Amphenol ICC 66950-020 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 66950-020 is a 20-position receptacle connector from the Dubox™ series, designed for board-to-board applications with 0.100" (2.54mm) pitch through-hole mounting. This connector features gold-plated mating contacts and push-pull fastening, suitable for applications requiring reliable vertical card connections. The part is currently active in production with 1052 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability for procurement flexibility or inventory management.

Substiute Parts

66950-020

Amphenol ICC (FCI)In Stock: 112166950-020 Datasheet

Current PartRFQ

1-534237-8

TE Connectivity AMP ConnectorsIn Stock: 843521-534237-8 Datasheet

MFR RecommendedRFQ

BCS-120-L-S-PE-BE

Samtec Inc.In Stock: 787BCS-120-L-S-PE-BE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 66950-020 are qualified based on the following critical parameters that determine functional equivalence:

• Connector Type & Contact Configuration: All substitutes must be receptacle connectors with female socket contacts
• Position Count & Pitch: All substitutes must accommodate 20 positions at 0.100" (2.54mm) mating pitch
• Mounting & Termination: All substitutes must support through-hole solder termination
• Fastening Mechanism: All substitutes must employ push-pull fastening
• Mating Contact Finish: All substitutes must feature gold-plated mating contacts
• Board-to-Board Style: All substitutes must be configured for board-to-board interconnection

The two identified substitutes—TE Connectivity AMP Connectors 1-534237-8 and Samtec Inc. BCS-120-L-S-PE-BE—meet these core electrical and mechanical requirements, enabling direct functional replacement in applications using the 66950-020.

Parameter Comparison

Engineering Selection Recommendations

Amphenol ICC 66950-020: Recommended as the primary component. Active product status with established supply (1052 units in stock). UL94 V-0 flammability rating provides material compliance for regulated applications. RoHS non-compliant status requires verification against end-application requirements.

TE Connectivity AMP Connectors 1-534237-8: Qualified substitute with superior inventory availability (84300 units). Supports extended operating temperature range (-65°C to 125°C) and specified current rating (2A). RoHS non-compliant; REACH Affected status requires compliance verification. Contact finish thickness (30.0µin) exceeds the original specification, providing enhanced durability.

Samtec Inc. BCS-120-L-S-PE-BE: Qualified substitute with pass-through receptacle configuration, enabling daisy-chain applications. ROHS3 Compliant and REACH Unaffected, suitable for regulated environments. Supports higher current rating (4.6A per contact) and voltage rating (475VAC). Operating temperature range (-55°C to 125°C) and UL94 V-0 flammability rating align with industrial requirements. Insulation material (Liquid Crystal Polymer) differs from original polyester composition.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-534237-8 directly replace the Amphenol ICC 66950-020?

A: Yes. Both connectors share identical electrical and mechanical specifications: 20-position receptacle, 0.100" pitch, through-hole solder termination, push-pull fastening, and gold-plated mating contacts. The TE Connectivity part includes additional operating temperature specification (-65°C to 125°C) and current rating (2A), making it functionally equivalent for board-to-board applications.

Q: What is the primary difference between the Samtec BCS-120-L-S-PE-BE and the original 66950-020?

A: The Samtec part features a pass-through receptacle configuration, enabling stacked or daisy-chain connector arrangements. It also provides higher current capacity (4.6A per contact), voltage rating (475VAC), and ROHS3 compliance. The insulation material differs (Liquid Crystal Polymer versus polyester), and the contact finish thickness on the post is not specified.

Q: Are there packaging differences between these substitutes?

A: Yes. The Amphenol ICC 66950-020 is supplied in bag packaging, while both TE Connectivity 1-534237-8 and Samtec BCS-120-L-S-PE-BE are supplied in tube packaging. Tube packaging provides enhanced protection during storage and transport.

Q: Which substitute is recommended for RoHS-compliant applications?

A: The Samtec Inc. BCS-120-L-S-PE-BE is ROHS3 Compliant and REACH Unaffected, making it the appropriate choice for applications requiring regulatory compliance. The Amphenol ICC 66950-020 and TE Connectivity 1-534237-8 are both RoHS non-compliant.

Q: Do all three connectors support the same mating contact finish?

A: Yes. All three connectors feature gold-plated mating contacts. However, contact finish thickness varies: Amphenol ICC (15.0µin), TE Connectivity (30.0µin), and Samtec (10.0µin). These variations do not affect functional compatibility in standard board-to-board applications.

Q: What is the significance of the pass-through receptacle configuration in the Samtec part?

A: The pass-through design allows the connector to be mounted on both sides of a PCB or stacked in series, enabling flexible interconnection topologies. This feature is not present in the Amphenol ICC or TE Connectivity parts, which are standard receptacles.