Amphenol ICC 55510-012LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55510-012LF is a 12-position receptacle connector in the Minitek® 2.00mm series, designed for surface mount board-to-board applications. This connector features a 0.079" (2.00mm) pitch with gold-plated mating contacts and push-pull fastening. The part is currently active in production with 708 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility and supply chain continuity.

Substiute Parts

55510-012LF

Amphenol ICC (FCI)In Stock: 77755510-012LF Datasheet

Current PartRFQ

A3-12DA-2SV(71)

Hirose Electric Co LtdIn Stock: 1531A3-12DA-2SV(71) Datasheet

MFR RecommendedRFQ

A3A-12DA-2SV(71)

Hirose Electric Co LtdIn Stock: 1135A3A-12DA-2SV(71) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 55510-012LF are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Matching Parameters (Required for Substitution):

• Connector type: Receptacle
• 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
• Termination: Solder
• Contact material: Phosphor Bronze
• Contact shape: Square

Allowable Parameter Variations: Substitute parts may differ in current rating, operating temperature range, insulation material, insulation height, contact finish thickness, and mated stacking heights, provided the application requirements do not exceed the substitute part's electrical ratings and environmental specifications.

The Hirose Electric Co Ltd A3-12DA-2SV(71) and A3A-12DA-2SV(71) connectors meet these substitution criteria. Both are 12-position receptacles with 2.00mm pitch, surface mount configuration, and push-pull fastening. The A3A-12DA-2SV(71) includes a board guide feature.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration - Current Rating: The 55510-012LF is rated for 2A, while both Hirose substitutes (A3-12DA-2SV(71) and A3A-12DA-2SV(71)) are rated for 1A. Substitution is appropriate only for applications requiring 1A or less. Applications exceeding 1A current must retain the original 55510-012LF.

Operating Temperature Range: The 55510-012LF operates from -55°C to 125°C. The Hirose substitutes operate from -55°C to 85°C. Substitution is appropriate for applications within the -55°C to 85°C range. Applications requiring operation above 85°C must retain the original part.

Compliance and Certifications: All three parts are UL94 V-0 rated and moisture sensitivity level 1. The 55510-012LF is RoHS Compliant; the Hirose parts are ROHS3 Compliant. Both compliance levels are acceptable for general industrial and medical applications.

Mechanical Compatibility: All three connectors share identical pitch, row configuration, and push-pull fastening. Insulation height differences (0.177" vs. 0.165") are minor and do not affect board-level compatibility. The A3A-12DA-2SV(71) includes a board guide feature for enhanced alignment.

Selection Logic:

• Use 55510-012LF for applications requiring 2A current or operating temperatures above 85°C.
• Use A3-12DA-2SV(71) or A3A-12DA-2SV(71) for applications requiring 1A or less and operating within -55°C to 85°C.
• Use A3A-12DA-2SV(71) when board guide alignment is beneficial.

Frequently Asked Questions (FAQ)

Q: Can the Hirose A3-12DA-2SV(71) be used as a direct replacement for the Amphenol ICC 55510-012LF?

A: Direct replacement is possible only if the application current requirement does not exceed 1A and the operating temperature range does not exceed -55°C to 85°C. The connectors share identical pitch, row spacing, mounting type, and fastening mechanism. If either electrical or thermal specification is exceeded, the original 55510-012LF must be used.

Q: What is the difference between A3-12DA-2SV(71) and A3A-12DA-2SV(71)?

A: Both are 12-position, 2.00mm pitch receptacles with identical electrical and thermal ratings. The A3A-12DA-2SV(71) includes a board guide feature for improved connector alignment during mating. Selection between the two depends on whether board guide functionality is required for the application.

Q: Why does the Hirose substitute have a lower current rating?

A: The 55510-012LF is rated for 2A while the Hirose substitutes are rated for 1A. This difference reflects the design and contact specifications of each connector series. Applications must be evaluated against the substitute part's 1A rating to determine compatibility.

Q: Are there any compatibility issues with insulation material differences?

A: The 55510-012LF uses plastic insulation while the Hirose substitutes use Polyphenylene Sulfide (PPS). Both materials are UL94 V-0 rated and suitable for general purpose, industrial, and telecommunications applications. PPS offers superior chemical and thermal resistance compared to standard plastic. No compatibility issues exist for standard board-level applications.

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

A: The 55510-012LF has 1.97µin (0.050µm) gold plating on mating contacts, while the Hirose substitutes have 8.00µin (0.203µm). The Hirose parts provide thicker gold plating, which may offer enhanced durability and corrosion resistance in demanding environments. Both thicknesses are suitable for standard applications.

Q: Can these connectors be used interchangeably in existing PCB designs?

A: Mechanical and electrical interchangeability is confirmed for the pitch, row spacing, and mounting type. However, the minor insulation height difference (0.177" vs. 0.165") and the optional board guide on the A3A variant may require PCB layout verification. Consult PCB design documentation to confirm clearance and alignment requirements before substitution.