JBXFD1G03MCSDSMR Equivalent & Substitute Parts

Part Overview

The JBXFD1G03MCSDSMR is a 3-position circular connector plug manufactured by Souriau-Sunbank by Eaton. This male pin connector features crimp termination, push-pull fastening, and gold-plated mating contacts. The connector is actively produced and maintained in inventory, serving applications in industrial, instrumentation, medical, and telecommunications sectors. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when supply chain optimization is required.

Substiute Parts

JBXFD1G03MCSDSMR

Souriau-Sunbank by EatonIn Stock: 808JBXFD1G03MCSDSMR Datasheet

Current PartRFQ

FGG.1B.303.CYCD62

LEMOIn Stock: 872FGG.1B.303.CYCD62 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the JBXFD1G03MCSDSMR is determined by the following critical parameters:

Primary Substitution Criteria:

• Connector type: Plug with male pins
• Position count: 3 positions
• Termination method: Crimp
• Fastening mechanism: Push-pull
• Shell material: Brass construction
• Contact finish: Gold plating on mating surfaces
• Shielding: Shielded configuration
• Insert material: PEEK

Compliance Requirements:

• RoHS3 compliance
• UL94 V-0 flammability rating
• Moisture sensitivity level 1 (unlimited shelf life)
• REACH unaffected status

The substitute part FGG.1B.303.CYCD62 (LEMO) meets all primary substitution criteria and compliance requirements. Both connectors share identical connector type, position count, termination method, fastening type, shell material, contact finish, shielding, and insert material specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The JBXFD1G03MCSDSMR remains the primary selection when available. This part is actively produced, maintains 789 units in current inventory, and carries full specification documentation including 600V voltage rating and -40°C to 125°C operating temperature range.

Substitute Part Selection: The FGG.1B.303.CYCD62 (LEMO) is a qualified substitute when the primary part is unavailable. Both parts are ROHS3 compliant, carry UL94 V-0 flammability ratings, and maintain MSL 1 status. The LEMO substitute provides enhanced specifications in three areas: extended operating temperature range (-55°C to 250°C), improved ingress protection (IP50 versus IP40), and thicker gold plating (39.4µin versus 19.7µin).

Compliance Basis: Selection between these parts may be determined by application-specific requirements for operating temperature range, environmental protection level, or contact plating thickness. Both parts satisfy RoHS3, REACH, and flammability compliance requirements. The LEMO part does not specify voltage rating; applications requiring explicit 600V rating confirmation should retain the Souriau-Sunbank part.

Frequently Asked Questions (FAQ)

Q: Can FGG.1B.303.CYCD62 directly replace JBXFD1G03MCSDSMR in existing assemblies?

A: Yes. Both connectors share identical connector type (plug, male pins), position count (3), termination method (crimp), fastening type (push-pull), shell material (brass), contact finish (gold), shielding (shielded), and insert material (PEEK). Mechanical and electrical compatibility is established through these matching parameters.

Q: What are the differences between these two parts?

A: The primary differences are: (1) shell finish (chrome over nickel versus chrome), (2) operating temperature range (LEMO extends to -55°C and 250°C versus -40°C to 125°C), (3) ingress protection rating (IP50 versus IP40), (4) contact plating thickness (39.4µin versus 19.7µin), and (5) voltage rating specification (LEMO does not specify). The LEMO part provides enhanced environmental and thermal performance.

Q: Which part should be selected for high-temperature applications?

A: The FGG.1B.303.CYCD62 (LEMO) supports operating temperatures to 250°C, compared to 125°C maximum for the JBXFD1G03MCSDSMR. For applications exceeding 125°C, the LEMO substitute is required.

Q: Are both parts RoHS compliant?

A: Yes. Both JBXFD1G03MCSDSMR and FGG.1B.303.CYCD62 are ROHS3 compliant and carry REACH unaffected status.

Q: What is the significance of contact plating thickness difference?

A: The LEMO part provides 39.4µin (1.00µm) gold plating compared to 19.7µin (0.50µm) on the Souriau-Sunbank part. Thicker plating provides extended contact life and improved corrosion resistance in demanding environments.

Q: Does the IP50 rating on the LEMO part affect compatibility?

A: No. IP50 (dust protected) exceeds the IP40 specification of the primary part. The LEMO connector provides enhanced environmental protection and remains compatible for all applications requiring IP40 or lower protection levels.

Q: Are there packaging or inventory considerations?

A: The JBXFD1G03MCSDSMR maintains 789 units in current inventory. The FGG.1B.303.CYCD62 has 844 units available. Both are supplied in bulk packaging. Availability should be verified at time of procurement.