# CM32254R7KSB

**ABC(千如)** · Power Inductors · 1210

CM32254R7KSB 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 (nominal, CM32254R7) | L |  | 4.7 |  | μH | Part-number value 4R7 = 4.70 μH; test frequency and Q not mapped (see review_required) | 2 |
| Inductance tolerance (K) |  | -10 |  | 10 | % | Tolerance code K = ±10% per datasheet legend (J = ±5%, K = ±10%, M = ±20%) | 2 |
| Operating temperature range | Top | -40 |  | 125 | ℃ | Operating temp. -40℃ to +125℃ (General Specification c) | 1 |
| Ambient temperature | Tamb |  |  | 100 | ℃ | Ambient temp. 100℃ max. (General Specification b) | 1 |
| Temperature rise | ΔT |  |  | 20 | ℃ | Temp. rise 20℃ max. with rated current applied for 10 minutes (Reliability test 12) | 7 |
| Inductance drop at saturation current |  |  |  | 10 | % | Applied rated current for 5 seconds; inductance shall not drop more than 10% max | 7 |
| Resistance to solder heat |  |  |  | 260 | ℃ | 260℃ for 10 secs (General Specification f) | 1 |
| Insulation resistance | IR | 1000 |  |  | MΩ | DC 100V applied between terminal and coating for 1 minute (Reliability test 16) | 7 |

## CAD (KiCad official)

- Symbol: `CM32254R7KSB`
- Footprint: `Inductor_SMD:L_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `cm32254r7ksb-etched.step` / `cm32254r7ksb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cm32254r7ksb.step` / `cm32254r7ksb.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/8756597476927385600) (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/cm32254r7ksb-datasheet.pdf)