# BLM18BB100SH1D

**Murata Electronics** · Ferrite Beads · 0603

BLM18BB100SH1D 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 | One electrode of the two-terminal ferrite bead (10 ohm ±25% at 100MHz, DC resistance 0.10 ohm max., rated current 700 mA at 85°C); the part is symmetric and not polarized. |
| 2 | 2 | passive | Other electrode of the two-terminal ferrite bead in series with pin 1 (equivalent circuit inductor plus resistor), rated 700 mA at 85°C and 0.20 ohm max. DC resistance at 125°C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Murata Electronics |
| Package | 0603 |
| Category | Bead/Filter/EMI Optimization |
| 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 (at 100MHz) |  | -25 |  | 25 | % | Impedance at 100MHz, printed as 10±25% | 2 |
| Impedance change after AEC-Q200 stresses (at 100MHz) |  | -30 |  | 30 | % | After AEC-Q200 stress tests, BLM18_SH series (not BLM18SN/KG) | 3 |
| DC Resistance (initial values) |  |  |  | 0.1 | Ω | Initial values, standard testing conditions (*1) | 2 |
| DC Resistance (after testing) |  |  |  | 0.2 | Ω | After testing | 2 |
| Operating Temperature |  | -55 |  | 125 | °C |  | 2 |
| Storage Temperature |  | -55 |  | 125 | °C |  | 2 |
| Rated Current |  |  | 700 |  | mA | Single printed value; no derating note (*2) applies to this part | 2 |
| Impedance (nominal, at 100MHz) |  |  | 10 |  | Ω | at 100MHz±1MHz | 2 |

## CAD (KiCad official)

- Symbol: `BLM18BB100SH1D`
- Footprint: `Inductor_SMD:L_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `blm18bb100sh1d-etched.step` / `blm18bb100sh1d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `blm18bb100sh1d.step` / `blm18bb100sh1d.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/8590162931322019840) (10 pp, sha256 `83236cadbe089a97`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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/blm18bb100sh1d-datasheet.pdf)