SMA Connector Jack R124426120 Equivalent & Substitute Parts

Part Overview

The Radiall USA R124426120 is an SMA straight jack receptacle connector, female socket configuration, rated for 50 ohms impedance. This component functions as a coaxial RF connector for through-hole solder mounting applications with operating frequency capability to 18 GHz. The part maintains active product status with 829 units in current inventory stock. Equivalent substitute parts from alternative manufacturers become necessary when primary inventory is depleted, when supply chain constraints occur, or when design flexibility across multiple qualified suppliers is required for production continuity.

Substiute Parts

R124426120

Radiall USA, Inc.In Stock: 921R124426120 Datasheet

Current PartRFQ

142-0701-206

Cinch Connectivity SolutionsIn Stock: 1744142-0701-206 Datasheet

Parametric EquivalentRFQ

142-0701-216

Cinch Connectivity Solutions JohnsonIn Stock: 1553142-0701-216 Datasheet

Parametric EquivalentRFQ

142-0701-236

Cinch Connectivity SolutionsIn Stock: 5985142-0701-236 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the R124426120 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: SMA
• Connector Type: Jack, Female Socket
• Impedance: 50 Ohms
• Mounting Type: Through Hole
• Contact Termination: Solder
• Shield Termination: Solder
• Frequency - Max: 18 GHz
• Fastening Type: Threaded
• Operating Temperature Range: -65°C ~ 165°C
• Center Contact Material: Beryllium Copper
• Dielectric Material: Polytetrafluoroethylene (PTFE)
• Body Material: Brass
• Center Contact Plating: Gold
• Number of Ports: 1

All three substitute parts (142-0701-206, 142-0701-216, and 142-0701-236) from Cinch Connectivity Solutions meet these mandatory parameters and are classified as parametric equivalents. Variations in body finish (white bronze versus nickel), voltage rating, mating cycles, and compliance certifications do not affect functional interchangeability within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the R124426120 based on electrical and mechanical parameters. Selection among these alternatives should be based on the following criteria:

142-0701-206 (Cinch Connectivity Solutions): This part carries RoHS compliance certification and MSL rating of 1 (Unlimited), indicating suitability for moisture-sensitive environments without storage restrictions. REACH status is unaffected. This option provides the baseline equivalent with 1703 units in inventory.

142-0701-216 (Cinch Connectivity Solutions Johnson): This variant maintains identical electrical and mechanical specifications to 142-0701-206 with RoHS compliance and MSL 1 (Unlimited) rating. REACH status is vendor undefined. Inventory availability is 1476 units.

142-0701-236 (Cinch Connectivity Solutions): This part achieves ROHS3 compliance, matching the certification level of the primary part R124426120. MSL rating is 1 (Unlimited) and REACH status is affected. This option provides the highest inventory availability at 5887 units and represents the most direct compliance alignment with the original specification.

The substitute parts exhibit lower voltage ratings (335 V versus 500 V) and higher mating cycle ratings (500 versus 100), which do not restrict substitution within standard RF connector applications. Body finish variation from white bronze to nickel does not affect electrical performance or mechanical interchangeability.

Frequently Asked Questions (FAQ)

Q: Can 142-0701-206, 142-0701-216, and 142-0701-236 be used interchangeably with R124426120?

A: Yes. All three parts are parametric equivalents meeting identical specifications for connector style, impedance, mounting type, termination method, frequency range, operating temperature, and material composition. They are direct functional substitutes for through-hole solder mounting applications.

Q: What is the difference between the three Cinch substitute parts?

A: The three parts are electrically and mechanically identical. Differences exist in body finish (all three use nickel versus the original white bronze), voltage rating (335 V versus 500 V), mating cycle rating (500 versus 100), and compliance certifications. Part 142-0701-236 provides ROHS3 compliance matching the original specification.

Q: Does the lower voltage rating of the substitute parts affect compatibility?

A: No. The 335 V rating of the substitute parts remains suitable for standard RF connector applications. The voltage rating difference does not restrict functional interchangeability within the specified operating parameters.

Q: Are there any moisture sensitivity considerations for these substitutes?

A: All three substitute parts carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling do not require special moisture control measures.

Q: Which substitute part should be selected for new designs?

A: Part 142-0701-236 provides the highest inventory availability (5887 units) and achieves ROHS3 compliance, matching the certification level of the original R124426120. This part is suitable for new design implementations requiring compliance alignment with the primary specification.

Q: Do the substitute parts require different PCB footprints or mounting procedures?

A: No. All substitute parts maintain identical through-hole solder mounting specifications, fastening type (threaded), and mechanical dimensions. PCB footprints and assembly procedures remain unchanged.

Q: What is the significance of the different REACH statuses among the substitutes?

A: REACH status variations (unaffected, vendor undefined, or affected) reflect regulatory classification differences but do not affect electrical or mechanical performance. Selection based on REACH status depends on specific regulatory requirements of the end application or geographic market.