0854-2X4R-GK-F Equivalent & Substitute Parts

Part Overview

The 0854-2X4R-GK-F is an 8-port RJ45 modular connector manufactured by Bel Fuse Inc. under the MagJack® series. This through-hole connector supports 10/100/1000 Base-T and Power over Ethernet+ (PoE+) applications with a 90° right-angle orientation. The component is Active status and widely used in network interface applications requiring shielded, multi-port connectivity with EMI protection.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and application support can be maintained across different manufacturers while accommodating specific design constraints such as packaging format, operating temperature range, or inventory availability.

Substiute Parts

0854-2X4R-GK-F

Bel Fuse Inc.In Stock: 7490854-2X4R-GK-F Datasheet

Current PartRFQ

J0B-0384NL

Pulse ElectronicsIn Stock: 1317J0B-0384NL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The J0B-0384NL from Pulse Electronics qualifies as a substitute for the 0854-2X4R-GK-F based on the following matched parameters:

• Connector Type: RJ45
• Number of Ports: 8
• Number of Rows: 2
• Mounting Type: Through Hole
• Orientation: 90° Angle (Right)
• Termination: Solder
• Applications: 10/100/1000 Base-T, Power over Ethernet+ (PoE+)
• Shielding: Shielded, EMI Finger
• Number of Cores per Jack: 9
• Contact Finish: Gold
• Contact Finish Thickness: 50.0µin (1.27µm)
• LED Color: Does Not Contain LED
• Features: Board Guide
• Tab Direction: Up and Down

Substitution is valid when these core electrical and mechanical parameters remain constant. Variations in packaging format, internal contact material, housing material, and operating temperature range do not affect functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 0854-2X4R-GK-F and J0B-0384NL maintain Active product status and are compliant with RoHS and REACH regulations. The components are electrically and mechanically equivalent for standard 10/100/1000 Base-T and PoE+ applications.

Selection between these parts should be based on:

• Operating temperature requirements: The 0854-2X4R-GK-F supports -40°C to 85°C, while the J0B-0384NL operates within 0°C to 70°C. Applications requiring extended low-temperature operation require the Bel Fuse part.
• Packaging format: The 0854-2X4R-GK-F is supplied in Bulk packaging; the J0B-0384NL is supplied in Tray packaging. Selection depends on procurement and assembly workflow requirements.
• Inventory availability: Current stock levels are 678 units for the 0854-2X4R-GK-F and 1305 units for the J0B-0384NL.

Frequently Asked Questions (FAQ)

Q: Can the J0B-0384NL replace the 0854-2X4R-GK-F in all applications?

A: The J0B-0384NL is functionally equivalent for standard 10/100/1000 Base-T and PoE+ applications. However, if the application requires operation below 0°C, the 0854-2X4R-GK-F is required due to its extended operating temperature range.

Q: What is the difference in height above board between these connectors?

A: The 0854-2X4R-GK-F has a height of 1.004" (25.50mm), while the J0B-0384NL measures 1.005" (25.53mm). This 0.001" difference is negligible for standard PCB design and does not affect mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. The 0854-2X4R-GK-F is ROHS3 Compliant, and the J0B-0384NL is RoHS Compliant. Both meet regulatory requirements for restricted substance elimination.

Q: Does packaging format affect electrical performance?

A: No. The Bulk packaging of the 0854-2X4R-GK-F and Tray packaging of the J0B-0384NL do not affect electrical or mechanical performance. Packaging selection is based on procurement, handling, and assembly process requirements.

Q: What is the significance of the 9 cores per jack specification?

A: The 9-core configuration supports the standard 8-conductor RJ45 signal lines plus an additional conductor for power delivery in PoE+ applications. Both parts maintain this specification.