Schaffner Through-Hole Pulse Transformer IT253 1:1:1 Ratio, 1.1 mH, 0.55Ω, 1A, 6 Pins

The Schaffner IT253 is a high-quality through-hole pulse transformer engineered for precise signal coupling and galvanic isolation in electronic circuits, especially gate drive and pulse transmission systems. With a well-defined 1:1:1 turns ratio, this transformer ensures consistent and reliable voltage and current transfer between its winding sets, supporting accurate pulse and signal transformation requirements commonly encountered in industrial automation, power electronics, and gate drive circuits.

Built with a primary inductance of 1.1 mH and exceptionally low primary DC resistance of 0.55Ω, the IT253 delivers both efficient energy transfer and minimal signal loss. This balance contributes to high signal fidelity and thermal stability during continuous operation. The device supports continuous current loading up to 1A, making it suitable for a range of control, switching, or interface applications where quick and clean pulses are required for reliable circuit operation.

This transformer features a robust through-hole design with six pins, allowing for steadfast mechanical connection and ease of PCB mounting. Its compact dimensions of 16.7 mm length, 17.6 mm width, and 11.3 mm depth enable integration into space-constrained environments without compromising electrical performance. Operating across a wide temperature span from -25°C to 70°C, the IT253 is well-suited to challenging industrial and embedded settings.

High-voltage isolation is a core feature, with the unit offering 4kV galvanic separation. This level of insulation is crucial for circuitry where the safe boundary between control and power sections must be maintained, ensuring both equipment and operator safety. The transformer is optimized for working frequencies up to 40 kHz, enabling its application in fast-switching environments such as motor control inverters, switched-mode power supplies, and digital logic interfacing.

Belonging to Schaffner’s IT Series, the transformer benefits from advanced construction practices including optional vacuum potting, optional grounded shields, and very low partial discharge effects, all designed to improve EMC performance and long-term reliability. The IT253 is fully compliant with RoHS directives, underlining its suitability for modern electronics manufacturing.

Typical applications for the Schaffner IT253 include use in industrial drives and controls, PLC module isolation, signal and gate drive transmission, high-reliability communication systems, and general-purpose galvanic isolation in measurement or control interfaces. The durable construction and solid technical specification make it a trusted option for designers prioritizing signal integrity and electrical safety.

Explore more Pulse Transformers in the Schaffner range or browse similar high-frequency gate drive transformers in the EnvMart Transformers & Transformer Parts category.