# DK5V45R10SL

**Shenzhen DongKe Semicon** · Synchronous Rectifier Controllers · TO-252

DK5V45R10SL from Shenzhen DongKe Semicon, in a TO-252. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NC | unconnected | No connect. Leave floating; not internally bonded to any functional node. |
| 2 | K | passive | Cathode of the equivalent rectifier. Internally the drain of the 45 V NMOS and the self-powered VCC pickup node; must stay below the 45 V V(BR)DSS in application. |
| 3 | A | passive | Anode of the equivalent rectifier. Internally the source of the 45 V / 10 mΩ NMOS; conducts up to 45 A continuous / 60 A peak forward current when the smart-detect logic turns the MOSFET on. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen DongKe Semicon |
| Package | TO-252 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## Ordering variants

Same part, different packaging or reel option.

- `DK5V45R10SL`

## CAD (KiCad official)

- Symbol: `DK5V45R10SL`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `dk5v45r10sl-etched.step` / `dk5v45r10sl-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dk5v45r10sl.step` / `dk5v45r10sl.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen DongKe Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603108753344643072) (8 pp, sha256 `66cda6e3e9429822`, retrieved 2026-08-17, 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:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/dk5v45r10sl-datasheet.pdf)