PH9185.034NL

Overview

The PH9185.034NL is a high-isolation surface-mount pulse transformer from the EP7 Platform series by Pulse Electronics. Designed for switch-mode applications, it features reinforced insulation suitable for isolated power supply drivers and compatibility with Maxim MAX253 transceivers. Key electrical specifications include an inductance of 750 µH (±45%), a turns ratio of 3:4, and a maximum DC resistance of 0.50 Ω between pins 1 and 3. The component supports an operating temperature range from -40°C to +125°C and provides 4000 Vrms isolation voltage with 8mm creepage distance.

Feature Summary

• Reinforced insulation design compliant with UL Class F standards for isolated power supply drivers
• Dual primary and dual secondary winding configuration supporting push-pull converter topologies
• Surface mount package optimized for automated assembly processes

Applications

• Powering RS-485/RS-232 transceivers via Maxim MAX253 compatible circuits
• Industrial control systems requiring high isolation barriers
• Building automation networks utilizing isolated communication interfaces
• Smart grid infrastructure employing robust signal transmission components

Procurement Notes

Verify that the specific suffix matches the required packaging format, as tape-and-reel variants may differ in handling requirements. Confirm RoHS3 compliance status through official documentation prior to integration. Ensure the selected variant aligns with the intended manufacturing process for surface-mount technology. Cross-reference the manufacturer part number against distributor catalogs to avoid confusion with similar model numbers in the same series.

Selection Notes

Select this component when designing circuits requiring high isolation voltage and compatibility with standard RS-485 or RS-232 driver ICs. The 750 µH inductance value suits typical switching frequencies around 100 kHz. Consider the physical dimensions of 10 mm x 10 mm for PCB layout constraints. Evaluate the thermal performance within the specified -40°C to +125°C range for harsh environment deployments.

Part Context

This transformer belongs to the PH9185 series, which utilizes the EP7 platform architecture. The series is engineered for high-frequency switching applications where electrical isolation is critical. It serves as a key passive component in digital communication interfaces, ensuring signal integrity while maintaining safety barriers between different voltage domains in electronic systems.

Replacement Considerations

PH9185.034NLT is a direct equivalent variant differing primarily in reel packaging configuration.