SM453229-381N7Y

Pulse Transformers Overview

The Bourns SM453229-381N7Y is a surface-mount LAN transformer designed for 10/100/1000 Base-T applications. It features a 1:1 turns ratio and an inductance of 380µH, with an insertion loss of -1.1dB. The component measures 4.7mm in length, 3.22mm in width, and 2.9mm in depth. It supports IEEE 802.3 standards and provides 1500V isolation voltage. Operating temperatures range from -40°C to 85°C, utilizing SMD/SMT termination.

Pulse Transformers Feature Summary

• Utilizes drum core structure with ferrite plate capping to simulate closed magnetic circuit
• Provides center-tapped design allowing common mode suppression without additional filters
• Fully automated production ensures high consistency and reliability

Pulse Transformers Applications

• 10/100/1000 Base-T Ethernet networks
• Industrial single pair Ethernet applications
• IEEE 802.3 based system interfaces

Pulse Transformers Procurement Notes

Verify the specific suffix 'N7Y' against official Bourns documentation to confirm compliance with RoHS Directive 2015/863 and halogen-free requirements. Ensure the ordering part number matches the exact inductance value of 380µH required for the target 10/100/1000 Base-T application. Confirm that the surface mount package dimensions align with the PCB footprint specifications.

Pulse Transformers Selection Notes

Select this component for designs requiring compact LAN interface solutions with integrated EMI suppression capabilities. The center-tapped architecture reduces the need for external common mode chokes, simplifying the bill of materials. Verify thermal performance within the specified -40°C to 85°C operating range for the intended environment.

Pulse Transformers Part Context

This component belongs to the Bourns SM series of Chip LAN transformers. These devices are engineered as discrete center-tapped elements suitable for various telecommunications and network equipment LAN interfaces. The series emphasizes miniaturization while maintaining signal integrity for high-speed data transmission.

Pulse Transformers Replacement Considerations

SM453229A-381N7Y

Pulse Transformers FAQ

Does the SM453229-381N7Y require an external common mode filter?

No, the center-tapped design allows for common mode suppression without additional filtering components.

What is the maximum isolation voltage rating?

The component supports an isolation voltage of 1500V.