CS-FFB-MSR Equivalent & Substitute Parts

Part Overview

The CS-FFB-MSR is a 2.92mm coaxial connector jack manufactured by Crystek Corporation, designed for RF applications requiring female socket panel mount solder termination. This connector is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance, repairs, and new designs requiring compatible RF connectivity solutions. The part features beryllium copper center contacts with gold plating and stainless steel construction, suitable for semi-rigid cable applications in the RG-405 cable group.

Substiute Parts

CS-FFB-MSR

Crystek CorporationIn Stock: 1017CS-FFB-MSR Datasheet

Current PartRFQ

SF1521-60044

Amphenol SV MicrowaveIn Stock: 800SF1521-60044 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS-FFB-MSR is based on strict alignment of core RF connector parameters. The primary substitute identified is the SF1521-60044 from Amphenol SV Microwave. This substitution is valid because both connectors share the following critical parameters:

• Connector style: 2.92mm
• Connector type: Jack, Female Socket
• Contact termination: Solder
• Mounting configuration: Panel Mount with Bulkhead Front Side Nut
• Fastening mechanism: Threaded
• Center contact material: Beryllium Copper with Gold plating
• Body material: Stainless Steel
• Single port configuration
• Moisture sensitivity level: 1 (Unlimited)

The SF1521-60044 provides additional specifications including 50 Ohm impedance, 34 GHz maximum frequency, and 500 mating cycles, which represent enhancements over the obsolete CS-FFB-MSR. Both connectors are REACH Unaffected and classified under ECCN EAR99.

Parameter Comparison

Engineering Selection Recommendations

The SF1521-60044 is the qualified substitute for the obsolete CS-FFB-MSR based on the following engineering criteria:

Product Status Alignment: The CS-FFB-MSR is obsolete, while the SF1521-60044 maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance and Certifications: Both connectors are REACH Unaffected and classified as EAR99 under export control regulations. The SF1521-60044 additionally carries ROHS3 compliance, meeting current environmental and regulatory standards.

Mechanical and Electrical Compatibility: Both connectors share identical mechanical interfaces (2.92mm jack, female socket, panel mount bulkhead configuration) and contact materials (beryllium copper with gold plating), ensuring direct mechanical and electrical compatibility in existing designs.

Enhanced Specifications: The SF1521-60044 provides documented electrical performance parameters (50 Ohm impedance, 34 GHz maximum frequency, 500 mating cycles, -55°C to 125°C operating range) that were not specified for the obsolete CS-FFB-MSR, offering improved reliability and performance margin for RF applications.

Frequently Asked Questions (FAQ)

Q: Can the SF1521-60044 be used as a direct replacement for the CS-FFB-MSR?

A: Yes. Both connectors share identical connector style (2.92mm), type (jack, female socket), termination method (solder), and mounting configuration (panel mount bulkhead). The mechanical and electrical interfaces are compatible for direct substitution in existing designs.

Q: What are the key differences between these two connectors?

A: The primary differences are product status and documented specifications. The CS-FFB-MSR is obsolete with unspecified electrical parameters, while the SF1521-60044 is active production with documented 50 Ohm impedance, 34 GHz frequency capability, 500 mating cycles, and -55°C to 125°C operating temperature range. The SF1521-60044 also includes ROHS3 compliance.

Q: Are there packaging differences between the CS-FFB-MSR and SF1521-60044?

A: Yes. The CS-FFB-MSR packaging is not specified, while the SF1521-60044 is supplied in bag packaging. The SF1521-60044 includes 2 pieces (1 connector and 1 nut), compared to the CS-FFB-MSR which includes 3 pieces (1 connector, 1 nut, and 1 washer).

Q: What cable groups are compatible with each connector?

A: The CS-FFB-MSR is specified for RG-405 (.085" semi-rigid) cable group. The SF1521-60044 is specified for RG-402 (.141" flexible) cable group. Cable compatibility must be verified based on your specific application requirements.

Q: Are both connectors suitable for high-frequency RF applications?

A: The SF1521-60044 is documented for operation up to 34 GHz with 50 Ohm impedance, making it suitable for high-frequency RF applications. The CS-FFB-MSR specifications do not include frequency or impedance data, limiting assessment of its high-frequency capability.

Q: What is the moisture sensitivity level for these connectors?

A: Both connectors have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or use.