Amphenol ICC 66925-520 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66925-520 is a 40-position receptacle connector featuring 0.100" (2.54mm) pitch, through-hole right-angle mounting, and gold-plated mating contacts. This connector is part of the Dubox™ series and maintains active product status. Substitute parts are identified to address inventory availability, specific application requirements, or alternative manufacturing sources while maintaining core electrical and mechanical compatibility.

Substiute Parts

66925-520

Amphenol ICC (FCI)In Stock: 111566925-520 Datasheet

Current PartRFQ

BCS-120-T-D-HE

Samtec Inc.In Stock: 990BCS-120-T-D-HE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Samtec Inc. BCS-120-T-D-HE qualifies as a substitute for the Amphenol ICC 66925-520 based on the following critical parameters:

• Connector Type & Contact Type: Both are receptacle connectors with female socket contacts
• Position Count & Pitch: Both feature 40 positions at 0.100" (2.54mm) mating pitch
• Row Configuration: Both use 2-row configuration with 0.100" (2.54mm) row spacing
• Mounting & Termination: Both employ through-hole, right-angle mounting with solder termination
• Fastening Mechanism: Both utilize push-pull fastening
• Flammability & MSL: Both meet UL94 V-0 and MSL 1 (Unlimited) requirements
• Contact Geometry: Both feature square contact shapes

Substitution is valid where these core parameters align. Differences in contact finish material (gold vs. tin), insulation material composition, and specific electrical ratings must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

Amphenol ICC 66925-520 is appropriate for applications where gold-plated mating contacts are specified or required for enhanced corrosion resistance and contact reliability in low-signal applications. The part maintains active product status with established supply availability.

Samtec Inc. BCS-120-T-D-HE is appropriate for applications requiring ROHS3 compliance, defined operating temperature range (-55°C ~ 125°C), and specified electrical ratings (4.6A per contact, 475VAC). The tin-plated mating contacts and phosphor bronze contact material provide alternative performance characteristics. This part also maintains active product status.

Selection between these parts depends on compliance requirements, contact finish specifications, and whether defined electrical ratings are necessary for the application. Both parts meet UL94 V-0 flammability and MSL 1 requirements.

Frequently Asked Questions (FAQ)

Q: Can the Samtec BCS-120-T-D-HE directly replace the Amphenol ICC 66925-520 in existing designs?

A: Direct replacement is possible where the application does not require gold-plated mating contacts and where the tin finish is acceptable. The core mechanical and electrical interfaces are compatible. Physical dimensions differ slightly (insulation height and contact post length), which must be verified against PCB layout constraints.

Q: What is the primary difference in contact finish between these parts?

A: The Amphenol ICC 66925-520 features gold-plated mating contacts (30.0µin thickness), while the Samtec BCS-120-T-D-HE uses tin-plated mating contacts. Gold plating provides superior corrosion resistance and is preferred for low-signal or high-reliability applications. Tin plating is suitable for general-purpose applications and is more cost-effective.

Q: Does the Samtec part meet RoHS requirements?

A: Yes, the Samtec BCS-120-T-D-HE is ROHS3 compliant. The Amphenol ICC 66925-520 is RoHS non-compliant. This is a critical distinction for applications subject to RoHS regulations.

Q: Are there dimensional compatibility concerns?

A: Yes. The insulation height differs (0.240" vs. 0.210") and contact post length differs (0.115" vs. 0.125"). These variations must be verified against PCB design specifications, particularly for right-angle mounting clearances and mating depth requirements.

Q: What are the electrical rating differences?

A: The Samtec BCS-120-T-D-HE provides specified electrical ratings: 4.6A per contact and 475VAC. The Amphenol ICC 66925-520 does not specify these ratings in the provided data. Applications requiring defined electrical performance should reference the Samtec part specifications.

Q: Which part should be selected for new designs?

A: For new designs, the Samtec BCS-120-T-D-HE is recommended where ROHS3 compliance is required or where defined operating temperature range and electrical ratings are necessary. The Amphenol ICC 66925-520 remains suitable for applications where gold contact finish is specified or where RoHS compliance is not a requirement.