# LQH43NH120J03L

**Murata Electronics** · Power Inductors · 1812

LQH43NH120J03L from Murata Electronics, in a 1812. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1 | passive | Terminal 1 of an unpolarised inductor or ferrite bead; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised inductor or ferrite bead; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Murata Electronics |
| Package | 1812 |
| Category | Inductors, Coils, Chokes |
| Pins | 2 |

## Electrical characteristics

Limits from the LCSC catalog entry for this part (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Inductance |  |  | 12 |  | µH | nominal, catalog attribute (LCSC C3224514) | catalog |
| Tolerance |  | -5 |  | 5 | % | catalog attribute (LCSC C3224514) | catalog |
| Rated current |  |  |  | 420 | mA | catalog attribute (LCSC C3224514) | catalog |

## CAD (KiCad official)

- Symbol: `LQH43NH120J03L`
- Footprint: `Inductor_SMD:L_1812_4532Metric`
- 3D model: 1812 (KiCad packages3D, STEP)
- 3D model files: `lqh43nh120j03l-etched.step` / `lqh43nh120j03l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lqh43nh120j03l.step` / `lqh43nh120j03l.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Murata Electronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590381590107742208) (9 pp, sha256 `f458d68fc90a78f7`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/lqh43nh120j03l-datasheet.pdf)