Amphenol ICC 55508-312 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-312 is a 12-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 push-pull fastening. The part is currently obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for new designs or production transitions.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	12
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
Insulation Material	Plastic
Contact Material	Phosphor Bronze
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 55508-312 is determined by strict alignment of the following critical parameters:

Connector Type & Contact Configuration: Receptacle with female socket contacts
Position Count & Pitch: 12 positions at 0.079" (2.00mm) mating pitch
Row Configuration: 2 rows with 0.079" (2.00mm) row spacing
Mounting & Termination: Surface mount with solder termination
Fastening Mechanism: Push-pull fastening system
Contact Finish: Gold-plated mating surface
Operating Temperature Range: -55°C to 125°C
Electrical Ratings: Minimum 2A current capacity and 200V voltage rating
Flammability & Material: UL94 V-0 rated insulation

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 specifications. The 55508-312LF represents the active production equivalent with RoHS compliance and tin-lead post finish.

Category 2: Cross-Manufacturer Alternatives - Samtec CLT series receptacles that satisfy all critical electrical and mechanical parameters while offering enhanced current ratings (4.1A per contact) and alternative insulation materials (Liquid Crystal Polymer). These parts maintain identical pitch, position count, row spacing, and fastening characteristics.

Parameter Comparison

Parameter	55508-312	55508-312LF	CLT-106-02-F-D	CLT-106-02-F-D-A	CLT-106-02-F-D-A-P	CLT-106-02-F-D-A-P-TR	CLT-106-02-F-D-A-TR	CLT-106-02-F-D-BE	CLT-106-02-F-D-BE-A	CLT-106-02-F-D-BE-A-K	CLT-106-02-F-D-BE-A-K-TR
Manufacturer	Amphenol ICC	Amphenol ICC	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec
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	12	12	12	12	12	12	12	12	12	12	12
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
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)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)	3.00µin (0.076µm)
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 ~ 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
Contact Finish - Post	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
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
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
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
Packaging	Not specified	Tube	Tube	Tube	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Tube	Tube	Tube	Tape & Reel (TR)

Engineering Selection Recommendations

For RoHS Compliance Requirements:

The 55508-312LF is the direct active equivalent of the obsolete 55508-312, maintaining identical mechanical and electrical specifications while achieving RoHS compliance. This part is recommended for designs requiring regulatory compliance with minimal redesign effort. Current inventory of 768 units is available.

For Enhanced Current Capacity:

The Samtec CLT series (CLT-106-02-F-D and variants) provides 4.1A per contact capacity compared to the 2A rating of the original part. All CLT variants maintain identical pitch, position count, row spacing, and push-pull fastening. These parts are ROHS3 compliant and feature Liquid Crystal Polymer insulation. Selection among CLT variants depends on packaging requirements and mechanical features:

CLT-106-02-F-D: Standard tube packaging, baseline configuration
CLT-106-02-F-D-A: Adds board guide feature, tube packaging
CLT-106-02-F-D-A-P: Adds board guide and pick-and-place feature, tube packaging
CLT-106-02-F-D-A-P-TR: Adds board guide and pick-and-place feature, tape & reel packaging for automated assembly
CLT-106-02-F-D-A-TR: Board guide feature, tape & reel packaging
CLT-106-02-F-D-BE: Bottom entry configuration, tube packaging
CLT-106-02-F-D-BE-A: Bottom entry with board guide, tube packaging
CLT-106-02-F-D-BE-A-K: Bottom entry with board guide and pick-and-place, tube packaging
CLT-106-02-F-D-BE-A-K-TR: Bottom entry with board guide and pick-and-place, tape & reel packaging

For Automated Assembly:

Tape & reel packaged variants (CLT-106-02-F-D-A-P-TR, CLT-106-02-F-D-A-TR, CLT-106-02-F-D-BE-A-K-TR) are suitable for high-volume surface mount assembly operations. Pick-and-place feature variants (CLT-106-02-F-D-A-P, CLT-106-02-F-D-BE-A-K, CLT-106-02-F-D-BE-A-K-TR) accommodate automated placement equipment.

For Bottom Entry Applications:

Bottom entry receptacle variants (CLT-106-02-F-D-BE series) accommodate board designs requiring connector access from the underside of the PCB.

Frequently Asked Questions (FAQ)

Q: Can the 55508-312LF be used as a direct replacement for the 55508-312?

A: Yes. The 55508-312LF maintains identical electrical and mechanical specifications including 12 positions, 0.079" (2.00mm) pitch, 2A current rating, 200V voltage rating, gold-plated mating contacts, and push-pull fastening. The primary difference is RoHS compliance and tin post finish instead of tin-lead. Both parts are Amphenol ICC Minitek® 2.00mm series receptacles.

Q: Are Samtec CLT-106 series connectors mechanically compatible with the 55508-312?

A: Yes. All CLT-106-02 variants maintain the critical mechanical parameters: 12 positions, 0.079" (2.00mm) mating pitch, 2-row configuration with 0.079" (2.00mm) row spacing, surface mount solder termination, and push-pull fastening. Physical compatibility is ensured through identical pitch and row spacing. The CLT series offers enhanced current capacity at 4.1A per contact.

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

A: Standard CLT-106-02-F-D variants feature top-entry connector orientation. Bottom entry variants (CLT-106-02-F-D-BE series) are designed for applications where the mating connector approaches from the underside of the PCB. Both configurations maintain identical electrical and pitch specifications.

Q: What packaging options are available for high-volume production?

A: Tape & reel (TR) packaging is available for the following CLT variants: CLT-106-02-F-D-A-P-TR, CLT-106-02-F-D-A-TR, and CLT-106-02-F-D-BE-A-K-TR. These are suitable for automated surface mount assembly. Tube packaging is standard for all other variants.

Q: Does the reduced gold plating thickness on CLT series affect electrical performance?

A: No. The CLT series features 3.00µin (0.076µm) gold plating compared to 15.0µin (0.38µm) on the original 55508-312. Both thicknesses meet electrical contact requirements for the specified voltage and current ratings. The thinner plating on CLT parts is within industry standards for 0.079" (2.00mm) pitch connectors.

Q: What is the significance of the board guide feature in CLT variants?

A: The board guide feature (indicated by "-A" in part numbers) provides mechanical alignment assistance during mating, improving connector positioning accuracy on the PCB. This feature is optional and does not affect electrical compatibility.

Q: Are all substitute parts RoHS compliant?

A: The 55508-312LF is RoHS compliant. All Samtec CLT-106-02 variants are ROHS3 compliant. The original 55508-312 is RoHS non-compliant. For applications requiring RoHS compliance, select 55508-312LF or any CLT variant.

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