component
BLM21BD272SN1L
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
markdownBLM21BD272SN1L
Murata Electronics · Ferrite Beads · 0805
BLM21BD272SN1L 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 | Z | -25 | 25 | % | At 100MHz, standard testing condition; printed as ±25% for 2700±25% | 2 | |
| DC resistance max, initial values | 0.8 | Ω | Initial values | 2 | |||
| DC resistance max, after testing | 0.9 | Ω | After testing | 2 | |||
| Impedance change after resistance to soldering heat | -30 | 30 | % | Resistance to soldering heat (7-2-5), at 100MHz; ±30% applies to this type (±50% only for BLM21SN) | 4 | ||
| Rated current | 200 | mA | Rated current for 2700±25% variant | 2 | |||
| Operating temperature | -55 | 125 | °C | Operating temperature | 3 | ||
| Storage temperature | -55 | 125 | °C | Storage temperature | 3 | ||
| Warehouse storage temperature before mounting | -10 | 40 | °C | Warehouse storage before mounting (section 10-11) | 11 | ||
| Warehouse storage relative humidity before mounting | 15 | 85 | %RH | Warehouse storage before mounting (section 10-11) | 11 | ||
| Impedance at 100MHz (nominal) | Z | 2700 | Ω | At 100MHz, standard testing condition | 2 |
CAD (KiCad official)
- Symbol:
BLM21BD272SN1L - Footprint:
Inductor_SMD:L_0805_2012Metric - 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files:
blm21bd272sn1l-etched.step/blm21bd272sn1l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);blm21bd272sn1l.step/blm21bd272sn1l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Murata Electronics datasheet (11 pp, sha256
651645d072b5710a, 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).