Amphenol RF 901-144-3 SMA Coaxial Connector Equivalent & Substitute Parts

Part Overview

The Amphenol RF 901-144-3 is an SMA Connector Receptacle, Female Socket rated at 50 Ohms for through-hole PCB mounting with solder termination. This component is classified as Active product status and is currently in stock with 638 pieces available. Substitute parts are identified when equivalent electrical and mechanical parameters are required for circuit design flexibility, supply chain alternatives, or component availability management in RF coaxial connector applications.

Substiute Parts

901-144-3

Amphenol RFIn Stock: 709901-144-3 Datasheet

Current PartRFQ

142-0701-206

Cinch Connectivity SolutionsIn Stock: 1744142-0701-206 Datasheet

DirectRFQ

221789-1

TE Connectivity AMP ConnectorsIn Stock: 1452221789-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 901-144-3 are qualified based on the following critical parameters that define functional equivalence in SMA coaxial connector applications:

Electrical Equivalence Criteria: All substitute parts maintain 50 Ohm impedance, matching the primary specification for RF signal integrity. Connector type (Receptacle, Female Socket), contact termination (Solder), and shield termination (Solder) are identical across all qualified substitutes.

Mechanical Equivalence Criteria: Through-hole mounting type, threaded fastening, and single-port configuration are consistent across all parts. Operating temperature range (-65°C to 165°C) and mating cycle rating (500 cycles) are maintained.

Material and Environmental Criteria: All substitutes use Beryllium Copper center contacts and PTFE dielectric material. Moisture Sensitivity Level 1 (Unlimited) is consistent across all parts.

Compliance Criteria: All substitute parts maintain RoHS compliance and EAR99 ECCN classification. HTSUS code 8536.69.4010 is uniform across all parts.

The two identified substitutes are Cinch Connectivity Solutions 142-0701-206 and TE Connectivity AMP Connectors 221789-1, both classified as SMA Jacks with Female Socket configuration.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: Amphenol RF 901-144-3

The Amphenol RF 901-144-3 is the specified component with Active product status and ROHS3 compliance. This part is recommended for new designs and applications requiring the highest compliance level.

First Alternative: Cinch Connectivity Solutions 142-0701-206

The Cinch 142-0701-206 is qualified as a direct substitute with Active product status. This part maintains all critical electrical and mechanical parameters. The Cinch connector supports higher frequency operation (18 GHz maximum) compared to the primary part. RoHS compliance is confirmed. Inventory availability is higher at 1703 pieces. REACH status is unaffected, which may provide supply chain advantages in certain regulatory environments.

Second Alternative: TE Connectivity AMP Connectors 221789-1

The TE Connectivity 221789-1 is qualified as a substitute but carries Obsolete product status. This part maintains all critical electrical and mechanical parameters and RoHS compliance. Frequency capability is limited to 4 GHz maximum. Insertion loss is specified at 0.3 dB. This part should be selected only when existing inventory must be utilized or when legacy system compatibility is required. New designs should avoid this part due to obsolete status.

Compliance Summary:

All three parts maintain 50 Ohm impedance, identical termination methods, and operating temperature ranges. All parts are RoHS compliant and carry EAR99 ECCN classification. Moisture Sensitivity Level 1 is consistent across all parts.

Frequently Asked Questions (FAQ)

Q: Can the Cinch 142-0701-206 be used as a direct replacement for the Amphenol RF 901-144-3?

A: Yes. Both parts are SMA Female Socket connectors with 50 Ohm impedance, solder termination, through-hole mounting, and identical operating temperature ranges. The Cinch part is Active status with higher frequency capability (18 GHz) and greater inventory availability.

Q: What is the difference between "Receptacle" and "Jack" terminology in these part descriptions?

A: Both terms refer to the female socket connector type in SMA applications. The Amphenol part uses "Receptacle" terminology while the Cinch and TE Connectivity parts use "Jack" terminology. These are functionally equivalent designations for the same connector gender and mating interface.

Q: Why is the TE Connectivity 221789-1 marked as Obsolete?

A: The TE Connectivity 221789-1 carries Obsolete product status, indicating it is no longer in active production. While inventory is currently available (1440 pieces), this part should not be selected for new designs. Use this part only for legacy system maintenance or when existing stock must be consumed.

Q: Are there frequency limitations I should consider when substituting these parts?

A: The Amphenol RF 901-144-3 does not specify a maximum frequency. The Cinch 142-0701-206 supports up to 18 GHz. The TE Connectivity 221789-1 supports up to 4 GHz. If your application requires frequencies above 4 GHz, the TE Connectivity part is not suitable. The Cinch part provides the highest frequency capability.

Q: Do all three parts have the same voltage rating?

A: The Amphenol RF 901-144-3 does not specify a voltage rating. Both the Cinch 142-0701-206 and TE Connectivity 221789-1 are rated at 335 V. If voltage rating is critical to your application, confirm that 335 V is acceptable for the Amphenol part through the manufacturer.

Q: What is the significance of the different body finishes (Gold vs. Nickel)?

A: The Amphenol RF 901-144-3 features a gold body finish. The Cinch 142-0701-206 features a nickel body finish. Both finishes provide corrosion resistance and are suitable for PCB solder applications. The choice between gold and nickel does not affect electrical performance in standard RF applications.

Q: Are all parts RoHS compliant?

A: Yes. The Amphenol RF 901-144-3 is ROHS3 compliant. The Cinch 142-0701-206 and TE Connectivity 221789-1 are RoHS compliant. All three parts meet RoHS requirements for new product designs.

Q: What does Moisture Sensitivity Level 1 mean?

A: Moisture Sensitivity Level 1 (Unlimited) indicates that these connectors have no moisture sensitivity restrictions. They can be stored and handled without special humidity controls or baking procedures prior to soldering.

Q: Can I mix these connector types in the same PCB assembly?

A: Yes. All three parts are mechanically and electrically compatible for through-hole PCB mounting with solder termination. They share identical mating interfaces and can be used interchangeably in the same circuit board design.

Q: What is the mating cycle rating and why does it matter?

A: All three parts are rated for 500 mating cycles. This specification indicates the number of times the connector can be mated and unmated before performance degradation. For fixed PCB installations, this rating is typically not a limiting factor.