component
BLM18BD421SN1D
Public Made by Adomby adom
Murata Electronics Ferrite Beads, 0603. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownBLM18BD421SN1D
Murata Electronics · Ferrite Beads · 0603
BLM18BD421SN1D 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 from the LCSC catalog entry for this part (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Impedance | Z | 420 | Ω | at 100 MHz, catalog attribute (LCSC C113023) | catalog | ||
| Tolerance | -25 | 25 | % | catalog attribute (LCSC C113023) | catalog | ||
| Rated current | 250 | mA | catalog attribute (LCSC C113023) | catalog |
CAD (KiCad official)
- Symbol:
BLM18BD421SN1D - Footprint:
Inductor_SMD:L_0603_1608Metric - 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files:
blm18bd421sn1d-etched.step/blm18bd421sn1d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);blm18bd421sn1d.step/blm18bd421sn1d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Murata Electronics datasheet (12 pp, sha256
662fddeae58fa04f, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).