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AF2041

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by Ray

Sam wing Touch Sensors, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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AF2041

Sam wing · Touch Sensors · SOT-23-6

AF2041 from Sam wing, 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 OUT output Touch key sense output. Drives the detection result; polarity (active-high or active-low) is selected by VGM, and behavior (direct/synchronous vs. latched/hold) is selected by TBM. Sink capability 20 mA at Vol=0.3·VDD; source capability 10 mA at Voh=0.7·VDD.
2 GND power_in Ground / negative supply reference.
3 KEY input Capacitive touch sense input. Connect through a 1 kΩ series resistor (R1, recommended 0-5 kΩ) to the touch pad. An optional CSEL capacitor (0-50 pF) to GND adjusts sensitivity; larger CSEL lowers sensitivity. Minimum detectable delta capacitance 0.2 pF.
4 VGM input Output polarity select. VGM tied high → OUT is active-low (idle high, asserted low on touch). VGM tied low (or floating) → OUT is active-high (idle low, asserted high on touch). Default state assumed 0 (active-high).
5 VDD power_in Positive supply input, 2.3 V to 5.5 V (typ 3 V). Standby current ~2.5 µA at 3 V. Decouple with a 100 nF (104) capacitor placed as close to VDD as possible. Absolute max supply -0.3 V to +5.5 V.
6 TBM input Hold/sync mode select. TBM tied high → OUT operates in hold (toggle/latched) mode. TBM tied low → OUT operates in synchronous (direct) mode; in this mode an internal 64 s timeout returns the output to idle. Default state assumed 0 (synchronous).

Key specifications

Parameter Value
Manufacturer Sam wing
Package SOT-23-6
Category Sensor
Pins 6

CAD (KiCad official)

  • Symbol: AF2041
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Sam wing datasheet (8 pp, sha256 d68306b735dc5474, 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