SMA Connector Jack 132291-12 Equivalent & Substitute Parts

Part Overview

The Amphenol RF 132291-12 is an SMA connector jack (female socket) rated for 50 ohms impedance, designed for panel mount through-hole solder applications. This coaxial RF connector operates across frequencies up to 18 GHz and is suitable for PCB integration in RF and microwave systems. The part is currently active in production status with 1033 pieces in stock inventory. Equivalent substitute parts are identified to support supply chain flexibility, design redundancy, and procurement alternatives when the primary part becomes unavailable or when design specifications permit cross-manufacturer compatibility.

Substiute Parts

132291-12

Amphenol RFIn Stock: 1077132291-12 Datasheet

Current PartRFQ

142-0701-421

Cinch Connectivity Solutions JohnsonIn Stock: 1519142-0701-421 Datasheet

Parametric EquivalentRFQ

142-0701-491

Cinch Connectivity SolutionsIn Stock: 2532142-0701-491 Datasheet

Parametric EquivalentRFQ

BU-1420701491

Mueller Electric CoIn Stock: 905BU-1420701491 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 132291-12 are identified based on strict parametric equivalence across the following critical specifications:

Mandatory Matching Parameters:

• Connector Style: SMA
• Connector Type: Jack, Female Socket
• Impedance: 50 Ohms
• Mounting Type: Panel Mount, Through Hole
• Contact Termination: Solder
• Shield Termination: Solder
• Frequency - Max: 18 GHz
• Body Material: Brass
• Body Finish: Gold
• Center Contact Material: Beryllium Copper
• Center Contact Plating: Gold
• Dielectric Material: PTFE
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All three substitute parts (142-0701-421, 142-0701-491, and BU-1420701491) meet these mandatory parameters. Variations in voltage rating and operating temperature upper limit are noted but do not preclude substitution when application requirements fall within the substitute part specifications.

Parameter Comparison

Engineering Selection Recommendations

142-0701-421 (Cinch Connectivity Solutions Johnson): This substitute maintains full parametric equivalence with the primary part across all critical RF and mechanical specifications. The voltage rating of 335 V is lower than the 132291-12 (500 V) but remains suitable for standard RF applications. Operating temperature range matches the primary part (-65°C ~ 165°C). ROHS3 compliance and REACH Affected status align with regulatory requirements. Inventory availability is 1483 pieces.

142-0701-491 (Cinch Connectivity Solutions): This substitute is functionally equivalent to 142-0701-421 with identical electrical and mechanical parameters. Voltage rating is 335 V. Operating temperature range matches the primary part. ROHS3 compliance and REACH Affected status are maintained. This part offers the highest inventory availability at 2494 pieces, supporting extended procurement windows.

BU-1420701491 (Mueller Electric Co): This substitute meets all mandatory parametric requirements with the following considerations: Operating temperature upper limit is 150°C (compared to 165°C for the primary part), which may restrict use in high-temperature applications. Voltage rating is 335 V. Mating cycles specification is not provided. REACH Unaffected status differs from the primary part. ROHS3 compliance is maintained. Inventory availability is 876 pieces. This part is suitable for applications where the 150°C upper temperature limit is acceptable.

All three substitutes are active production parts with ROHS3 compliance and MSL 1 rating, supporting long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can 142-0701-421, 142-0701-491, and BU-1420701491 be used interchangeably with 132291-12?

A: Yes, within application-specific constraints. All three substitutes match the mandatory parametric specifications for SMA jack connectors rated at 50 ohms, 18 GHz maximum frequency, panel mount through-hole solder termination, and PTFE dielectric. However, the lower voltage rating (335 V vs. 500 V) and, for BU-1420701491, the reduced operating temperature upper limit (150°C vs. 165°C) must be evaluated against application requirements.

Q: What is the difference between 142-0701-421 and 142-0701-491?

A: Both parts are manufactured by Cinch Connectivity Solutions and are parametrically identical. The primary difference is inventory availability: 142-0701-491 has 2494 pieces in stock compared to 1483 pieces for 142-0701-421. Both maintain identical electrical, mechanical, and compliance specifications.

Q: Why does BU-1420701491 have a lower operating temperature upper limit?

A: The BU-1420701491 is specified with a maximum operating temperature of 150°C, compared to 165°C for the primary part and the other substitutes. This specification difference is provided by Mueller Electric Co and must be considered when selecting this part for high-temperature applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all three substitute parts (142-0701-421, 142-0701-491, and BU-1420701491) are ROHS3 compliant, matching the primary part's regulatory status.

Q: What is the significance of REACH status differences?

A: The primary part (132291-12) and the two Cinch substitutes (142-0701-421 and 142-0701-491) are marked as REACH Affected, indicating they contain substances of concern under REACH regulations. The Mueller part (BU-1420701491) is marked as REACH Unaffected. For applications subject to REACH compliance requirements, this distinction may influence part selection.

Q: Do all substitutes include the same accessories (lockwasher and nut)?

A: The Amphenol RF 132291-12 and both Cinch parts (142-0701-421 and 142-0701-491) include 3 pieces: 1 connector, 1 lockwasher, and 1 nut. The Mueller part (BU-1420701491) does not specify included accessories. Verify accessory requirements for your application before selection.

Q: What is the voltage rating difference, and does it affect RF performance?

A: The primary part is rated at 500 V, while all three substitutes are rated at 335 V. This difference reflects the dielectric breakdown specification and does not directly affect RF performance (impedance, frequency response, or insertion loss). Selection should be based on the maximum DC or low-frequency voltage present in the application circuit.

Q: Are mating cycle specifications available for all parts?

A: The primary part and the two Cinch substitutes specify 500 mating cycles. The Mueller part (BU-1420701491) does not provide a mating cycle specification. For applications requiring frequent connector mating, the Cinch parts with specified 500-cycle ratings are recommended.