TTY020-CA6 from Tontek Design Tech, in a SOT-23-6. 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	VDD	power_in	Positive supply rail. Operating range 2.4 V to 5.5 V; absolute max VSS-0.3 V to VSS+5.5 V. Decouple with ~10 uF to VSS close to the pin.
2	VSS	power_in	Negative supply / system ground reference.
3	OP_P	input	Non-inverting (+) input of the internal amplifier. Typical DC bias is ~0.7 V, determined by the PIR sensor (usually 0.4 V-1.1 V). CMOS input.
4	OP_N	input	Inverting (-) input of the internal amplifier. CMOS input; used with external feedback network (R2, R3, C2, C3) to set gain and pass band.
5	OP_O	output	Analog output of the internal amplifier. Rated source/sink capability ~250 uA at VOP_O = 1.5 V, VDD = 3.3 V. Feeds internally into the PIR dynamic-window comparator (OP_O ± Δ).
6	OUTN	output	PIR detection signal output. Open-drain NMOS, active low, no on-chip diode protection; sink capability ~25 mA at VOL=0.5 V (VDD=3.3 V). Held low during the ~10 s warm-up. Requires external pull-up (recommended 51 KΩ-300 KΩ, e.g. MCU internal pull-up). Output has 8 ms debounce.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

TTY020-CA6

CAD (KiCad official)

Symbol: TTY020-CA6
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tty020-ca6.step`	97 KB	You want the bare part, or you mark your own boards.
`tty020-ca6-etched.step`	1.8 MB	You want the part with `TTY020-CA6` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 434 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 (9 pp, sha256 9b483f5d17715f56, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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