APH-SMAJ-MMCXP Equivalent & Substitute Parts

Part Overview

The APH-SMAJ-MMCXP is a coaxial adapter connector manufactured by Amphenol RF that converts between SMA Jack (female socket) and MMCX Plug (male pin) interfaces. This adapter operates at 50 Ohms impedance with a maximum frequency rating of 6 GHz and supports an operating temperature range of -65°C to 165°C. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives for continued system integration and procurement.

Substiute Parts

APH-SMAJ-MMCXP

Amphenol RFIn Stock: 875APH-SMAJ-MMCXP Datasheet

Current PartRFQ

242141

Amphenol RFIn Stock: 1222242141 Datasheet

DirectRFQ

HRMJ-MMCXP

Hirose Electric Co LtdIn Stock: 865HRMJ-MMCXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the APH-SMAJ-MMCXP is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

• Adapter Series: SMA to MMCX conversion capability
• Center Gender: Female to Male configuration
• Convert From End: SMA Jack, Female Socket
• Convert To End: MMCX Plug, Male Pin
• Impedance: 50 Ohms
• Style: Straight
• Mounting Type: Free Hanging (In-Line)
• Fastening Type: Snap-On, Threaded
• Frequency - Max: 6 GHz minimum
• Dielectric Material: Polytetrafluoroethylene (PTFE)
• Center Contact Material: Beryllium Copper
• Center Contact Plating: Gold
• Body Finish: Gold

Acceptable Variation Parameters:

• Body Material: Brass or Stainless Steel
• Operating Temperature Range: Must encompass or exceed the application requirement
• Product Status: Active status preferred for obsolete parts
• RoHS/REACH Compliance: Enhanced compliance acceptable
• Mating Cycles: Higher cycle ratings acceptable

Both identified substitute parts meet all mandatory matching parameters and represent functionally equivalent alternatives to the obsolete APH-SMAJ-MMCXP.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 242141 (Amphenol RF)

The 242141 represents the optimal substitute for the obsolete APH-SMAJ-MMCXP. Both parts are manufactured by Amphenol RF and share identical electrical and mechanical specifications. The 242141 maintains the same operating temperature range (-65°C ~ 165°C), impedance (50 Ohms), frequency rating (6 GHz), and material composition. The part holds active product status with enhanced ROHS3 compliance and REACH compliance documentation. The 242141 is available in higher inventory quantities (1210 pieces) compared to the remaining APH-SMAJ-MMCXP stock (782 pieces), supporting long-term procurement continuity.

Secondary Substitute: HRMJ-MMCXP (Hirose Electric Co Ltd)

The HRMJ-MMCXP provides an alternative from a different manufacturer with equivalent functional performance. This part maintains all critical electrical parameters including 50 Ohms impedance, 6 GHz frequency rating, and identical connector gender configuration. The HRMJ-MMCXP features stainless steel body construction instead of brass, providing enhanced corrosion resistance in certain environmental conditions. The part includes documented mating cycle rating of 500 cycles. However, the operating temperature range is restricted to -55°C ~ 85°C, which does not encompass the full temperature capability of the original part. This limitation requires evaluation against specific application temperature requirements. The HRMJ-MMCXP holds active product status with ROHS3 and REACH compliance.

Directional Consideration for 242141:

The 242141 exhibits reversed conversion direction compared to the APH-SMAJ-MMCXP. The 242141 converts from MMCX Plug (male pin) to SMA Jack (female socket), while the APH-SMAJ-MMCXP converts from SMA Jack (female socket) to MMCX Plug (male pin). Both adapters are mechanically and electrically reversible in application, as the adapter interfaces are passive and bidirectional. Selection between these parts depends on the physical orientation and connector mounting configuration within the target assembly.

Frequently Asked Questions (FAQ)

Q: Can the 242141 be used as a direct replacement for the APH-SMAJ-MMCXP?

A: The 242141 is functionally equivalent but features reversed conversion direction. The APH-SMAJ-MMCXP converts SMA Jack to MMCX Plug, while the 242141 converts MMCX Plug to SMA Jack. Both parts are passive adapters with identical electrical characteristics and can be used interchangeably in applications where connector orientation permits. Physical installation configuration determines practical substitutability.

Q: What is the primary difference between the 242141 and HRMJ-MMCXP substitutes?

A: The 242141 and HRMJ-MMCXP differ in three areas: manufacturer (Amphenol RF versus Hirose), body material (brass versus stainless steel), and operating temperature range (−65°C ~ 165°C versus −55°C ~ 85°C). Both maintain identical electrical specifications and connector configurations. The HRMJ-MMCXP includes a documented mating cycle rating of 500 cycles, while cycle ratings are not specified for the other parts.

Q: Does the operating temperature limitation of the HRMJ-MMCXP affect substitutability?

A: The HRMJ-MMCXP operating temperature range of −55°C ~ 85°C is narrower than the APH-SMAJ-MMCXP range of −65°C ~ 165°C. Applications requiring operation below −55°C or above 85°C cannot use the HRMJ-MMCXP. Applications operating within the −55°C ~ 85°C window are compatible with all three parts.

Q: Are all three parts RoHS compliant?

A: The APH-SMAJ-MMCXP is RoHS Compliant. The 242141 and HRMJ-MMCXP are ROHS3 Compliant, representing enhanced compliance with current regulations. All three parts meet RoHS requirements and are suitable for applications with RoHS mandates.

Q: What packaging options are available for these substitutes?

A: The APH-SMAJ-MMCXP packaging is not specified. The 242141 is supplied in Bag packaging. The HRMJ-MMCXP is supplied in Bulk packaging. Packaging selection may influence procurement quantities and handling procedures.

Q: How do the body materials affect performance?

A: The APH-SMAJ-MMCXP and 242141 use brass body material with gold finish. The HRMJ-MMCXP uses stainless steel body material with gold finish. Stainless steel provides enhanced corrosion resistance in harsh environmental conditions. Brass offers standard performance in controlled environments. Both materials maintain equivalent electrical performance at the specified 50 Ohms impedance and 6 GHz frequency rating.

Q: Are these adapters suitable for high-frequency applications?

A: All three parts are rated for maximum frequency of 6 GHz and maintain 50 Ohms impedance across this range. Applications operating at or below 6 GHz are compatible with all substitutes. Applications exceeding 6 GHz require alternative connector solutions.

Q: What is the significance of the Moisture Sensitivity Level (MSL) rating?

A: All three parts carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts do not require special moisture control during storage, handling, or assembly processes.