SI-60185-F 4-Port RJ45 Modular Connector Equivalent & Substitute Parts

Part Overview

The SI-60185-F is a 4-port RJ45 through-hole modular connector manufactured by Stewart Connector, designed for 10/100 Base-T networking applications with AutoMDIX capability. This connector features a 90° right-angle orientation, solder termination, and integrated EMI shielding with board guide support. The product is active and ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when they maintain compatibility across critical electrical and mechanical parameters including connector type, port configuration, mounting method, termination style, and application specifications.

Substiute Parts

SI-60185-F

Stewart ConnectorIn Stock: 927SI-60185-F Datasheet

Current PartRFQ

7499031120A

Würth ElektronikIn Stock: 9657499031120A Datasheet

MFR RecommendedRFQ

J8064D648ANL

Pulse ElectronicsIn Stock: 977J8064D648ANL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SI-60185-F are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Connector Type & Port Configuration: All substitutes must be RJ45 connectors with 4-port configuration in a single row
• Mounting & Orientation: Through-hole mounting with 90° right-angle orientation is required
• Termination Method: Solder termination is mandatory for PCB integration
• Application Compatibility: Support for 10/100 Base-T and AutoMDIX functionality
• Shielding & EMI Protection: Shielded design with EMI finger protection
• Board Integration Features: Board guide support and down-facing tab direction
• Compliance: ROHS3 compliance and MSL 1 rating

The two identified substitutes (7499031120A and J8064D648ANL) meet these core requirements while maintaining compatibility with the original SI-60185-F in standard networking applications.

Parameter Comparison

Engineering Selection Recommendations

7499031120A (Würth Elektronik) is the primary substitute for SI-60185-F. Both connectors are ROHS3 compliant and maintain identical core specifications for 10/100 Base-T networking applications. The Würth part features a marginally lower profile (0.531" vs 0.545") and thinner gold contact finish (30.0µin vs 50.0µin), with operating temperature range of -40°C to 85°C. This substitute is suitable for applications requiring extended temperature performance.

J8064D648ANL (Pulse Electronics) is a secondary substitute with equivalent mechanical and electrical compatibility. This connector operates within a narrower temperature range (0°C to 70°C) and uses phosphor bronze contacts with brass shielding instead of copper alloy. The part is RoHS compliant (not specifically ROHS3) and maintains the same MSL 1 rating. Selection of this substitute should account for the specified operating temperature limits.

Both substitutes maintain compliance certifications (REACH Unaffected, EAR99 ECCN, HTSUS 8536.69.4040) and are available in production quantities.

Frequently Asked Questions (FAQ)

Q: Can 7499031120A replace SI-60185-F in existing designs? A: Yes. Both connectors share identical RJ45 4-port configuration, through-hole solder termination, 90° right-angle orientation, and 10/100 Base-T AutoMDIX application support. Height variation is 0.014" (0.35mm), which is within typical PCB layout tolerances. Contact finish thickness difference does not affect electrical performance in standard networking applications.

Q: What are the temperature operating differences between substitutes? A: SI-60185-F and 7499031120A do not specify operating temperature ranges in provided data. J8064D648ANL operates from 0°C to 70°C. For applications requiring extended temperature performance, 7499031120A with -40°C to 85°C rating is recommended.

Q: Are there packaging differences between these connectors? A: SI-60185-F is supplied without specified packaging. 7499031120A is packaged in tubes; J8064D648ANL is packaged in trays. Packaging selection depends on assembly process requirements and inventory management.

Q: Does contact material affect substitution compatibility? A: SI-60185-F uses copper alloy contacts; 7499031120A uses tin contacts; J8064D648ANL uses phosphor bronze contacts. All three are gold-finished and suitable for 10/100 Base-T applications. Contact material differences do not prevent functional substitution in standard networking environments.

Q: Are all three connectors ROHS3 compliant? A: SI-60185-F and 7499031120A are explicitly ROHS3 compliant. J8064D648ANL is RoHS compliant but not specifically designated as ROHS3. For applications requiring ROHS3 certification, 7499031120A is the preferred substitute.