SMA Connector Jack 142-0303-406 Equivalent & Substitute Parts

Part Overview

The 142-0303-406 is an SMA connector jack manufactured by Cinch Connectivity Solutions Johnson. This female socket connector operates at 50 ohms impedance and is designed for panel mount applications with bulkhead front side nut mounting. The connector supports crimp or solder termination and is compatible with RG-161, 174, 188, and 316 cable groups. As an active product with RoHS compliance and unlimited moisture sensitivity level, this connector is suitable for RF applications requiring frequencies up to 12.4 GHz. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and access to alternative inventory sources when the primary part number becomes unavailable.

Substiute Parts

142-0303-406

Cinch Connectivity Solutions JohnsonIn Stock: 1123142-0303-406 Datasheet

Current PartRFQ

142-0303-416

Cinch Connectivity SolutionsIn Stock: 1251142-0303-416 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 142-0303-416 qualifies as a parametric equivalent to the 142-0303-406 based on the following critical parameters that determine substitution eligibility:

Connector style, type, and gender remain identical (SMA jack, female socket). Impedance specification matches at 50 ohms. Contact and shield termination methods are equivalent (crimp or solder for contact, crimp for shield). Mounting configuration is identical (panel mount with bulkhead front side nut). Maximum frequency rating is unchanged at 12.4 GHz. Cable group compatibility remains the same (RG-161, 174, 188, 316). Operating temperature range and voltage rating are identical (-65°C ~ 165°C, 250 V). Mating cycle rating is equivalent at 500 cycles. Both parts share the same base product number (142-0303), confirming their functional equivalence within the SMA connector jack family.

Parameter Comparison

Engineering Selection Recommendations

Both the 142-0303-406 and 142-0303-416 are active products from Cinch Connectivity Solutions with full regulatory compliance. The 142-0303-406 carries RoHS compliance certification, while the 142-0303-416 meets the more recent ROHS3 standard and includes REACH affected status documentation. Both parts maintain EAR99 export classification and identical HTSUS codes. Selection between these parts should be based on supply availability, inventory levels, and specific regulatory requirements of the end application. The 142-0303-416 provides enhanced compliance documentation for applications requiring REACH compliance verification.

Frequently Asked Questions (FAQ)

Q: Can the 142-0303-416 be used as a direct replacement for the 142-0303-406?

A: Yes. Both connectors share identical electrical and mechanical specifications including SMA jack configuration, 50 ohm impedance, panel mount bulkhead design, crimp or solder termination, and 12.4 GHz maximum frequency rating. They are functionally equivalent for RF applications.

Q: What are the differences between these two part numbers?

A: The primary differences are packaging configuration and regulatory certifications. The 142-0303-406 includes 8 component pieces per connector, while the 142-0303-416 includes 5 pieces. The 142-0303-416 carries ROHS3 compliance and REACH affected status, compared to standard RoHS compliance for the 142-0303-406.

Q: Are the cable compatibility specifications identical?

A: Yes. Both connectors support the same cable groups: RG-161, 174, 188, and 316. Cable termination methods and impedance matching are equivalent.

Q: Do these connectors have the same operating temperature range?

A: Yes. Both connectors operate across the identical temperature range of -65°C to 165°C with the same 250 V voltage rating and 500 mating cycle specification.

Q: Which part should be selected for new designs?

A: Selection depends on supply chain requirements and regulatory scope. The 142-0303-416 is recommended for applications requiring REACH compliance documentation or when ROHS3 certification is specified. Either part is suitable for standard RF applications meeting the specified electrical and mechanical parameters.