Amphenol ICC 66951-009 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66951-009 is a 9-position receptacle connector with 0.100" (2.54mm) pitch, designed for through-hole board-to-board applications. This connector features gold-plated mating contacts and tin-plated posts, operating across -65°C to 125°C with UL94 V-0 flammability rating. The part is currently active in production with 1096 units in stock. Alternative equivalent parts are available to support supply chain flexibility, design revisions, or compliance requirements across different manufacturing standards.

Substiute Parts

66951-009

Amphenol ICC (FCI)In Stock: 114266951-009 Datasheet

Current PartRFQ

66951-009LF

Amphenol ICC (FCI)In Stock: 150566951-009LF Datasheet

DirectRFQ

534237-7

TE Connectivity AMP ConnectorsIn Stock: 3013534237-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 66951-009 is determined by strict alignment across the following critical parameters: connector type (receptacle), contact type (female socket), number of positions (9), mating pitch (0.100"), mounting method (through hole), termination type (solder), fastening mechanism (push-pull), and operating temperature range (-65°C to 125°C).

66951-009LF qualifies as a direct substitute. This part is manufactured by the same supplier (Amphenol ICC) within the same product series (Dubox™, BergCon® PV™) and maintains identical electrical and mechanical specifications. The primary distinction is RoHS compliance status: 66951-009LF is RoHS Compliant and REACH Affected, whereas the original 66951-009 is RoHS non-compliant.

534237-7 qualifies as a manufacturer-recommended equivalent from TE Connectivity AMP Connectors. This part matches all critical substitution parameters: 9-position receptacle, 0.100" pitch, through-hole solder termination, push-pull fastening, and identical operating temperature range. Mechanical dimensions remain compatible within standard tolerances (insulation height 0.340" vs. 0.325", contact post length 0.115" vs. 0.142"). Both parts are ROHS3 Compliant and REACH Affected.

Parameter Comparison

Engineering Selection Recommendations

66951-009LF is the preferred direct substitute when RoHS compliance is required. This part maintains identical specifications to the original 66951-009 while meeting RoHS Compliant and REACH Affected standards. Both parts are manufactured by Amphenol ICC within the same product series, ensuring mechanical and electrical compatibility without design modification.

534237-7 is suitable as a cross-manufacturer equivalent when supply from Amphenol ICC is constrained. This TE Connectivity part meets all critical functional requirements and operates within the same temperature range. The contact material differs (phosphor bronze vs. brass), and mechanical dimensions show minor variations (insulation height +0.015", contact post length -0.027"). These variations remain within standard connector tolerance ranges for board-to-board applications. The part is ROHS3 Compliant and REACH Affected. Material flammability rating is not specified for this part.

Selection between 66951-009LF and 534237-7 depends on supply availability, compliance requirements, and design specifications. Both parts are active in production with adequate inventory levels.

Frequently Asked Questions (FAQ)

Q: Can 66951-009LF be used as a direct replacement for 66951-009?

A: Yes. Both parts are manufactured by Amphenol ICC within the same Dubox™/BergCon® PV™ series and maintain identical electrical and mechanical specifications. The primary difference is RoHS compliance status. No design modification is required.

Q: What are the key differences between 534237-7 and the original 66951-009?

A: Both parts share identical connector type, position count, pitch, mounting method, and operating temperature range. Differences include: manufacturer (TE Connectivity vs. Amphenol ICC), product series (AMPMODU Mod IV vs. Dubox™), contact material (phosphor bronze vs. brass), insulation height (+0.015"), and contact post length (-0.027"). These variations are within standard tolerance ranges for board-to-board connector applications.

Q: Are there any compatibility concerns when substituting 534237-7 for 66951-009?

A: The mating pitch (0.100"), number of positions (9), and fastening mechanism (push-pull) are identical, ensuring mechanical compatibility with existing mating connectors. The minor dimensional variations in insulation height and post length do not affect standard PCB layout or assembly processes. Verify contact material compatibility if the application involves specific environmental or corrosion requirements.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring RoHS compliance, specify 66951-009LF. For designs without RoHS constraints, either 66951-009LF or 534237-7 are acceptable based on supply availability and cost considerations.

Q: What is the moisture sensitivity level for these parts?

A: All three parts (66951-009, 66951-009LF, and 534237-7) have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no special moisture handling or storage requirements.

Q: Are these parts suitable for automotive applications?

A: The 66951-009 and 66951-009LF are listed for automotive applications. The 534237-7 does not specify automotive applications in the provided data. Verify application suitability with the manufacturer if automotive qualification is required.