BNC Jack-to-Jack Coaxial Adapter 75 Ohm (Winchester Interconnect 332A705)

Part Overview

The Winchester Interconnect 332A705 is an in-line coaxial adapter connector that joins two BNC female jack connectors in a straight configuration. This adapter maintains 75-ohm impedance and operates at frequencies up to 2 GHz. The part is actively manufactured and RoHS compliant, with 1041 units currently in stock. Alternative equivalent parts are available from Amphenol RF and Pomona Electronics to support supply chain flexibility and application-specific requirements.

Substiute Parts

332A705

Winchester InterconnectIn Stock: 1085332A705 Datasheet

Current PartRFQ

112446

Amphenol RFIn Stock: 1343112446 Datasheet

DirectRFQ

6737

Pomona ElectronicsIn Stock: 13936737 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Winchester Interconnect 332A705 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Adapter Type: Jack to Jack
• Adapter Series: BNC to BNC
• Center Gender: Female to Female
• Impedance: 75 Ohms
• Style: Straight
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Bayonet Lock

Acceptable Variation Parameters:

• Frequency Maximum: Equal to or greater than 2 GHz
• Center Contact Material: Phosphor Bronze or Beryllium Copper
• Dielectric Material: Polyoxymethylene (POM) Acetal or Polytetrafluoroethylene (PTFE)
• Operating Temperature Range: May exceed the base specification
• Mating Cycles: May exceed the base specification
• RoHS Status: RoHS3 Compliant or RoHS Compliant

Both substitute parts (Amphenol RF 112446 and Pomona Electronics 6737) meet all mandatory matching parameters and are therefore direct functional equivalents for the Winchester Interconnect 332A705.

Parameter Comparison

Engineering Selection Recommendations

All three parts are active products with current manufacturing status and full compliance certifications. Selection between the Winchester Interconnect 332A705 and its substitutes should be based on the following factors:

Winchester Interconnect 332A705: Select this part when the primary requirement is the original manufacturer specification with standard RoHS compliance and no extended operating temperature or frequency requirements beyond 2 GHz.

Amphenol RF 112446: This substitute provides ROHS3 compliance and an extended operating temperature range of -40°C to 85°C. Select this part when enhanced environmental performance and updated RoHS certification are required within the standard frequency range.

Pomona Electronics 6737: This substitute offers the highest frequency capability at 3 GHz, the widest operating temperature range of -65°C to 155°C, and documented mating cycle rating of 500 cycles. Select this part for applications requiring extended frequency bandwidth, extreme temperature operation, or high-cycle reliability specifications.

All three parts maintain identical mechanical and electrical core specifications: 75-ohm impedance, BNC female-to-female jack configuration, straight in-line mounting, and bayonet fastening. Substitution is electrically and mechanically transparent for standard 75-ohm BNC applications.

Frequently Asked Questions (FAQ)

Q: Can Amphenol RF 112446 be used as a direct replacement for Winchester Interconnect 332A705?

A: Yes. Both parts share identical adapter type, series, center gender, impedance, style, mounting type, and fastening specifications. The Amphenol RF part provides equivalent electrical and mechanical function with ROHS3 compliance and an extended operating temperature range of -40°C to 85°C.

Q: What is the primary difference between Pomona Electronics 6737 and the other two parts?

A: Pomona Electronics 6737 operates at a maximum frequency of 3 GHz compared to 2 GHz for the other parts, supports an extended operating temperature range of -65°C to 155°C, and includes a documented mating cycle rating of 500 cycles. The center contact material is Beryllium Copper instead of Phosphor Bronze, and the dielectric uses PTFE instead of POM Acetal.

Q: Are there packaging differences between these parts?

A: Yes. Winchester Interconnect 332A705 packaging is not specified. Amphenol RF 112446 is supplied in bag packaging, and Pomona Electronics 6737 is supplied in bulk packaging. Packaging selection may affect procurement and inventory management but does not alter electrical or mechanical performance.

Q: Which part should be selected for applications operating above 2 GHz?

A: Pomona Electronics 6737 is the only substitute rated for frequencies above 2 GHz, with a maximum frequency of 3 GHz. This part is required for applications exceeding the 2 GHz specification of the Winchester and Amphenol parts.

Q: Do all three parts maintain 75-ohm impedance?

A: Yes. All three parts are specified at 75 ohms impedance and are electrically equivalent for standard 75-ohm coaxial systems.

Q: What is the significance of the RoHS3 compliance on the substitute parts?

A: ROHS3 compliance represents updated regulatory certification compared to standard RoHS compliance. Both Amphenol RF 112446 and Pomona Electronics 6737 meet ROHS3 requirements, indicating compliance with current environmental and hazardous substance restrictions.