INA199A1DCKR from Texas Instruments, in a SOT-363(SC-70-6). 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	REF	input	Reference input. Sets the output voltage when the differential input (IN+ − IN−) is zero. Typically tied to GND for unidirectional sensing or driven to V+/2 for bidirectional sensing. Allowed range: GND-0.3 V to (V+)+0.3 V.
2	GND	power_in	Ground / negative supply return for the device.
3	V+	power_in	Positive supply input, +2.7 V to +26 V. Quiescent current is 100 µA (max). A 0.01 µF to 0.1 µF bypass capacitor to GND is recommended.
4	IN+	input	Non-inverting differential input. Connect to the load side (or high side, depending on topology) of the external current-sense resistor RSHUNT. Common-mode range -0.3 V to +26 V independent of V+.
5	IN-	input	Inverting differential input. Connect to the supply side of the external current-sense resistor RSHUNT. Common-mode range -0.3 V to +26 V independent of V+.
6	OUT	output	Analog voltage output. VOUT = REF + Gain × (IN+ − IN−); Gain = 50 V/V for the A1 variant. Rail-to-rail output, drives loads ≥ 10 kΩ to GND.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-363(SC-70-6)
Category	Op-amp/Cmp
Pins	6

Ordering variants

Same part, different packaging or reel option.

INA199A1DCKR
INA199A1DCKRDCKT
INA199A1DCKRRSWR
INA199A1DCKRRSWT

CAD (KiCad official)

Symbol: INA199A1DCKR
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SOT-363(SC-70-6) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ina199a1dckr.step`	99 KB	You want the bare part, or you mark your own boards.
`ina199a1dckr-etched.step`	2.0 MB	You want the part with `INA199A1DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 513 faces against 117 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: Texas Instruments datasheet (28 pp, sha256 f7222d6189aa059a, 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