ST7011QNL

Pulse Transformers Overview

The ST7011QNL is a surface mount LAN transformer from Pulse Electronics designed for 10Base-T applications. It features a non-PoE configuration with an inductance of 175µH and a DC resistance of 0.9 Ohms. The component supports a maximum DC current of 150 mA and has a power rating of 2 W. It utilizes a 1CT:1.414CT turns ratio for the transmitter and 1CT:1CT for the receiver, ensuring compatibility with standard Ethernet physical layer interfaces.

Pulse Transformers Feature Summary

• Designed specifically for 10Base-T network interface controller integration
• Non-Power over Ethernet (NonPoE) architecture for isolated signal transmission
• Surface mount package optimized for automated PCB assembly processes

Pulse Transformers Applications

• 10 Mbps Ethernet network interface cards
• Industrial control system communication modules
• Embedded networking hardware requiring 10Base-T compliance

Pulse Transformers Procurement Notes

Verify the specific suffix 'QNL' against official manufacturer documentation to confirm the exact packaging format and reel specifications. Ensure the component meets RoHS3 compliance requirements for your target market. Cross-reference the 175µH inductance value with your circuit design constraints before finalizing procurement orders.

Pulse Transformers Selection Notes

Select this component when designing for legacy 10Base-T Ethernet standards rather than higher-speed variants. Confirm that the 150 mA maximum DC current rating aligns with the power budget of the connected PHY chip. Validate that the surface mount footprint dimensions fit within the available board space constraints.

Pulse Transformers Part Context

This part belongs to the Pulse Electronics LAN transformer family, which provides isolation and impedance matching for Ethernet signals. The ST7011 series typically includes variants for different speeds such as 10/100/1000 Base-T. The QNL suffix indicates a specific tape-and-reel packaging option suitable for high-volume manufacturing environments.

Pulse Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative components by comparing pin configurations, electrical parameters, and mechanical dimensions.