# BLM18SP102SZ1D

**Murata Electronics** · Ferrite Beads · 0603

BLM18SP102SZ1D from Murata Electronics, in a 0603. 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 | 0603 |
| Category | Filters |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Rated current (85°C column) |  |  |  | 1200 | mA | at 85℃ column, footnote *1 | 1 |
| Rated current (125°C column) |  |  |  | 800 | mA | at 125℃ column, footnote *1 | 1 |
| DC resistance (initial values) |  |  |  | 0.185 | Ω | Initial values, standard testing conditions (*1) | 1 |
| DC resistance (second value column) |  |  |  | 0.222 | Ω | Values after testing column (see review_required) | 1 |
| Impedance tolerance (at 100MHz) |  | -25 |  | 25 | % | at 100MHz±1MHz (impedance 1000±25%) | 1 |
| Impedance |  |  | 1000 |  | Ω | at 100MHz | 1 |
| Impedance change after AEC-Q200 stress tests |  | -30 |  | 30 | % | after AEC-Q200 stress tests (high temp exposure, temperature cycling, biased humidity, operational life, soldering heat); applies to this part (not BLM18SN/KG) | 4 |
| Operating temperature |  | -55 |  | 125 | °C |  | 2 |
| Storage temperature |  | -55 |  | 125 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `BLM18SP102SZ1D`
- Footprint: `Inductor_SMD:L_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `blm18sp102sz1d-etched.step` / `blm18sp102sz1d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `blm18sp102sz1d.step` / `blm18sp102sz1d.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/8588959405949784064) (11 pp, sha256 `8c5a5d8e54ee31c6`, retrieved 2026-10-17, 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/blm18sp102sz1d-datasheet.pdf)