B57421V2222J062 from TDK, in a 0805. 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	Thermistor terminal 1 (nickel barrier SMD termination). Non-polarized; interchangeable with pin 2. Resistance to pin 2 is 2.2 kΩ ±5% at 25 °C, decreasing with temperature per NTC R/T curve 8502 (B25/100 = 4000 K).
2	2	passive	Thermistor terminal 2 (nickel barrier SMD termination). Non-polarized; interchangeable with pin 1. Max power dissipation 210 mW at 25 °C on PCB; dissipation factor ~3.5 mW/K.

Key specifications

Parameter	Value
Manufacturer	TDK
Package	0805
Category	Sensor
Pins	2

Ordering variants

B57421V2222J062

CAD (KiCad official)

Symbol: B57421V2222J062
Footprint: Resistor_SMD:R_0805_2012Metric
3D model: 0805 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`b57421v2222j062.step`	40 KB	You want the bare part, or you mark your own boards.
`b57421v2222j062-etched.step`	2.6 MB	You want the part with `B57421V2222J062` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 623 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: TDK datasheet (27 pp, sha256 8e724df0e093127a, 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