# BLM18SP102SH1D

**Murata Electronics** · Ferrite Beads · 0603

BLM18SP102SH1D 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 |
|---|---|---|---|---|---|---|---|
| Impedance tolerance | Z | -25 |  | 25 | % | at 100MHz; for 1000 Ω nominal (printed ±25%) | 1 |
| DC resistance (initial) | DCR |  |  | 0.185 | Ω | Initial values; standard testing conditions | 1 |
| DC resistance (after testing) | DCR |  |  | 0.222 | Ω | After testing (AEC-Q200) | 1 |
| Rated current at 85°C |  |  |  | 1200 | mA | Operating temperature 85°C; rated current derated per *2 with operating temperature | 1 |
| Rated current at 125°C |  |  |  | 800 | mA | Operating temperature 125°C; rated current derated per *2 | 1 |
| Operating temperature |  | -55 |  | 125 | °C | Operating temperature | 2 |
| Storage temperature |  | -55 |  | 125 | °C | Storage temperature | 2 |
| Impedance change after high temperature exposure | Z | -30 |  | 30 | % | After 1000 h at 125°C (AEC-Q200 item 3, Table A); impedance at 100MHz | 3 |
| Impedance change after temperature cycling | Z | -30 |  | 30 | % | After 1000 cycles, -55°C to +125°C (AEC-Q200 item 4, Table B); impedance at 100MHz | 3 |
| Impedance (nominal) | Z |  | 1000 |  | Ω | at 100MHz | 1 |

## CAD (KiCad official)

- Symbol: `BLM18SP102SH1D`
- Footprint: `Inductor_SMD:L_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `blm18sp102sh1d-etched.step` / `blm18sp102sh1d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `blm18sp102sh1d.step` / `blm18sp102sh1d.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/8589030947711037440) (10 pp, sha256 `83236cadbe089a97`, 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/blm18sp102sh1d-datasheet.pdf)