# DSE322515-220M-HF

**DDY** · Power Inductors · 1210

DSE322515-220M-HF from DDY, 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 | DDY |
| 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 |
|---|---|---|---|---|---|---|---|
| Inductance tolerance (M: ±20%) |  | -20 |  | 20 | % | Suffix M in part number (±20%) | 2 |
| DC resistance | DCR |  |  | 0.972 | Ω |  | 4 |
| Saturation DC current | Isat |  |  | 0.5 | A | Inductance drop approx. 30% of L0 at Isat | 4 |
| Self-resonant frequency | SRF | 20 |  |  | MHz |  | 4 |
| Rated DC current | Irms |  | 0.45 |  | A | Temperature rise approx. 40°C at Irms | 4 |
| Inductance (nominal) | L |  | 22 |  | µH | 1MHz/1.0V | 4 |
| Operating temperature range |  | -40 |  | 125 | °C | Individual chip without packing | 2 |
| Storage temperature range |  | -40 |  | 85 | °C | Packaging conditions; RH 70% (Max.) | 2 |

## CAD (KiCad official)

- Symbol: `DSE322515-220M-HF`
- Footprint: `Inductor_SMD:L_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `dse322515-220m-hf-etched.step` / `dse322515-220m-hf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dse322515-220m-hf.step` / `dse322515-220m-hf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DDY datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603371742979244032) (7 pp, sha256 `0b2aed73f3378213`, 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/dse322515-220m-hf-datasheet.pdf)