66925-554 Equivalent & Substitute Parts

Part Overview

The 66925-554 is a 108-position receptacle connector manufactured by Amphenol ICC (FCI) in the Dubox™ series. This connector features 0.100" (2.54mm) pitch, through-hole right-angle mounting, and gold-plated mating contacts. The product is currently obsolete, making equivalent substitute parts necessary for legacy system maintenance and component sourcing.

Substiute Parts

66925-554

Amphenol ICC (FCI)In Stock: 77666925-554 Datasheet

Current PartRFQ

5-535512-0

TE Connectivity AMP ConnectorsIn Stock: 8685-535512-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 5-535512-0 (TE Connectivity AMP Connectors, AMPMODU Mod II series) qualifies as a direct equivalent based on the following critical parameters:

• Identical connector type (Receptacle) and contact type (Female Socket)
• Matching position count (108 positions)
• Identical mating pitch (0.100" / 2.54mm) and row spacing (0.100" / 2.54mm)
• Identical mounting configuration (Through Hole, Right Angle)
• Identical termination method (Solder) and fastening type (Push-Pull)
• Matching contact finish at mating interface (Gold plating)
• Identical insulation color (Black)

These parameters define the mechanical and electrical compatibility envelope for this connector category. Variations in contact material, contact finish thickness, insulation material composition, and operating temperature specifications do not preclude substitution when the primary functional parameters align.

Parameter Comparison

Engineering Selection Recommendations

The 5-535512-0 (TE Connectivity) serves as the primary substitute for the obsolete 66925-554 (Amphenol ICC). Selection is based on the following factors:

Product Status: The 66925-554 is obsolete, while the 5-535512-0 is active and currently in production. This ensures long-term availability and supply chain continuity.

Compliance: The 5-535512-0 is RoHS compliant, whereas the 66925-554 is RoHS non-compliant. For applications subject to RoHS regulations, the 5-535512-0 is the appropriate choice.

Mechanical Compatibility: Both connectors share identical mating pitch, row spacing, mounting configuration, and contact geometry. Physical interchangeability with mating connectors is assured.

Electrical Compatibility: Both connectors feature identical contact finish at the mating interface (gold plating at 30.0µin thickness) and identical fastening mechanism (push-pull). Electrical performance in the mating interface is equivalent.

Minor Variations: The 5-535512-0 specifies an operating temperature range (-55°C ~ 125°C) and current rating (2A) not provided for the 66925-554. The 5-535512-0 also features phosphor bronze contacts versus brass, and polyester insulation versus polyamide. These variations do not affect substitution suitability for standard applications.

Frequently Asked Questions (FAQ)

Q: Can the 5-535512-0 directly replace the 66925-554 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.100"), row spacing (0.100"), number of positions (108), mounting type (through-hole right-angle), and contact finish at the mating interface (gold). Physical and electrical interchangeability is confirmed.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The 66925-554 is no longer manufactured. The 5-535512-0 is in active production, ensuring availability for new orders, replacements, and future supply requirements.

Q: Does the RoHS compliance difference affect substitution?

A: The 5-535512-0 is RoHS compliant while the 66925-554 is not. For applications or markets requiring RoHS compliance, the 5-535512-0 is the mandated choice. For legacy systems with no RoHS requirement, both parts are functionally equivalent.

Q: Are there differences in contact material between these parts?

A: Yes. The 66925-554 uses brass contacts; the 5-535512-0 uses phosphor bronze. Both materials are standard for this connector category and do not affect mating interface performance when contact finish (gold plating) is identical.

Q: What is the packaging difference?

A: The 66925-554 packaging is not specified. The 5-535512-0 is supplied in tube packaging. Confirm packaging requirements with your procurement process.

Q: Are the insulation materials interchangeable?

A: The 66925-554 uses polyamide (nylon, glass-filled) insulation; the 5-535512-0 uses polyester (glass-filled) insulation. Both materials meet UL94 V-0 flammability requirements and are suitable for standard through-hole PCB applications.

Q: What operating temperature range should be assumed for the 66925-554?

A: The 66925-554 does not specify an operating temperature range. The 5-535512-0 specifies -55°C ~ 125°C. For applications requiring temperature specification, use the 5-535512-0 rating or contact the original equipment manufacturer for 66925-554 specifications.