Amphenol ICC 75915-420 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 75915-420 is a 20-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board applications using through-hole solder termination. This connector features tin-lead contact finish and is part of the Dubox™ series. The part is currently obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement.

Substiute Parts

75915-420

Amphenol ICC (FCI)In Stock: 71675915-420 Datasheet

Current PartRFQ

75915-420LF

Amphenol ICC (FCI)In Stock: 100375915-420LF Datasheet

DirectRFQ

929974-01-20

3MIn Stock: 1000929974-01-20 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 75915-420 is determined by the following critical parameters that must remain consistent:

• Connector Type & Contact Configuration: Receptacle with female socket contacts
• Position Count & Pitch: 20 positions at 0.100" (2.54mm) mating pitch
• Mounting & Termination: Through-hole solder termination with push-pull fastening
• Electrical & Mechanical Compatibility: Board-to-board style with matching insulation height and contact geometry

The substitute parts listed maintain these core parameters while varying in secondary characteristics such as contact finish composition, insulation material, and product status.

Parameter Comparison

Engineering Selection Recommendations

75915-420LF (Direct Amphenol ICC Substitute)

The 75915-420LF is the primary substitute for the obsolete 75915-420. Both connectors are manufactured by Amphenol ICC within the Dubox™ series and share identical mechanical and electrical specifications. The 75915-420LF differs only in contact finish composition (tin versus tin-lead) and holds active product status. The 75915-420LF is RoHS compliant, addressing regulatory requirements that may apply to new designs or system updates. This part maintains full dimensional and functional compatibility with the original 75915-420.

929974-01-20 (3M Manufacturer-Recommended Alternative)

The 3M 929974-01-20 is a manufacturer-recommended alternative from a different supplier. This connector maintains the same 20-position, 0.100" pitch configuration and through-hole solder termination. Key differences include forked contact geometry (versus female socket), different insulation material (PCT versus thermoplastic), and specified electrical ratings (2A current, 1500V voltage). The 929974-01-20 provides documented operating temperature range (-40°C ~ 105°C) and higher contact finish thickness. This part is suitable where cross-manufacturer compatibility is acceptable and where the specified electrical ratings align with application requirements.

Frequently Asked Questions (FAQ)

Q: Can the 75915-420LF be used as a direct replacement for the 75915-420?

A: Yes. Both connectors are Amphenol ICC Dubox™ series receptacles with identical 20-position, 0.100" pitch configuration, through-hole solder termination, and push-pull fastening. Mechanical and electrical compatibility is maintained. The primary difference is contact finish composition and RoHS compliance status.

Q: What is the significance of the contact finish difference between 75915-420 (tin-lead) and 75915-420LF (tin)?

A: The contact finish composition affects solderability and environmental resistance. Tin-lead finishes are traditional; tin finishes are RoHS compliant. Both finishes are suitable for solder termination. Selection depends on regulatory requirements and existing manufacturing processes.

Q: Is the 3M 929974-01-20 mechanically compatible with the 75915-420?

A: The 929974-01-20 maintains the same 20-position, 0.100" pitch, and through-hole solder termination. However, it uses forked contacts instead of female sockets and has slightly different insulation height (0.325" versus 0.335") and contact post length (0.125" versus 0.114"). These differences may affect mating with existing plug connectors. Verification of mechanical fit is required before implementation.

Q: What does RoHS compliance mean for connector selection?

A: RoHS compliance indicates the connector meets Restriction of Hazardous Substances regulations, restricting lead and other hazardous materials. The 75915-420LF is RoHS compliant; the original 75915-420 is not. For new designs or systems subject to RoHS requirements, the 75915-420LF is the appropriate choice.

Q: Are electrical ratings specified for the 75915-420 and 75915-420LF?

A: Current and voltage ratings are not specified in the available data for these parts. The 3M 929974-01-20 provides specified ratings (2A, 1500V). For applications requiring documented electrical specifications, the 929974-01-20 may be preferable, subject to mechanical compatibility verification.

Q: What is the difference between "Number of Positions" and "Number of Positions Loaded"?

A: All three connectors list 20 positions with all positions loaded, meaning all 20 contact positions are populated and functional. No empty or reserved positions exist in these configurations.