SMA Connector Receptacle 4850 - Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 4850 is an SMA connector receptacle, female socket rated for 50 ohms impedance with panel mount solder cup termination. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The 4850 operates across a frequency range up to 18 GHz with an operating temperature range of -65°C to 165°C and a voltage rating of 335 V. Substitute parts must maintain electrical compatibility (50 ohm impedance, SMA connector style, female socket configuration) and mechanical compatibility (panel mount, flange mounting feature, threaded fastening).

Substiute Parts

4850

Pomona ElectronicsIn Stock: 7684850 Datasheet

Current PartRFQ

142-0701-631

Cinch Connectivity SolutionsIn Stock: 1345142-0701-631 Datasheet

DirectRFQ

901-9215

Amphenol RFIn Stock: 909901-9215 Datasheet

SimilarRFQ

HRM-301S

Hirose Electric Co LtdIn Stock: 1148HRM-301S Datasheet

SimilarRFQ

HRM-306(09)

Hirose Electric Co LtdIn Stock: 1184HRM-306(09) Datasheet

SimilarRFQ

HRM-306S

Hirose Electric Co LtdIn Stock: 1124HRM-306S Datasheet

SimilarRFQ

1-1478963-0

TE Connectivity AMP ConnectorsIn Stock: 602191-1478963-0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Pomona Electronics 4850 are classified based on strict adherence to the following critical parameters:

Primary Compatibility Criteria:

• Connector Style: SMA (mandatory)
• Connector Type: Receptacle, Female Socket (mandatory)
• Impedance: 50 Ohms (mandatory)
• Mounting Type: Panel Mount with Flange (mandatory)
• Fastening Type: Threaded (mandatory)
• Contact Termination: Solder Cup or Solder (mandatory)
• Shield Termination: Solder (mandatory)
• Dielectric Material: Polytetrafluoroethylene (PTFE) (mandatory)
• Center Contact Material: Beryllium Copper (mandatory)

Secondary Compatibility Parameters:

• Frequency - Max: 18 GHz or higher
• Operating Temperature: Must encompass or exceed -65°C to 165°C range
• Voltage Rating: 335 V or higher
• Body Material: Stainless Steel preferred for consistency
• RoHS Compliance: ROHS3 or equivalent

Substitute parts are grouped into three categories: Direct Manufacturer Equivalents (identical electrical and mechanical specifications), Similar Manufacturer Parts (equivalent function with minor parameter variations), and Parametric Equivalents (matching all critical parameters with acceptable variations in secondary specifications).

Parameter Comparison

Engineering Selection Recommendations

Direct Manufacturer Equivalent - TE Connectivity 1-1478963-0: The TE Connectivity 1-1478963-0 is a parametric equivalent offering the closest match to the Pomona 4850. It maintains identical electrical specifications (50 ohm impedance, 18 GHz frequency rating, solder cup termination) and mechanical configuration (SMA receptacle, panel mount flange, threaded fastening). The part is RoHS compliant and currently in active production with substantial inventory availability (60,200 pcs). This part is the primary recommendation for direct replacement in new designs and system maintenance.

Primary Substitute - Cinch Connectivity Solutions 142-0701-631: The Cinch 142-0701-631 provides full electrical and mechanical compatibility with the 4850. Although classified as a Jack rather than Receptacle in nomenclature, it maintains identical functional specifications: 50 ohm impedance, 18 GHz frequency rating, solder cup termination, and panel mount configuration. The part is ROHS3 compliant and actively produced. Inventory availability is 1,280 pcs. This part is suitable for direct substitution where connector nomenclature does not impose design constraints.

Primary Substitute - Amphenol RF 901-9215: The Amphenol RF 901-9215 meets all critical electrical and mechanical parameters: SMA receptacle, 50 ohm impedance, 18 GHz frequency rating, solder cup termination, and panel mount flange configuration. The part is ROHS3 compliant and actively produced with 872 pcs in inventory. This part is suitable for direct substitution in applications where the original 4850 is specified.

Secondary Substitute - Hirose HRM-301S: The Hirose HRM-301S is an active production alternative offering SMA receptacle configuration with 50 ohm impedance and panel mount flange mounting. The part maintains solder termination and PTFE dielectric material. Operating temperature range (-55°C to 125°C) is narrower than the 4850 (-65°C to 165°C), making this part suitable only for applications operating within the HRM-301S temperature envelope. Mating cycle rating of 1,000 exceeds the 4850 specification. This part is suitable for substitution in temperature-constrained applications.

Secondary Substitute - Hirose HRM-306(09) and HRM-306S: Both Hirose HRM-306(09) and HRM-306S provide SMA receptacle configuration with 50 ohm impedance and panel mount flange mounting. These parts feature extended insulation and 1,000 mating cycles. Frequency rating is limited to 12.4 GHz (compared to 4850's 18 GHz), and operating temperature range is -55°C to 85°C. These parts are suitable for substitution only in applications operating below 12.4 GHz and within the specified temperature range. The HRM-306S is ROHS3 compliant; the HRM-306(09) is RoHS compliant.

Connector Type Nomenclature Note: Cinch 142-0701-631 and Amphenol RF 901-9215 are designated as "Jack" connectors in manufacturer documentation, while the Pomona 4850 and Hirose parts are designated as "Receptacle" connectors. In SMA connector terminology, both designations refer to female socket configurations and are electrically and mechanically interchangeable for panel mount applications.

Frequently Asked Questions (FAQ)

Q: Can the Cinch 142-0701-631 or Amphenol RF 901-9215 be used as direct replacements for the Pomona 4850?

A: Yes. Both parts maintain identical electrical specifications (50 ohm impedance, 18 GHz frequency rating) and mechanical configuration (SMA female socket, panel mount flange, threaded fastening, solder cup termination). The nomenclature difference between "Jack" and "Receptacle" does not affect functional compatibility in panel mount applications.

Q: What is the primary limitation of the Hirose HRM-306(09) and HRM-306S compared to the Pomona 4850?

A: The Hirose parts have a maximum frequency rating of 12.4 GHz, compared to the 4850's 18 GHz rating. These parts are suitable only for applications operating below 12.4 GHz. Additionally, the operating temperature range (-55°C to 85°C) is narrower than the 4850 (-65°C to 165°C).

Q: Is the TE Connectivity 1-1478963-0 suitable for all applications currently using the Pomona 4850?

A: The TE Connectivity 1-1478963-0 matches all critical electrical and mechanical parameters of the 4850. Operating temperature specification is not provided for the TE part; applications requiring the full -65°C to 165°C range should confirm TE Connectivity specifications with the manufacturer.

Q: What is the difference between the Hirose HRM-301S and the HRM-306(09)/HRM-306S?

A: The HRM-301S operates at frequencies up to 18 GHz (matching the 4850), while the HRM-306(09) and HRM-306S are limited to 12.4 GHz. The HRM-306 series includes extended insulation features. Operating temperature ranges differ: HRM-301S operates -55°C to 125°C; HRM-306 series operates -55°C to 85°C. All three Hirose parts feature 1,000 mating cycles.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed are RoHS compliant. The Pomona 4850, Cinch 142-0701-631, Amphenol RF 901-9215, and Hirose HRM-306S are ROHS3 compliant. The Hirose HRM-301S and HRM-306(09) are RoHS compliant. Compliance status meets regulatory requirements for electronic component procurement.

Q: What inventory availability should be considered when selecting a substitute?

A: TE Connectivity 1-1478963-0 offers the highest inventory availability at 60,200 pcs. Hirose parts (HRM-301S: 1,083 pcs; HRM-306(09): 1,121 pcs; HRM-306S: 1,029 pcs) and Cinch 142-0701-631 (1,280 pcs) provide moderate availability. Amphenol RF 901-9215 has 872 pcs available. Inventory levels should be confirmed at time of procurement.

Q: Can the Pomona 4850 be used interchangeably with the substitute parts in existing designs?

A: Yes, all listed substitute parts are mechanically and electrically compatible with the Pomona 4850 for panel mount SMA receptacle applications. Physical dimensions and mounting configurations are equivalent. Connector mating is compatible across all parts listed.