E2458FNLT

Overview

The E2458FNLT is a surface-mount audio and signal transformer manufactured by Pulse Electronics, designed for 10Base-T LAN applications. It features a single channel with a 1:1.41 turns ratio and operates within a frequency range of 10 MHz to 100 MHz. Key electrical parameters include an inductance of 160 µH, primary coil impedance of 700 Ohms, secondary coil impedance of 200 Ohms, and maximum DC resistance of 300 mOhms. The component provides 1.5 kV isolation voltage and functions between -40°C and +85°C. Its physical dimensions are 0.500 inches in length, 0.358 inches in width, and 0.241 inches in height.

Feature Summary

• Provides galvanic isolation for 10Base-T Ethernet data interfaces
• Supports surface mount technology for automated assembly
• Encapsulated design ensures environmental protection

Applications

• 10Base-T network interface circuits
• Ethernet data transmission systems
• LAN transformer modules

Procurement Notes

Verify the specific suffix 'FNLT' against official Pulse Electronics documentation to confirm the exact variant, as ordering codes may denote specific packaging or revision details. Ensure compatibility with IEC-62368 standards if required for the target equipment. Cross-reference the manufacturer part number directly with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing 10Base-T isolated interfaces requiring a 1:1.41 turns ratio. Confirm that the 160 µH inductance and 700/200 Ohm impedance values align with the circuit requirements. Verify that the surface mount package dimensions fit the PCB layout constraints and that the operating temperature range meets the system's thermal specifications.

Part Context

This component belongs to the Pulse Electronics LAN Transformers category, specifically engineered for audio and signal transformation in networking hardware. It serves as an isolation device for Ethernet signals, distinguishing it from general-purpose power inductors like the PA2050 series. The product line focuses on providing reliable data interface solutions for industrial and commercial electronic equipment.

Replacement Considerations

Consult official substitution lists for verified equivalents. Generic replacements may not match the precise 1:1.41 turns ratio or encapsulation requirements necessary for 10Base-T compliance.