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Amphenol ICC 50003-1056E High Density Backplane Connector - Equivalent & Substitute Parts
Part Overview
The Amphenol ICC 50003-1056E is a 56-position high-density backplane connector featuring female sockets in a through-hole, right-angle configuration. This connector is part of the HPC™ series and is designed for PCB-mounted applications requiring high-density interconnection in a 4-row by 14-column layout with 0.100" (2.54mm) pitch spacing.
The 50003-1056E carries an obsolete product status, which necessitates identification of functionally equivalent alternatives for new designs, repairs, and ongoing system support. The primary substitute maintains identical electrical and mechanical specifications while offering active product status and improved compliance characteristics.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Number of Positions | 56 |
| Connector Type | Receptacle, Female Sockets |
| Connector Style | High Density (HDC, HDI, HPC) |
| Pitch | 0.100" (2.54mm) |
| Configuration | 4 Rows × 14 Columns |
| Mounting Type | Through Hole, Right Angle |
| Termination | Solder |
| Contact Finish | Gold, 30.0µin (0.76µm) |
| Features | Mating Guide |
| Series | HPC™ |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 50003-1056E is determined by strict equivalence across the following critical parameters:
- Position Count & Configuration: 56 positions in 4×14 arrangement
- Connector Type & Gender: Receptacle with female sockets
- Pitch & Spacing: 0.100" (2.54mm) standard spacing
- Mounting & Orientation: Through-hole, right-angle PCB mounting
- Termination Method: Solder termination for PCB integration
- Contact System: Gold-plated contacts with specified thickness
- Series Compatibility: HPC™ series designation
The substitute part 50003-1056ELF maintains complete electrical and mechanical compatibility with the original 50003-1056E while offering enhanced product lifecycle status and regulatory compliance.
Parameter Comparison
| Parameter | 50003-1056E (Original) | 50003-1056ELF (Substitute) |
|---|---|---|
| Manufacturer | Amphenol ICC (FCI) | Amphenol ICC (FCI) |
| Category | Backplane Connectors | Backplane Connectors |
| Number of Positions | 56 | 56 |
| Connector Type | Receptacle, Female Sockets | Receptacle, Female Sockets |
| Connector Style | High Density (HDC, HDI, HPC) | High Density (HDC, HDI, HPC) |
| Pitch | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Rows × Columns | 4 × 14 | 4 × 14 |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle |
| Termination | Solder | Solder |
| Contact Finish | Gold, 30.0µin (0.76µm) | Gold, 30.0µin (0.76µm) |
| Features | Mating Guide | Mating Guide |
| Series | HPC™ | HPC™ |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | RoHS Compliant |
| Inventory Availability | 953 Pcs | 763 Pcs |
Engineering Selection Recommendations
The 50003-1056ELF is the direct functional equivalent of the 50003-1056E for all new designs and system implementations. Both connectors share identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and interchangeability in PCB layouts.
The primary distinction between these parts lies in product lifecycle status and regulatory compliance. The 50003-1056ELF maintains active product status with Amphenol ICC, ensuring continued manufacturing support, technical documentation availability, and supply chain reliability. The 50003-1056ELF also achieves RoHS compliance, meeting current environmental and regulatory requirements for commercial and industrial applications.
For legacy system maintenance where the original 50003-1056E is required, existing inventory remains available. However, for new designs, redesigns, or long-term production planning, the 50003-1056ELF is the recommended selection based on product lifecycle and compliance considerations.
Frequently Asked Questions (FAQ)
Q: Are the 50003-1056E and 50003-1056ELF mechanically interchangeable?
A: Yes. Both connectors feature identical 56-position, 4×14 configuration with 0.100" pitch, through-hole right-angle mounting, and solder termination. PCB footprints and mating interfaces are identical.
Q: What is the significance of the "LF" suffix in the 50003-1056ELF part number?
A: The "LF" designation indicates lead-free and RoHS-compliant manufacturing. This reflects the part's compliance with environmental regulations and the absence of restricted substances in the contact and termination materials.
Q: Can the 50003-1056E be used in applications requiring RoHS compliance?
A: No. The 50003-1056E is RoHS non-compliant. Applications subject to RoHS requirements must use the 50003-1056ELF.
Q: Are there any electrical performance differences between these connectors?
A: No. Both parts maintain identical contact finish specifications (gold, 30.0µin thickness), contact layout, and electrical characteristics. Performance in signal integrity and current-carrying capacity is equivalent.
Q: What is the moisture sensitivity level for both connectors?
A: Both the 50003-1056E and 50003-1056ELF carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or assembly.
Q: Is the mating connector the same for both parts?
A: Yes. Both receptacle connectors mate with identical plug connectors from the HPC™ series. Mating guide features are present on both versions.
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