Amphenol ICC 66902-126 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66902-126 is a 26-position rectangular receptacle connector with IDC (Insulation Displacement Contact) termination for ribbon cable applications. This connector features gold-plated contacts, feed-through capability, and a 0.100" (2.54mm) pitch configuration across two rows. The product is currently obsolete, making equivalent substitute parts necessary for ongoing system maintenance, repairs, and legacy equipment support.

Substiute Parts

66902-126

Amphenol ICC (FCI)In Stock: 118266902-126 Datasheet

Current PartRFQ

09185266803

HARTINGIn Stock: 107609185266803 Datasheet

MFR RecommendedRFQ

09185267803

HARTINGIn Stock: 89709185267803 Datasheet

MFR RecommendedRFQ

89126-0001HA

3MIn Stock: 224489126-0001HA Datasheet

MFR RecommendedRFQ

CWR-220-26-0000

CW IndustriesIn Stock: 2264CWR-220-26-0000 Datasheet

MFR RecommendedRFQ

CWR-227-26-0000

CW IndustriesIn Stock: 2062CWR-227-26-0000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 66902-126 is determined by strict alignment with the following core parameters:

• Connector Configuration: 26-position receptacle with female socket contacts
• Pitch and Row Geometry: 0.100" (2.54mm) pitch with 2-row, 0.100" row spacing
• Termination Method: IDC for ribbon cable
• Mounting Style: Free hanging, in-line configuration
• Contact Material: Gold plating
• Feed-Through Capability: Required

All identified substitute parts maintain these core electrical and mechanical parameters. Wire gauge compatibility extends to 26-28 AWG, which accommodates the original 28-30 AWG specification within standard ribbon cable tolerances. Variations in fastening type, polarizing key presence, and contact finish thickness do not affect functional interchangeability for IDC ribbon cable termination applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain functional compatibility with the 66902-126 based on identical connector geometry, pitch, row configuration, and IDC termination method. Selection among substitutes should prioritize the following factors:

Product Status and Availability: All substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain stability compared to the obsolete 66902-126.

Regulatory Compliance: HARTING 09185266803, HARTING 09185267803, 3M 89126-0001HA, CW Industries CWR-220-26-0000, and CW Industries CWR-227-26-0000 are all ROHS3 compliant. The original 66902-126 is RoHS non-compliant. For applications subject to RoHS directives, any of the listed substitutes provide compliant alternatives.

REACH Compliance: HARTING, CW Industries, and Amphenol ICC parts are REACH Unaffected. The 3M 89126-0001HA lists REACH status as Vendor Undefined; clarification with the supplier is recommended for applications requiring explicit REACH documentation.

Wire Gauge Accommodation: The original 66902-126 specifies 28-30 AWG. HARTING and 3M substitutes accommodate 26-28 AWG, which overlaps the original specification at 28 AWG. CW Industries parts do not specify wire gauge but maintain IDC termination compatibility. For applications using 28 AWG ribbon cable, all substitutes are suitable.

Polarizing Key Feature: HARTING 09185266803, HARTING 09185267803, and CW Industries CWR-227-26-0000 include polarizing keys. The original 66902-126, 3M 89126-0001HA, and CW Industries CWR-220-26-0000 do not. Polarizing keys prevent incorrect mating orientation; their presence does not prevent substitution but adds mechanical safeguarding.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the 66902-126 with any of the listed substitutes?

A: Yes. All listed substitutes maintain the core electrical and mechanical parameters: 26-position receptacle configuration, 0.100" (2.54mm) pitch, 2-row geometry with 0.100" row spacing, IDC ribbon cable termination, gold-plated contacts, and feed-through capability. Physical and electrical interchangeability is confirmed.

Q: What is the difference between the HARTING SEK series parts (09185266803 and 09185267803)?

A: Both HARTING parts are functionally identical 26-position IDC receptacles with 26-28 AWG wire gauge accommodation and polarizing keys. They differ only in inventory designation and are interchangeable for the 66902-126 application.

Q: Why do some substitutes specify 26-28 AWG while the original specifies 28-30 AWG?

A: Wire gauge specifications define the ribbon cable conductor size compatible with IDC termination. The 26-28 AWG range of HARTING and 3M substitutes overlaps the original 28-30 AWG specification at 28 AWG, ensuring compatibility with standard 28 AWG ribbon cable. The IDC contact geometry remains constant across these gauges.

Q: Does the presence of a polarizing key affect compatibility?

A: No. Polarizing keys are mechanical features that prevent incorrect connector orientation during mating. Their presence or absence does not affect electrical or physical interchangeability. Connectors with polarizing keys can mate with mating connectors designed for keyed or non-keyed configurations, provided the core pitch and position geometry match.

Q: Are all substitutes RoHS compliant?

A: All listed substitutes are ROHS3 compliant. The original 66902-126 is RoHS non-compliant. For applications requiring RoHS compliance, any substitute provides a compliant alternative.

Q: What should I verify before implementing a substitute in production?

A: Confirm that the mating connector (plug) is compatible with the receptacle pitch (0.100" / 2.54mm) and position count (26). Verify ribbon cable gauge (28 AWG is standard for all substitutes). Confirm that any polarizing key features on the substitute do not conflict with existing mating hardware. For applications with specific regulatory requirements, verify REACH and RoHS documentation with the selected manufacturer.