# CM32253R3KSB

**ABC(千如)** · Power Inductors · 1210

CM32253R3KSB from ABC(千如), 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 | ABC(千如) |
| 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 |  |  | 3.3 |  | μH |  | 2 |
| Tolerance (code K) |  | -10 |  | 10 | % | Tolerance code K = ±10% | 2 |
| Q | Q | 30 |  |  |  | Q test freq 7.960 MHz | 2 |
| SRF | SRF | 55 |  |  | MHz |  | 2 |
| Operating temperature |  | -40 |  | 125 | ℃ | Operating temp. | 1 |
| Ambient temperature |  |  |  | 100 | ℃ | Ambient temp. | 1 |
| Temperature rise |  |  |  | 20 | ℃ |  | 1 |
| Insulation resistance | IR | 1000 |  |  | MΩ | 100 V DC applied between terminal and coating for 1 minute | 7 |
| Inductance drop at saturation current |  |  |  | 10 | % | Applied rated current for 5 seconds; inductance drop not more than 10% max | 7 |

## CAD (KiCad official)

- Symbol: `CM32253R3KSB`
- Footprint: `Inductor_SMD:L_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `cm32253r3ksb-etched.step` / `cm32253r3ksb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cm32253r3ksb.step` / `cm32253r3ksb.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ABC(千如) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756597515032502272) (8 pp, sha256 `54c446058e64e12e`, retrieved 2026-10-18, 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/cm32253r3ksb-datasheet.pdf)