# YSMC322512H-R47MB

**YJYCOIN** · Power Inductors · 1210

YSMC322512H-R47MB from YJYCOIN, in a 1210. 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 | YJYCOIN |
| Package | 1210 |
| Category | Inductors, Coils, Chokes |
| 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 |
|---|---|---|---|---|---|---|---|
| DC resistance |  |  | 14 | 19 | mΩ | MPN YSMC322512H-R47MB; referenced to 25 ℃ ambient | 17 |
| Heat rating current |  |  | 7.5 | 7.2 | A | DC current giving temperature rise of approx. 40 ℃ (as printed); printed typ exceeds max | 17 |
| Saturation current |  |  | 8.6 | 8.2 | A | Current at which inductance decreases to approx. 70% of initial value; printed typ exceeds max | 17 |
| Inductance tolerance |  | -20 |  | 20 | % | Tolerance code M = ±20% | 1 |
| Insulation resistance |  | 100 |  |  | MΩ | 100 VDC between inductor coil and middle of top surface of body for 60 s | 24 |
| Operating temperature (including self-temperature rise) |  | -55 |  | 125 | ℃ | Including self-temperature rise | 1 |
| Part temperature (ambient + temperature rise) |  |  |  | 125 | ℃ | Worst case operating conditions; should not exceed | 23 |
| Peak package body temperature (Tp), Pb-free reflow | Tp |  |  | 260 | ℃ | Pb-free reflow per J-STD-020D; package thickness <1.6 mm, any volume (Table 2) | 25 |
| Allowed re-flow times |  |  |  | 2 | times | Reflow | 25 |
| Recommended storage temperature |  | 15 |  | 35 | ℃ | Warehouse storage recommended by manufacturer | 23 |
| Recommended storage humidity |  | 25 |  | 75 | %RH | Warehouse storage recommended by manufacturer | 23 |
| Inductance | L |  | 0.47 |  | uH | Measured at 1 MHz | 17 |

## CAD (KiCad official)

- Symbol: `YSMC322512H-R47MB`
- Footprint: `Inductor_SMD:L_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `ysmc322512h-r47mb-etched.step` / `ysmc322512h-r47mb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ysmc322512h-r47mb.step` / `ysmc322512h-r47mb.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [YJYCOIN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604430390300471296) (30 pp, sha256 `4cdf5ed2b516c32e`, 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/ysmc322512h-r47mb-datasheet.pdf)