MDC02 from Mysentech, in a SOP-8. 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	C1_IN	input	Capacitance channel 1 analog input. Connects to one plate of the C1 sense capacitor; the driven excitation is applied on C1_OUT and the returned charge is integrated here.
2	C1_OUT	output	Capacitance channel 1 analog output/drive. Applies the excitation waveform to the C1 sense capacitor; forms a differential pair with C1_IN.
3	C2_IN	input	Capacitance channel 2 analog input. Connects to one plate of the C2 sense capacitor; paired with C2_OUT.
4	C2_OUT	output	Capacitance channel 2 analog output/drive. Applies the excitation waveform to the C2 sense capacitor; forms a differential pair with C2_IN.
5	DQ	bidirectional	1-Wire single-bus data line. Open-drain I/O; requires a ~10 kΩ pull-up to VDD. Carries reset/presence, ROM commands, and function commands per the on-chip 1-Wire protocol.
6	ALERT	output	Alarm/alert indication output. Asserts when a capacitance measurement crosses a programmed threshold. Drive strength IOH ≈ 1 mA at VDD = 5 V.
7	VDD	power_in	Supply voltage input. Operating range 2.0 V to 5.5 V (typ 3.3 V); average supply current ≈5.3 µA per capacitance channel measurement. Absolute maximum −0.3 V to +6 V.
8	VSS	power_in	Ground / power return. The exposed thermal pad (if present) must not be connected to any non-zero potential.

Key specifications

Parameter	Value
Manufacturer	Mysentech
Package	SOP-8
Category	Sensor
Pins	8

Ordering variants

Same part, different packaging or reel option.

MDC02
MDC04

CAD (KiCad official)

Symbol: MDC02
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Mysentech datasheet (39 pp, sha256 6f34944395558983, 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