TE Connectivity AMP Connectors 2081204-9 SMA Coaxial Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2081204-9 is an SMA Connector Jack, Female Socket rated for 50 Ohms impedance with panel mount solder termination. This component is classified as Obsolete, necessitating identification of active equivalent parts for ongoing procurement and system integration. The connector is designed for RF coaxial applications with a maximum frequency rating of 18 GHz and operates across a temperature range of -65°C to 85°C.

Substiute Parts

2081204-9

TE Connectivity AMP ConnectorsIn Stock: 7592081204-9 Datasheet

Current PartRFQ

3-1478988-0

TE Connectivity AMP ConnectorsIn Stock: 10463-1478988-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2081204-9 is determined by the following critical parameters that must remain constant across equivalent parts:

Mandatory Matching Parameters:

• Connector Style: SMA
• Connector Type: Jack, Female Socket
• Impedance: 50 Ohms
• Mounting Type: Panel Mount
• Mounting Feature: Bulkhead - Front Side Nut
• Contact Termination: Solder
• Cable Group: RG-405 (.085" Semi Rigid)
• Fastening Type: Threaded
• Number of Ports: 1
• Mating Cycles: 500

The substitute part 3-1478988-0 satisfies all mandatory matching parameters. Variations in secondary parameters such as frequency maximum rating, body material composition, center contact material, dielectric material, and housing color do not preclude substitution when the primary electrical and mechanical interfaces remain compatible.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-1478988-0 is suitable for applications currently utilizing the obsolete 2081204-9. The substitute maintains electrical and mechanical compatibility through identical impedance, connector style, termination method, and mounting configuration.

Product Status Consideration: The 3-1478988-0 is classified as Active, ensuring continued availability and supply chain stability compared to the Obsolete status of the 2081204-9.

Compliance Status: The 3-1478988-0 carries RoHS Compliant certification, providing regulatory advantage for new designs and procurement cycles.

Frequency Rating Differential: The substitute part specifies a maximum frequency of 6 GHz compared to the main part's 18 GHz rating. Applications operating at frequencies exceeding 6 GHz require evaluation against actual system requirements.

Material Composition Differences: The substitute employs Beryllium Copper center contacts and PTFE dielectric material, contrasting with the main part's Copper Alloy contacts and PMP dielectric. These material differences do not affect mechanical or electrical interface compatibility at the 50 Ohm impedance level.

Shield Termination Variation: The substitute features Solder shield termination, whereas the main part specifies Crimp termination. Both termination methods are compatible with the RG-405 cable group and panel mount configuration.

Frequently Asked Questions (FAQ)

Q: Can the 3-1478988-0 directly replace the 2081204-9 in existing assemblies?

A: Yes. Both parts maintain identical SMA connector style, 50 Ohm impedance, panel mount configuration, and solder contact termination. The mechanical and electrical interfaces are compatible for direct substitution.

Q: What is the significance of the frequency rating difference between 18 GHz and 6 GHz?

A: The main part 2081204-9 supports RF applications up to 18 GHz, while the substitute 3-1478988-0 is rated to 6 GHz. Applications operating below 6 GHz are unaffected. Systems requiring operation above 6 GHz must confirm the substitute's suitability through application-specific analysis.

Q: Does the shield termination difference (Crimp vs. Solder) affect compatibility?

A: No. Both Crimp and Solder shield termination methods are compatible with the RG-405 cable group and the bulkhead panel mount configuration. The termination method selection depends on assembly process requirements rather than connector compatibility.

Q: Why is the 3-1478988-0 preferred despite the lower frequency rating?

A: The 3-1478988-0 is classified as Active with RoHS Compliant certification, ensuring long-term availability and regulatory compliance. The 2081204-9 is Obsolete, creating supply chain risk. For applications operating within the 6 GHz frequency limit, the substitute provides superior procurement stability.

Q: Are the material differences between center contacts and dielectric materials significant?

A: Material differences (Beryllium Copper vs. Copper Alloy contacts; PTFE vs. PMP dielectric) do not affect the 50 Ohm impedance matching or mechanical interface compatibility. These material variations are internal design choices that maintain electrical performance at the connector interface level.

Q: What packaging differences exist between these parts?

A: The main part 2081204-9 is supplied in standard packaging, while the substitute 3-1478988-0 is supplied in Bulk packaging. Both include connector assembly components; the substitute includes 6 pieces (Connector, Contact, Gasket, Insulator, Lockwasher, Nut) compared to the main part's 4 pieces (Connector, Ferrule, Lockwasher, Nut).

Q: Are both parts rated for the same operating temperature range?

A: The main part 2081204-9 specifies -65°C to 85°C operating temperature. The substitute 3-1478988-0 does not provide an operating temperature specification in the available data. Applications with specific temperature requirements should confirm the substitute's thermal performance through manufacturer documentation.