Amphenol ICC 55508-310 Rectangular Connector: Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-310 is a 10-position receptacle connector in the Minitek® 2.00mm series, designed for board-to-board surface mount 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 classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Active alternatives from Amphenol ICC, Molex, and Samtec Inc. provide functional equivalence with updated product status and compliance certifications.

Key Parameters

Parameter	Specification
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	10
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
Material Flammability Rating	UL94 V-0
Current Rating	2A
Voltage Rating	200V
Insulation Material	Plastic
Contact Shape	Square
Contact Material	Phosphor Bronze
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters: connector type (receptacle), contact type (female socket), number of positions (10), mating pitch (0.079" / 2.00mm), number of rows (2), row spacing (0.079" / 2.00mm), mounting type (surface mount), termination (solder), fastening type (push-pull), contact finish (gold), and insulation color (black).

Amphenol ICC 55508-310LF qualifies as a direct substitute, sharing identical electrical and mechanical specifications with the main part while offering active product status and RoHS compliance. Samtec CLT series connectors (CLT-105-02-F-D, CLT-105-02-F-D-A, CLT-105-02-F-D-A-P, CLT-105-02-F-D-A-P-TR, CLT-105-02-F-D-A-TR, CLT-105-02-F-D-BE, CLT-105-02-F-D-BE-A) meet all core dimensional and electrical parameters with enhanced current ratings (4.1A per contact) and extended temperature range support (-55°C ~ 125°C). Molex Milli-Grid series (0872631023, 0873401024) provide functional equivalence in connector geometry and surface mount configuration but operate at reduced current (1A) and voltage (125VAC) ratings with lower maximum operating temperature (105°C).

Parameter Comparison

Parameter	55508-310	55508-310LF	CLT-105-02-F-D	CLT-105-02-F-D-A-P-TR	CLT-105-02-F-D-BE-A	0872631023	0873401024
Manufacturer	Amphenol ICC	Amphenol ICC	Samtec Inc.	Samtec Inc.	Samtec Inc.	Molex	Molex
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle
Number of Positions	10	10	10	10	10	10	10
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)
Number of Rows	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)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness - Mating	15.0µin (0.38µm)	15.0µin (0.38µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	15.0µin (0.38µm)	15.0µin (0.38µm)
Insulation Color	Black	Black	Black	Black	Black	Black	Black
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C
Current Rating	2A	2A	4.1A per Contact	4.1A per Contact	4.1A per Contact	1A	1A
Voltage Rating	200V	200V	—	—	—	125VAC	125VAC
Insulation Material	Plastic	Plastic	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Thermoplastic	—
Contact Shape	Square	Square	Square	Square	Square	Circular	Square
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	—	—
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	—	Tube	Tube	Tape & Reel (TR)	Tube	Tube	Tube

Engineering Selection Recommendations

For direct replacement of the obsolete 55508-310, Amphenol ICC 55508-310LF is the primary choice. It maintains identical electrical and mechanical specifications while offering active product status, RoHS compliance, and equivalent inventory availability.

Samtec CLT series connectors provide enhanced performance characteristics with higher current ratings (4.1A per contact) and extended operating temperature range (-55°C ~ 125°C). These parts are suitable for applications requiring higher current capacity or demanding thermal performance. CLT-105-02-F-D-A-P-TR offers tape and reel packaging for automated assembly environments. CLT-105-02-F-D-BE and CLT-105-02-F-D-BE-A variants feature bottom entry configuration for specific board layout requirements.

Molex Milli-Grid series (0872631023, 0873401024) are functional alternatives for applications with reduced electrical requirements (1A current, 125VAC voltage). These parts operate at lower maximum temperature (105°C) and feature different contact geometry (circular vs. square). Selection of Molex alternatives requires confirmation that application current and voltage demands do not exceed specified ratings.

All substitute parts maintain push-pull fastening, surface mount configuration, and 2.00mm pitch spacing. Compliance certifications (RoHS3, REACH Unaffected, EAR99) are current for all active alternatives.

Frequently Asked Questions (FAQ)

Q: Can 55508-310LF directly replace 55508-310 in existing designs?

A: Yes. The 55508-310LF shares identical connector geometry, pitch spacing (0.079" / 2.00mm), contact configuration (10-position, 2-row), and electrical ratings (2A, 200V). The primary difference is product status (active vs. obsolete) and RoHS compliance. No design modifications are required.

Q: What are the key differences between Amphenol ICC and Samtec CLT alternatives?

A: Samtec CLT series connectors offer higher current capacity (4.1A per contact vs. 2A) and use Liquid Crystal Polymer (LCP) insulation instead of standard plastic. Contact finish thickness on mating surfaces differs (3.00µin vs. 15.0µin). Both maintain -55°C ~ 125°C operating range and 0.079" pitch spacing. CLT variants with "BE" designation provide bottom entry configuration for alternative board mounting approaches.

Q: Are Molex Milli-Grid connectors suitable for all applications?

A: Molex alternatives are suitable only for applications with current requirements not exceeding 1A and voltage not exceeding 125VAC. Maximum operating temperature is limited to 105°C compared to 125°C for Amphenol and Samtec parts. Contact geometry differs (circular vs. square). Confirm application electrical and thermal specifications before selection.

Q: What packaging options are available for automated assembly?

A: Samtec CLT-105-02-F-D-A-P-TR and CLT-105-02-F-D-A-TR are supplied in tape and reel (TR) packaging for pick-and-place assembly. Standard tube packaging is available for all other alternatives. Tape and reel format includes board guide and pick-and-place features.

Q: Do all substitute parts meet current compliance requirements?

A: All active substitute parts are RoHS3 compliant and REACH Unaffected. The original 55508-310 is RoHS non-compliant. Samtec CLT-105-02-F-D-A and CLT-105-02-F-D-BE-A are REACH Affected; all other alternatives are REACH Unaffected. Verify compliance requirements for your specific application and regulatory jurisdiction.

Q: What is the difference between standard and bottom entry (BE) connector variants?

A: Bottom entry variants (CLT-105-02-F-D-BE, CLT-105-02-F-D-BE-A) feature alternative contact entry geometry for specific board layout configurations. Standard variants (CLT-105-02-F-D, CLT-105-02-F-D-A) use conventional top entry. Both maintain identical pitch spacing and electrical ratings. Selection depends on PCB design requirements.

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