BNC to SMA Coaxial Adapter Connector 3319505

Part Overview

The Winchester Interconnect 3319505 is an in-line coaxial adapter connector that converts between BNC plug (male pin) and SMA jack (female socket) interfaces. This adapter maintains 50-ohm impedance across the RF signal path and operates across a frequency range up to 1 GHz. The component is classified as Active product status and is RoHS Compliant, making it suitable for modern electronic assembly environments. Alternative equivalent parts are necessary when Winchester Interconnect 3319505 stock is unavailable, when higher frequency performance is required, or when specific material compositions or operating temperature ranges are needed for particular applications.

Substiute Parts

3319505

Winchester InterconnectIn Stock: 12133319505 Datasheet

Current PartRFQ

242103

Amphenol RFIn Stock: 1147242103 Datasheet

SimilarRFQ

4289

Pomona ElectronicsIn Stock: 25074289 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent and substitute parts for the Winchester Interconnect 3319505 are determined by strict adherence to the following core parameters:

Mandatory Matching Parameters:

• Adapter Type: Plug to Jack
• Adapter Series: BNC to SMA
• Convert From: BNC Plug, Male Pin
• Convert To: SMA Jack, Female Socket
• Impedance: 50 Ohms
• Style: Straight
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Bayonet Lock, Threaded
• Center Contact Plating: Gold

All substitute parts listed below satisfy these mandatory parameters. Variations in secondary parameters such as frequency maximum, body material, body finish, center contact material, dielectric material, and operating temperature range are documented to enable selection based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

All three parts listed—Winchester Interconnect 3319505, Amphenol RF 242103, and Pomona Electronics 4289—are Active product status and meet the mandatory functional and mechanical parameters for BNC-to-SMA coaxial adapter applications at 50-ohm impedance.

Compliance Considerations:

• Winchester 3319505: RoHS Compliant
• Amphenol RF 242103: ROHS3 Compliant, REACH Affected
• Pomona Electronics 4289: ROHS3 Compliant, REACH Unaffected

Selection between these parts is based on application-specific requirements:

Frequency Performance: The Winchester 3319505 operates to 1 GHz maximum frequency. The Amphenol RF 242103 extends to 4 GHz. The Pomona Electronics 4289 supports frequencies up to 12.4 GHz and is suitable for higher-frequency RF applications.

Operating Temperature Range: The Winchester 3319505 operates from -55°C to 100°C. Both Amphenol RF 242103 and Pomona Electronics 4289 operate from -65°C to 165°C, providing extended temperature capability for demanding environments.

Material Composition: Winchester 3319505 uses brass body with nickel finish. Amphenol RF 242103 uses brass body with gold finish and phosphor bronze center contact. Pomona Electronics 4289 uses beryllium copper body with gold finish, offering enhanced mechanical durability and conductivity.

Packaging: Winchester 3319505 packaging is not specified. Amphenol RF 242103 is supplied in bag packaging. Pomona Electronics 4289 is supplied in bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol RF 242103 or Pomona Electronics 4289 be used as direct replacements for the Winchester Interconnect 3319505?

A: Yes. Both parts satisfy all mandatory substitution parameters: BNC plug to SMA jack adapter configuration, 50-ohm impedance, straight style, free-hanging mounting, bayonet lock with threaded fastening, and gold-plated center contact. Functional compatibility is confirmed at the interface level.

Q: What is the difference in frequency capability between these three adapters?

A: The Winchester 3319505 operates to 1 GHz maximum frequency. The Amphenol RF 242103 operates to 4 GHz. The Pomona Electronics 4289 operates to 12.4 GHz. Selection depends on the maximum frequency of the RF signals being transmitted through the adapter.

Q: Are there temperature limitations I should consider?

A: The Winchester 3319505 operates from -55°C to 100°C. The Amphenol RF 242103 and Pomona Electronics 4289 both operate from -65°C to 165°C. If your application requires operation below -55°C or above 100°C, the Amphenol or Pomona parts are required.

Q: What is the significance of the body material differences?

A: Winchester 3319505 uses brass with nickel finish. Amphenol RF 242103 uses brass with gold finish. Pomona Electronics 4289 uses beryllium copper with gold finish. Beryllium copper provides superior mechanical durability and electrical conductivity compared to brass. Material selection affects long-term reliability in high-cycle mating applications.

Q: Does packaging affect compatibility?

A: Packaging does not affect electrical or mechanical compatibility. Winchester 3319505 packaging is not specified. Amphenol RF 242103 is supplied in bag packaging. Pomona Electronics 4289 is supplied in bulk packaging. Packaging selection is based on inventory management and handling requirements, not functional performance.

Q: Are all three parts RoHS compliant?

A: Yes. Winchester 3319505 is RoHS Compliant. Amphenol RF 242103 is ROHS3 Compliant. Pomona Electronics 4289 is ROHS3 Compliant. All parts meet RoHS requirements for lead-free and restricted substance compliance.

Q: What is the difference between RoHS and ROHS3 compliance?

A: Both designations indicate compliance with RoHS directives. ROHS3 represents compliance with the most current RoHS 3 directive. All three parts meet modern RoHS requirements for restricted substance elimination.

Q: Can I use the Pomona Electronics 4289 in a 1 GHz application?

A: Yes. The Pomona Electronics 4289 operates to 12.4 GHz maximum frequency, which includes all frequencies up to and including 1 GHz. Higher frequency capability does not limit operation at lower frequencies.

Q: What does "Center Gender: Female to Male" mean?

A: This indicates the gender conversion at the center contact. The BNC plug side (input) has a male center pin. The SMA jack side (output) has a female center socket. The adapter converts from male to female center contact configuration.