ECA.1B.304.CLL Equivalent & Substitute Parts

Part Overview

The ECA.1B.304.CLL is a 4-position circular connector receptacle manufactured by LEMO, featuring female sockets with solder cup termination. This connector is designed for panel mount applications with push-pull fastening and operates across an extended temperature range of -55°C to 250°C. The part maintains Active product status with 807 units in current inventory. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate alternative connector configurations within compatible electrical and mechanical parameters.

Substiute Parts

ECA.1B.304.CLL

LEMOIn Stock: 888ECA.1B.304.CLL Datasheet

Current PartRFQ

G51LAC-P04LJG0-0000

ODUIn Stock: 963G51LAC-P04LJG0-0000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECA.1B.304.CLL is determined by strict alignment of the following critical parameters:

• Connector Type: Receptacle with Female Sockets
• Number of Positions: 4
• Termination: Solder Cup
• Fastening Mechanism: Push-Pull
• Mounting Configuration: Panel Mount
• Shell Material: Brass with Chrome finish
• Contact Finish: Gold plating on mating surfaces
• Shielding: Shielded configuration
• Insert Material: PEEK (Polyetheretherketone)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The substitute part G51LAC-P04LJG0-0000 (ODU MINI-SNAP® L series) satisfies these core substitution criteria. Variations in current rating, operating temperature range, and shell finish specifications (chrome over nickel versus chrome) represent acceptable parameter deviations within the scope of equivalent component selection for this connector category.

Parameter Comparison

Engineering Selection Recommendations

Both the ECA.1B.304.CLL and G51LAC-P04LJG0-0000 maintain Active product status and satisfy ROHS3 compliance and REACH unaffected regulatory requirements. Selection between these parts is determined by application-specific electrical and thermal constraints.

The ECA.1B.304.CLL supports a 10A current rating and operates across -55°C to 250°C, making it suitable for high-temperature and high-current applications. The G51LAC-P04LJG0-0000 operates within -40°C to 120°C with a 7.5A current rating, appropriate for industrial, medical, military, and testing equipment applications within these thermal and electrical boundaries. The ODU substitute features chrome over nickel shell finish compared to the LEMO part's chrome finish, providing enhanced corrosion resistance in certain environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can G51LAC-P04LJG0-0000 be used as a direct replacement for ECA.1B.304.CLL?

A: G51LAC-P04LJG0-0000 is functionally equivalent for applications operating within -40°C to 120°C and requiring maximum 7.5A current. Applications exceeding these parameters require the ECA.1B.304.CLL.

Q: What are the key differences between these connectors?

A: The primary differences are current rating (10A versus 7.5A), operating temperature range (-55°C to 250°C versus -40°C to 120°C), and shell finish specification (chrome versus chrome over nickel). Both maintain identical connector type, position count, termination method, and shielding configuration.

Q: Are both parts available in the same packaging?

A: Both parts are supplied in Bulk packaging. ECA.1B.304.CLL has 807 units in current inventory; G51LAC-P04LJG0-0000 has 912 units in current inventory.

Q: Do both connectors meet the same regulatory standards?

A: Yes. Both parts are ROHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity level ratings.

Q: What applications are suitable for each connector?

A: ECA.1B.304.CLL is suitable for applications requiring extended temperature operation and higher current capacity. G51LAC-P04LJG0-0000 is specified for industrial, medical, military, and testing equipment applications within its thermal and electrical ratings.