APH-SMAJ-MCXJ Equivalent & Substitute Parts

Part Overview

The APH-SMAJ-MCXJ is a coaxial adapter connector manufactured by Amphenol RF that converts between SMA Jack (Female Socket) and MCX Jack (Female Socket) interfaces. This adapter operates at 50 Ohms impedance with a maximum frequency rating of 6 GHz and supports operating temperatures from -65°C to 165°C.

The APH-SMAJ-MCXJ is classified as Obsolete. Identifying equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for applications requiring SMA to MCX jack conversion functionality.

Substiute Parts

APH-SMAJ-MCXJ

Amphenol RFIn Stock: 971APH-SMAJ-MCXJ Datasheet

Current PartRFQ

242129

Amphenol RFIn Stock: 1190242129 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the APH-SMAJ-MCXJ are identified based on strict equivalence across all critical electrical and mechanical parameters. The following parameters determine substitution eligibility:

Electrical Parameters:

• Adapter Series: SMA to MCX
• Center Gender: Female to Female
• Impedance: 50 Ohms
• Frequency - Max: 6 GHz
• Operating Temperature Range: -65°C ~ 165°C

Mechanical Parameters:

• Adapter Type: Jack to Jack
• Conversion Type: Between Series
• Style: Straight
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Snap-On, Threaded

Material Specifications:

• Body Material: Brass
• Body Finish: Gold
• Center Contact Material: Beryllium Copper
• Center Contact Plating: Gold
• Dielectric Material: Polytetrafluoroethylene (PTFE)

The substitute part 242129 meets all specified parameters and is therefore a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 242129

Part number 242129 is the direct equivalent substitute for APH-SMAJ-MCXJ. Both parts are manufactured by Amphenol RF and share identical electrical and mechanical specifications across all critical parameters.

Product Status Consideration:

The APH-SMAJ-MCXJ is classified as Obsolete, while 242129 is classified as Active. For new designs and ongoing procurement, 242129 is the appropriate selection to ensure long-term component availability and supply chain continuity.

Compliance Status:

Both parts comply with RoHS requirements. The APH-SMAJ-MCXJ carries RoHS Compliant status, while 242129 carries ROHS3 Compliant status, indicating compliance with the most current RoHS directive. Additionally, 242129 is REACH Affected, providing enhanced regulatory documentation for applications requiring comprehensive environmental compliance tracking.

Packaging Consideration:

The APH-SMAJ-MCXJ is supplied without specified packaging, while 242129 is supplied in Bag packaging. This difference does not affect functional equivalence but may impact inventory management and handling procedures.

Frequently Asked Questions (FAQ)

Q: Can 242129 be used as a direct replacement for APH-SMAJ-MCXJ?

A: Yes. Part 242129 is a direct equivalent substitute. All electrical parameters (impedance, frequency rating, operating temperature range), mechanical specifications (adapter type, mounting configuration, fastening method), and material compositions are identical between the two parts.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and regulatory compliance level. APH-SMAJ-MCXJ is Obsolete, while 242129 is Active. Additionally, 242129 carries ROHS3 Compliant status and REACH Affected designation, providing compliance with current environmental regulations. Functionally and electrically, the parts are equivalent.

Q: Are there any compatibility concerns when switching from APH-SMAJ-MCXJ to 242129?

A: No compatibility concerns exist. Both parts provide SMA Jack (Female Socket) to MCX Jack (Female Socket) conversion at 50 Ohms impedance with identical mechanical interfaces, fastening methods, and operating specifications.

Q: What is the frequency rating for these adapters?

A: Both adapters support a maximum frequency of 6 GHz, making them suitable for RF applications within this bandwidth specification.

Q: What operating temperature range is supported?

A: Both adapters operate across the temperature range of -65°C to 165°C, providing performance across extended environmental conditions.

Q: What materials are used in the construction of these adapters?

A: Both adapters feature brass bodies with gold finish, beryllium copper center contacts with gold plating, and polytetrafluoroethylene (PTFE) dielectric material. These material selections ensure electrical performance and environmental durability.

Q: Is there a difference in packaging between these parts?

A: APH-SMAJ-MCXJ does not specify packaging type, while 242129 is supplied in Bag packaging. This difference affects handling and storage but does not impact functional performance.

Q: What is the impedance specification for these adapters?

A: Both adapters are rated at 50 Ohms impedance, the standard impedance for RF coaxial connector systems.