component

DK124

Public Made by Adom

by adom

Shenzhen DongKe Semicon AC-DC Controllers and Regulators, DIP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs dk124: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (fab-chamfer, synthesised, bottom-right) · Ray
dk124-etched.fit.json dk124: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
dk124-etched.glb dk124: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
dk124-etched.step dk124: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
dk124.glb Publish 0.1.0 · Ray
dk124.kicad_mod Publish 0.1.0 · Ray
dk124.kicad_sym Publish 0.1.0 · Ray
dk124.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
dk124.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (fab-chamfer, synthesised, bottom-right) · Ray
page.json dk124: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md dk124: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

DK124

Shenzhen DongKe Semicon · AC-DC Controllers and Regulators · DIP-8

DK124 from Shenzhen DongKe Semicon, in a DIP-8. 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 GND power_in Chip ground reference. Tied together with pin 2 to form the IC ground return.
2 GND power_in Chip ground reference. Tied together with pin 1 to form the IC ground return.
3 FB input Feedback control input. Sinks the optocoupler current (internal 40uA pull-up) to set the cycle-by-cycle peak current limit. FB=1.5V-2.5V linearly scales peak current; <1.33V triggers short-circuit/overload, >2.5V drops PWM to 22kHz, >2.8V enters burst standby.
4 VCC power_in Chip supply pin. Regulated by the internal patented self-supply circuit to ~5V (start 5.05V typ, restart 3.6V typ, OVP 6.55V typ). External VCC storage capacitor is charged from OC via the internal high-voltage current source. Absolute max 8V.
5 OC output Drain of the internal 700V power MOSFET. Pins 5,6,7,8 are internally tied together for current-handling and thermal dissipation and connect to the transformer primary. Peak switch current limited to 1.3A typ; OC OVP trips at 600V typ.
6 OC output Drain of the internal 700V power MOSFET (paralleled with pins 5,7,8).
7 OC output Drain of the internal 700V power MOSFET (paralleled with pins 5,6,8).
8 OC output Drain of the internal 700V power MOSFET (paralleled with pins 5,6,7).

Key specifications

Parameter Value
Manufacturer Shenzhen DongKe Semicon
Package DIP-8
Category PMIC
Pins 8

CAD (KiCad official)

  • Symbol: DK124
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: dk124-etched.step / dk124-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dk124.step / dk124.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
dk124.step 271 KB You want the bare part, or you mark your own boards.
dk124-etched.step 1.1 MB You want the part with DK124 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 290 faces against 148 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Shenzhen DongKe Semicon datasheet (7 pp, sha256 685d94645ea5e49a, 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