Amphenol ICC 55510-024 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55510-024 is a 24-position receptacle connector in the Minitek® 2.00mm series, designed for surface mount board-to-board applications. This connector features 0.079" (2.00mm) pitch spacing, gold-plated mating contacts, and operates across -55°C to 125°C. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Active alternatives from Amphenol ICC, Molex, Hirose Electric, and Samtec provide direct functional equivalence with enhanced compliance profiles.

Key Parameters

Parameter	Specification
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	24
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Operating Temperature	-55°C ~ 125°C
Insulation Material	Plastic
Contact Material	Phosphor Bronze
Current Rating	2A
Voltage Rating	200V

Substitute Part Grouping Explanation

Substitution eligibility for the 55510-024 is determined by strict alignment with the following core parameters: 24-position configuration, 0.079" (2.00mm) pitch, dual-row layout with 0.079" row spacing, surface mount termination, push-pull fastening, gold mating contact finish, and phosphor bronze contact material. All listed substitutes maintain these electrical and mechanical specifications.

Substitutes are grouped into two categories:

Direct Amphenol ICC Variants: The 55510-024LF represents the active production equivalent with identical mechanical and electrical characteristics, differing only in contact post finish (tin versus tin-lead) and RoHS compliance status.

Cross-Manufacturer Alternatives: Molex 0791091211, Hirose A3-24DA-2SV(71) and A3A-24DA-2SV(71), and Samtec MMS and TLE series connectors provide functional equivalence across all critical parameters while offering enhanced compliance certifications and alternative packaging options.

Parameter Comparison

Parameter	55510-024	55510-024LF	0791091211	A3-24DA-2SV(71)	A3A-24DA-2SV(71)	MMS-112-02-F-DV-A-K-TR	TLE-112-01-G-DV	TLE-112-01-G-DV-A-K
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle, Pass Through	Receptacle, Pass Through
Number of Positions	24	24	24	24	24	24	24	24
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2	2	2	2	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Current Rating	2A	2A	1A	1A	1A	3.9A per Contact	3.2A per Contact	3.2A per Contact
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	Compliant	ROHS3 Compliant	ROHS3 Compliant	Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute - Amphenol ICC 55510-024LF: This is the direct active production replacement for the obsolete 55510-024. It maintains identical mechanical and electrical specifications with the exception of contact post finish (tin instead of tin-lead) and achieves RoHS compliance. This part is recommended for applications requiring minimal design changes and continued use of Amphenol ICC connectors.

Alternative for Enhanced Current Capacity - Samtec TLE-112-01-G-DV or TLE-112-01-G-DV-A-K: These pass-through receptacle connectors provide 3.2A per contact versus 2A on the original part, with full temperature range coverage (-55°C to 125°C) and ROHS3 compliance. The TLE-112-01-G-DV-A-K variant includes board guide features. These are suitable for applications requiring higher current handling or pass-through connectivity.

Alternative for Maximum Current Capacity - Samtec MMS-112-02-F-DV-A-K-TR: This connector delivers 3.9A per contact with identical pitch and row spacing, full temperature range, and ROHS3 compliance. It includes board guide and pick-and-place features, making it optimal for high-current applications and automated assembly.

Cross-Manufacturer Options - Molex 0791091211, Hirose A3-24DA-2SV(71), A3A-24DA-2SV(71): These provide functional equivalence with established compliance certifications. Note that Molex and Hirose variants operate at reduced current ratings (1A) and the Hirose parts have a narrower temperature range (-55°C to 85°C). These are suitable for applications where cross-manufacturer qualification is acceptable and current/temperature requirements are within their specifications.

Frequently Asked Questions (FAQ)

Q: Can the 55510-024LF be used as a direct drop-in replacement for the obsolete 55510-024?

A: Yes. The 55510-024LF maintains identical mechanical and electrical specifications including 24-position configuration, 0.079" pitch, dual-row layout, surface mount termination, and push-pull fastening. The only differences are contact post finish (tin versus tin-lead) and RoHS compliance status. No design modifications are required.

Q: What is the difference between standard receptacle and pass-through receptacle connectors in the Samtec TLE series?

A: Pass-through receptacles (TLE-112-01-G-DV and TLE-112-01-G-DV-A-K) allow signal routing through the connector body, enabling daisy-chain or intermediate connection configurations. Standard receptacles terminate connections at the mating interface. Both maintain identical pitch, position count, and electrical ratings.

Q: Why do Hirose A3-24DA-2SV(71) and A3A-24DA-2SV(71) have a lower operating temperature range?

A: The Hirose A3 series is rated -55°C to 85°C, compared to the original 55510-024 specification of -55°C to 125°C. Applications requiring full -55°C to 125°C operation should use the 55510-024LF, Samtec TLE, or Samtec MMS alternatives.

Q: What is the significance of the board guide feature in some substitute parts?

A: Board guide features (present in A3A-24DA-2SV(71), MMS-112-02-F-DV-A-K-TR, and TLE-112-01-G-DV-A-K) provide mechanical alignment assistance during assembly, reducing insertion errors and improving placement accuracy. This feature is optional and does not affect electrical compatibility.

Q: Are all listed substitutes RoHS compliant?

A: The 55510-024 is RoHS non-compliant. The 55510-024LF is RoHS compliant. Samtec TLE and MMS series are ROHS3 compliant. Molex 0791091211 is ROHS3 compliant. Hirose A3-24DA-2SV(71) is ROHS3 compliant, while A3A-24DA-2SV(71) is RoHS compliant. Verify compliance requirements for your application.

Q: What packaging options are available for these substitutes?

A: The 55510-024LF is supplied in tube packaging. Samtec MMS-112-02-F-DV-A-K-TR and TLE series are available in tape & reel (TR) for automated assembly. Molex 0791091211 and Hirose variants are supplied in tube. Select packaging based on assembly process requirements.

Q: Can I use a higher current-rated connector as a substitute if my application only requires 2A?

A: Yes. Higher current-rated connectors (Samtec MMS at 3.9A per contact or TLE at 3.2A per contact) are backward compatible with 2A applications. The connector will operate safely at lower current levels. This approach provides design margin for future upgrades.

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