PH9494.150NLT

Current Sense Transformers Overview

The PH9494.150NLT is a board-mount current sensing transformer from Pulse Electronics, designed for high-current applications up to 30 A. It features a 150:1 turns ratio and an inductance of 5 mH (with some sources citing 5.63 mH). The component operates within a frequency range of 20 kHz to 1 MHz and has a secondary DC resistance of 0.35 mOhms. It supports isolation voltages of 1200 Vrms or 2250 Vdc. The device utilizes SMD/SMT mounting with dimensions of 13 mm length, 10.5 mm width, and 7.2 mm height. It functions reliably between -40°C and +125°C.

Current Sense Transformers Feature Summary

• Provides precise current stepping down via a 150:1 turns ratio for accurate power monitoring.
• Supports high primary currents up to 30 A with low secondary coil resistance.
• Offers robust electrical isolation suitable for demanding power control environments.

Current Sense Transformers Applications

• Power supply current monitoring circuits
• Industrial motor drive control systems
• High-frequency power conversion feedback loops

Current Sense Transformers Procurement Notes

Verify the specific datasheet version when ordering, as documentation references indicate potential variations in inductance values (5 mH vs 5.63 mH) and isolation ratings (1200 Vrms vs 2250 Vdc) across different revisions. Confirm that the required insulation class matches the target application's safety standards before finalizing procurement specifications.

Current Sense Transformers Selection Notes

Select this component when a 150:1 transformation ratio is required for currents up to 30 A. Ensure the operating frequency falls within the 20 kHz to 1 MHz range. Consider the physical footprint of 13x10.5x7.2 mm for PCB layout constraints. Verify thermal management capabilities for operation up to +125°C if used in high-temperature industrial settings.

Current Sense Transformers Part Context

This part belongs to the PMS9494/PH9494 series of EE8 core current transformers. It shares mechanical dimensions and mounting styles with variants like PMS9494.200NLT and PMS9494.150NLT, differing primarily in turns ratio and inductance. The series is designed for surface-mount integration in compact power electronics.

Current Sense Transformers Replacement Considerations

PMS9494.150NLT is a direct equivalent part number. PMS9494.200NLT serves as a substitute if a 200:1 ratio is acceptable. Cross-reference datasheets to confirm matching inductance and voltage ratings before substitution.

Current Sense Transformers FAQ

What is the primary current rating of the PH9494.150NLT?

The component is rated for a maximum primary current of 30 A.

Does the PH9494.150NLT support surface mount technology?

Yes, it is designed for SMD/SMT installation on printed circuit boards.