component
BLM15BD121SZ1D
Public Made by Adomby adom
Murata Electronics Ferrite Beads, 0402. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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BLM15BD121SZ1D
Murata Electronics · Ferrite Beads · 0402
BLM15BD121SZ1D from Murata Electronics, in a 0402. 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 | 0402 |
| 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 100 MHz | -25 | 25 | % | Impedance 120±25% at 100 MHz (part-number table) | 2 | ||
| DC resistance, initial values | 0.3 | Ω | Initial values, max | 2 | |||
| DC resistance, values after testing | 0.4 | Ω | Values after testing, max | 2 | |||
| Impedance at 100 MHz (typical nominal) | 120 | Ω | at 100 MHz | 2 | |||
| Operating temperature range | -55 | 125 | °C | 1 | |||
| Storage temperature range | -55 | 125 | °C | 1 | |||
| Impedance change at 100 MHz after AEC-Q200 tests | -30 | 30 | % | Table A, after AEC-Q200 stress tests (e.g., high temperature exposure 1000 h at 125°C) | 4 | ||
| Impedance change at 100 MHz after ESD test | -40 | 40 | % | Table B, BLM15BB/BD series, after ESD per AEC-Q200-002 | 5 |
CAD (KiCad official)
- Symbol:
BLM15BD121SZ1D - Footprint:
Inductor_SMD:L_0402_1005Metric - 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files:
blm15bd121sz1d-etched.step/blm15bd121sz1d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);blm15bd121sz1d.step/blm15bd121sz1d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Murata Electronics datasheet (11 pp, sha256
2bf6dac775a7741c, 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).
# BLM15BD121SZ1D
**Murata Electronics** · Ferrite Beads · 0402
BLM15BD121SZ1D from Murata Electronics, in a 0402. 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 | 0402 |
| 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 100 MHz | | -25 | | 25 | % | Impedance 120±25% at 100 MHz (part-number table) | 2 |
| DC resistance, initial values | | | | 0.3 | Ω | Initial values, max | 2 |
| DC resistance, values after testing | | | | 0.4 | Ω | Values after testing, max | 2 |
| Impedance at 100 MHz (typical nominal) | | | 120 | | Ω | at 100 MHz | 2 |
| Operating temperature range | | -55 | | 125 | °C | | 1 |
| Storage temperature range | | -55 | | 125 | °C | | 1 |
| Impedance change at 100 MHz after AEC-Q200 tests | | -30 | | 30 | % | Table A, after AEC-Q200 stress tests (e.g., high temperature exposure 1000 h at 125°C) | 4 |
| Impedance change at 100 MHz after ESD test | | -40 | | 40 | % | Table B, BLM15BB/BD series, after ESD per AEC-Q200-002 | 5 |
## CAD (KiCad official)
- Symbol: `BLM15BD121SZ1D`
- Footprint: `Inductor_SMD:L_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `blm15bd121sz1d-etched.step` / `blm15bd121sz1d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `blm15bd121sz1d.step` / `blm15bd121sz1d.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/8590420025435070464) (11 pp, sha256 `2bf6dac775a7741c`, 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/blm15bd121sz1d-datasheet.pdf)