ARJM11B1-576-KB-EW4 Equivalent & Substitute Parts

Part Overview

The ARJM11B1-576-KB-EW4 is a 1 Port RJ45 Through Hole connector rated for 10/100/1000 Base-T with AutoMDIX functionality, manufactured by Abracon LLC. This connector features a 90° right-angle orientation, solder termination, and integrated LED indicators (Green, Orange-Yellow). The product is currently obsolete, necessitating identification of active equivalent models that maintain functional and electrical compatibility for PCB integration in network applications.

Substiute Parts

ARJM11B1-576-KB-EW4

Abracon LLCIn Stock: 694ARJM11B1-576-KB-EW4 Datasheet

Current PartRFQ

0826-1XX1-46-F

Bel Fuse Inc.In Stock: 9260826-1XX1-46-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ARJM11B1-576-KB-EW4 is determined by strict alignment of the following critical parameters:

• Connector Type & Port Configuration: RJ45, single port, 8-core jack
• Electrical Application: 10/100/1000 Base-T with AutoMDIX support
• Physical Form Factor: Through-hole mounting, 90° right-angle orientation, solder termination
• Signal Integrity: Shielded construction with gold-plated contacts
• Regulatory Compliance: ROHS3 compliance and EAR99 classification

The substitute part 0826-1XX1-46-F (Bel Fuse Inc., MagJack® series) meets all critical substitution criteria. Both connectors share identical connector type, port count, application rating, mounting method, orientation, termination style, core count, shielding, LED indicators, contact finish, and regulatory status. Minor variations in height above board (0.535" vs 0.536"), contact finish thickness, and operating temperature range do not preclude functional equivalence in standard PCB applications.

Parameter Comparison

Engineering Selection Recommendations

The 0826-1XX1-46-F from Bel Fuse Inc. is the qualified substitute for the obsolete ARJM11B1-576-KB-EW4. Selection is supported by:

• Product Status: The substitute is active and in production, ensuring long-term availability and supply chain continuity.
• Regulatory Alignment: Both parts maintain ROHS3 compliance and EAR99 classification, satisfying procurement and export requirements.
• Functional Equivalence: Identical electrical specifications for 10/100/1000 Base-T applications with AutoMDIX support ensure drop-in compatibility at the circuit level.
• Physical Compatibility: Matching through-hole mounting, 90° orientation, and solder termination enable direct PCB layout reuse with negligible height variance (0.01" difference).

For applications requiring the extended operating temperature range of the original part (-40°C to 85°C), thermal performance must be evaluated against the substitute's 0°C to 70°C specification.

Frequently Asked Questions (FAQ)

Q: Can the 0826-1XX1-46-F directly replace the ARJM11B1-576-KB-EW4 on existing PCBs?

A: Yes. Both connectors share identical through-hole footprints, 90° right-angle orientation, and solder termination. The height difference of 0.01" (0.02mm) is negligible for standard PCB designs and does not affect mechanical clearance or electrical performance.

Q: Are there differences in electrical performance between these two connectors?

A: No. Both connectors meet 10/100/1000 Base-T specifications with AutoMDIX support, feature 8-core shielded construction, and use gold-plated contacts. Electrical performance is equivalent for network applications.

Q: What is the significance of the operating temperature range difference?

A: The ARJM11B1-576-KB-EW4 operates from -40°C to 85°C, while the 0826-1XX1-46-F operates from 0°C to 70°C. For applications within the 0°C to 70°C range, both parts are suitable. Applications requiring extended low-temperature operation below 0°C or high-temperature operation above 70°C must use the original specification or identify alternative solutions.

Q: Are both connectors RoHS3 compliant?

A: Yes. Both the ARJM11B1-576-KB-EW4 and 0826-1XX1-46-F are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What are the LED indicator specifications?

A: Both connectors feature dual LED indicators: Green and Orange-Yellow. These provide link status and activity indication for 10/100/1000 Base-T connections.

Q: Is the MagJack® branding significant for compatibility?

A: MagJack® is the Bel Fuse product line designation. It does not affect electrical or mechanical compatibility. The connector functions identically to other RJ45 through-hole designs meeting the same specifications.