SMD1206B050TF from Brightking, in a 1206. 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	1	passive	Terminal 1 of the PPTC resettable fuse. Non-polar; connect in series with the load. Initial resistance 0.15Ω min, 0.70Ω max one hour after trip/reflow.
2	2	passive	Terminal 2 of the PPTC resettable fuse. Non-polar; connect in series with the load. Rated Vmax 6.0Vdc, Imax 100A.

Key specifications

Parameter	Value
Manufacturer	Brightking
Package	1206
Category	Sensor
Pins	2

Ordering variants

Same part, different packaging or reel option.

SMD1206B050TF
SMD1206B050TF/15
SMD1206B050TF/24

CAD (KiCad official)

Symbol: SMD1206B050TF
Footprint: Resistor_SMD:R_1206_3216Metric
3D model: 1206 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`smd1206b050tf.step`	39 KB	You want the bare part, or you mark your own boards.
`smd1206b050tf-etched.step`	2.4 MB	You want the part with `SMD1206B050TF` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 573 faces against 26 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: Brightking datasheet (9 pp, sha256 6384ee169130d37b, 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