FGG.0K.304.CLAC40Z Equivalent & Substitute Parts

Part Overview

The FGG.0K.304.CLAC40Z is a 4-position circular connector plug manufactured by LEMO, featuring male pins with solder cup termination. This connector is designed for applications requiring IP66/IP68 ingress protection with push-pull fastening and shielded construction. The part is currently active in production with 960 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange based on electrical and mechanical compatibility.

Substiute Parts

FGG.0K.304.CLAC40Z

LEMOIn Stock: 1012FGG.0K.304.CLAC40Z Datasheet

Current PartRFQ

S20K0C-P04MFG0-400S

ODUIn Stock: 990S20K0C-P04MFG0-400S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part S20K0C-P04MFG0-400S from ODU is classified as an equivalent based on the following critical parameters:

Matching Parameters:

• Connector type: Plug with male pins
• Position count: 4
• Termination method: Solder cup
• Fastening mechanism: Push-pull
• Shell material: Brass with chrome finish
• Contact finish: Gold plating
• Shielding: Shielded construction
• Insert material: PEEK
• Compliance: ROHS3 compliant, REACH unaffected
• Ingress protection: IP68 (exceeds IP66/IP68 requirement)

Allowable Variations:

• Current rating: 7.5A (substitute) vs. 7A (main part) — substitute exceeds requirement
• Operating temperature: -40°C ~ 120°C (substitute) vs. -55°C ~ 200°C (main part) — reduced range in substitute
• Cable opening tolerance: 4.60mm ~ 4.00mm (substitute) vs. 3.60mm ~ 4.00mm (main part) — minor overlap variation
• Shell finish detail: Chrome over nickel (substitute) vs. chrome (main part) — enhanced corrosion resistance in substitute

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain active production status and full ROHS3 compliance with REACH unaffected designation. The substitute part S20K0C-P04MFG0-400S provides equivalent electrical performance with a higher current rating of 7.5A, suitable for applications requiring the 7A specification of the primary part.

Selection between these parts should account for operating temperature requirements. The main part FGG.0K.304.CLAC40Z supports the extended temperature range of -55°C ~ 200°C, while the substitute operates within -40°C ~ 120°C. Applications requiring operation below -40°C or above 120°C must use the primary LEMO part.

The substitute part includes strain relief features and enhanced shell finish (chrome over nickel) providing additional corrosion resistance. Cable opening tolerances overlap substantially, with the substitute accommodating the full range of the primary part within its 4.60mm ~ 4.00mm specification.

Frequently Asked Questions (FAQ)

Q: Can S20K0C-P04MFG0-400S replace FGG.0K.304.CLAC40Z in all applications?

A: Substitution is valid for applications operating within -40°C ~ 120°C. Applications requiring the extended temperature range of -55°C ~ 200°C must use the primary FGG.0K.304.CLAC40Z part.

Q: What are the key compatibility factors for these connectors?

A: Both connectors share identical position count (4), termination method (solder cup), fastening mechanism (push-pull), shielding, and insert material (PEEK). These parameters ensure mechanical and electrical compatibility for mating and signal integrity.

Q: How do the current ratings compare?

A: The substitute part is rated for 7.5A, exceeding the primary part's 7A rating. This allows the substitute to handle the same current requirements with additional margin.

Q: Are there differences in ingress protection ratings?

A: The primary part is rated IP66/IP68, while the substitute is rated IP68. IP68 represents full dust protection and waterproof operation, meeting or exceeding the primary part's specification.

Q: What is the significance of the shell finish difference?

A: The primary part features chrome finish, while the substitute features chrome over nickel. The nickel underplate in the substitute provides enhanced corrosion resistance in harsh environments.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, with identical MSL rating of 1 (unlimited moisture sensitivity level).