749023310

Pulse Transformers Overview

The Würth Elektronik 749023310 is a WE-LAN AQ series surface mount pulse transformer designed for 10/100/1000 Base-T Power over Ethernet applications. It features a single port with a 1:1 turns ratio and an inductance of 180 µH. The component provides 1.5 kVrms isolation voltage and operates within a temperature range of 0°C to +70°C. Packaged in tape and reel or cut tape formats, it supports high-density PCB assembly for Gigabit Ethernet connectivity.

Pulse Transformers Feature Summary

• Supports 10/100/1000 Base-T data rates with integrated Power over Ethernet functionality
• Provides galvanic isolation via 1.5 kVrms dielectric strength
• Surface mount construction facilitates automated high-volume manufacturing

Pulse Transformers Applications

• Gigabit Ethernet network interface cards
• PoE-enabled switches and routers
• Industrial communication modules requiring isolated power delivery

Pulse Transformers Procurement Notes

Verify the specific package variant (Tape & Reel vs. Cut Tape) required for your assembly line equipment before ordering. Confirm that the 180 µH inductance specification aligns with your circuit design requirements. Ensure compatibility with standard SMT reflow profiles for components rated up to 70°C operating temperature.

Pulse Transformers Selection Notes

Select this component when designing systems requiring simultaneous data transmission and power delivery over a single Ethernet cable. The 1:1 ratio suits direct coupling applications. Consider the 1.5 kVrms isolation if electrical safety separation between network lines and internal circuitry is mandatory for regulatory compliance.

Pulse Transformers Part Context

This part belongs to the WE-LAN AQ family, specialized for high-speed LAN applications. Unlike general signal transformers, these are optimized for differential signaling integrity in Gigabit networks. The AQ designation indicates specific performance characteristics tailored for PoE standards, distinguishing it from non-PoE variants in the broader WE-LAN portfolio.

Pulse Transformers Replacement Considerations

Cross-reference with other Würth Elektronik WE-LAN AQ models offering identical 180 µH inductance and 1.5 kVrms isolation. Verify pinout compatibility and footprint dimensions against existing PCB layouts before substituting with alternative manufacturers' equivalents.