PA3948.003NL

Pulse Transformers Overview

The PA3948.003NL is a surface mount flyback transformer manufactured by Pulse Electronics, designed for board-mounted power conversion applications. It features an EP10 package with eight terminals and operates within a temperature range of -40°C to 130°C. The component provides primary voltage handling from 18V to 76V and delivers a secondary voltage of 3.3V. Key electrical specifications include an inductance of 40µH and a pulse inductance of 32µH. These parameters define its performance characteristics for signal isolation and energy storage in switching power supplies.

Pulse Transformers Feature Summary

• Surface mount construction for automated PCB assembly
• Flyback topology for isolated power conversion
• EP10 package design for compact integration

Pulse Transformers Applications

• Power conversion systems
• Signal isolation circuits
• Switching power supply designs

Pulse Transformers Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer documentation may undergo revisions. Confirm that the EP10 package dimensions align with the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final application. Cross-reference the terminal count and pinout configuration against the schematic to prevent installation errors during production.

Pulse Transformers Selection Notes

Select this component for applications requiring isolated flyback transformation with surface mount compatibility. The EP10 package offers a balance between power handling and size constraints. Consider the 3.3V secondary output and 18-76V primary input range when designing the circuit topology. Verify thermal management needs given the 130°C maximum operating temperature limit for reliable long-term operation.

Pulse Transformers Part Context

This part belongs to the Pulse Electronics power transformer family, specifically engineered for board-mount implementations. The product line focuses on providing reliable isolation and energy transfer in compact electronic devices. The PA3948 series utilizes standardized packaging to facilitate efficient manufacturing processes while maintaining consistent electrical performance across production batches.

Pulse Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.