FN402-2.5-02

Overview

The FN402-2.5-02 is a single-phase EMI power line filter from the Schaffner FN402 series, designed for PCB mounting. It features a rated current of 2.5 A and a voltage rating of 250 VAC. The component operates within a frequency range of 0 Hz to 400 Hz and utilizes solder pin termination. Key electrical parameters include an inductance of 2 mH, capacitance of 100 nF, and a leakage current of 373 µA. It supports through-hole installation with dimensions of 45 mm length, 28 mm depth, and 16.5 mm height.

Feature Summary

• Provides electromagnetic interference suppression for single-phase AC/DC circuits
• Designed for low-cost printed circuit board integration
• Supports operation up to 400 Hz frequency range

Applications

• Medical equipment power supplies
• Industrial control systems
• Consumer electronics power modules

Procurement Notes

Verify that the specific part number matches the required current and voltage ratings for your application. Confirm compliance with relevant safety standards such as UL, CSA, or IEC/EN if required by your design specifications. Ensure the PCB layout accommodates the through-hole pin spacing and physical dimensions provided in the datasheet. Cross-reference the manufacturer's latest documentation to confirm component availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when a compact, low-cost solution is needed for single-phase filtering applications requiring 2.5 A capacity. Consider the 2 mH inductance and 100 nF capacitance values for appropriate noise attenuation characteristics. Evaluate the 373 µA leakage current against safety requirements for medical or sensitive electronic devices. Ensure the operating temperature range of -25°C to 100°C aligns with the environmental conditions of the target system.

Part Context

This component belongs to the Schaffner FN402 series, which offers a range of low-cost PCB-mounted filters. Variants in this series differ primarily in current ratings, such as 0.5 A, 1 A, 1.6 A, 4 A, and 6.5 A options. The FN402B variant specifically targets medical applications with enhanced safety features. This model serves as a standard EMC solution for general-purpose power line filtering in compact electronic designs.

Replacement Considerations

Compatible substitutes include other FN402 series variants like FN402-1.6-02 or FN402-4-02 if current ratings allow adjustment. The FN405 series may serve as an alternative for similar PCB-mounting requirements. Verify that any replacement maintains equivalent inductance, capacitance, and voltage ratings to ensure consistent performance.