FGG.1K.302.CLAC55Z Equivalent & Substitute Parts

Part Overview

The FGG.1K.302.CLAC55Z is a 2-position circular connector plug with male pins and solder cup termination, manufactured by LEMO. This connector is designed for applications requiring shielded, waterproof connections with push-pull fastening. The part is currently active in production with 782 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component sourcing, inventory management, or design flexibility while maintaining connector compatibility and performance specifications.

Key Parameters

Parameter	Value
Connector Type	Plug, Male Pins
Number of Positions	2
Termination	Solder Cup
Fastening Type	Push-Pull
Shell Material	Brass
Shell Finish	Chrome
Contact Finish - Mating	Gold
Shielding	Shielded
Current Rating	15A
Ingress Protection	IP66/IP68
Operating Temperature	-55°C ~ 200°C
Insert Material	Polyetheretherketone (PEEK)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the FGG.1K.302.CLAC55Z is determined by the following critical parameters:

Connector Configuration: 2-position plug with male pins and solder cup termination
Fastening Mechanism: Push-pull coupling system
Electrical Performance: Shielded design with gold-plated mating contacts
Environmental Sealing: IP68 waterproof rating minimum
Material Compatibility: Brass shell with PEEK insert
Regulatory Compliance: ROHS3 compliant status

The substitute part S21K0C-P02MPH0-550S meets these core substitution criteria. Both connectors share identical connector type, position count, termination method, fastening type, shell material, contact finish, shielding configuration, insert material, and regulatory compliance status.

Parameter Comparison

Parameter	FGG.1K.302.CLAC55Z (LEMO)	S21K0C-P02MPH0-550S (ODU)	Compatibility Notes
Connector Type	Plug, Male Pins	Plug, Male Pins	Identical
Number of Positions	2	2	Identical
Termination	Solder Cup	Solder Cup	Identical
Fastening Type	Push-Pull	Push-Pull	Identical
Shell Material	Brass	Brass	Identical
Shell Finish	Chrome	Chrome over Nickel	Both provide corrosion resistance
Contact Finish - Mating	Gold	Gold	Identical
Shielding	Shielded	Shielded	Identical
Current Rating	15A	12A	ODU rated lower; verify application requirements
Ingress Protection	IP66/IP68	IP68	ODU meets IP68 waterproof standard
Operating Temperature	-55°C ~ 200°C	-40°C ~ 120°C	LEMO supports extended temperature range
Insert Material	Polyetheretherketone (PEEK)	Polyetheretherketone (PEEK)	Identical
Cable Opening	0.201" ~ 0.217" (5.10mm ~ 5.50mm)	0.197" ~ 0.217" (5.00mm ~ 5.50mm)	Overlapping range; compatible with standard cable gauges
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Product Status	Active	Active	Both in active production

Engineering Selection Recommendations

Both the FGG.1K.302.CLAC55Z and S21K0C-P02MPH0-550S are ROHS3 compliant and maintain active production status. Selection between these parts depends on application-specific requirements:

The FGG.1K.302.CLAC55Z supports a higher current rating of 15A and an extended operating temperature range of -55°C to 200°C, making it suitable for high-temperature or high-current applications.

The S21K0C-P02MPH0-550S is rated for 12A maximum current and operates within -40°C to 120°C, with IP68 waterproof certification and additional strain relief features. This part is appropriate for applications within its specified thermal and electrical limits.

Both connectors meet IP68 waterproof standards and share identical core specifications for connector type, position count, termination method, fastening mechanism, shell material, contact finish, shielding, and insert material. Cable opening specifications overlap within the 5.00mm to 5.50mm range, ensuring compatibility with standard cable gauges.

Frequently Asked Questions (FAQ)

Q: Can S21K0C-P02MPH0-550S directly replace FGG.1K.302.CLAC55Z in all applications?

A: Direct substitution is possible for applications operating within -40°C to 120°C and requiring maximum 12A current. Applications exceeding these parameters require the FGG.1K.302.CLAC55Z due to its extended temperature range (-55°C to 200°C) and higher current rating (15A).

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

A: The primary differences are current rating (15A vs. 12A), operating temperature range (-55°C to 200°C vs. -40°C to 120°C), and shell finish specification (Chrome vs. Chrome over Nickel). All other electrical and mechanical parameters are equivalent.

Q: Are both connectors compatible with the same mating receptacles?

A: Both connectors use identical push-pull fastening mechanisms, 2-position configuration, and male pin design. Mechanical compatibility with mating receptacles depends on the specific receptacle series and shell size specifications.

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

A: Cable opening ranges define the acceptable cable jacket diameters for proper strain relief and sealing. The overlapping range (5.00mm to 5.50mm) ensures both connectors accommodate standard cable gauges used in industrial and medical applications.

Q: Are there any compliance or certification differences?

A: Both connectors are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and identical HTSUS codes, indicating equivalent regulatory status for export and procurement purposes.

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