Amphenol ICC 55508-018 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-018 is an 18-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, gold-plated mating contacts, and push-pull fastening. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility (18 positions, 2.00mm pitch, 2A current rating, 200V voltage rating) and mechanical compatibility (surface mount, solder termination, push-pull fastening).

Key Parameters

Parameter	55508-018
Connector Type	Receptacle
Number of Positions	18
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
Current Rating	2A
Voltage Rating	200V
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 55508-018 is based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

18-position receptacle configuration
0.079" (2.00mm) mating pitch
2-row layout with 0.079" (2.00mm) row spacing
Surface mount solder termination
Push-pull fastening mechanism
Gold-plated mating contacts
UL94 V-0 flammability rating
Operating temperature range -55°C ~ 125°C

Amphenol ICC Direct Substitute: The 55508-018LF is the direct successor from the same manufacturer, maintaining identical electrical and mechanical specifications while offering RoHS compliance and active product status.

Samtec CLT Series Substitutes: The Samtec CLT-109-02 series provides functional equivalence with enhanced specifications. All CLT variants maintain the core 18-position, 2.00mm pitch, surface mount configuration. Variants differ in connector entry style (standard vs. bottom entry), board guide features, and packaging format (tube vs. tape & reel). The higher current rating (4.1A per contact vs. 2A) and LCP insulation material provide design margin for applications within the original 2A specification.

Parameter Comparison

Parameter	55508-018	55508-018LF	CLT-109-02-F-D	CLT-109-02-F-D-A	CLT-109-02-F-D-A-P	CLT-109-02-F-D-A-P-TR	CLT-109-02-F-D-BE	CLT-109-02-F-D-BE-A	CLT-109-02-F-D-BE-A-K	CLT-109-02-F-D-BE-A-K-TR	CLT-109-02-F-D-BE-A-P
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry
Number of Positions	18	18	18	18	18	18	18	18	18	18	18
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)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2	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)	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	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	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	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating	2A	2A	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact	4.1A per Contact
RoHS Status	Non-compliant	Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

For Direct Replacement (Amphenol ICC Ecosystem): The 55508-018LF is the recommended direct substitute. It maintains identical electrical and mechanical specifications while offering RoHS compliance and active product status. This part is suitable for applications requiring minimal design changes and continued use of Amphenol ICC connectors.

For Enhanced Performance (Samtec CLT Series): The Samtec CLT-109-02 series provides functional equivalence with higher current capacity (4.1A per contact vs. 2A). All CLT variants are active products with ROHS3 compliance. Selection within the CLT series depends on mechanical requirements:

CLT-109-02-F-D: Standard top-entry configuration, tube packaging
CLT-109-02-F-D-A: Adds board guide feature for improved alignment
CLT-109-02-F-D-A-P: Adds pick-and-place feature for automated assembly
CLT-109-02-F-D-A-P-TR: Tape & reel packaging for high-volume production
CLT-109-02-F-D-BE series: Bottom-entry variants for applications requiring cable entry from the board underside
CLT-109-02-F-D-BE-A-K-TR: Bottom-entry with board guide, pick-and-place, and tape & reel packaging for maximum automation support

All CLT variants maintain the 18-position, 2.00mm pitch, surface mount solder termination, and push-pull fastening required for compatibility with the original 55508-018 mating connector.

Frequently Asked Questions (FAQ)

Q: Can I use the Samtec CLT-109-02 series as a direct replacement for the Amphenol ICC 55508-018?

A: Yes. The CLT-109-02 series maintains the critical electrical and mechanical parameters: 18 positions, 0.079" (2.00mm) pitch, 2-row configuration, surface mount solder termination, and push-pull fastening. The higher current rating (4.1A per contact) provides design margin for applications operating at the original 2A specification. Verify mating connector compatibility with your specific application.

Q: What is the difference between standard entry and bottom-entry CLT variants?

A: Standard entry (CLT-109-02-F-D series) positions the connector for top-side cable or mating connector entry. Bottom-entry variants (CLT-109-02-F-D-BE series) allow cable or mating connector entry from the board underside. Select based on your PCB layout and assembly requirements.

Q: Does the board guide feature affect electrical performance?

A: No. The board guide feature (indicated by "-A" in the part number) improves mechanical alignment during assembly but does not alter electrical specifications. It is recommended for automated pick-and-place assembly.

Q: What packaging options are available for the CLT-109-02 series?

A: Tube packaging is standard for most variants. Tape & reel (TR) packaging is available for high-volume production (CLT-109-02-F-D-A-P-TR and CLT-109-02-F-D-BE-A-K-TR). Select based on your production volume and assembly equipment.

Q: Are all substitute parts RoHS compliant?

A: The 55508-018LF is RoHS compliant. All Samtec CLT-109-02 variants are ROHS3 compliant. The original 55508-018 is RoHS non-compliant. Verify compliance requirements for your application.

Q: What is the insulation height difference between the 55508-018 and CLT-109-02 series?

A: The 55508-018 has an insulation height of 0.091" (2.30mm). The CLT-109-02 series has an insulation height of 0.083" (2.10mm). This 0.008" (0.20mm) difference may affect PCB layout spacing. Verify clearance in your specific application.

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