Amphenol ICC 55508-320 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-320 is a 20-position receptacle connector with 0.079" (2.00mm) pitch, designed for board-to-board surface mount applications. This connector features gold-plated mating contacts, push-pull fastening, and operates across -55°C to 125°C. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support. Active alternatives from both Amphenol ICC and Samtec Inc. provide functional equivalence with improved compliance status and availability.

Key Parameters

Parameter	Specification
Connector Type	Receptacle
Number of Positions	20
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 to 125°C
Current Rating	2A (55508-320); 4.1A per Contact (CLT series)
Voltage Rating	200V (55508-320)
Material Flammability	UL94 V-0
Insulation Material	Plastic (55508-320); Liquid Crystal Polymer (CLT series)
Contact Material	Phosphor Bronze
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Connector type: Receptacle
Number of positions: 20
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
Style: Board to Board
Termination: Solder
Operating temperature range: -55°C to 125°C
Material flammability: UL94 V-0
Contact material: Phosphor Bronze
Moisture sensitivity level: 1 (Unlimited)

Allowed Variation Parameters:

Contact finish - mating: Gold (all substitutes maintain gold plating)
Contact finish thickness - mating: Varies (15.0µin to 30.0µin acceptable)
Insulation color: Black (consistent across all parts)
Insulation height: 0.091" (2.30mm) to 0.083" (2.10mm)
Insulation material: Plastic or Liquid Crystal Polymer
Contact finish - post: Tin or Gold
Packaging: Tube, Tape & Reel, or Bulk
Product status: Active substitutes preferred over obsolete
RoHS compliance: Variation allowed (non-compliant to ROHS3 compliant)
Features: Board Guide and/or Pick and Place features permitted

Connector Style Variants:

Standard top-entry receptacles (CLT-110-02-F-D series)
Bottom-entry receptacles (CLT-110-02-G-D-BE series, CLT-110-02-H-D-BE series)

All listed substitutes maintain electrical and mechanical compatibility with the original 55508-320 within these defined parameters.

Parameter Comparison

Parameter	55508-320	55508-320LF	CLT-110-02-F-D-A-P	CLT-110-02-F-D-A-P-TR	CLT-110-02-F-D-A-TR	CLT-110-02-F-D-K-TR	CLT-110-02-F-D-P-TR	CLT-110-02-G-D-BE-A-K	CLT-110-02-G-D-BE-K	CLT-110-02-G-D-K-TR	CLT-110-02-H-D-BE-A-K
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	Receptacle, Bottom Entry
Number of Positions	20	20	20	20	20	20	20	20	20	20	20
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
Contact Finish Thickness - Mating	15.0µin (0.38µm)	15.0µin (0.38µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	30.0µin (0.76µm)
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black
Insulation Height	0.091" (2.30mm)	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)	0.083" (2.10mm)	0.083" (2.10mm)
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Material Flammability	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
Insulation Material	Plastic	Plastic	Liquid Crystal Polymer	Liquid Crystal Polymer	Liquid Crystal Polymer	Liquid Crystal Polymer	Liquid Crystal Polymer	Liquid Crystal Polymer	Liquid Crystal Polymer	Liquid Crystal Polymer	Liquid Crystal Polymer
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
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
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
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	Tape & Reel	Tape & Reel	Tape & Reel	Tape & Reel	Tube	Tube	Tape & Reel	Bulk

Engineering Selection Recommendations

Direct Amphenol ICC Replacement: The 55508-320LF is the direct successor to the 55508-320 within the Amphenol ICC product line. It maintains identical electrical and mechanical specifications while upgrading to RoHS Compliant status and active product availability. The primary difference is the contact finish post material (Tin vs. Tin-Lead), which aligns with modern manufacturing standards. This part is recommended for designs requiring continuity with the original Amphenol ICC Minitek 2.00mm series.

Samtec CLT Series Substitutes: The Samtec CLT-110 series provides full functional equivalence with enhanced specifications. All CLT variants deliver higher current ratings (4.1A per Contact vs. 2A) and ROHS3 Compliant status. The CLT series uses Liquid Crystal Polymer insulation, offering superior thermal and mechanical properties compared to standard plastic. Multiple packaging and feature options accommodate different manufacturing workflows:

CLT-110-02-F-D variants: Standard top-entry receptacles with Tin post finish, available in Tube (CLT-110-02-F-D-A-P) or Tape & Reel packaging (CLT-110-02-F-D-A-P-TR, CLT-110-02-F-D-A-TR, CLT-110-02-F-D-K-TR, CLT-110-02-F-D-P-TR). Board Guide and Pick and Place features available based on variant selection.
CLT-110-02-G-D-BE variants: Bottom-entry receptacles with Gold post finish, designed for applications requiring cable entry from the board underside. Available in Tube (CLT-110-02-G-D-BE-A-K, CLT-110-02-G-D-BE-K) or Tape & Reel (CLT-110-02-G-D-K-TR) packaging.
CLT-110-02-H-D-BE-A-K: Bottom-entry variant with enhanced gold plating thickness (30.0µin mating contact finish), supplied in Bulk packaging.

All CLT substitutes maintain the -55°C to 125°C operating range, UL94 V-0 flammability rating, and 2.00mm pitch geometry required for direct mechanical and electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can CLT-110 series connectors directly replace the 55508-320 in existing designs? A: Yes. The CLT-110 series maintains identical pitch (0.079" / 2.00mm), position count (20), row configuration (2 rows), mounting type (Surface Mount), and fastening mechanism (Push-Pull). Mechanical and electrical compatibility is confirmed. The insulation height difference (0.083" vs. 0.091") is within acceptable tolerance for board-to-board applications.

Q: What is the difference between top-entry (CLT-110-02-F-D) and bottom-entry (CLT-110-02-G-D-BE) receptacles? A: Top-entry receptacles (F-D variants) accept mating connectors from above the board surface. Bottom-entry receptacles (G-D-BE and H-D-BE variants) are designed for cable or connector entry from the board underside, enabling compact board layouts where space above the board is constrained. Both styles maintain identical electrical performance and pitch specifications.

Q: Why do CLT-110 parts have higher current ratings (4.1A per Contact) than the original 55508-320 (2A)? A: The CLT-110 series uses optimized contact geometry and Liquid Crystal Polymer insulation, enabling higher current capacity. This represents an improvement over the original specification and does not affect compatibility. Designs rated for 2A operation remain fully compatible.

Q: What is the significance of contact finish thickness variations (3.00µin to 30.0µin)? A: Contact finish thickness affects durability and wear resistance. Thicker gold plating (CLT-110-02-H-D-BE-A-K at 30.0µin) provides extended service life in high-cycle mating applications. Standard thickness (3.00µin to 15.0µin) is suitable for general-purpose applications. All variants maintain electrical conductivity and corrosion resistance within their specified operating ranges.

Q: Is the 55508-320LF preferred over Samtec CLT alternatives? A: Selection depends on application requirements. The 55508-320LF maintains Amphenol ICC Minitek series continuity and is suitable for designs requiring manufacturer consistency. Samtec CLT alternatives offer enhanced specifications (higher current rating, ROHS3 compliance, Liquid Crystal Polymer insulation) and broader packaging options. Both are functionally equivalent and interchangeable at the board level.

Q: What packaging options are available, and how do they affect procurement? A: Tube packaging (standard quantity per tube) suits lower-volume production and manual assembly. Tape & Reel (TR) packaging enables automated pick-and-place assembly and is standard for high-volume manufacturing. Bulk packaging offers cost efficiency for very high-volume orders. Selection should align with assembly process capabilities and production volume requirements.

Q: Are all listed substitutes RoHS compliant? A: The 55508-320 is RoHS non-compliant. The 55508-320LF is RoHS Compliant. All Samtec CLT-110 variants are ROHS3 Compliant. For applications subject to RoHS regulations, CLT-110 series or 55508-320LF are required.

Q: Can bottom-entry CLT-110-02-G-D-BE and CLT-110-02-H-D-BE variants be used in place of top-entry CLT-110-02-F-D variants? A: No. Bottom-entry and top-entry receptacles have different mechanical orientations and mating interfaces. Selection must match the corresponding plug connector orientation. Verify mating connector type before substitution.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message