Amphenol RF 901-9531-2SF SMA Connector Plug Equivalent & Substitute Parts

Part Overview

The Amphenol RF 901-9531-2SF is an SMA connector plug designed for RF coaxial applications requiring 50-ohm impedance termination. This male pin connector features right-angle solder termination and is compatible with standard RG-series cable groups including RG-58, RG-141, and LMR-195. The part is currently in active product status with 1095 units in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory depletion, or when design requirements permit operation within alternative electrical and mechanical specifications. The 901-9531-2SF has one identified equivalent substitute that maintains core functional compatibility while operating within defined parameter tolerances.

Substiute Parts

901-9531-2SF

Amphenol RFIn Stock: 1126901-9531-2SF Datasheet

Current PartRFQ

1056456-1

TE Connectivity AMP ConnectorsIn Stock: 8951056456-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 901-9531-2SF is determined by strict alignment with the following core parameters:

Mandatory Matching Parameters:

• Connector Style: SMA
• Connector Type: Plug, Male Pin
• Contact Termination: Solder
• Shield Termination: Crimp
• Impedance: 50 Ohms
• Mounting Type: Free Hanging (In-Line), Right Angle
• Fastening Type: Threaded
• Dielectric Material: Polytetrafluoroethylene (PTFE)
• Center Contact Plating: Gold

Allowable Parameter Variations:

• Frequency - Max: Substitute must support minimum 12.4 GHz (lower than primary part's 18 GHz is acceptable for applications not requiring full bandwidth)
• Voltage Rating: Substitute must support minimum 250 V (lower than primary part's 500 V is acceptable for applications within reduced voltage envelope)
• Cable Group: Substitute may support different cable groups provided primary cable compatibility is maintained or application permits alternative cable selection
• Center Contact Material: Brass or Beryllium Copper both acceptable for solder termination
• Mating Cycles: 500 cycles minimum required

The TE Connectivity AMP Connectors part 1056456-1 qualifies as a direct substitute based on these criteria, with the understanding that applications must operate within its reduced frequency and voltage specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (901-9531-2SF): The Amphenol RF 901-9531-2SF is the recommended selection for new designs and applications requiring maximum operational flexibility. This part is in active product status, ensuring long-term availability and supply chain stability. The part meets ROHS3 compliance, representing the current regulatory standard. With 1095 units in current inventory, procurement lead times are minimal. The 18 GHz maximum frequency and 500 V voltage rating provide operational headroom for demanding RF applications.

Substitute Part Selection (1056456-1): The TE Connectivity AMP Connectors 1056456-1 is a functional equivalent for applications where frequency operation does not exceed 12.4 GHz and voltage stress remains below 250 V. This part is classified as obsolete, indicating discontinued manufacturing and limited remaining inventory (797 units). Selection of this substitute is appropriate only when the primary part is unavailable and application parameters fall within the substitute's electrical envelope. The RG-316 cable group compatibility differs from the primary part; applications using RG-58 or LMR-195 cables must evaluate cable substitution feasibility.

Compliance Considerations: Both parts maintain REACH compliance and EAR99 ECCN classification. The primary part's ROHS3 status provides superior compliance positioning for applications subject to evolving environmental regulations. Moisture sensitivity level 1 (unlimited) on both parts indicates no special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1056456-1 be used as a direct replacement in all applications currently using the Amphenol RF 901-9531-2SF?

A: No. The substitute part operates at reduced maximum frequency (12.4 GHz versus 18 GHz) and reduced voltage rating (250 V versus 500 V). Applications must operate within both of these reduced specifications. Additionally, the substitute supports RG-316 cable exclusively, while the primary part supports RG-58, RG-141, LMR-195, and other cable groups. Cable compatibility must be evaluated for each application.

Q: What is the significance of the different center contact materials (Beryllium Copper versus Brass)?

A: Both materials are acceptable for solder termination applications and provide adequate electrical conductivity and mechanical durability. Beryllium Copper offers superior spring characteristics and contact wear resistance, while Brass provides cost-effective performance for standard applications. Material selection does not affect substitution eligibility provided both parts maintain identical impedance, frequency, and voltage specifications within the application's operating envelope.

Q: Why is the TE Connectivity part classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and removed the part from active product lines. Remaining inventory is limited and will not be replenished. The 797 units currently in stock represent the final available supply. Applications should transition to the active Amphenol RF 901-9531-2SF to ensure long-term component availability and supply chain continuity.

Q: Are there any assembly or installation differences between these two parts?

A: Both parts feature identical solder contact termination and crimp shield termination methods. Assembly procedures are equivalent. The primary difference is cable group compatibility: the primary part accommodates larger diameter cables (RG-58, RG-141, LMR-195), while the substitute accommodates only RG-316, which is a thinner cable. Installation orientation and threaded fastening mechanisms are identical.

Q: What compliance certifications apply to both parts?

A: Both parts are REACH Affected and classified as EAR99 for export control purposes. Both maintain Moisture Sensitivity Level 1 (unlimited), requiring no special storage conditions. The primary part meets ROHS3 Compliant status, while the substitute meets RoHS Compliant status. For applications subject to ROHS3 requirements, the primary part is the appropriate selection.

Q: Can the substitute part support the full 18 GHz frequency range of the primary part?

A: No. The substitute part's maximum frequency specification is 12.4 GHz. Applications requiring operation above 12.4 GHz must use the primary Amphenol RF 901-9531-2SF. Attempting to operate the substitute part above its maximum frequency specification will result in signal degradation and potential connector failure.

Q: What is the mating cycle rating, and does it differ between these parts?

A: Both parts are rated for 500 mating cycles, indicating the number of times the connector can be mated and unmated before performance degradation occurs. This specification is identical between the primary and substitute parts and does not affect substitution eligibility.