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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	m1601b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
viewers	pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray	1mo ago
m1601b-etched.fit.json	m1601b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
m1601b-etched.glb	m1601b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
m1601b-etched.step	m1601b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
m1601b.glb	Publish 0.1.0 · Ray	1mo ago
m1601b.kicad_mod	Publish 0.1.0 · Ray	1mo ago
m1601b.kicad_sym	Publish 0.1.0 · Ray	1mo ago
m1601b.lbr	rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 3 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray	1mo ago
m1601b.step	Publish 0.1.0 · Ray	1mo ago
package.json	Publish 0.2.0 · Ray	1mo ago
pads.json	pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray	1mo ago
page.json	Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray	7d ago
README.md	m1601b: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray	17d ago

M1601B

Mysentech · Temperature and Humidity Sensor · SOT-23

M1601B from Mysentech, in a SOT-23. 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 voltage input. Operating range 1.8 V to 5.5 V (absolute max −0.3 V to 6 V). Typical supply current is 0.1 µA idle (single-shot mode) and 4.8 µA average when measuring at 1 sample/s.
2	DQ	bidirectional	1-Wire single-bus data I/O. Open-drain / tri-state; requires an external pull-up resistor to VDD (typ. 4.7 kΩ, range 1 kΩ to 10 kΩ; 1 kΩ recommended for long cables or multi-drop). Carries all ROM, function, temperature-read, and alarm-threshold traffic between the host and the sensor.
3	GND	power_in	Ground reference (0 V) for the supply and the 1-Wire signal.

Key specifications

Parameter	Value
Manufacturer	Mysentech
Package	SOT-23
Category	Sensor
Pins	3

CAD (KiCad official)

Symbol: M1601B
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)
3D model files: m1601b-etched.step / m1601b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); m1601b.step / m1601b.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`m1601b.step`	59 KB	You want the bare part, or you mark your own boards.
`m1601b-etched.step`	1.2 MB	You want the part with `M1601B` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 296 faces against 69 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: Mysentech datasheet (28 pp, sha256 aeda39d8ec9e0fa0, 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