MC7805CDTRKG from onsemi, in a TO-252-2(DPAK). 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	Vin	power_in	Unregulated positive input voltage. Recommended input range 7.0 V to 25 V (abs-max 35 V for MC7805C). A 0.33 uF ceramic input capacitor (Cin) is recommended when the regulator is located an appreciable distance from the power supply filter.
2	GND	power_in	Common ground reference shared between input and output. Also serves as the thermal path; the DPAK exposed tab (terminal 4 in the case outline drawing) is internally connected to Pin 2.
3	Vout	power_out	Regulated +5.0 V output (Vo min 4.8 V, typ 5.0 V, max 5.2 V for MC7805C at Tj = 25 C). Output can deliver in excess of 1.0 A with adequate heatsinking; short-circuit current typically 0.6 A at Vin = 35 V. Optional Co (>= 0.1 uF) improves transient response.
4	TAB	power_in	DPAK exposed heatsink tab. Internally connected to Pin 2 (Ground). Solder to a ground copper pour to spread heat; junction-to-case thermal resistance is 5.0 C/W.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	TO-252-2(DPAK)
Category	PMIC
Pins	4

Ordering variants

Same part, different packaging or reel option.

MC7805CDTRKG
MC7805CDTRKGT
MC7805CDTRKGTG
MC7805CDTRKGD2T
MC7805CDTRKGD2TG
MC7805CDTRKGD2TR4
MC7805CDTRKGD2TR4G

CAD (KiCad official)

Symbol: MC7805CDTRKG
Footprint: Package_TO_SOT_SMD:TO-252-2
3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mc7805cdtrkg.step`	119 KB	You want the bare part, or you mark your own boards.
`mc7805cdtrkg-etched.step`	2.0 MB	You want the part with `MC7805CDTRKG` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 514 faces against 83 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: onsemi datasheet (31 pp, sha256 ad3f70896343dcf0, retrieved 2026-08-17, tier: manufacturer)
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