Amphenol ICC 55508-134LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-134LF is a 34-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 push-pull fastening. The part is currently active in production with 969 units in stock.

Equivalent and substitute parts are necessary when the original part becomes unavailable, when design requirements demand alternative mechanical configurations (such as bottom entry variants), or when alternative insulation materials better suit specific application environments.

Key Parameters

Parameter	Specification
Connector Type	Receptacle
Number of Positions	34
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 Type	Female Socket
Contact Finish - Mating	Gold
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 55508-134LF is determined by the following critical parameters:

Connector Type & Position Count: All substitutes must be receptacle connectors with 34 positions to maintain mechanical and electrical compatibility with mating plugs.
Pitch & Row Configuration: The 0.079" (2.00mm) pitch and 2-row spacing must be identical to ensure proper board layout and mating alignment.
Mounting & Termination: Surface mount solder termination is required for PCB assembly compatibility.
Fastening Mechanism: Push-pull fastening must be maintained for consistent connector engagement.
Contact Configuration: Female socket contacts with gold mating finish are mandatory for electrical performance.
Temperature & Compliance: Operating temperature range of -55°C to 125°C and UL94 V-0 flammability rating must be met or exceeded.

Samtec Inc. CLT series connectors meet these core requirements. Variants differ in connector entry style (standard vs. bottom entry), insulation material (plastic vs. liquid crystal polymer), and contact finish specifications (tin vs. gold post finish).

Parameter Comparison

Parameter	55508-134LF (Amphenol ICC)	CLT-117-02-F-D (Samtec)	CLT-117-02-F-D-BE (Samtec)	CLT-117-02-G-D (Samtec)	CLT-117-02-G-D-BE (Samtec)	CLT-117-02-L-D (Samtec)	CLT-117-02-L-D-A (Samtec)	CLT-117-02-L-D-BE (Samtec)
Manufacturer	Amphenol ICC	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Number of Positions	34	34	34	34	34	34	34	34
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)
Number of Rows	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)
Connector Type	Receptacle	Receptacle	Receptacle, Bottom Entry	Receptacle	Receptacle, Bottom Entry	Receptacle	Receptacle	Receptacle, Bottom Entry
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Mounting Type	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
Fastening Type	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
Contact Finish Thickness - Mating	30.0µin (0.76µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Insulation Material	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)
Insulation Height	0.091" (2.30mm)	0.083" (2.10mm)	0.083" (2.10mm)	0.083" (2.10mm)	0.083" (2.10mm)	0.083" (2.10mm)	0.083" (2.10mm)	0.083" (2.10mm)
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
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
Current Rating	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
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Discontinued at DiGi Electronics	Active	Active
Inventory (Pcs)	969	808	995	830	788	1073	855	940

Engineering Selection Recommendations

Primary Substitutes (Active Status, Recommended for New Designs)

CLT-117-02-F-D and CLT-117-02-L-D-A are the preferred substitutes. Both are active products with robust inventory levels. CLT-117-02-L-D-A includes a board guide feature, which provides additional mechanical stability during assembly. These parts meet ROHS3 compliance and maintain the required operating temperature range and flammability rating.

Bottom Entry Variants

CLT-117-02-F-D-BE, CLT-117-02-G-D-BE, and CLT-117-02-L-D-BE are functionally equivalent to their standard-entry counterparts but feature bottom entry connector design. These are suitable for applications where board layout requires bottom-side mating access. All three maintain active product status and full compliance certifications.

Gold Post Finish Variants

CLT-117-02-G-D and CLT-117-02-G-D-BE feature gold plating on both mating and post contacts, compared to tin post finish on other CLT variants. This configuration is applicable when enhanced corrosion resistance on solder joints is required.

Discontinued Part

CLT-117-02-L-D is discontinued at DiGi Electronics and should not be selected for new designs, despite high inventory availability. Use CLT-117-02-L-D-A or CLT-117-02-L-D-BE as alternatives.

Insulation Material Consideration

All Samtec CLT substitutes use Liquid Crystal Polymer (LCP) insulation instead of the plastic insulation in the original 55508-134LF. LCP provides superior dimensional stability and chemical resistance, making it suitable for demanding industrial and medical applications.

Frequently Asked Questions (FAQ)

Q: Can CLT-117 series connectors directly replace the Amphenol ICC 55508-134LF?

A: Yes, CLT-117 series receptacles are mechanically and electrically compatible. All share identical 34-position, 0.079" (2.00mm) pitch configuration, push-pull fastening, and surface mount termination. Mating with existing 55508 plugs is supported.

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

A: Standard entry connectors (CLT-117-02-F-D, CLT-117-02-G-D, CLT-117-02-L-D-A) mate from the top of the PCB. Bottom entry variants (CLT-117-02-F-D-BE, CLT-117-02-G-D-BE, CLT-117-02-L-D-BE) mate from the bottom. Selection depends on board layout and assembly requirements.

Q: Why do CLT-117 parts have higher current ratings than the original 55508-134LF?

A: CLT-117 connectors are rated at 4.1A per contact versus 2A for the 55508-134LF. This reflects improved contact design and material properties in the Samtec series. The higher rating does not affect compatibility; it indicates enhanced electrical capacity.

Q: What is the significance of contact finish thickness differences?

A: The original 55508-134LF specifies 30.0µin (0.76µm) gold mating finish. CLT-117-02-F-D and CLT-117-02-F-D-BE provide 3.00µin (0.076µm), while CLT-117-02-G-D variants provide 10.0µin (0.25µm). All thicknesses meet functional requirements for gold contact performance. Thicker finishes (10.0µin) offer extended service life in high-cycle mating applications.

Q: Are all substitutes RoHS compliant?

A: Yes. The original 55508-134LF is RoHS Compliant. All CLT-117 substitutes are ROHS3 Compliant, which represents the current RoHS directive standard and is fully backward compatible.

Q: Which substitute should be selected for new product designs?

A: CLT-117-02-L-D-A is recommended for new designs. It is active, offers board guide features for improved assembly reliability, maintains full compliance certifications, and provides 4.1A per contact current capacity. For applications requiring bottom entry configuration, CLT-117-02-L-D-BE is the equivalent choice.

Q: What is the packaging format for these connectors?

A: The original 55508-134LF is supplied in tube packaging. Most CLT-117 substitutes are also tube-packaged. CLT-117-02-L-D shows no specified packaging format and is discontinued; avoid this part number for procurement.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message