component
BLM21BD182SN1D
Public Made by Adomby adom
Murata Electronics Ferrite Beads, 0805. 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
markdownBLM21BD182SN1D
Murata Electronics · Ferrite Beads · 0805
BLM21BD182SN1D from Murata Electronics, in a 0805. 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 | 0805 |
| 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 | /Z/ | -25 | 25 | % | Impedance at 100MHz; 1800±25% printed for BLM21BD182SN1D | 2 | |
| Impedance at 100MHz (nominal) | /Z/ | 1800 | Ω | 100MHz, standard testing condition | 2 | ||
| DC resistance, initial values | DCR | 0.5 | Ω | Max.; initial values | 2 | ||
| DC resistance, after testing | DCR | 0.6 | Ω | Max.; after testing (column as printed) | 2 | ||
| Rated current | IR | 250 | mA | Rated current for 1800Ω, BD series; derate per operating-temperature chart on page 3 | 2 | ||
| Operating temperature | TOP | -55 | 125 | °C | Operating temperature range | 3 | |
| Storage temperature | TSTG | -55 | 125 | °C | Storage temperature range | 3 | |
| Impedance change after resistance to soldering heat | ΔZ | -30 | 30 | % | Resistance to soldering heat test, impedance at 100MHz; within ±30% (±50% applies only to BLM21SN) | 4 | |
| Reflow limit soldering profile peak temperature | 260 | °C | Reflow limit profile: 260°C, 10s max | 8 |
CAD (KiCad official)
- Symbol:
BLM21BD182SN1D - Footprint:
Inductor_SMD:L_0805_2012Metric - 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files:
blm21bd182sn1d-etched.step/blm21bd182sn1d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);blm21bd182sn1d.step/blm21bd182sn1d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Murata Electronics datasheet (11 pp, sha256
2308ec7e5c5e4bb5, retrieved 2026-10-19, 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).