FGA.0B.303.CLAD52Z Equivalent & Substitute Parts

Part Overview

The FGA.0B.303.CLAD52Z is a 3-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 932 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability in applications where the primary connector becomes unavailable or when design requirements permit alternative manufacturers.

Substiute Parts

FGA.0B.303.CLAD52Z

LEMOIn Stock: 960FGA.0B.303.CLAD52Z Datasheet

Current PartRFQ

S20LAC-P03MJG0-520S

ODUIn Stock: 1052S20LAC-P03MJG0-520S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FGA.0B.303.CLAD52Z is determined by strict alignment of the following parameters:

Critical Matching Parameters:

• Connector type (Plug, Male Pins)
• Number of positions (3)
• Termination method (Solder Cup)
• Fastening mechanism (Push-Pull)
• Contact finish (Gold)
• Shielding configuration (Shielded)
• Insert material (PEEK)
• RoHS compliance status (ROHS3 Compliant)

Allowable Variation Parameters:

• Shell material and finish (brass with chrome or chrome over nickel acceptable)
• Current rating (7.5A minimum acceptable for 8A rated applications)
• Operating temperature range (lower range acceptable if application requirements permit)
• Cable opening dimensions (within specified tolerance bands)

The substitute part S20LAC-P03MJG0-520S from ODU meets these criteria with equivalent functional characteristics and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the FGA.0B.303.CLAD52Z and S20LAC-P03MJG0-520S maintain active production status and full ROHS3 compliance with REACH unaffected designation. Selection between these parts depends on application-specific requirements:

The FGA.0B.303.CLAD52Z is specified for applications requiring the extended operating temperature range of -55°C to 250°C and the full 8A current rating. This part is suitable for high-temperature industrial environments and applications with demanding thermal cycling requirements.

The S20LAC-P03MJG0-520S from ODU is suitable for applications operating within -40°C to 120°C and where 7.5A current capacity is sufficient. This substitute provides equivalent shielding, gold-plated contacts, and push-pull fastening with the addition of strain relief features. Cable opening tolerance is slightly narrower at the lower end (4.00mm minimum versus 4.20mm).

Both connectors share identical connector architecture (3-position plug, male pins, solder cup termination), contact material composition, and insert material (PEEK), ensuring mechanical and electrical compatibility within their respective operating parameters.

Frequently Asked Questions (FAQ)

Q: Can S20LAC-P03MJG0-520S be used as a direct replacement for FGA.0B.303.CLAD52Z?

A: Direct substitution is permissible only when the application operates within -40°C to 120°C and does not exceed 7.5A current draw. The connector architecture, termination method, and contact finish are functionally equivalent. If the application requires the extended temperature range (-55°C to 250°C) or full 8A rating of the original part, substitution is not appropriate.

Q: What are the key differences between these two connectors?

A: The primary differences are operating temperature range (FGA.0B.303.CLAD52Z: -55°C to 250°C versus S20LAC-P03MJG0-520S: -40°C to 120°C), current rating (8A versus 7.5A), shell finish (chrome versus chrome over nickel), and cable opening minimum tolerance (4.20mm versus 4.00mm). Both maintain identical connector type, position count, termination method, and shielding configuration.

Q: Are both parts RoHS compliant?

A: Yes, both FGA.0B.303.CLAD52Z and S20LAC-P03MJG0-520S are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of the cable opening dimensions?

A: Cable opening dimensions specify the acceptable range of cable diameters that can be accommodated by the connector backshell. The FGA.0B.303.CLAD52Z accepts 4.20mm to 5.20mm cable diameter, while the S20LAC-P03MJG0-520S accepts 4.00mm to 5.20mm. If your application uses cable within the 4.00mm to 4.20mm range, only the ODU part is suitable.

Q: Do both connectors use the same insert material?

A: Yes, both connectors use polyetheretherketone (PEEK) as the insert material, ensuring consistent dielectric properties and mechanical stability.

Q: What does IP50 ingress protection rating mean?

A: IP50 indicates dust protection. The connector is protected against limited dust ingress that does not interfere with normal operation. Both parts carry this rating.