This document introduces the LPT-4545 series surface mount toroidal inductors/transformers from Vishay Dale. The product is designed for DC to DC converter applications with minimal EMI radiation. It supports the growing need for efficient DC to DC converters in battery operated equipment and offers versatility with two separate windings that can be connected in series or parallel. The product is supplied on tape and reel and is pick and place compatible. Custom versions and turns ratios are available upon request. The document also provides the standard electrical specifications for different models in the LPT-4545 series.
The LPT-4545 series provides surface‑mount toroidal inductors and transformers in three core variants: KOOL‑MU® (LA), Powder Iron (LB) and MPP (LC). The parts are designed for minimal EMI in DC‑to‑DC converter applications and support series or parallel winding configurations.
Data includes inductance values, tolerance, DCR, physical dimensions, schematic connection diagrams, part marking conventions and tape‑and‑reel packaging details for automated assembly.
| Core type LA | KOOL‑MU® |
|---|---|
| Core type LB | Powder Iron |
| Core type LC | MPP |
| DCR (LA variant) | 0.832 Ω |
| Maximum diameter (LA) | 11.43 mm ± 0.127 mm |