This document mainly introduces the characteristics of EPIXXXXXXAC5 and EPIXXXXXXXXAC5-LF, including rated current, inductance, impedance, temperature rise, rated voltage, etc.
The EPIXXXXXXAC5 series are thru‑hole power inductors optimized for National LM257X series switching converters. Low‑loss material enables operation at high‑frequency (e.g., 52 kHz) in buck, boost, or output filtering applications, and the parts are also suitable for high‑quality filter designs.
Two variants are offered: the standard part and a lead‑free version indicated by the “‑LF” suffix. Packages are available in vertical (V) and horizontal (H) mount styles, with dimensions given in inches/mm. The inductors feature SnPb hot‑tin dip finish, a peak solder rating of 225 °C (260 °C for wave solder), weigh 51 g each, and are supplied in tubes.
| Inductance | 220 µH |
|---|---|
| DCR | 260 mΩ |
| Current Rating | 3000 mA |
| Core Loss | 510 mW |
| Temperature Rise | 23 °C |
The "-LF" suffix indicates a lead‑free version of the part.
The peak solder rating is 225 °C (260 °C for wave solder process).
Each inductor weighs 51 grams.