ISNF-0249-D101

Pulse Transformers Overview

The ISNF-0249-D101 is a surface mount pulse transformer manufactured by SCHURTER Inc. It features a 1:1:1 turns ratio and an inductance of 1.4mH, designed for SCR and Triac trigger applications. The component operates within a temperature range of -25°C to +100°C and provides 3500 V insulation voltage. Physical dimensions are 18.2 mm in length and 13.5 mm in height. It carries VDE certification and complies with RoHS standards.

Pulse Transformers Feature Summary

• Provides galvanic separation between drive and power circuits
• Ensures high insulation rating between primary and secondary windings
• Maintains small coupling capacitances for signal integrity
• Guarantees defined partial discharge voltage for service life

Pulse Transformers Applications

• Ignition circuits with Thyristors and Triacs
• Drive circuits for power transistors and IGBTs
• DC/DC converters
• Galvanic isolation interfaces

Pulse Transformers Procurement Notes

Verify the specific part number against official SCHURTER documentation to confirm current availability status. Check for any recent product change notices or end-of-life announcements that may affect supply continuity. Ensure compliance with required environmental certifications such as RoHS and VDE before finalizing procurement decisions.

Pulse Transformers Selection Notes

Select this component when surface mount technology is required for pulse transformation in thyristor or triac triggering systems. Consider the 1.4mH inductance and 1:1:1 ratio for appropriate signal coupling. Verify that the 3500 V insulation rating meets the system's isolation requirements and that the operating temperature range aligns with the application environment.

Pulse Transformers Part Context

This component belongs to the IS series of pulse transformers from SCHURTER Inc., specialized for encapsulated applications requiring reliable galvanic isolation. It serves as a critical interface element in power electronics, ensuring safe and efficient signal transmission between control logic and high-power switching devices without direct electrical connection.

Pulse Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential cross-references or updated model designations if this specific variant is discontinued.