66527-518 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66527-518 is a 36-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board applications in through-hole, right-angle configurations. This connector features gold-plated mating contacts, tin-plated posts, and push-pull fastening. The part is currently active in production and widely used in automotive, industrial, telecommunications, and general-purpose applications. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative compliance profiles are required.

Substiute Parts

66527-518

Amphenol ICC (FCI)In Stock: 77666527-518 Datasheet

Current PartRFQ

5-532955-6

TE Connectivity AMP ConnectorsIn Stock: 10605-532955-6 Datasheet

MFR RecommendedRFQ

5-534204-3

TE Connectivity AMP ConnectorsIn Stock: 12015-534204-3 Datasheet

MFR RecommendedRFQ

532955-6

TE Connectivity AMP ConnectorsIn Stock: 1172532955-6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 66527-518 is determined by strict alignment with the following critical parameters: 36-position count, 0.100" (2.54mm) mating pitch, 2-row configuration with 0.100" row spacing, receptacle connector type with female socket contacts, board-to-board style, through-hole right-angle mounting, solder termination, push-pull fastening, gold mating contact finish, black insulation, and square contact geometry.

The identified substitute parts—5-532955-6, 5-534204-3, and 532955-6 from TE Connectivity AMP Connectors—satisfy all mandatory electrical and mechanical parameters. Variations exist in contact material composition (phosphor bronze versus brass), contact finish thickness specifications, and regulatory compliance status (RoHS compliance and REACH applicability). These variations do not affect functional interchangeability in standard applications where the core electrical and mechanical interface requirements are met.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—5-532955-6, 5-534204-3, and 532955-6—are functionally equivalent to the 66527-518 for standard board-to-board rectangular connector applications. Selection between these options depends on specific regulatory and compliance requirements:

For applications requiring RoHS compliance, 5-532955-6 and 5-534204-3 are the appropriate selections, as both carry RoHS Compliant status. The 5-534204-3 variant includes kinked pin termination in addition to solder termination, providing enhanced mechanical retention in through-hole PCB applications.

For applications where RoHS compliance is not mandated, 532955-6 remains a viable option with equivalent electrical and mechanical performance. This part carries RoHS non-compliant status and is subject to REACH regulations.

The 66527-518 itself is RoHS non-compliant and should be selected only when legacy system compatibility or specific design requirements necessitate the Dubox™ series connector or when RoHS compliance is not a project constraint.

Frequently Asked Questions (FAQ)

Q: Are the TE Connectivity AMPMODU Mod II connectors (5-532955-6, 5-534204-3, 532955-6) mechanically compatible with the Amphenol ICC Dubox™ 66527-518?

A: Yes. All substitute parts share identical mating pitch (0.100"), row spacing (0.100"), number of positions (36), mounting configuration (through-hole right angle), and contact geometry (square female sockets). Mechanical interchangeability is confirmed across all critical interface dimensions.

Q: What is the difference between 5-532955-6 and 532955-6?

A: Both parts are from the TE Connectivity AMPMODU Mod II series with identical electrical and mechanical specifications. The primary difference is regulatory status: 5-532955-6 is RoHS Compliant, while 532955-6 is RoHS non-compliant and subject to REACH regulations. Functionally, they are equivalent.

Q: Does the kinked pin termination on 5-534204-3 affect compatibility?

A: No. The kinked pin termination is an additional feature that enhances mechanical retention during PCB assembly. The part maintains full electrical and mechanical compatibility with standard solder termination variants. Kinked pin termination does not prevent use in applications designed for standard solder termination.

Q: What is the significance of the contact finish thickness variation between parts?

A: Contact finish thickness variations (15.0µin, 30.0µin) are within acceptable ranges for gold-plated mating contacts in standard rectangular connector applications. These variations do not affect electrical performance or contact reliability in typical operating conditions. Selection based on finish thickness is not required for functional substitution.

Q: Can I substitute the 66527-518 with any of these parts in a legacy design?

A: Electrical and mechanical substitution is supported. However, verify that your design does not include specific constraints tied to the Dubox™ series connector form factor, mounting footprint, or insulation height tolerance (0.240" for 66527-518 versus 0.238" for AMPMODU variants). Minor dimensional differences may require PCB layout verification.

Q: Which substitute part should I select for new designs?

A: For new designs, 5-532955-6 or 5-534204-3 are recommended due to RoHS Compliant status, ensuring alignment with current regulatory requirements and supply chain standards. Selection between these two depends on whether kinked pin termination is beneficial for your assembly process.