Amphenol ICC 66902-250 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66902-250 is a 50-position rectangular receptacle connector designed for IDC (Insulation Displacement Contact) termination with ribbon cable. This connector features a Quickie™ series design with gold or gold GXT™ contact finish, suitable for applications requiring 28-30 AWG wire gauge connections. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and procurement planning.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	50
Pitch	0.100" (2.54mm)
Number of Rows	2
Row Spacing	0.100" (2.54mm)
Cable Termination	IDC
Wire Gauge	28-30 AWG
Contact Type	Female Socket
Mounting Type	Free Hanging (In-Line)
Contact Finish	Gold or Gold, GXT™
Features	Feed Through, Polarizing Key, Strain Relief

Substitute Part Grouping Explanation

Substitution eligibility for the 66902-250 is determined by strict alignment with the following critical parameters:

50-position configuration with 2-row layout at 0.100" (2.54mm) pitch and row spacing
IDC cable termination method for ribbon cable
Female socket contact type in receptacle configuration
Free hanging in-line mounting orientation
Gold contact finish with compatible thickness specifications
Presence of feed through, polarizing key, and strain relief features

Substitute parts must maintain identical electrical and mechanical interfaces to ensure direct compatibility without design modification or adapter requirements.

Parameter Comparison

Parameter	66902-250 (Main)	66902-250LF (Direct)	CWR-217-50-0000 (Alternative)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	CW Industries
Product Status	Obsolete	Active	Active
Number of Positions	50	50	50
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2
Row Spacing	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Cable Termination	IDC	IDC	IDC
Wire Gauge	28-30 AWG	28-30 AWG	Not specified
Contact Type	Female Socket	Female Socket	Female Socket
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Finish	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)	10.0µin (0.25µm)
Features	Feed Through, Polarizing Key, Strain Relief	Feed Through, Polarizing Key, Strain Relief	Feed Through, Polarizing Key, Strain Relief
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant
Packaging	Not specified	Tube	Bulk
Inventory Status	1100 Pcs New Original In Stock	1246 Pcs New Original In Stock	1050 Pcs New Original In Stock

Engineering Selection Recommendations

The 66902-250LF represents the primary substitute for the obsolete 66902-250. Both parts are manufactured by Amphenol ICC (FCI) and share identical electrical and mechanical specifications. The 66902-250LF is currently in active production status with RoHS compliance certification, addressing regulatory requirements that the original part does not meet. This part maintains the same contact finish thickness and all functional features, ensuring direct compatibility in existing designs.

The CWR-217-50-0000 from CW Industries provides an alternative rectangular receptacle connector meeting the same 50-position, 2-row, 0.100" pitch configuration with IDC termination. This part is ROHS3 compliant and maintains all required features. The contact finish thickness is reduced to 10.0µin (0.25µm) compared to the original specification of 30.0µin (0.76µm). Wire gauge specification is not provided for this alternative.

Selection between the 66902-250LF and CWR-217-50-0000 depends on compliance requirements, contact finish thickness tolerance, and wire gauge specifications for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the 66902-250LF be used as a direct replacement for the 66902-250?

A: Yes. Both parts share identical electrical and mechanical parameters including position count, pitch, row spacing, IDC termination method, contact type, and feature set. The primary difference is product status and RoHS compliance.

Q: What is the significance of the contact finish thickness difference between the 66902-250 and CWR-217-50-0000?

A: The 66902-250 specifies 30.0µin (0.76µm) contact finish thickness, while the CWR-217-50-0000 specifies 10.0µin (0.25µm). This difference affects contact durability and wear characteristics. Applications with high mating cycle requirements should verify compatibility with the reduced thickness specification.

Q: Are there packaging differences between the substitute parts?

A: Yes. The 66902-250LF is supplied in tube packaging, while the CWR-217-50-0000 is supplied in bulk packaging. Packaging selection may affect procurement, handling, and storage requirements.

Q: Does the CWR-217-50-0000 support 28-30 AWG wire gauge?

A: Wire gauge specification is not provided for the CWR-217-50-0000. Verification with the manufacturer is required to confirm compatibility with 28-30 AWG ribbon cable before selection.

Q: What compliance certifications apply to each substitute part?

A: The 66902-250LF is RoHS compliant. The CWR-217-50-0000 is ROHS3 compliant. Both parts are REACH unaffected and classified under ECCN EAR99.

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