PB0027NL

Current Sense Transformers Overview

The PB0027NL is a surface-mount current sense transformer from Pulse Electronics, designed for high-frequency applications. It features a primary-to-secondary turns ratio of 200:1 and supports a rated current of 35 A. The component operates within a frequency range of 50 kHz to 500 kHz. Key electrical specifications include a primary DC resistance of 0.42 milliohms, a secondary DC resistance of 2.9 ohms, and an inductance of 22.4 mH. The device utilizes gull-wing termination styles and measures 15.00 mm by 19.91 mm with a maximum height of 10.00 mm.

Current Sense Transformers Feature Summary

• Provides precise AC current measurement through a defined 200:1 turns ratio
• Supports high primary current ratings up to 35 A for robust circuit monitoring
• Operates effectively across a wide frequency spectrum from 50 kHz to 500 kHz
• Features low primary DC resistance to minimize insertion loss in power paths

Current Sense Transformers Applications

• Current sensing in switch-mode power supplies
• Overcurrent protection circuits in industrial electronics
• Power monitoring systems requiring isolated feedback
• High-frequency inverter control loops

Current Sense Transformers Procurement Notes

Verify the specific suffix configuration when ordering, as variants such as PB0027NLT may offer different packaging options like cut tape or reels compared to the standard tray packaging. Confirm that the selected variant meets the required mechanical footprint and termination style for the target PCB layout. Ensure compliance with RoHS standards and check for any recent product change notifications regarding manufacturing locations or material compositions before finalizing procurement plans.

Current Sense Transformers Selection Notes

Select this component based on its 35 A current rating and 200:1 transformation ratio to ensure accurate signal scaling for downstream sensing amplifiers. Evaluate the 22.4 mH inductance value against the minimum load requirements of the application to prevent saturation or signal distortion at lower frequencies. Consider the 0.42 milliohm primary resistance impact on overall system efficiency and thermal management within the constrained SMD package dimensions.

Current Sense Transformers Part Context

This part belongs to the PB002XNL series of current transformers manufactured by Pulse Electronics. The series is characterized by surface-mount construction suitable for automated assembly processes. These components are engineered for board-mounted integration, providing isolation between high-voltage primary circuits and low-voltage secondary sensing networks while maintaining compact physical profiles.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.