SF1004DS

@@ -0,0 +1,56 @@+# SF1004DS++**JUXING** · Fast Recovery / High Efficiency Diodes · TO-252++SF1004DS from JUXING, 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 | A | passive | Anode of the superfast recovery rectifier diode. Forward current flows from anode (pin 1) to cathode (pin 2/pin 4 tab). Rated 10.0 A average forward current. |+| 2 | K | passive | Cathode lead of the diode. In the TO-252 (D-PAK), the middle-lead position is electrically the same node as the tab (pin 4). Typically trimmed short on the physical part. |+| 3 | A | passive | Anode lead (second anode terminal). Datasheet's package schematic shows a second diode arrow from pin 3 to pin 4 (tab), indicating pin 3 is tied to the anode side of the die alongside pin 1. |+| 4 | K | passive | Cathode / thermal tab of the TO-252 (D-PAK). Primary heat-dissipation path (mounted on ~10 cm x 10 cm x 1 mm copper pad yields Rth(JA) = 15 C/W). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | JUXING |+| Package | TO-252 |+| Category | Diodes |+| Pins | 4 |++## Ordering variants++Same part, different packaging or reel option.++- `SF1001DS`+- `SF1002DS`+- `SF1003DS`+- `SF1004DS`+- `SF1005DS`+- `SF1006DS`+- `SF1001VS`+- `SF1002VS`+- `SF1003VS`+- `SF1004VS`+- `SF1005VS`+- `SF1006VS`++## CAD (KiCad official)++- Symbol: `SF1004DS`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [JUXING datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836246941413376) (3 pp, sha256 `b8a8c63768cb870c`, retrieved 2026-08-17, tier: lcsc)+- **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/sf1004ds-datasheet.pdf)

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