MC7824CD2TR4G from onsemi, in a TO-263-2. 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 Vin range is approximately Vout + 2.0 V up to 35 Vdc (40 Vdc absolute max for the 24 V version). A 0.33 uF input capacitor is recommended if the regulator is far from the bulk supply filter.
2	GND	power_in	Common ground reference shared between the input and output. Also acts as the return path for the quiescent current (typ. 3.4 mA). The D2PAK heatsink tab is internally connected to this pin.
3	Vout	power_out	Regulated +24 V fixed output. Capable of >1.0 A load current with adequate heatsinking; peak output current typically 2.2 A, short-circuit current limit typically 0.2 A at Vin = 35 V. Output capacitor Co is not required for stability but improves transient response (values < 0.1 uF may cause instability).

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	TO-263-2
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

MC7824CD2TR4G
MC7824CD2TR4GT
MC7824CD2TR4GTG
MC7824CD2TR4GDT
MC7824CD2TR4GDTRK

CAD (KiCad official)

Symbol: MC7824CD2TR4G
Footprint: Package_TO_SOT_SMD:TO-263-2
3D model: TO-263-2 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mc7824cd2tr4g.step`	108 KB	You want the bare part, or you mark your own boards.
`mc7824cd2tr4g-etched.step`	2.1 MB	You want the part with `MC7824CD2TR4G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 541 faces against 79 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