Amphenol ICC 55508-140 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-140 is a 40-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 operates across -55°C to 125°C. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Active alternatives from both Amphenol ICC and cross-manufacturer sources are available with compatible electrical and mechanical specifications.

Key Parameters

Parameter	Specification
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	40
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 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 (40), mating pitch (0.079"/2.00mm), number of rows (2), row spacing (0.079"/2.00mm), mounting type (surface mount), termination method (solder), fastening type (push-pull), contact finish (gold), operating temperature range (-55°C to 125°C), and material flammability rating (UL94 V-0).

Substitute parts are grouped into two categories:

Category 1: Direct Amphenol ICC Substitutes — Parts maintaining the Minitek® 2.00mm series designation with identical mechanical and electrical parameters. The primary difference is product status (active vs. obsolete) and RoHS compliance.

Category 2: Cross-Manufacturer Samtec CLT Series — Parts from Samtec Inc. meeting all core mechanical and electrical requirements. These connectors feature Liquid Crystal Polymer (LCP) insulation material instead of plastic, higher current rating per contact (4.1A vs. 2A), and active product status with ROHS3 compliance. Variations include standard, bottom-entry, board guide, and pick-and-place configurations, with packaging options in tube or tape & reel formats.

Parameter Comparison

Parameter	55508-140	55508-140LF	CLT-120-02-F-D	CLT-120-02-F-D-A	CLT-120-02-F-D-A-P	CLT-120-02-F-D-A-P-TR	CLT-120-02-F-D-A-TR	CLT-120-02-F-D-BE	CLT-120-02-F-D-BE-A	CLT-120-02-F-D-BE-A-K	CLT-120-02-F-D-BE-A-K-TR
Manufacturer	Amphenol ICC	Amphenol ICC	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	40	40	40	40	40	40	40	40	40	40	40
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
Insulation Material	Plastic	Plastic	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Bulk	Tube	Tube	Tube	Tube	Tape & Reel (TR)	Bulk	Tube	Tube	Tube	Tape & Reel (TR)

Engineering Selection Recommendations

For Direct Replacement (Same Series): The Amphenol ICC 55508-140LF is the primary direct substitute, maintaining identical mechanical and electrical specifications while offering active product status and RoHS compliance. This part is recommended for applications requiring minimal design changes and continued support from the original manufacturer.

For Enhanced Performance: Samtec CLT series receptacles (CLT-120-02-F-D and variants) provide superior current handling (4.1A per contact vs. 2A) and ROHS3 compliance. These parts are suitable for applications requiring higher current capacity or stricter environmental compliance. The LCP insulation material offers improved thermal and chemical resistance compared to plastic.

For Automated Assembly: CLT-120-02-F-D-A-P-TR and CLT-120-02-F-D-BE-A-K-TR are packaged in tape & reel format with pick-and-place features, optimized for high-volume surface mount production. These variants reduce assembly handling and improve manufacturing throughput.

For Bottom-Entry Applications: CLT-120-02-F-D-BE series connectors accommodate bottom-entry mating, providing design flexibility for applications with space constraints or specific PCB layout requirements.

Frequently Asked Questions (FAQ)

Q: Can the 55508-140LF be used as a direct drop-in replacement for the 55508-140?

A: Yes. The 55508-140LF maintains identical mechanical and electrical specifications, including connector type, position count, pitch, mounting method, and operating temperature range. The primary differences are product status (active vs. obsolete) and RoHS compliance (compliant vs. non-compliant). No design modifications are required.

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

A: Both maintain identical mechanical compatibility (40 positions, 0.079" pitch, 2-row configuration, push-pull fastening). The Samtec CLT series offers higher current rating per contact (4.1A vs. 2A), uses Liquid Crystal Polymer insulation instead of plastic, and provides ROHS3 compliance. Samtec variants include additional configuration options (bottom-entry, board guide, pick-and-place) and packaging formats (tube, tape & reel).

Q: Are the Samtec CLT-120 connectors electrically compatible with the original 55508-140?

A: Yes. All CLT-120 variants meet the core electrical requirements: 40 positions, 0.079" (2.00mm) pitch, 2-row spacing at 0.079" (2.00mm), gold-plated mating contacts, -55°C to 125°C operating temperature, and UL94 V-0 flammability rating. The higher current rating (4.1A per contact) is a performance enhancement, not a compatibility issue.

Q: What is the difference between standard CLT-120-02-F-D and bottom-entry CLT-120-02-F-D-BE variants?

A: The standard CLT-120-02-F-D features top-entry mating, while the CLT-120-02-F-D-BE variant accommodates bottom-entry mating. Both maintain identical electrical specifications and mechanical pitch. Bottom-entry configuration is selected based on PCB layout and connector orientation requirements.

Q: Which packaging format should be selected for high-volume production?

A: Tape & reel packaging (TR suffix) is recommended for automated assembly. CLT-120-02-F-D-A-P-TR and CLT-120-02-F-D-BE-A-K-TR include pick-and-place features and are optimized for surface mount production lines. Tube packaging is suitable for lower-volume or manual assembly applications.

Q: Does the insulation material change affect thermal or mechanical performance?

A: The Samtec CLT series uses Liquid Crystal Polymer (LCP) insulation instead of plastic. Both materials meet UL94 V-0 flammability requirements and operate across -55°C to 125°C. LCP provides enhanced thermal stability and chemical resistance, making it suitable for demanding industrial and medical applications.

Q: Are all substitute parts RoHS compliant?

A: The original 55508-140 is RoHS non-compliant. The 55508-140LF is RoHS compliant. All Samtec CLT-120 variants are ROHS3 compliant. RoHS compliance status should be verified against specific regulatory requirements for your application.

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