PH9572.111NLT

Pulse Transformers Overview

The PH9572.111NLT is a surface-mount gate drive transformer manufactured by Pulse Electronics, designed for high-voltage isolation in power electronics. It features a single primary winding and dual secondary windings with a 1:1:1 turns ratio. Key electrical parameters include an inductance of 2.8 mH, a voltage rating of 1500 V, and a DC resistance (DCR) ranging from 0.85 to 0.95 Ohms. The component has a power rating of 6 W and supports a voltage-time product (Et) of 84.7 us. It operates within a temperature range of -40°C to +125°C and measures 10.2 mm by 7.5 mm.

Pulse Transformers Feature Summary

• Provides galvanic isolation between control circuitry and power switches via a 1500 V rated barrier.
• Features dual secondary windings to support half-bridge or full-bridge gate drive configurations.
• Designed for surface-mount assembly to facilitate automated PCB manufacturing processes.

Pulse Transformers Applications

• Gate drive isolation for IGBT modules
• Isolation for silicon carbide (SiC) MOSFET drivers
• High-frequency isolated power supply control loops

Pulse Transformers Procurement Notes

Verify the specific suffix NLT against the manufacturer's current datasheet to confirm packaging details and RoHS compliance status. Ensure the selected variant matches the required lead time and minimum order quantities defined by authorized distributors. Cross-reference the part number with official Pulse Electronics documentation to validate that no recent Product Change Notifications have altered the physical dimensions or internal construction.

Pulse Transformers Selection Notes

Select this component when a 1500 V isolation barrier is required for gate drive applications. The 2.8 mH inductance ensures adequate magnetizing inductance for typical PWM frequencies. Verify that the 0.85-0.95 Ohm DCR aligns with the thermal management capabilities of the target PCB layout. Confirm that the 10.2 mm x 7.5 mm footprint fits within the available board space constraints.

Pulse Transformers Part Context

This component belongs to the PH9572 series of power transformers from Pulse Electronics. The series is engineered for compact, high-reliability isolation in modern power conversion systems. These devices are commonly used in industrial motor drives and renewable energy inverters where robust signal transmission across high potential differences is critical.

Pulse Transformers Replacement Considerations

Consult official Pulse Electronics substitution guides for verified alternatives. Generic replacements may not match the specific 1500 V rating or 2.8 mH inductance requirements.