# BLM18HG102SH1D

**Murata Electronics** · Ferrite Beads · 0603

BLM18HG102SH1D 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 | First electrode of the two-terminal ferrite bead, 1000 Ω ±25% at 100 MHz, rated 1000 mA at 85°C and 100 mA at 125°C per the datasheet rating table. |
| 2 | 2 | passive | Second electrode of the two-terminal ferrite bead, 1.6 Ω max DC resistance initially (1.7 Ω max after testing), non-polarized and interchangeable with pin 1. |

## 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 nominal 1000±25% at 100MHz (Standard Testing Conditions) | 1 |
| Impedance at 1GHz |  | 750 |  |  | Ω | At 1GHz, Standard Testing Conditions | 1 |
| DC Resistance |  |  |  | 100 | Ω | Initial values; digital multimeter; excludes substrate and wire resistance | 1 |
| Rated Current |  |  |  | 1000 | mA | Do not use beyond rated current (Standard Testing Conditions) | 1 |
| Typical rated current at 85°C |  |  | 1.6 |  | A | Typical value, column under 85°C heading | 1 |
| Typical rated current at 125°C |  |  | 1.7 |  | A | Typical value, column under 125°C heading | 1 |
| ESD Rank |  |  |  | 1 | kV | ESD Rank 1C (1 kV) per AEC-Q200-002 | 1 |
| Impedance change after high temperature exposure |  | -30 |  | 30 | % | After 1000 h at 125°C; measured at 100MHz; Table A | 2 |
| Operating Temperature |  | -55 |  | 125 | °C | Operating temperature range | 1 |
| Storage Temperature |  | -55 |  | 125 | °C | Storage temperature range | 1 |
| Reflow standard peak temperature |  | -3 | 245 | 3 | °C | Standard reflow profile, peak temperature 245°C±3°C | 7 |
| Reflow limit peak temperature |  |  |  | 260 | °C | Limit reflow profile, 260°C, 10 s, 2 cycles | 7 |
| Flow limit soldering temperature |  | -3 | 265 | 3 | °C | Limit flow profile, 265°C±3°C, 5 s max, 2 cycles | 6 |
| Soldering iron tip temperature |  |  |  | 350 | °C | Rework with soldering iron, tip temperature, 3 s, 2 times max | 7 |

## CAD (KiCad official)

- Symbol: `BLM18HG102SH1D`
- Footprint: `Inductor_SMD:L_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `blm18hg102sh1d-etched.step` / `blm18hg102sh1d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `blm18hg102sh1d.step` / `blm18hg102sh1d.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/8603038797508722688) (9 pp, sha256 `186f36afa14c4915`, retrieved 2026-10-29, 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/blm18hg102sh1d-datasheet.pdf)