FGA.1B.307.CLAD42Z Equivalent & Substitute Parts

Part Overview

The FGA.1B.307.CLAD42Z is a 7-position circular connector plug with male pins and solder cup termination, manufactured by LEMO. This connector is designed for applications requiring shielded, push-pull fastening with gold-plated mating contacts and operates across an extended temperature range of -55°C to 250°C. The part is currently active in production with 903 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit interchangeability based on electrical and mechanical compatibility.

Substiute Parts

FGA.1B.307.CLAD42Z

LEMOIn Stock: 983FGA.1B.307.CLAD42Z Datasheet

Current PartRFQ

S21LAC-P07MFG0-420S

ODUIn Stock: 1171S21LAC-P07MFG0-420S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FGA.1B.307.CLAD42Z is determined by strict alignment of the following critical parameters:

• Connector Type & Position Count: Both main and substitute parts must be 7-position male plug connectors with solder cup termination
• Fastening Mechanism: Push-pull fastening type must be maintained for mechanical compatibility
• Contact System: Gold-plated mating contacts are required for electrical performance and corrosion resistance
• Shielding: Shielded configuration must be preserved for EMI protection
• Termination Method: Solder cup termination ensures compatibility with existing assembly processes
• Insert Material: PEEK insert material provides consistent dielectric properties
• Current Rating: Substitute parts must support minimum 7A current capacity
• Cable Opening Range: Substitute parts must accommodate cable diameters within or overlapping the specified range
• Compliance: RoHS3 compliance and REACH unaffected status must be maintained

The substitute part S21LAC-P07MFG0-420S (ODU MINI-SNAP® L series) meets these criteria and is classified as an equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the FGA.1B.307.CLAD42Z and S21LAC-P07MFG0-420S are active production parts with ROHS3 compliance and REACH unaffected status. Selection between these parts depends on application-specific temperature requirements:

The FGA.1B.307.CLAD42Z supports an extended operating temperature range of -55°C to 250°C, making it suitable for high-temperature applications and extreme environmental conditions.

The S21LAC-P07MFG0-420S operates within -40°C to 120°C, which is appropriate for industrial, medical, military, and testing equipment applications within this temperature envelope. This substitute offers a higher current rating of 7.5A compared to the 7A rating of the main part, providing additional current capacity margin.

Both parts maintain identical connector architecture, fastening mechanism, contact finish, shielding, and termination method. Cable opening ranges overlap substantially, with the ODU part accommodating slightly smaller minimum cable diameters (3.00mm versus 3.10mm).

Frequently Asked Questions (FAQ)

Q: Can S21LAC-P07MFG0-420S be used as a direct replacement for FGA.1B.307.CLAD42Z?

A: Yes, for applications operating within the -40°C to 120°C temperature range. Both connectors share identical 7-position male plug configuration, solder cup termination, push-pull fastening, gold-plated contacts, and PEEK inserts. Mechanical and electrical compatibility is maintained.

Q: What is the primary difference between these two parts?

A: The main difference is operating temperature range. The LEMO part supports -55°C to 250°C, while the ODU part supports -40°C to 120°C. The ODU part also provides a higher current rating (7.5A versus 7A) and includes strain relief features.

Q: Are cable opening dimensions compatible?

A: The cable opening ranges are substantially overlapping. LEMO specifies 3.10mm to 4.20mm, while ODU specifies 3.00mm to 4.20mm. Cables within the 3.10mm to 4.20mm range are compatible with both connectors.

Q: Do both parts meet regulatory compliance requirements?

A: Yes. Both the FGA.1B.307.CLAD42Z and S21LAC-P07MFG0-420S are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components.

Q: What is the difference in shell finish between these connectors?

A: The LEMO part features chrome plating on brass, while the ODU part features chrome over nickel plating on brass. Both finishes provide corrosion resistance and are suitable for industrial applications.

Q: Can these connectors be intermated?

A: No. These are plug connectors. Intermating requires a compatible receptacle connector from the same manufacturer series. Verify receptacle compatibility before substitution.