# BLM18KG601WH1D

**Murata Electronics** · Ferrite Beads · 0603

BLM18KG601WH1D 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 (at 100MHz) |  | -25 |  | 25 | % | Printed as 600±25% at 100MHz for BLM18KG601WH1D | 1 |
| DC resistance (max.), initial values |  |  |  | 0.18 | Ω | Initial values; digital multimeter, excludes substrate and wire resistance | 1 |
| DC resistance (max.), after testing |  |  |  | 0.195 | Ω | After testing (column alignment in table is garbled) | 1 |
| Rated current at 125°C operating temperature |  |  |  | 1000 | mA | At 125°C operating temperature; derated per figure above this temperature | 1 |
| Rated current at 150°C operating temperature |  |  |  | 500 | mA | At 150°C operating temperature | 1 |
| Operating temperature |  | -55 |  | 150 | °C |  | 1 |
| Storage temperature |  | -55 |  | 150 | °C |  | 1 |
| Impedance change after high temperature exposure (Table A) |  | -50 |  | 50 | % | 1000 h at 150°C (AEC-Q200 item 3); Table A applies also to temperature cycling and terminal strength | 2 |
| Impedance change after operational life (Table A) |  | -50 |  | 50 | % | Apply 150°C for 1000 h (AEC-Q200 item 8) | 3 |
| Impedance change after biased humidity (Table B, BLM18KG) |  | -50 |  | 50 | % | 1000 h at 85°C, 85%RH, max rated current applied | 3 |
| Impedance change after mechanical shock (Table C) |  | -30 |  | 30 | % | 1500g (14.7N), 0.5 ms half sine, MIL-STD-202 Method 213 Cond F | 3 |
| Impedance change after vibration (Table C) |  | -30 |  | 30 | % | 5g (0.049N), 10-2000Hz, 12 cycles each of 3 orientations, 20 minutes | 3 |
| Impedance (nominal, at 100MHz) |  |  | 600 |  | Ω | At 100MHz, measured 100MHz±1MHz with KEYSIGHT 4991A | 1 |

## CAD (KiCad official)

- Symbol: `BLM18KG601WH1D`
- Footprint: `Inductor_SMD:L_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `blm18kg601wh1d-etched.step` / `blm18kg601wh1d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `blm18kg601wh1d.step` / `blm18kg601wh1d.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/8559507582608953344) (6 pp, sha256 `0e2df7503223103b`, 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/blm18kg601wh1d-datasheet.pdf)