LTA1VS16A-351-R

Overview

The LTA1VS16A-351-R is a single automotive LAN transformer designed for 10/100 Base-TX applications. It features a 1CT:1CT winding configuration and a 16-pin surface mount package. The component exhibits an inductance of 350 µH at 8 mA DC bias, measured at 100 kHz with 0.2 V amplitude. It provides 1500 Vac insulation between primary and secondary windings. The device operates within a temperature range of -40 °C to +125 °C and complies with IEEE 802.3u standards.

Feature Summary

• Compliant with IEEE 802.3u standards for automotive networking
• High isolation rating of 1500 Vac between primary and secondary sides
• Optimized for 10/100 Base-TX signal transmission
• Automotive-grade reliability suitable for harsh environments

Applications

• Battery management systems in electric vehicles
• Infotainment system network interfaces
• Automotive Ethernet controller unit connections
• In-vehicle local area network (LAN) hubs

Procurement Notes

Verify the specific suffix 'A' against the design requirement, as Eaton offers variants like 'B' and 'C' with different test parameters. Confirm that the 16-pin surface mount footprint matches the PCB layout. Ensure the supplier provides documentation confirming AEC-Q200 qualification status if required by the quality management system. Check for RoHS compliance certificates consistent with current manufacturing batches.

Selection Notes

Select this component when a 10/100 Base-TX solution is required for battery or infotainment subsystems. The 1CT:1CT configuration suits standard differential line driving. Consider the 1500 Vac isolation if galvanic separation is critical. The wide operating temperature range supports under-hood or chassis-mounted installations where thermal stability is essential for long-term network integrity.

Part Context

This part belongs to the LTA1V series of automotive LAN transformers from Eaton Electronics Division. The series is engineered specifically for vehicle networks, offering robust performance compared to general-purpose industrial components. Variants within the series differ primarily in test conditions and mechanical specifications while maintaining core functional compatibility for automotive Ethernet applications.

Replacement Considerations

Direct substitutes include LTA1VS16B-351-R and LTA1VS16C-351-R. Verify pinout compatibility and inductance tolerance differences before swapping. The 'A' variant specifies testing at 0.2 V, whereas other variants may use 0.1 V. Ensure the replacement maintains the same 16-pin surface mount package dimensions.