Würth Elektronik 7499211003 RJ45 Modular Connector - Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 7499211003 is a single-port RJ45 through-hole modular connector designed for 10/100 Base-T Ethernet applications with AutoMDIX and Power over Ethernet (PoE) support. This connector features a 90° right-angle orientation with solder termination and integrated EMI shielding with board guide. The product is currently obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

7499211003

Würth ElektronikIn Stock: 10797499211003 Datasheet

Current PartRFQ

7499211123A

Würth ElektronikIn Stock: 12747499211123A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7499211003 is based on strict equivalence across the following critical parameters:

• Connector Type & Port Configuration: RJ45, single port
• Mounting & Orientation: Through-hole PCB mount, 90° right-angle orientation
• Electrical Function: 10/100 Base-T Ethernet with AutoMDIX and PoE support
• Mechanical Interface: Solder termination, shielded construction with EMI finger and board guide
• Environmental Compliance: ROHS3 compliance, operating temperature range 0°C ~ 70°C

The substitute part 7499211003A maintains all critical functional and mechanical parameters while offering active product status and enhanced specifications including integrated LED indicators and defined contact materials.

Parameter Comparison

Engineering Selection Recommendations

The 7499211123A is the direct active substitute for the obsolete 7499211003. Both parts maintain identical electrical and mechanical specifications for 10/100 Base-T Ethernet connectivity with PoE support. The substitute part offers the advantage of active product status, ensuring continued availability and manufacturing support.

The 7499211123A includes integrated LED indicators (Yellow-Green) for link and activity status, providing enhanced visual feedback not present in the original part. The height above board increases by 0.009" (0.22mm), which remains within typical PCB layout tolerances for right-angle RJ45 connectors.

Both parts maintain ROHS3 compliance and identical operating temperature specifications, supporting equivalent thermal performance in target applications. The substitute part is supplied in tube packaging and carries full active product designation from Würth Elektronik.

Frequently Asked Questions (FAQ)

Q: Can the 7499211123A be used as a direct replacement for the 7499211003 on existing PCBs?

A: Yes. Both connectors share identical mounting type (through-hole), orientation (90° right-angle), termination method (solder), and functional specifications (10/100 Base-T, AutoMDIX, PoE). The height difference of 0.009" is within standard PCB layout tolerances for this connector category.

Q: What is the significance of the LED indicator in the 7499211123A?

A: The 7499211123A includes integrated Yellow-Green LED indicators for link and activity status. The original 7499211003 does not contain LEDs. This addition provides visual network status feedback without requiring external indicator components.

Q: Are there any compliance differences between the two parts?

A: No. Both parts maintain identical ROHS3 compliance and REACH unaffected status. Operating temperature ranges are identical (0°C ~ 70°C), ensuring equivalent environmental performance.

Q: Why is the original part marked as obsolete?

A: The 7499211003 has been superseded by the 7499211123A within the Würth Elektronik product line. The substitute part offers enhanced functionality while maintaining full backward compatibility with the original electrical and mechanical interface.

Q: What packaging is available for the substitute part?

A: The 7499211123A is supplied in tube packaging, suitable for automated assembly and standard component handling procedures.