SF1006DS 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. Positive terminal of the superfast recovery rectifier diode; forward current flows into this pin (up to 10.0 A DC average, 170 A IFSM 8.3 ms half-sine).
2	K	passive	Cathode. Electrically tied to the heat-slug tab (pin 4). Cathode of the rectifier diode; blocks up to 600 V VRRM in reverse.
3	NC	unconnected	No internal connection in this single-diode TO-252 package. Leave floating or tie to cathode for mechanical support.
4	K	passive	Cathode / heat-slug tab. Primary thermal path (RθJA = 15 °C/W when mounted on 10 cm x 10 cm x 1 mm copper). Electrically the cathode of the rectifier diode; internally shorted to pin 2.

Key specifications

Parameter	Value
Manufacturer	JUXING
Package	TO-252
Category	Diodes
Pins	4

Ordering variants

Same part, different packaging or reel option.

SF1006DS
SF1006DSVS

CAD (KiCad official)

Symbol: SF1006DS
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 (3 pp, sha256 ae7519c59b9da5cc, 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