SM42002EL

Pulse Transformers Overview

The Bourns SM42002EL is a Chip LAN transformer module designed for 2.5 GbE applications, featuring IEEE 802.3 Ethernet compatibility and integrated Common Mode Choke (CMC). It operates within a frequency range of 1 MHz to 250 MHz and supports quad channels. The component utilizes SMD/SMT termination and functions between 0°C and +85°C. Physical dimensions are 16 mm in length, 10.3 mm in width, and 4.1 mm in height, with a minimum inductance of 230 µH at 100 kHz.

Pulse Transformers Feature Summary

• Integrated design combining four discrete chip LAN transformers with common mode chokes on a single PCB substrate
• Optimized for 2.5 Gigabit Ethernet signal integrity with built-in electromagnetic interference suppression
• Surface-mount construction suitable for automated assembly processes in compact network hardware

Pulse Transformers Applications

• 2.5 Gigabit Ethernet network interface cards
• Ethernet switch modules requiring integrated magnetics
• Consumer electronics with high-speed wired connectivity

Pulse Transformers Procurement Notes

Verify the specific ordering suffix against the manufacturer datasheet to ensure correct packaging configuration, as standard lead times may vary by distributor channel. Confirm RoHS compliance status through official documentation prior to integration into regulated product lines. Cross-reference the electrical specifications with the target circuit requirements to validate performance under operating conditions.

Pulse Transformers Selection Notes

Select this module when designing for 2.5G Base-T standards requiring integrated common mode filtering without external components. Evaluate the physical footprint constraints against the 16x10.3mm outline. Ensure the thermal environment remains within the specified 0°C to +85°C operational range for reliable long-term performance in embedded networking systems.

Pulse Transformers Part Context

This component belongs to Bourns' series of Chip LAN Transformer Modules, which consolidate multiple magnetic elements into a single surface-mount package. These modules replace traditional discrete transformer assemblies, reducing board space and simplifying layout complexity for modern Ethernet interfaces while maintaining signal integrity standards.

Pulse Transformers Replacement Considerations

Consult the official Bourns replacement guide for direct equivalents. Verify pinout compatibility and electrical parameters before substituting with other LAN transformer modules from different manufacturers or alternative series within the same brand family.