MCP4017T-502E from Microchip Tech, in a SC-70-6. 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 voltage. 1.8 V to 5.5 V for device operation; analog characteristics specified 2.7 V to 5.5 V. Must be decoupled to VSS.
2	VSS	power_in	Device ground / negative supply reference.
3	SCL	input	I2C serial clock input. Schmitt-trigger input; supports 100 kHz standard mode and 400 kHz fast mode. Requires external pull-up (voltage on SCL may be up to 12.5 V absolute max relative to VSS).
4	SDA	bidirectional	I2C serial data line. Open-drain bidirectional; VOL <= 0.4 V at IOL = 3 mA (VDD >= 2.0 V). Requires external pull-up (up to 12.5 V absolute max relative to VSS).
5	B	passive	Resistor network terminal B. Analog terminal of the internal resistor network; voltage must remain within VSS to VDD. Maximum terminal current 2.5 mA. In the rheostat MCP4017 the B terminal is one end of the RAB string.
6	A/W	passive	Resistor network terminal A tied to wiper W (rheostat configuration). Voltage must remain within VSS to VDD; maximum terminal current 2.5 mA. Wiper resistance ~100 Ohm typical (170 Ohm max at VDD = 5.5 V, code = 00h).

Key specifications

Parameter	Value
Manufacturer	Microchip Tech
Package	SC-70-6
Category	Data Acquisition
Pins	6

Ordering variants

Same part, different packaging or reel option.

MCP4017T-502E/LT
MCP4017T-103E/LT
MCP4017T-503E/LT
MCP4017T-104E/LT
MCP4018
MCP4019

CAD (KiCad official)

Symbol: MCP4017T-502E
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Microchip Tech datasheet (66 pp, sha256 3e1c6afc8ec340c1, 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