PH9385.045NLT

Overview

The PH9385.045NLT is a surface-mount pulse transformer manufactured by Pulse Electronics, designed for high-isolation applications. It features a turns ratio of 4:5 and an inductance of 3.2 mH. The component provides an isolation voltage of 4000 Vrms and supports a volt-time product of 109 V/us. It operates within a temperature range of -40°C to +125°C. The physical dimensions are 17 mm in length, 16 mm in width, and 7.5 mm in height.

Feature Summary

• Provides high electrical isolation with a rated voltage of 4000 Vrms between primary and secondary windings.
• Engineered for push-pull converter topologies with specific volt-time handling capabilities.
• Constructed for surface-mount technology (SMT) installation to facilitate automated assembly processes.

Applications

• RS-485 communication interface circuits
• Industrial control system signal isolation
• Power supply transformer driver stages

Procurement Notes

Verify the complete part number including the suffix NLT to ensure correct packaging configuration. Confirm that the 4000 Vrms isolation rating meets the safety requirements of the target application. Check RoHS compliance status against current regulatory standards. Ensure the operating temperature range aligns with the environmental conditions of the final device.

Selection Notes

Select this component when a 4:5 turns ratio and 3.2 mH inductance are required for isolated power or signal transmission. Consider the 17 mm x 16 mm footprint for PCB layout constraints. Evaluate the 109 V/us volt-time limit against the maximum duty cycle and frequency of the driving circuit to prevent saturation.

Part Context

This component belongs to the PH9385 series of high-isolation transformers from Pulse Electronics. The series includes various variants with different inductance values and turns ratios, such as the PH9385.034NLT and PH9385.015NLT, all sharing similar SMD package dimensions and isolation characteristics.

Replacement Considerations

Direct substitutes within the same series include PH9385.034NLT and PH9385.015NLT, though these have different inductance and turns ratio specifications. Verify functional compatibility before substitution.

FAQ

What is the maximum operating temperature for the PH9385.045NLT?

The maximum operating temperature is +125°C.

Does this transformer support RS-485 communication protocols?

Yes, the PH9385 series is documented as suitable for RS-485 communication applications.