Amphenol RF 252141 MCX Connector Receptacle Equivalent & Substitute Parts

Part Overview

The Amphenol RF 252141 is an MCX connector receptacle designed for RF coaxial applications requiring 50 ohm impedance. This female socket connector features right-angle through-hole solder termination for PCB mounting and operates at frequencies up to 6 GHz. The part is Active in product status and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across manufacturing environments.

Substiute Parts

252141

Amphenol RFIn Stock: 940252141 Datasheet

Current PartRFQ

252129

Amphenol RFIn Stock: 2079252129 Datasheet

Parametric EquivalentRFQ

919-119J-51AX

Amphenol RFIn Stock: 1227919-119J-51AX Datasheet

Parametric EquivalentRFQ

133-3701-311

Cinch Connectivity SolutionsIn Stock: 1451133-3701-311 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 252141 are identified based on strict parametric equivalence across the following critical parameters: connector style (MCX), connector type (receptacle/female socket), impedance (50 ohms), mounting configuration (through hole, right angle), termination method (solder), frequency rating (6 GHz maximum), and material composition (beryllium copper center contact, brass body with gold finish, PTFE dielectric).

Parametric Equivalents maintain all critical electrical and mechanical parameters with identical or superior specifications:

• Amphenol RF 252129
• Amphenol RF 919-119J-51AX

Direct Manufacturer Substitute provides functional equivalence from an alternative manufacturer:

• Cinch Connectivity Solutions 133-3701-311

All substitute parts are Active in product status and ROHS3 compliant. Substitution is valid when the application requirements align with the specified parameters.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, supporting long-term design continuity and regulatory adherence.

Amphenol RF 252129 is a parametric equivalent offering identical electrical and mechanical specifications to the primary part number 252141. Both parts are manufactured by Amphenol RF and share the same base product number (2521). This substitute is suitable for direct replacement in applications where inventory or lead time considerations require alternative sourcing within the same manufacturer family.

Amphenol RF 919-119J-51AX is a parametric equivalent with identical core specifications. This part is supplied in Bulk packaging and includes specified operating temperature range (-65°C ~ 165°C), whereas the primary part does not specify operating temperature. This substitute is suitable for applications requiring defined thermal performance parameters.

Cinch Connectivity Solutions 133-3701-311 is a direct manufacturer substitute from an alternative supplier. The part maintains all critical electrical parameters (50 ohm impedance, 6 GHz frequency rating, 0.1 dB insertion loss specification is not provided for this part). The Cinch part specifies operating temperature range (-65°C ~ 165°C) and voltage rating (335 V), which exceeds the primary part's voltage rating (225 V). This substitute is suitable for applications requiring cross-manufacturer qualification or when Amphenol RF parts are unavailable.

Selection between substitute parts is determined by procurement requirements, packaging preferences (Bag versus Bulk), thermal specifications, and manufacturer qualification status within the design environment.

Frequently Asked Questions (FAQ)

Q: Can Amphenol RF 252129 be used as a direct replacement for Amphenol RF 252141?

A: Yes. Both parts are parametric equivalents with identical connector style (MCX), connector type (receptacle, female socket), impedance (50 ohms), mounting configuration (through hole, right angle), termination method (solder), frequency rating (6 GHz), and material composition. The primary difference is packaging format (Bag versus Bag) and inventory availability.

Q: What is the difference between Amphenol RF 919-119J-51AX and the primary part 252141?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The 919-119J-51AX is supplied in Bulk packaging and includes a specified operating temperature range (-65°C ~ 165°C), whereas the primary part does not specify operating temperature. The base product numbers differ (91911 versus 2521), indicating different product lines within Amphenol RF.

Q: Is the Cinch Connectivity Solutions 133-3701-311 compatible with the Amphenol RF 252141?

A: Yes. The Cinch part maintains all critical electrical parameters: MCX connector style, female socket receptacle type, 50 ohm impedance, through hole right angle mounting, solder termination, and 6 GHz frequency rating. The Cinch part specifies operating temperature (-65°C ~ 165°C) and voltage rating (335 V), which exceeds the primary part's voltage rating (225 V). Insertion loss is not specified for the Cinch part. Substitution is valid when the application requirements align with these parameters.

Q: What packaging options are available for substitute parts?

A: Amphenol RF 252141 and 252129 are supplied in Bag packaging. Amphenol RF 919-119J-51AX and Cinch 133-3701-311 are supplied in Bulk packaging. Packaging selection depends on procurement volume requirements and inventory management practices.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (Amphenol RF 252129, Amphenol RF 919-119J-51AX, and Cinch 133-3701-311) are ROHS3 compliant and maintain Moisture Sensitivity Level 1 (Unlimited), matching the primary part's regulatory status.

Q: What is the mating cycle rating for all parts?

A: All parts, including the primary Amphenol RF 252141 and all substitute parts, are rated for 500 mating cycles.

Q: Does insertion loss differ between substitute parts?

A: Amphenol RF 252141, 252129, and 919-119J-51AX all specify 0.1 dB insertion loss. Insertion loss is not specified for the Cinch 133-3701-311 part.