SM91604L-E

Pulse Transformers Overview

The Bourns SM91604L-E is a surface-mount LAN transformer designed for single-port Gigabit Ethernet applications. It supports 1000Base-T standards and features a 24-pin configuration with reinforced insulation construction. The component provides an isolation voltage of 4.68 kVDC and operates within a temperature range of -40°C to +105°C. Key electrical specifications include a minimum inductance of 350 µH at 100 kHz, primary resistance of 900 mOhms, and secondary resistance of 1.3 Ohms. The unit measures 33 mm x 17 mm x 10.5 mm.

Pulse Transformers Feature Summary

• Supports single-port Gigabit Ethernet (1000Base-T) connectivity
• Features reinforced insulation design for enhanced safety
• Includes integrated common mode chokes for noise suppression
• Provides high isolation voltage capability of 4.68 kVDC

Pulse Transformers Applications

• Gigabit Ethernet network interface cards
• Industrial networking equipment requiring wide temperature operation
• Consumer electronics with 1000Base-T connectivity
• Automotive infotainment systems

Pulse Transformers Procurement Notes

Verify the specific suffix 'E' against the manufacturer's current documentation to confirm compliance with RoHS directives and material composition requirements. Ensure that the selected variant matches the required operating temperature range and pin configuration for your specific PCB layout. Cross-reference the datasheet revision date to guarantee alignment with the latest electrical parameters and mechanical dimensions before finalizing procurement orders.

Pulse Transformers Selection Notes

Select this component when designing circuits requiring robust isolation and common mode rejection for Gigabit Ethernet links. The 24-pin SMT package facilitates automated assembly processes. Consider the 350 µH inductance value for signal integrity optimization. Verify that the 4.68 kVDC isolation rating meets the safety standards applicable to your target market and end-product classification.

Pulse Transformers Part Context

This part belongs to Bourns' portfolio of audio and signal transformers, specifically categorized under LAN transformers. It serves as a critical passive component in network interface designs, bridging the physical layer transceiver with the RJ-45 connector. The product line emphasizes reliability in harsh environments, supported by the extended temperature range and shielded construction typical of automotive-grade or industrial-grade Ethernet solutions.

Pulse Transformers Replacement Considerations

Consult official substitution lists for compatible alternatives. No direct substitute part numbers are confirmed in the provided public documentation.