SI-51014-F Equivalent & Substitute Parts

Part Overview

The SI-51014-F is a 1 Port RJ45 Through Hole modular connector manufactured by Stewart Connector, designed for 10/100/1000 Base-T applications with AutoMDIX support. This connector features a 90° right angle orientation, solder termination, and shielded design with EMI finger protection. The part is currently Active in product status with 990 pieces available in inventory. Alternative components may be required due to supply constraints, design revisions, or specific application requirements.

Substiute Parts

SI-51014-F

Stewart ConnectorIn Stock: 1047SI-51014-F Datasheet

Current PartRFQ

J1026F01NL

Pulse ElectronicsIn Stock: 1987J1026F01NL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The J1026F01NL from Pulse Electronics qualifies as a substitute based on the following matching parameters:

• Connector Type: RJ45
• Number of Ports: 1
• Mounting Type: Through Hole
• Orientation: 90° Angle (Right)
• Termination: Solder
• Height Above Board: 0.550" (13.97mm)
• Shielding: Shielded
• Contact Finish: Gold
• Housing Material: Thermoplastic
• RoHS Compliance: Active compliance status
• MSL Rating: 1 (Unlimited)

The J1026F01NL operates within the 10/100 Base-TX specification range, which is a subset of the SI-51014-F's 10/100/1000 Base-T capability. Both connectors maintain identical physical footprints, board heights, and termination methods, enabling direct PCB layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the SI-51014-F and J1026F01NL maintain Active product status and comply with RoHS regulations. The SI-51014-F supports full Gigabit Ethernet (10/100/1000 Base-T) with AutoMDIX functionality, while the J1026F01NL operates at Fast Ethernet speeds (10/100 Base-TX). Selection between these connectors depends on the network speed requirements of the target application. For applications requiring Gigabit capability, the SI-51014-F is the appropriate choice. For applications limited to Fast Ethernet speeds, the J1026F01NL provides equivalent mechanical and electrical compatibility within its specified bandwidth range. Both connectors meet MSL 1 moisture sensitivity requirements and maintain identical PCB footprints and solder termination methods.

Frequently Asked Questions (FAQ)

Q: Can the J1026F01NL replace the SI-51014-F in a Gigabit Ethernet application?

A: The J1026F01NL is rated for 10/100 Base-TX operation only and does not support 1000 Base-T (Gigabit) speeds. Use the J1026F01NL only in applications where network speeds do not exceed 100 Mbps.

Q: Are the PCB footprints identical between these connectors?

A: Yes. Both connectors share identical mounting specifications: Through Hole termination, 90° right angle orientation, and 0.550" (13.97mm) height above board. Direct PCB layout substitution is possible.

Q: What is the difference in core count between these connectors?

A: The SI-51014-F contains 8 cores per jack, supporting full Gigabit Ethernet signaling. The J1026F01NL contains 5 cores per jack, sufficient for 10/100 Base-TX operation. The reduced core count reflects the lower bandwidth specification.

Q: Do both connectors meet RoHS compliance?

A: Yes. The SI-51014-F is ROHS3 Compliant, and the J1026F01NL is RoHS Compliant. Both connectors meet environmental regulatory requirements.

Q: What is the packaging difference?

A: The SI-51014-F packaging is not specified in the provided data. The J1026F01NL is supplied in Tray packaging. Confirm packaging requirements with your procurement specifications.

Q: Are both connectors suitable for high-temperature applications?

A: The SI-51014-F operating temperature is not specified in the provided data. The J1026F01NL operates within 0°C to 70°C. Verify temperature requirements against your application environment.