L7812CD2T-TR
Public Unreviewedby Ray
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-2. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownL7812CD2T-TR
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-2
L7812CD2T-TR from STMicroelectronics, 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 | INPUT | power_in | Unregulated DC input voltage (V_I). Must be at least ~2 V above V_O (typ. 14.5-35 V for the 12 V variant); absolute maximum 35 V. Bypass to GND with a 0.33 uF ceramic capacitor placed close to the pin. |
| 2 | GROUND | power_in | Common ground reference for the regulator. Electrically connected to the package tab on D2PAK; the tab must be soldered to a ground copper pour that also serves as the primary heat-sinking path. |
| 3 | OUTPUT | power_out | Regulated +12 V output (V_O), 2% tolerance for A-grade, 4% for standard C-grade. Deliverable current up to 1.5 A with adequate heat sinking. Bypass to GND with a 0.1 uF ceramic capacitor for stability and transient response. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-263-2 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
L7812CD2T-TRL7812CD2T-TRACD2T-TRL7812CD2T-TRCVL7812CD2T-TRACVL7812CD2T-TRCPL7812CD2T-TRACPL7812CD2T-TRCDT-TRL7812CD2T-TRACDT-TR
CAD (KiCad official)
- Symbol:
L7812CD2T-TR - 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 |
|---|---|---|
l7812cd2t-tr.step |
108 KB | You want the bare part, or you mark your own boards. |
l7812cd2t-tr-etched.step |
1.8 MB | You want the part with L7812CD2T-TR already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 463 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: STMicroelectronics datasheet (58 pp, sha256
32a4d2208c478c95, 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).