SMA Connector Plug 50 Ohm 951A205F Equivalent & Substitute Parts

Part Overview

The Winchester Interconnect 951A205F is an SMA connector plug with male pin configuration designed for 50-ohm RF applications. This coaxial connector operates across a frequency range up to 12.5 GHz and is compatible with RG-58 cable groups. The part is currently active in production with 1063 units in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design requirements permit alternative qualified components that meet identical electrical and mechanical specifications.

Substiute Parts

951A205F

Winchester InterconnectIn Stock: 1159951A205F Datasheet

Current PartRFQ

446862-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 1039446862-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 951A205F is determined by the following critical parameters:

Electrical Compatibility:

• Connector style must be SMA
• Connector type must be Plug, Male Pin
• Impedance must be 50 Ohms
• Frequency capability must support 12.5 GHz maximum operation

Mechanical Compatibility:

• Fastening type must be Threaded
• Number of ports must be 1
• Mating cycle rating must meet or exceed 500 cycles

Environmental & Compliance:

• Operating temperature range must encompass -65°C to 165°C
• RoHS compliance status must be current or equivalent

The substitute part 446862-1 (TE Connectivity Aerospace, Defense and Marine) satisfies all critical electrical and mechanical parameters required for direct substitution with the 951A205F.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 951A205F

The Winchester Interconnect 951A205F remains the preferred selection for new designs and ongoing production. This part is currently active with established supply availability (1063 units in stock) and carries RoHS compliance certification. The component meets all specified electrical and mechanical requirements for 50-ohm SMA plug applications up to 12.5 GHz.

Substitute Part: 446862-1

The TE Connectivity 446862-1 qualifies as a direct electrical and mechanical substitute. This part is marked as discontinued at DiGi Electronics, indicating limited future availability. The substitute maintains identical connector geometry, impedance, fastening mechanism, and mating cycle specifications. The 446862-1 carries ROHS3 compliance, which supersedes the RoHS standard applied to the primary part. Both components share identical ECCN and HTSUS classifications, confirming regulatory equivalence.

Selection of the substitute should be limited to applications where the primary part is unavailable or where existing inventory of the 446862-1 is already qualified within the system.

Frequently Asked Questions (FAQ)

Q: Can the 446862-1 be used as a direct replacement for the 951A205F in existing designs?

A: Yes. Both parts are SMA plug connectors with 50-ohm impedance, threaded fastening, and identical mating cycle ratings. The electrical and mechanical interfaces are equivalent, permitting direct substitution in applications currently using the 951A205F.

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

A: The 951A205F is active in production with current inventory. The 446862-1 is discontinued at DiGi Electronics, meaning new stock procurement is restricted. Existing inventory of the 446862-1 may be available through alternative distribution channels.

Q: Are there compliance differences between the two parts?

A: Both parts are RoHS compliant. The 446862-1 carries ROHS3 certification, which represents a more recent compliance standard. Both parts share identical ECCN (EAR99) and HTSUS (8536.69.4010) classifications, confirming regulatory equivalence for export and tariff purposes.

Q: What cable types are compatible with these connectors?

A: The 951A205F is specified for RG-58 cable group compatibility. The 446862-1 does not specify a cable group in the provided data. Both parts maintain SMA plug geometry, which is standardized across RG-58 and similar 50-ohm cable types.

Q: Does the 446862-1 offer any performance advantages?

A: The 446862-1 specifies weatherproof ingress protection and 0.3 dB insertion loss. The 951A205F does not provide these specifications in the available data. The weatherproof rating indicates enhanced environmental sealing, which may be beneficial in outdoor or harsh-environment applications.

Q: What is the operating temperature range for both parts?

A: The 951A205F operates from -65°C to 165°C. The 446862-1 does not specify an operating temperature range in the provided data. For applications requiring confirmed temperature performance across the full -65°C to 165°C range, the 951A205F provides explicit specification.

Q: How many mating cycles do these connectors support?

A: Both the 951A205F and 446862-1 are rated for 500 mating cycles, indicating equivalent mechanical durability for connection and disconnection operations.