Amphenol ICC 55508-322 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-322 is a 22-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 both Amphenol ICC and Samtec Inc. provide direct functional replacement with enhanced compliance and availability.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	22
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
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
Current Rating	2A
Voltage Rating	200V
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 55508-322 is determined by strict equivalence across the following critical parameters: connector type (receptacle), contact type (female socket), number of positions (22), mating pitch (0.079" / 2.00mm), row configuration (2 rows with 0.079" spacing), mounting type (surface mount), termination method (solder), fastening type (push-pull), operating temperature range (-55°C to 125°C), and flammability rating (UL94 V-0).

Substitute parts are grouped into two categories:

Direct Amphenol ICC Equivalent: The 55508-322LF maintains identical mechanical and electrical specifications while offering RoHS compliance and active product status.

Samtec Inc. CLT Series Alternatives: The CLT-111-02 series provides functional equivalence with enhanced current rating (4.1A per contact versus 2A), improved insulation material (Liquid Crystal Polymer versus plastic), and ROHS3 compliance. Variants within this series differ by connector entry style (standard versus bottom entry), packaging format (tube versus tape & reel), and assembly features (board guide, pick and place capability).

Parameter Comparison

Parameter	55508-322	55508-322LF	CLT-111-02-F-D	CLT-111-02-F-D-A	CLT-111-02-F-D-A-P-TR	CLT-111-02-F-D-BE	CLT-111-02-F-D-BE-A-P
Manufacturer	Amphenol ICC	Amphenol ICC	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Series	Minitek® 2.00mm	Minitek® 2.00mm	CLT	CLT	CLT	CLT	CLT
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Number of Positions	22	22	22	22	22	22	22
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
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 ~ 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
Current Rating	2A	2A	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)
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Connector Entry Style	Standard	Standard	Standard	Standard	Standard	Bottom Entry	Bottom Entry
Features	None	None	None	Board Guide	Board Guide, Pick and Place	None	Board Guide, Pick and Place

Engineering Selection Recommendations

For Direct Replacement (Amphenol ICC 55508-322LF): Select this part when maintaining existing Amphenol ICC supply chains and requiring minimal design changes. The 55508-322LF provides identical mechanical and electrical performance while achieving RoHS compliance and maintaining active product status. This option is suitable for applications where the 2A current rating is sufficient and plastic insulation material meets thermal and mechanical requirements.

For Enhanced Performance (Samtec CLT-111-02 Series): Select Samtec alternatives when higher current capacity (4.1A per contact) or improved insulation material (Liquid Crystal Polymer) is beneficial. All CLT variants maintain full mechanical compatibility and operating temperature range. Choose specific variants based on packaging requirements and assembly process needs:

CLT-111-02-F-D: Standard configuration, tube packaging, baseline option.

CLT-111-02-F-D-A: Adds board guide feature for improved mechanical stability.

CLT-111-02-F-D-A-P-TR: Includes board guide and pick-and-place features in tape & reel format for automated assembly.

CLT-111-02-F-D-BE and CLT-111-02-F-D-BE-A-P: Bottom entry variants for applications requiring mating from the board underside.

All substitute parts maintain REACH compliance and EAR99 export classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can the 55508-322LF be used as a direct drop-in replacement for the 55508-322?

A: Yes. The 55508-322LF maintains identical connector geometry, pin count, pitch spacing, and electrical ratings. The primary differences are RoHS compliance and active product status. No design modifications are required.

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

A: Amphenol ICC 55508-322LF preserves the original Minitek series and plastic insulation. Samtec CLT-111-02 series offers higher current capacity (4.1A per contact versus 2A), Liquid Crystal Polymer insulation for improved thermal performance, and ROHS3 compliance. Mechanical compatibility is maintained across all options.

Q: Are Samtec CLT-111-02 variants mechanically compatible with the original 55508-322 mating connector?

A: Yes. All CLT-111-02 variants maintain 0.079" (2.00mm) pitch spacing, 22-position configuration, 2-row layout, and push-pull fastening. Mating with corresponding plug connectors is fully compatible.

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

A: Standard entry (CLT-111-02-F-D series) accepts mating connectors from the top of the board. Bottom entry variants (CLT-111-02-F-D-BE series) are designed for mating from the board underside, enabling different PCB layout configurations.

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

A: CLT-111-02-F-D-A-P-TR in tape & reel format with pick-and-place features is optimized for automated surface mount assembly. Tube packaging (standard for most variants) is suitable for manual or semi-automated processes.

Q: Does the higher current rating of Samtec parts affect compatibility?

A: No. Higher current capacity is a performance enhancement that does not affect mechanical or electrical compatibility. Existing designs rated for 2A operation remain fully functional with 4.1A-rated parts.

Q: Are all substitute parts suitable for medical and industrial applications?

A: Yes. All listed substitutes maintain UL94 V-0 flammability rating, -55°C to 125°C operating temperature range, and MSL 1 moisture sensitivity level, meeting requirements for general purpose, industrial, and medical applications.

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