ST7010QNL

Pulse Transformers Overview

The ST7010QNL is a surface-mount pulse transformer designed for 10Base-T Ethernet applications. It features a 1:1.414CT turns ratio for the transmitter and 1:1CT for the receiver, with primary resistance of 0.9 Ohms. Available inductance values include 18µH, 60µH, 80µH, and 175µH. The component operates within a temperature range of 0°C to 70°C and measures 11.36mm x 9.15mm x 5.91mm. It is RoHS compliant and suitable for single-port LAN connectivity.

Pulse Transformers Feature Summary

• Integrated pulse transformer module for 10Base-T Ethernet signal integrity
• Surface mount package optimized for automated assembly processes
• Specific turns ratios for transmitter and receiver channels

Pulse Transformers Applications

• 10Base-T Ethernet network interface cards
• Single-port LAN connectivity modules
• Ethernet hub and switch physical layer circuits

Pulse Transformers Procurement Notes

Verify RoHS compliance status as some variants may differ. Confirm specific inductance value required (18µH, 60µH, 80µH, or 175µH) against design specifications. Check datasheet for exact pinout and mounting dimensions to ensure PCB layout compatibility. Validate operating temperature range suitability for the intended environment.

Pulse Transformers Selection Notes

Select based on required inductance value for impedance matching in 10Base-T circuits. Ensure surface mount footprint matches PCB design constraints. Consider thermal performance within the 0°C to 70°C operational range. Verify that the 1:1.414CT/1:1CT configuration aligns with the specific PHY transceiver requirements.

Pulse Transformers Part Context

The ST7010QNL belongs to Pulse Electronics' LAN transformer series, specifically engineered for Ethernet physical layer interfaces. It serves as a critical component for signal coupling and isolation in 10 Mbps Ethernet networks. The part is manufactured by Pulse Electronics, a Technitrol company, focusing on high-reliability magnetic components for telecommunications and data networking.

Pulse Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official distributor databases for cross-reference lists if replacement is necessary.