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Amphenol ICC 55508-124 Equivalent & Substitute Parts
Part Overview
The Amphenol ICC 55508-124 is a 24-position receptacle connector in the Minitek® 2.00mm series, designed for surface mount board-to-board 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 functionally equivalent alternatives that maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Connector Type | Receptacle |
| Contact Type | Female Socket |
| Number of Positions | 24 |
| 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 |
| Contact Finish - Mating | Gold |
| Operating Temperature | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 |
| Current Rating | 2A |
| Voltage Rating | 200V |
| Insulation Material | Plastic |
| Contact Shape | Square |
| Contact Material | Phosphor Bronze |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict alignment with the following core parameters: 24-position configuration, 0.079" (2.00mm) mating pitch, 2-row layout with 0.079" row spacing, surface mount termination, push-pull fastening, gold mating contact finish, and -55°C to 125°C operating temperature range. All substitute parts listed maintain these electrical and mechanical specifications.
The Amphenol ICC 55508-124LF represents a direct manufacturer upgrade path, differing only in RoHS compliance status and contact finish post material (tin versus tin-lead). The Samtec CLT series (CLT-112-02-F-D and variants) provides functionally equivalent receptacles with identical pitch, position count, and temperature rating, though with variations in insulation material (liquid crystal polymer versus plastic), contact finish thickness, and packaging options. The Molex Milli-Grid 0872632423 offers geometric and electrical compatibility but with reduced current rating (1A versus 2A) and lower voltage rating (125VAC versus 200V), requiring application-level assessment.
Parameter Comparison
| Parameter | 55508-124 | 55508-124LF | 0872632423 | CLT-112-02-F-D | CLT-112-02-F-D-A | CLT-112-02-F-D-BE |
|---|---|---|---|---|---|---|
| Manufacturer | Amphenol ICC | Amphenol ICC | Molex | Samtec | Samtec | Samtec |
| Number of Positions | 24 | 24 | 24 | 24 | 24 | 24 |
| Pitch - Mating | 0.079" | 0.079" | 0.079" | 0.079" | 0.079" | 0.079" |
| Number of Rows | 2 | 2 | 2 | 2 | 2 | 2 |
| Row Spacing - Mating | 0.079" | 0.079" | 0.079" | 0.079" | 0.079" | 0.079" |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder |
| Fastening Type | Push-Pull | Push-Pull | Push-Pull | Push-Pull | Push-Pull | Push-Pull |
| Contact Finish - Mating | Gold | Gold | Gold | Gold | Gold | Gold |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 105°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 |
| Current Rating | 2A | 2A | 1A | 4.1A per Contact | 4.1A per Contact | 4.1A per Contact |
| Voltage Rating | 200V | 200V | 125VAC | — | — | — |
| Insulation Material | Plastic | Plastic | Thermoplastic | Liquid Crystal Polymer | Liquid Crystal Polymer | Liquid Crystal Polymer |
| Contact Shape | Square | Square | Circular | Square | Square | Square |
| Contact Material | Phosphor Bronze | Phosphor Bronze | — | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze |
| Product Status | Obsolete | Active | Active | Active | Active | Active |
| RoHS Status | Non-compliant | Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation: Amphenol ICC 55508-124LF
The 55508-124LF is the direct successor to the obsolete 55508-124, maintaining identical electrical and mechanical specifications while achieving RoHS compliance. This part is active in production with 1075 units in stock. The only material difference is the contact finish post (tin versus tin-lead), which does not affect mating interface performance. This represents the lowest-risk substitution path for existing designs.
Secondary Recommendation: Samtec CLT-112-02-F-D-A-K-TR
The Samtec CLT series provides full electrical and mechanical compatibility with the highest inventory availability (8976 units). The CLT-112-02-F-D-A-K-TR variant includes board guide features and tape & reel packaging optimized for automated assembly. All CLT variants maintain the -55°C to 125°C operating range and achieve ROHS3 compliance. The liquid crystal polymer insulation material provides enhanced thermal and mechanical stability compared to standard plastic. Current rating of 4.1A per contact exceeds the original 2A specification, providing design margin.
Conditional Recommendation: Molex 0872632423
The Molex Milli-Grid 0872632423 maintains geometric and pitch compatibility but operates at reduced electrical ratings (1A current, 125VAC voltage versus 2A and 200V). This part is suitable only for applications where the lower electrical specifications are acceptable. The operating temperature maximum of 105°C is also reduced from the original 125°C specification.
Frequently Asked Questions (FAQ)
Q: Can the Amphenol ICC 55508-124LF be used as a direct replacement for the 55508-124?
A: Yes. The 55508-124LF maintains identical connector geometry, pitch, position count, mating contact finish, and operating temperature range. The difference in contact finish post material (tin versus tin-lead) does not affect mating interface compatibility or electrical performance.
Q: What is the primary advantage of Samtec CLT series connectors over the Amphenol ICC alternatives?
A: The Samtec CLT series offers higher current rating per contact (4.1A versus 2A), liquid crystal polymer insulation for enhanced thermal stability, and multiple packaging options including tape & reel for automated assembly. All variants maintain full compatibility with the original 0.079" pitch and 24-position configuration.
Q: Is the Molex 0872632423 suitable for all applications using the 55508-124?
A: No. The Molex part has reduced electrical ratings (1A current, 125VAC voltage) and lower maximum operating temperature (105°C). Use this part only when application requirements fall within these reduced specifications. Additionally, the circular contact shape differs from the square contacts of the original part.
Q: What packaging options are available for the Samtec CLT-112-02-F-D-A variants?
A: Samtec offers tube packaging (CLT-112-02-F-D-A) and tape & reel packaging (CLT-112-02-F-D-A-K-TR, CLT-112-02-F-D-A-P-TR). Tape & reel packaging is optimized for pick-and-place assembly processes.
Q: Are all substitute parts RoHS compliant?
A: The Amphenol ICC 55508-124LF, all Samtec CLT variants, and the Molex 0872632423 are all RoHS compliant (RoHS3 for Samtec and Molex). The original 55508-124 is RoHS non-compliant.
Q: What is the difference between CLT-112-02-F-D-BE and CLT-112-02-F-D?
A: The CLT-112-02-F-D-BE is a bottom-entry variant, while the CLT-112-02-F-D is a standard top-entry receptacle. Both maintain identical electrical specifications and pitch. Bottom-entry configuration may be required for specific PCB layout constraints.
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