# BLM18KN700EH1D

**Murata Electronics** · Ferrite Beads · 0603

BLM18KN700EH1D 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 |
|---|---|---|---|---|---|---|---|
| DC Resistance (max.), initial value |  |  |  | 0.022 | Ω | Initial value; measured with digital multimeter, excluding substrate and wire resistance | 1 |
| DC Resistance (max.), after testing |  |  |  | 0.032 | Ω | Values after testing (AEC-Q200) | 1 |
| Impedance tolerance |  | -25 |  | 25 | % | At 100MHz | 1 |
| Rated current |  |  |  | 2200 | mA | Rated current as printed; derated with operating temperature (footnote *1) | 1 |
| Operating temperature |  | -55 |  | 175 | °C | Operating temperature range | 1 |
| Storage temperature |  | -55 |  | 175 | °C | Storage temperature as printed in rating table (item 3) | 1 |
| Storage temperature (warehouse storage conditions) |  | -10 |  | 40 | °C | Warehouse storage before use; storage period within 6 months after delivery | 8 |
| Storage relative humidity (warehouse storage conditions) |  | 15 |  | 85 | %RH | Warehouse storage; no rapid change in temperature and humidity | 8 |
| Impedance (nominal) |  |  | 70 |  | Ω | At 100MHz; measured at 100MHz±1MHz, Keysight 4991A | 1 |
| Reflow soldering peak temperature (limit profile) |  |  |  | 260 | °C | Reflow limit profile, 10 s; 2 cycles max | 6 |

## CAD (KiCad official)

- Symbol: `BLM18KN700EH1D`
- Footprint: `Inductor_SMD:L_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `blm18kn700eh1d-etched.step` / `blm18kn700eh1d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `blm18kn700eh1d.step` / `blm18kn700eh1d.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/8590297933699710976) (8 pp, sha256 `da010bd01d365ffc`, retrieved 2026-10-19, 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/blm18kn700eh1d-datasheet.pdf)