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Contents

README

markdown

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)
  • 3D model files: sf1004ds-etched.step / sf1004ds-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sf1004ds.step / sf1004ds.glb are the bare package body.

Provenance

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

  • Datasheet: JUXING datasheet (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