q: What is the difference between BJ26-5 and BJ26-5A?

A: Both operate at 50 Ohm impedance with identical mechanical and electrical specifications. The primary difference is cable group compatibility: BJ26-5 supports RG-174 cable, while BJ26-5A supports RG-196 cable. Selection depends on the cable type specified in the application.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts share identical panel mount bulkhead specifications, solder termination, wrench clamp shield termination, and bayonet lock fastening. Physical installation is identical across all variants.

Q: Do all parts meet the same environmental and compliance requirements?

A: Yes. All three parts operate across -65°C to 165°C temperature range, maintain 500 V voltage rating, and hold ROHS3 and REACH compliance status.

Q: Which part should be selected for new designs?

A: Selection is based on system impedance specification. For 75 Ohm systems, use UBJ26-5. For 50 Ohm systems, use BJ26-5 (RG-174 cable) or BJ26-5A (RG-196 cable) based on cable group requirements.