TE Connectivity 1050854-1 SMA Connector Jack Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1050854-1 is an SMA Connector Jack, Female Socket rated for 50 Ohms impedance with solder termination for both contact and shield. This free-hanging (in-line) connector is designed for RG-402 (.141" semi-rigid) cable applications and operates across a frequency range up to 18 GHz with an operating temperature range of -65°C to 105°C. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. Substitute parts must maintain electrical compatibility (50 Ohm impedance, SMA connector style, female socket configuration) and mechanical compatibility (solder termination, free-hanging mounting, threaded fastening).

Substiute Parts

1050854-1

TE Connectivity AMP ConnectorsIn Stock: 7751050854-1 Datasheet

Current PartRFQ

2081887-1

TE Connectivity AMP ConnectorsIn Stock: 16022081887-1 Datasheet

SimilarRFQ

2902-6005

Amphenol SV MicrowaveIn Stock: 16252902-6005 Datasheet

DirectRFQ

142-0593-001

Cinch Connectivity Solutions JohnsonIn Stock: 1894142-0593-001 Datasheet

SimilarRFQ

142-0594-001

Cinch Connectivity SolutionsIn Stock: 986142-0594-001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 1050854-1 is determined by the following critical parameters:

Mandatory Electrical Parameters:

• Connector Style: SMA (required for mechanical mating)
• Connector Type: Jack, Female Socket (required for interface compatibility)
• Impedance: 50 Ohms (required for signal integrity)
• Contact Termination: Solder (required for assembly method compatibility)
• Shield Termination: Solder (required for assembly method compatibility)

Mandatory Mechanical Parameters:

• Mounting Type: Free Hanging (In-Line) (required for installation configuration)
• Fastening Type: Threaded (required for mating interface)

Performance Parameters (Application-Dependent):

• Frequency - Max: Substitute must meet or exceed 18 GHz minimum requirement
• Voltage Rating: Substitute must meet or exceed 500 V minimum requirement
• Operating Temperature: Substitute must encompass or exceed -65°C to 105°C range
• Cable Group: RG-402 (.141" semi-rigid) compatibility preferred but not absolute if electrical parameters align

Substitute parts are grouped into two categories: Direct Equivalents (matching all critical parameters) and Compatible Alternatives (meeting all mandatory parameters with enhanced performance specifications).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Substitutes (Preferred for Replacement Applications):

142-0594-001 (Cinch Connectivity Solutions) is the primary direct equivalent. This part maintains identical electrical specifications (50 Ohm impedance, 18 GHz maximum frequency, 500 V voltage rating) and mechanical configuration (SMA jack, female socket, solder termination, free-hanging mounting, threaded fastening). The part is compatible with RG-402 (.141" semi-rigid) cable and operates across -65°C to 165°C, which encompasses the original operating range. Product status is active with ROHS3 compliance and REACH affected designation. Inventory availability is 886 pieces.

Compatible Alternatives (Enhanced Performance Substitutes):

2081887-1 (TE Connectivity AMP Connectors) provides enhanced frequency performance (27 GHz versus 18 GHz) while maintaining 50 Ohm impedance and SMA jack configuration. Operating temperature range extends to 165°C. However, voltage rating is reduced to 335 V. This part is suitable for applications requiring higher frequency capability within the same connector family. Product status is active with ROHS3 compliance. Inventory availability is 1552 pieces.

142-0593-001 (Cinch Connectivity Solutions Johnson) offers enhanced frequency performance (26.5 GHz) and extended operating temperature (-65°C to 165°C) with 50 Ohm impedance and SMA jack configuration. Voltage rating is 335 V. This part is compatible with RG-405 (.086 semi-rigid) cable, which differs from the original RG-402 specification. Product status is active with ROHS3 compliance and REACH affected designation. Inventory availability is 1823 pieces.

Non-Equivalent Part (Not Recommended for Direct Substitution):

2902-6005 (Amphenol SV Microwave) is an SMA plug (male pin) rather than a jack (female socket), making it incompatible with the original jack interface requirement. This part is suitable only for complementary mating applications, not as a direct replacement.

Frequently Asked Questions (FAQ)

Q: Can 2081887-1 replace 1050854-1 in all applications?

A: 2081887-1 is electrically compatible for 50 Ohm impedance and SMA jack configuration. However, the voltage rating is reduced from 500 V to 335 V. Applications operating at voltages exceeding 335 V require 142-0594-001 or verification that the lower voltage rating is acceptable for the specific circuit.

Q: What is the difference between 142-0594-001 and 142-0593-001?

A: Both parts are SMA jacks with solder termination and 50 Ohm impedance. 142-0594-001 is rated for 18 GHz maximum frequency and 500 V voltage, matching the original part specifications. 142-0593-001 is rated for 26.5 GHz maximum frequency but 335 V voltage and is compatible with RG-405 (.086 semi-rigid) cable instead of RG-402 (.141" semi-rigid). Selection depends on frequency and voltage requirements of the application.

Q: Why is 2902-6005 listed as a substitute if it is a plug, not a jack?

A: 2902-6005 is included in the substitute list as a reference point for complementary mating applications. It is not suitable as a direct replacement for the 1050854-1 jack. Applications requiring a jack connector must use 2081887-1, 142-0594-001, or 142-0593-001.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original part 1050854-1 is RoHS Compliant. All substitute parts (2081887-1, 142-0594-001, 142-0593-001, and 2902-6005) are ROHS3 Compliant, meeting current regulatory requirements.

Q: What is the impact of cable group differences between substitutes?

A: The original part 1050854-1 is specified for RG-402 (.141" semi-rigid) cable. 142-0594-001 and 2081887-1 maintain RG-402 compatibility. 142-0593-001 is compatible with RG-405 (.086 semi-rigid) cable, which has a smaller diameter. Cable group selection affects mechanical fit and should be verified against the specific application's cable specifications.

Q: Can I use a substitute with a higher frequency rating in a lower frequency application?

A: Yes. Parts with higher frequency ratings (2081887-1 at 27 GHz or 142-0593-001 at 26.5 GHz) are backward compatible with applications requiring 18 GHz or lower. However, all other electrical and mechanical parameters must remain compatible with the application requirements.

Q: What is the significance of the operating temperature range differences?

A: The original part operates from -65°C to 105°C. All substitute parts extend the upper temperature limit to 165°C, providing broader environmental compatibility. Applications operating within the original -65°C to 105°C range are unaffected by this difference. Applications requiring operation above 105°C benefit from the extended range of substitute parts.

Q: Are there inventory considerations for part selection?

A: Inventory availability varies: 1050854-1 (700 pieces, obsolete), 2081887-1 (1552 pieces, active), 142-0594-001 (886 pieces, active), 142-0593-001 (1823 pieces, active), and 2902-6005 (1568 pieces, active). For new designs or long-term support, active parts with higher inventory are preferred.