# NR252012-4R7M

**ZE(增益)** · Power Inductors · 1008

NR252012-4R7M from ZE(增益), in a 1008. 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 | One terminal of the 4.7µH (100kHz/1V) power inductor, non-polarized, with RDC 0.290Ω (±30%), Isat 1120mA and temperature-rise current 870mA. |
| 2 | 2 | passive | Second terminal of the 4.7µH (100kHz/1V) power inductor, non-polarized, with RDC 0.290Ω (±30%), Isat 1120mA and temperature-rise current 870mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZE(增益) |
| Package | 1008 |
| 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 (code M) |  | -20 |  | 20 | % | Tolerance code M = ±20% (part-numbering table, item 5) | 4 |
| Inductance (L) | L |  | 4.7 |  | µH | 100kHz/1V | 5 |
| DC resistance | RDC |  | 0.29 |  | Ω | Column header prints RDC (±30%); value at 100kHz/1V as printed | 5 |
| Saturation current | Isat |  | 1120 |  | mA | Isat column, single value as printed | 5 |
| Temperature-rise current | I△T |  | 870 |  | mA | I△T column, single value as printed | 5 |

## CAD (KiCad official)

- Symbol: `NR252012-4R7M`
- Footprint: `Inductor_SMD:L_1008_2520Metric`
- 3D model: 1008 (KiCad packages3D, STEP)
- 3D model files: `nr252012-4r7m-etched.step` / `nr252012-4r7m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nr252012-4r7m.step` / `nr252012-4r7m.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ZE(增益) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590907436129996801) (18 pp, sha256 `940c077a3dbdef72`, retrieved 2026-10-22, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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/nr252012-4r7m-datasheet.pdf)