component
MCP4251-503E
Public Made by Adomby adom
Microchip Tech Digital Potentiometers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228
{
"slug": "mcp4251-503e",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Digital Potentiometers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"adc-dac-data conversion",
"mcp4251-503e",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"mcp4251-503e.kicad_sym",
"mcp4251-503e.kicad_mod",
"mcp4251-503e.glb",
"mcp4251-503e.step",
"mcp4251-503e.lbr",
"docs/hero.png",
"docs/mcp4251-503e-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mcp4251-503e-hero.glb",
"mcp4251-503e-hero.overlay.json",
"mcp4251-503e-etched.glb"
],
"component": {
"mpn": "MCP4251-503E",
"manufacturer": "Microchip Tech",
"package": "SOIC-14",
"pin_count": 14,
"category": "ADC/DAC/Data Conversion",
"subcategory": "Digital Potentiometers",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/331aa476e0e748ac693220606c3bfb64.pdf",
"parts": {
"symbol": "mcp4251-503e.kicad_sym",
"footprint": "mcp4251-503e.kicad_mod",
"model_3d": "mcp4251-503e-hero.glb",
"model_3d_plain": "mcp4251-503e-etched.glb",
"model_3d_step": "mcp4251-503e-etched.step",
"model_3d_step_plain": "mcp4251-503e.step",
"lbr": "mcp4251-503e.lbr"
},
"distributor_links": {
"lcsc": "C640899"
},
"distributor_check": {
"checked_at": "2026-11-05T18:32:58Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "CS",
"type": "input",
"description": "SPI chip select input; forcing CS to VIL enables serial commands and forcing it to VIHH enables high-voltage serial commands, and the pin is high-voltage tolerant with a Schmitt trigger input."
},
{
"number": "2",
"name": "SCK",
"type": "input",
"description": "SPI serial clock input, high-voltage tolerant with a Schmitt trigger input."
},
{
"number": "3",
"name": "SDI",
"type": "input",
"description": "SPI serial data input connected to the host controller SDO pin, high-voltage tolerant with a Schmitt trigger input."
},
{
"number": "4",
"name": "VSS",
"type": "power_in",
"description": "Device ground reference; the positive supply VDD is specified relative to this pin."
},
{
"number": "5",
"name": "P1B",
"type": "passive",
"description": "Potentiometer 1 terminal B, connected to the zero-scale wiper value (0x00); voltage on this terminal must be between VSS and VDD."
},
{
"number": "6",
"name": "P1W",
"type": "passive",
"description": "Potentiometer 1 wiper terminal, which may carry positive or negative current; voltage on this terminal must be between VSS and VDD."
},
{
"number": "7",
"name": "P1A",
"type": "passive",
"description": "Potentiometer 1 terminal A, connected to the full-scale wiper value; voltage on this terminal must be between VSS and VDD."
},
{
"number": "8",
"name": "P0A",
"type": "passive",
"description": "Potentiometer 0 terminal A, connected to the full-scale wiper value; voltage on this terminal must be between VSS and VDD."
},
{
"number": "9",
"name": "P0W",
"type": "passive",
"description": "Potentiometer 0 wiper terminal, which may carry positive or negative current; voltage on this terminal must be between VSS and VDD."
},
{
"number": "10",
"name": "P0B",
"type": "passive",
"description": "Potentiometer 0 terminal B, connected to the zero-scale wiper value (0x00); voltage on this terminal must be between VSS and VDD."
},
{
"number": "11",
"name": "NC",
"type": "unconnected",
"description": "No internal connection; should be connected to VDD or VSS to reduce possible noise coupling."
},
{
"number": "12",
"name": "SHDN",
"type": "input",
"description": "Hardware shutdown input that forces the resistor network terminals into the hardware shutdown state; high-voltage tolerant with a Schmitt trigger input."
},
{
"number": "13",
"name": "SDO",
"type": "output",
"description": "SPI serial data output connected to the host controller SDI pin, used to read device registers or monitor the command error bit; it is an open-drain output using the internal smart pull-up, so the output rate is limited by the pull-up unless an external pull-up is added."
},
{
"number": "14",
"name": "VDD",
"type": "power_in",
"description": "Positive power supply input relative to VSS; electrical performance may not meet data sheet specifications while VDD is below 2.7V."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The pinout is taken from the 14-lead column of Table 3-1 (page 31), which is the dual potentiometer ; The provided pages show the 14-lead SOIC marking as '/SL' (for example MCP4251 502E/SL), but no orde; Pins 1-14 are all the 14-lead SOIC pins and none are missing. The EP (exposed pad) pin is not part o"
],
"pages_sent": 19,
"cost_usd": 0.0681,
"at": "2026-11-05T18:32:46"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/331aa476e0e748ac693220606c3bfb64.pdf",
"pages": 88,
"sha256": "6c60b083b2ef0a92",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 14,
"described": 14,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "mcp4251-503e.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.0,
8.7,
1.75
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
"checked": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mcp4251-503e-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.0,
8.7,
1.75
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "a4df29eb86817f1b5770d26522fb3c3ef7a2f4059e5daae5518fb447304e3522",
"checked": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}