TTP233H-BA6 from Tontek Design Tech, in a SOT-23-6L. 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	Q	output	CMOS push-pull output. Drives IOL = 8 mA typ at VOL = 0.6 V (VDD=3V) and IOH = -4 mA typ at VOH = 2.4 V. Polarity and direct/toggle mode are set by AHLB and TOG pin-straps.
2	VSS	power_in	Negative power supply / system ground reference (0 V).
3	I	bidirectional	Input sensor port. Connects to the external touch electrode; an optional Cs capacitor (1-50 pF, NPO/X7R) to VSS tunes touch sensitivity.
4	AHLB	input	Active-high/low select strap for the Q output. CMOS input with internal ~25 kOhm pull-low resistor (VDD=3V). 0 (default, left open) => Q active high; 1 (tied to VDD) => Q active low.
5	VDD	power_in	Positive supply, 2.4 V - 5.5 V (3 V typ). A 0.1 uF (104) decoupling capacitor to VSS with short traces is required. Internal regulator drops VDD to VREG ~2.3 V for the touch sensor.
6	TOG	input	Output-mode select strap. CMOS input with internal ~25 kOhm pull-low resistor (VDD=3V). 0 (default, left open) => Direct output (Q follows touch); 1 (tied to VDD) => Toggle output (Q flips on each touch).

Key specifications

Parameter	Value
Manufacturer	Tontek Design Tech
Package	SOT-23-6L
Category	Sensor
Pins	6

Ordering variants

Same part, different packaging or reel option.

TTP233H-BA6

CAD (KiCad official)

Symbol: TTP233H-BA6
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ttp233h-ba6.step`	97 KB	You want the bare part, or you mark your own boards.
`ttp233h-ba6-etched.step`	2.0 MB	You want the part with `TTP233H-BA6` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 502 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: Tontek Design Tech datasheet (8 pp, sha256 1149ec10f9916183, 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