ESMIT-4180/A

Pulse Transformers Overview

The ESMIT-4180/A is a surface-mount pulse transformer manufactured by Sumida America Components Inc. Designed for data and voice coupling applications, this component features a 1:1 turns ratio and an inductance of 120 uH. It operates with a primary DC resistance of 250 mOhm and a secondary DC resistance of 250 mOhm. The unit provides isolation capability up to 3750 Vrms. Packaged in a 4-pin SMD configuration, it is suitable for integration into compact electronic circuits requiring reliable signal transmission.

Pulse Transformers Feature Summary

• Surface mount construction for automated assembly
• Data and voice coupling functionality
• High voltage isolation rating

Pulse Transformers Applications

• Modem signal coupling
• Data communication interfaces
• Voice transmission circuits

Pulse Transformers Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required packaging formats such as tape and reel. Confirm RoHS compliance status through official documentation before procurement. Check manufacturer lead times as they may vary significantly depending on production schedules. Ensure the component matches the exact pinout and physical dimensions required for the target PCB layout.

Pulse Transformers Selection Notes

Select this component when high isolation voltage is critical for safety or noise immunity in data lines. The low DC resistance supports efficient power transfer in coupled circuits. Surface mount design facilitates space-constrained layouts. Evaluate thermal performance requirements against the SMD package capabilities. Consider the 1:1 ratio suitability for direct signal path applications without impedance transformation needs.

Pulse Transformers Part Context

This part belongs to the CBM series of pulse transformers from Sumida. It serves as a specialized component for isolating and coupling signals in telecommunications equipment. The product line focuses on providing reliable magnetic isolation for digital and analog signals in modern electronic systems.

Pulse Transformers Replacement Considerations

The ESMIT-4180/C is a related variant within the same family, offering similar audio transformer characteristics but potentially different specifications. Verify electrical parameters and physical footprint compatibility before substitution.