Amphenol ICC 55508-328 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-328 is a 28-position receptacle connector from 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 currently obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	28
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Operating Temperature	-55°C ~ 125°C
Current Rating	2A
Voltage Rating	200V
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: connector type (receptacle), number of positions (28), mating pitch (0.079"/2.00mm), row configuration (2 rows with 0.079" spacing), mounting method (surface mount), fastening mechanism (push-pull), contact finish (gold), operating temperature range (-55°C to 125°C), and flammability rating (UL94 V-0).

The 55508-328 has one direct manufacturer equivalent from Amphenol ICC (55508-328LF) that differs only in post contact finish (tin versus tin-lead) and product status (active versus obsolete). This part maintains identical mating interface specifications.

Cross-manufacturer substitutes from Samtec Inc. (CLT series) meet all core electrical and mechanical parameters but introduce variations in insulation material (liquid crystal polymer versus plastic), contact current rating (4.1A per contact versus 2A), insulation height (0.083" versus 0.091"), and contact finish thickness (3.00µin versus 15.0µin). These variants are available in multiple packaging and feature configurations (standard, board guide, pick-and-place, bottom entry, tape & reel).

Parameter Comparison

Parameter	55508-328	55508-328LF	CLT-114-02-F-D	CLT-114-02-F-D-A	CLT-114-02-F-D-A-P	CLT-114-02-F-D-A-P-TR	CLT-114-02-F-D-A-TR	CLT-114-02-F-D-BE	CLT-114-02-F-D-BE-A	CLT-114-02-F-D-BE-A-K	CLT-114-02-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.
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry	Receptacle, Bottom Entry
Number of Positions	28	28	28	28	28	28	28	28	28	28	28
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
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	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Bulk	Tube	Tube	Tube	Bulk	Tape & Reel	Tape & Reel	Tube	Tube	Tube	Tape & Reel

Engineering Selection Recommendations

For direct replacement of the obsolete 55508-328, the Amphenol ICC 55508-328LF is the primary choice. This part maintains identical mating interface geometry and electrical specifications while offering active product status and RoHS compliance. The only difference is post contact finish (tin versus tin-lead), which does not affect mating performance.

For new designs or applications requiring enhanced current capacity, the Samtec CLT-114 series provides cross-manufacturer compatibility with all core mechanical and electrical parameters. The CLT series offers higher current rating (4.1A per contact), improved RoHS3 compliance, and multiple packaging options. Standard CLT-114-02-F-D variants are suitable for general board-to-board applications. Bottom entry variants (CLT-114-02-F-D-BE series) accommodate space-constrained layouts. Board guide options (suffix -A) provide mechanical alignment enhancement. Pick-and-place features (suffix -P or -K) support automated assembly. Tape & reel packaging (suffix -TR) is specified for high-volume production.

Selection between Amphenol and Samtec alternatives depends on supply chain requirements, compliance mandates, and application-specific current demands. Both manufacturers provide equivalent mating interface compatibility.

Frequently Asked Questions (FAQ)

Q: Can CLT-114 series connectors mate with 55508-328 plugs? A: Yes. All substitute parts maintain identical 0.079" (2.00mm) pitch spacing, 2-row configuration, and push-pull fastening. Mating interface compatibility is preserved across all listed alternatives.

Q: What is the difference between 55508-328 and 55508-328LF? A: Both parts are electrically and mechanically identical. The primary difference is post contact finish (tin-lead in 55508-328 versus tin in 55508-328LF) and product status (obsolete versus active). The 55508-328LF is RoHS compliant and recommended for new designs.

Q: Are CLT-114 bottom entry variants (BE) compatible with standard 55508-328 applications? A: Bottom entry variants differ in connector orientation and mounting approach. Compatibility depends on PCB layout and mating plug design. Standard CLT-114-02-F-D variants provide direct form-factor equivalence to 55508-328.

Q: What packaging options are available for high-volume production? A: Tape & reel packaging (suffix -TR) is specified for automated pick-and-place assembly. Samtec CLT-114-02-F-D-A-P-TR and CLT-114-02-F-D-BE-A-K-TR are available in tape & reel format. Amphenol 55508-328LF is available in tube packaging.

Q: Does the higher current rating of CLT-114 (4.1A) affect compatibility? A: No. Higher current rating indicates enhanced capability and does not compromise compatibility with applications designed for 2A operation. The CLT-114 series is backward compatible with 55508-328 current specifications.

Q: What is the significance of board guide features (suffix -A)? A: Board guide features provide mechanical alignment assistance during mating. This is an optional enhancement that does not affect electrical compatibility. Selection depends on assembly process requirements.

Q: Are all listed substitutes RoHS compliant? A: The 55508-328 is RoHS non-compliant. The 55508-328LF is RoHS compliant. All Samtec CLT-114 variants are ROHS3 compliant. Compliance requirements should be confirmed for specific applications.

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