Amphenol ICC 75915-321 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 75915-321 is a 21-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board applications. This connector features gold-plated mating contacts, through-hole solder termination, and push-pull fastening. The product is currently obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement.

Substiute Parts

75915-321

Amphenol ICC (FCI)In Stock: 95375915-321 Datasheet

Current PartRFQ

75915-321LF

Amphenol ICC (FCI)In Stock: 89975915-321LF Datasheet

DirectRFQ

2-215299-1

TE Connectivity AMP ConnectorsIn Stock: 11582-215299-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 75915-321 is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Receptacle with female socket contacts
• Position Count & Pitch: 21 positions at 0.100" (2.54mm) mating pitch
• Mounting & Termination: Through-hole solder termination
• Fastening Mechanism: Push-pull fastening
• Contact Finish: Gold-plated mating surface
• Insulation Material & Flammability: UL94 V-0 rated thermoplastic or polyester, glass-filled

Two substitute parts meet these criteria: the 75915-321LF (direct manufacturer upgrade) and the TE Connectivity 2-215299-1 (cross-manufacturer equivalent).

Parameter Comparison

Engineering Selection Recommendations

75915-321LF is the primary substitute for the obsolete 75915-321. Both connectors are from the same manufacturer (Amphenol ICC) and identical Dubox™ series. The 75915-321LF is functionally equivalent with identical electrical and mechanical specifications. The key advantage is active product status and RoHS compliance, making it suitable for new designs and ongoing procurement where regulatory compliance is required.

2-215299-1 (TE Connectivity AMPMODU HV-100) is a cross-manufacturer equivalent. While mechanically and electrically compatible, minor dimensional variations exist: contact post length is 0.122" (3.10mm) versus 0.114" (2.90mm), and post finish thickness is 118.1µin (3.00µm) versus 78.7µin (2.00µm). The insulation material differs (polyester versus thermoplastic, both glass-filled). This connector is suitable for applications where cross-manufacturer sourcing is acceptable and provides additional supply chain flexibility. RoHS compliance is confirmed.

Both substitutes maintain the critical functional parameters: 21-position receptacle configuration, 0.100" (2.54mm) pitch, through-hole solder termination, push-pull fastening, and gold-plated mating contacts with UL94 V-0 flammability rating.

Frequently Asked Questions (FAQ)

Q: Can the 75915-321LF directly replace the obsolete 75915-321 in existing designs?

A: Yes. The 75915-321LF is electrically and mechanically identical to the 75915-321, with identical contact configurations, pitch, termination, and fastening. The primary difference is product status (active versus obsolete) and RoHS compliance. No design modifications are required.

Q: What are the key differences between the 75915-321LF and 2-215299-1?

A: Both are functionally equivalent 21-position, 0.100" pitch receptacle connectors with identical fastening and termination methods. Differences include: manufacturer (Amphenol ICC versus TE Connectivity), series designation (Dubox™ versus AMPMODU HV-100), contact post length (0.114" versus 0.122"), post finish thickness (78.7µin versus 118.1µin), and insulation material (thermoplastic versus polyester, both glass-filled). These variations do not affect electrical performance or mechanical compatibility in standard board-to-board applications.

Q: Are there packaging differences between these substitutes?

A: Yes. The 75915-321 and 75915-321LF differ in packaging: the original is unspecified, while the 75915-321LF is supplied in tube packaging. The 2-215299-1 is supplied in bulk packaging. Packaging does not affect connector functionality or compatibility.

Q: Which substitute should be selected for new designs requiring regulatory compliance?

A: Both 75915-321LF and 2-215299-1 are RoHS compliant and suitable for regulated applications. The 75915-321LF maintains exact specification alignment with the original design. The 2-215299-1 provides cross-manufacturer sourcing options. Selection depends on supply chain strategy and design validation requirements.

Q: Is the contact post length difference between 75915-321LF and 2-215299-1 significant?

A: The 0.008" (0.20mm) difference in contact post length (0.114" versus 0.122") is within typical PCB through-hole tolerance ranges and does not affect mating performance or electrical characteristics in standard applications. However, designs with tight mechanical constraints should account for this variation.