PA1282NL

Overview

The PA1282NL is a surface mount flyback transformer manufactured by Pulse Electronics, designed for power applications. It features an EP10 core type and operates within a temperature range of -40°C to +130°C. The component has a maximum power rating of up to 30W. Electrical specifications include a primary inductance of 253.4µH with ±10% tolerance when measured between pins 3 and 4, and a maximum leakage inductance of 7.5µH with pins 5 and 6 shorted. The physical dimensions are 13.34mm in length, 10.70mm in width, and a maximum height of 9.27mm.

Feature Summary

• Designed for forward and flyback converter topologies
• Supports power ratings up to 30W
• Utilizes wire-wound construction on an EP10 core

Applications

• Flyback power supply circuits
• Forward converter designs
• Board mount power transformers

Procurement Notes

Verify the specific datasheet version and pin configuration before integration, as transformer specifications can vary significantly between manufacturing batches or regional variants. Confirm that the 253.4µH inductance measurement aligns with your circuit requirements, noting the specific test conditions regarding pin connections. Ensure the operating temperature range of -40°C to +130°C meets your environmental constraints. Cross-reference the physical footprint dimensions to guarantee compatibility with your PCB layout and assembly processes.

Selection Notes

Select this component for applications requiring a compact, surface-mount flyback transformer with moderate power handling capabilities. The EP10 package offers a balance between size and thermal performance suitable for various industrial and commercial power supplies. Consider the specific inductance tolerances and leakage inductance limits to ensure they fit within your converter's efficiency and regulation targets. Evaluate the lead-free compliance status if required by your assembly standards.

Part Context

The PA1282NL belongs to Pulse Electronics' portfolio of board-mount power transformers, specifically utilizing the EP10 magnetic core structure. This series is engineered for switch-mode power supply applications where space constraints and thermal management are critical. The component represents a standard solution for low-to-medium power conversion tasks, providing reliable isolation and energy transfer in compact form factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify mechanical and electrical compatibility carefully if considering alternative manufacturers.