HBC335R744 BNC Coaxial Adapter Jack-to-Jack 75 Ohm Equivalent & Substitute Parts

Part Overview

The HBC335R744 is an adapter coaxial connector manufactured by Winchester Interconnect, designed to connect two BNC Jack female sockets in a straight configuration. This component operates at impedance of 75 Ohms and supports frequencies up to 3 GHz, making it suitable for RF and video signal applications requiring same-series BNC-to-BNC adaptation. The part is currently active in production with 1028 units in stock. Equivalent and substitute parts are identified when they maintain identical electrical specifications, mechanical compatibility, and functional performance characteristics across the critical parameters that define adapter interchangeability.

Substiute Parts

HBC335R744

Winchester InterconnectIn Stock: 1048HBC335R744 Datasheet

Current PartRFQ

6744

Pomona ElectronicsIn Stock: 14326744 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HBC335R744 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Adapter type must be Jack to Jack
• Adapter series must be BNC to BNC
• Center gender configuration must be Female to Female
• Impedance must be 75 Ohms
• Maximum frequency must support 3 GHz operation

Mechanical Compatibility Requirements:

• Style must be Straight
• Mounting type must be Panel Mount with Bulkhead feature
• Fastening type must be Bayonet Lock

Regulatory & Compliance Requirements:

• Product status must be Active
• RoHS compliance status must be current (RoHS Compliant or ROHS3 Compliant)

The substitute part Pomona Electronics 6744 meets all critical electrical and mechanical parameters, confirming functional interchangeability with the HBC335R744 in applications requiring BNC female-to-female coaxial adaptation at 75 Ohm impedance.

Parameter Comparison

Engineering Selection Recommendations

HBC335R744 (Winchester Interconnect) is the primary specification part with active production status and RoHS compliance. Selection is appropriate when Winchester Interconnect supply chain preference, existing inventory, or established vendor relationships are operational requirements.

6744 (Pomona Electronics) is a functionally equivalent substitute that maintains all critical electrical and mechanical parameters. This substitute is appropriate when:

• Pomona Electronics supply chain availability is preferred
• Bulk packaging format aligns with procurement requirements
• The included accessory kit (gasket, lockwasher, nut) provides operational value
• ROHS3 compliance status meets regulatory requirements
• Operating temperature range of -65°C to 55°C satisfies application requirements
• Mating cycle specification of 500 cycles meets mechanical durability requirements

Both parts are active products with current RoHS compliance certifications. Selection between HBC335R744 and 6744 is based on supply availability, packaging requirements, and vendor preference, as electrical and mechanical performance are equivalent across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can the Pomona Electronics 6744 directly replace the Winchester Interconnect HBC335R744 in existing designs?

A: Yes. Both parts are functionally equivalent across all critical electrical and mechanical parameters: Jack-to-Jack BNC female-to-female adapter configuration, 75 Ohm impedance, 3 GHz maximum frequency, straight style, panel mount bulkhead fastening with bayonet lock. Direct substitution is supported without design modification.

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

A: The HBC335R744 packaging format is not specified in the documentation. The 6744 is supplied in Bulk packaging and includes a complete accessory kit: 1 connector, 1 gasket, 1 lockwasher, and 1 nut per unit. Verify packaging requirements against procurement specifications before selection.

Q: Are there compliance differences between HBC335R744 and 6744?

A: Both parts are RoHS compliant. HBC335R744 carries RoHS Compliant status. The 6744 carries ROHS3 Compliant status, which represents current RoHS directive compliance. Both meet regulatory requirements for restricted substance control.

Q: What additional specifications does the 6744 provide that the HBC335R744 does not?

A: The 6744 documentation specifies: Center contact plating (Gold), center contact material (Beryllium Copper), dielectric material (Polytetrafluoroethylene/PTFE), mating cycle rating (500 cycles), and operating temperature range (-65°C to 55°C). The HBC335R744 documentation does not specify these parameters, though the parts are electrically and mechanically equivalent.

Q: Can these adapters be used in high-frequency RF applications?

A: Both adapters support operation up to 3 GHz maximum frequency. Application suitability depends on specific system frequency requirements and insertion loss specifications. Verify that 3 GHz maximum frequency meets application bandwidth requirements.

Q: What is the impedance specification for these BNC adapters?

A: Both HBC335R744 and 6744 are specified at 75 Ohms impedance, standard for video and RF coaxial applications. This impedance must match the connected cable and equipment impedance for proper signal integrity.

Q: Are these adapters suitable for panel-mount installation?

A: Yes. Both parts feature Panel Mount configuration with Bulkhead mounting feature and Bayonet Lock fastening type, enabling secure bulkhead installation in equipment enclosures and panel assemblies.