ETH1-460LD

Overview

The ETH1-460LD is a Power over Ethernet (PoE) pulse transformer module manufactured by Coilcraft. It supports 4-pair cabling for PoE+ and PoE++ applications, compliant with IEEE 802.3at-2009 and IEEE 802.3.bt Type 4 standards. The component features a surface mount package with dimensions of 18.6 mm length, 16.5 mm width, and 10.16 mm height. Key electrical parameters include an inductance of 350µH and an isolation voltage of 1.5kV. It operates within a temperature range of -40°C to 85°C.

Feature Summary

• Integrated signal path combining isolation transformers and common mode chokes for transmit and receive sections.
• Supports high-power injection via center-tapped 1:1 transformers for 4-pair cabling plants.
• Designed to meet IEEE 802.3at-2009 and IEEE 802.3.bt Type 4 standards for PoE+ and PoE++.

Applications

• Security and surveillance cameras
• Video IP phones
• Public Wi-Fi hotspots
• Smart home appliances

Procurement Notes

Verify the specific suffix 'LD' against the manufacturer's official datasheet to confirm exact pinout and packaging configuration. Ensure the selected variant matches the required 4-pair cabling plant specifications for 60W or 120W power levels. Cross-reference the operating temperature range and isolation voltage requirements with the system design constraints before finalizing procurement.

Selection Notes

Select this component for designs requiring compliance with IEEE 802.3bt Type 4 standards. It is suitable for powered devices needing up to 71W input power. Consider the surface mount footprint and thermal performance when integrating into compact enclosures. Verify compatibility with the specific Ethernet PHY interface and cabling infrastructure used in the target application.

Part Context

This part belongs to the ETH1 series of PoE magnetic modules from Coilcraft. The series provides solutions for evolving PoE standards, offering regulated output voltage and isolation. These modules integrate signal path components to filter EMI and inject current, simplifying the design process for next-generation powered devices requiring higher power delivery over single cables.

Replacement Considerations

Consult official Coilcraft documentation for direct substitutes. Alternative parts must match the 4-pair configuration, 350µH inductance, and 1.5kV isolation voltage. Verify that any replacement supports the same IEEE 802.3at and 802.3bt Type 4 standards and fits the existing surface mount footprint.