EGG.1K.305.CLL Equivalent & Substitute Parts

Part Overview

The EGG.1K.305.CLL is a 5-position circular connector receptacle manufactured by LEMO, featuring female sockets with solder cup termination. This connector is designed for panel mount applications with bulkhead rear side nut fastening and operates across an extended temperature range of -55°C to 200°C. The part is actively produced and maintains full RoHS3 compliance. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when inventory requirements necessitate additional suppliers.

Substiute Parts

EGG.1K.305.CLL

LEMOIn Stock: 885EGG.1K.305.CLL Datasheet

Current PartRFQ

MMI-M1RSG05S-IP67

Adam TechIn Stock: 1114MMI-M1RSG05S-IP67 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EGG.1K.305.CLL is determined by the following critical parameters:

• Connector type: Receptacle with female sockets
• Number of positions: 5
• Termination method: Solder cup
• Mounting configuration: Panel mount with bulkhead rear side nut fastening
• Fastening mechanism: Push-pull
• Shell material and finish: Brass with chrome plating
• Contact finish: Gold plating on mating surfaces
• Compliance: RoHS3 compliant

The substitute part MMI-M1RSG05S-IP67 satisfies the core functional requirements of connector type, position count, termination, mounting, and fastening. However, differences exist in ingress protection rating, operating temperature range, current rating, and shielding configuration. These differences must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the EGG.1K.305.CLL and MMI-M1RSG05S-IP67 are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Selection between these parts depends on application-specific constraints:

The EGG.1K.305.CLL provides higher current capacity (9A versus 7A), extended operating temperature range (-55°C to 200°C versus -55°C to 150°C), enhanced ingress protection (IP66/IP68 versus IP67), and shielded construction. These characteristics make it suitable for high-temperature environments, high-current applications, and installations requiring superior environmental sealing and electromagnetic interference mitigation.

The MMI-M1RSG05S-IP67 functions as a substitute where the lower current rating and reduced temperature ceiling are acceptable, and where shielding is not required. Both parts share identical connector architecture, position count, termination method, and mounting configuration, ensuring mechanical and electrical compatibility within their respective parameter limits.

Frequently Asked Questions (FAQ)

Q: Can MMI-M1RSG05S-IP67 directly replace EGG.1K.305.CLL in all applications?

A: Direct replacement is possible only when the application operates within the substitute part's specifications: maximum 7A current, maximum 150°C operating temperature, and does not require shielding or IP66/IP68 ingress protection. The substitute provides IP67 protection, which is lower than the main part's IP66/IP68 rating.

Q: What is the significance of the shielding difference?

A: The EGG.1K.305.CLL features shielded construction, while MMI-M1RSG05S-IP67 is unshielded. Shielding reduces electromagnetic interference susceptibility. Applications in electromagnetically noisy environments or those requiring signal integrity protection should retain the shielded main part.

Q: Are there packaging differences between these parts?

A: Yes. The EGG.1K.305.CLL is supplied in bulk packaging, while MMI-M1RSG05S-IP67 is supplied in bag packaging. This affects inventory management and handling procedures but does not impact electrical or mechanical performance.

Q: What does the shell size designation "305" mean for the main part?

A: The shell size 305 is a LEMO standard designation for this connector series. The substitute part does not specify an equivalent shell size parameter in the provided data, indicating potential dimensional differences. Physical verification is necessary if mechanical fit is critical.

Q: Are both parts suitable for high-temperature applications?

A: The EGG.1K.305.CLL operates to 200°C, making it suitable for high-temperature environments. The MMI-M1RSG05S-IP67 operates to 150°C maximum, limiting its use in applications exceeding this temperature. Selection must align with the specific thermal requirements of the application.