TE Connectivity 449785-1 SMA Coaxial Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 449785-1 is an SMA connector jack with female socket configuration, rated for 50 ohms impedance and designed for through-hole PCB mounting with solder termination. This component operates at frequencies up to 18 GHz and is classified as obsolete product status. Due to its obsolete designation, equivalent and substitute parts are necessary to maintain design continuity and ensure procurement availability for new production builds and field replacements.

Substiute Parts

449785-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 728449785-1 Datasheet

Current PartRFQ

1053372-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 8541053372-1 Datasheet

DirectRFQ

132291-12

Amphenol RFIn Stock: 1077132291-12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 449785-1 is determined by the following core parameters:

Critical Matching Parameters:

• Connector Style: SMA
• Connector Type: Jack, Female Socket
• Impedance: 50 Ohms
• Contact Termination: Solder
• Shield Termination: Solder
• Frequency - Max: 18 GHz
• Number of Ports: 1
• Fastening Type: Threaded

Acceptable Variation Parameters:

• Mounting Type: Through Hole (primary); Panel Mount with Through Hole acceptable with design review
• Body Material: Brass or Stainless Steel
• Product Status: Active status preferred over obsolete
• Operating Temperature Range: Extended ranges acceptable
• Mating Cycles: Equal or greater than 500
• Compliance Certifications: RoHS3 compliance acceptable

The substitute parts listed below meet the critical matching parameters and maintain electrical and mechanical compatibility with the original 449785-1 specification.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 1053372-1 (Direct Substitute)

The 1053372-1 is classified as a direct substitute for the 449785-1. Both components are manufactured by TE Connectivity Aerospace, Defense and Marine and share identical electrical specifications including 50 ohm impedance, 18 GHz maximum frequency, and solder termination. The 1053372-1 maintains active product status and carries ROHS3 compliance certification. The primary distinction is body material composition (stainless steel versus brass) and extended operating temperature range (-65°C to 125°C). The stainless steel body provides enhanced corrosion resistance suitable for aerospace and defense applications. This substitute is appropriate for direct replacement in new designs and production builds.

Amphenol RF 132291-12 (Similar Substitute)

The 132291-12 is classified as a similar substitute with cross-compatibility considerations. This component matches all critical electrical parameters and maintains the same 50 ohm impedance and 18 GHz frequency specification. The primary design difference is mounting configuration: the 132291-12 includes panel mount capability with bulkhead front-side nut fastening, whereas the 449785-1 is configured for standard through-hole PCB mounting. The 132291-12 is manufactured by Amphenol RF and carries ROHS3 compliance with REACH affected status. This substitute is suitable for applications requiring panel-mount configuration or where Amphenol RF component qualification is specified. The extended operating temperature range (-65°C to 165°C) and higher voltage rating (500 V) provide additional performance margin.

Compliance and Availability

Both substitute parts carry active product status and current compliance certifications (ROHS3), ensuring long-term procurement availability and regulatory compliance for aerospace, defense, and marine applications. The 1053372-1 is recommended as the primary substitute for direct replacement scenarios. The 132291-12 is recommended for applications requiring panel-mount configuration or where Amphenol RF qualification is required.

Frequently Asked Questions (FAQ)

Q: Can the 1053372-1 be used as a direct replacement for the 449785-1 in existing PCB designs?

A: Yes. The 1053372-1 maintains identical electrical specifications (50 ohm impedance, 18 GHz maximum frequency, solder termination) and through-hole mounting configuration. The stainless steel body material provides equivalent or superior performance compared to the brass body of the original part. Physical dimensions and pin configuration are compatible with existing PCB layouts.

Q: What is the difference between the 449785-1 and the 132291-12?

A: The primary difference is mounting configuration. The 449785-1 is a standard through-hole PCB mount connector, while the 132291-12 includes panel mount capability with bulkhead front-side nut fastening. Both maintain identical electrical specifications (50 ohm impedance, 18 GHz frequency, solder termination). The 132291-12 is suitable for applications requiring panel-mount installation or where Amphenol RF components are specified.

Q: Why is the 449785-1 listed as obsolete?

A: The 449785-1 is classified as obsolete product status by TE Connectivity. Active substitute parts (1053372-1 and 132291-12) are available to support continued procurement and design requirements. Obsolete designation does not indicate functional deficiency but reflects manufacturer product lifecycle management.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both the TE Connectivity 1053372-1 and Amphenol RF 132291-12 are ROHS3 compliant, meeting current regulatory requirements for aerospace, defense, and marine applications.

Q: What is the difference in body material between the 449785-1 and 1053372-1?

A: The 449785-1 features a brass body with gold finish, while the 1053372-1 features a stainless steel body with gold finish. Stainless steel provides enhanced corrosion resistance and is suitable for harsh environmental conditions. Both materials maintain equivalent electrical performance at 50 ohm impedance and 18 GHz frequency.

Q: Can the 132291-12 be used in applications where the 449785-1 was originally specified?

A: The 132291-12 is electrically compatible with the 449785-1 (identical impedance, frequency, and termination specifications). However, the panel-mount configuration with bulkhead fastening requires PCB design modification. The 132291-12 is suitable for new designs requiring panel-mount capability or where Amphenol RF component qualification is specified.

Q: What is the moisture sensitivity level (MSL) for the substitute parts?

A: Both substitute parts carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly. This provides superior handling flexibility compared to the original part's not-applicable MSL designation.

Q: Are there any frequency or impedance differences between the three parts?

A: No. All three parts (449785-1, 1053372-1, and 132291-12) maintain identical frequency specification (18 GHz maximum) and impedance rating (50 ohms). Electrical performance is equivalent across all three components.