# CM4532270KSB

**ABC(千如)** · Power Inductors · 1812

CM4532270KSB from ABC(千如), in a 1812. 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 | 1812 |
| 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 | L | -10 |  | 10 | % | Tolerance code K (±10%) per MPN position 10 | 2 |
| Inductance (nominal) | L |  | 27 |  | µH |  | 2 |
| DC resistance | RDC |  |  | 3.6 | Ω |  | 2 |
| Rated current (DC) | IDC |  |  | 170 | mA |  | 2 |
| Inductance drop at saturation current |  |  |  | 10 | % | Applied rated current for 5 seconds; inductance shall not drop more than 10% max | 6 |
| Temperature rise at rated current |  |  |  | 20 | ℃ | Applied rated current for 10 minutes | 6 |
| Operating temperature |  | -40 |  | 125 | ℃ | Operating temperature | 1 |
| Ambient temperature (rated current) |  |  |  | 100 | ℃ | Ambient temperature at which rated current applies | 1 |
| Insulation resistance | IR | 1000 |  |  | MΩ | 100 V DC applied between inductor terminal and coating for 1 minute | 6 |
| Solder heat resistance peak temperature |  |  |  | 260 | ℃ | 10 seconds | 1 |
| Terminal pull strength |  | 1.5 |  |  | kg | Minimum terminal pull strength | 1 |
| Reflow peak temperature |  |  |  | 250 | ℃ | Reflow profile peak temperature | 1 |
| Time above 217 ℃ |  | 60 |  | 150 | s | Reflow profile, max time above 217 ℃ | 1 |
| Time above 245 ℃ |  | 20 |  | 40 | s | Reflow profile, max time above 245 ℃ | 1 |
| Average ramp-up rate (200-250 ℃) |  |  |  | 3 | ℃/second | Reflow profile, 200 ℃ to 250 ℃ average ramp-up rate | 1 |
| Storage temperature |  | 5 |  | 30 | ℃ | Storage conditions; storage period less than 12 months | 7 |
| Storage humidity |  | 10 |  | 60 | %RH | Storage conditions; storage period less than 12 months | 7 |

## CAD (KiCad official)

- Symbol: `CM4532270KSB`
- Footprint: `Inductor_SMD:L_1812_4532Metric`
- 3D model: 1812 (KiCad packages3D, STEP)
- 3D model files: `cm4532270ksb-etched.step` / `cm4532270ksb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cm4532270ksb.step` / `cm4532270ksb.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/8756597521366171648) (7 pp, sha256 `c6acc6e6b144325a`, 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/cm4532270ksb-datasheet.pdf)