component
π140E31S
Public Made by Adomby adom
2Pai Semi Digital Isolators, SSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"manufacturer": "2Pai Semi",
"package": "SSOP-16",
"pin_count": 16,
"category": "Signal Isolation Devices",
"subcategory": "Digital Isolators",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/85dc2b070754ee6019621d2a660df862.pdf",
"parts": {
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"lbr": "140e31s.lbr"
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"distributor_links": {
"lcsc": "C6807866"
},
"distributor_check": {
"checked_at": "2026-10-26T23:34:59Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
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"mouser": {
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"pins": [
{
"number": "1",
"name": "VDD1",
"type": "power_in",
"description": "Supply voltage for isolator side 1, specified at 3 V to 5.5 V in the recommended operating conditions."
},
{
"number": "2",
"name": "GND1",
"type": "power_in",
"description": "Ground 1, the ground reference for isolator side 1."
},
{
"number": "3",
"name": "VIA",
"type": "input",
"description": "Logic input A on side 1; a low input drives VOA low, and an open input gives the default output state set by the fail-safe option."
},
{
"number": "4",
"name": "VIB",
"type": "input",
"description": "Logic input B on side 1; a low input drives VOB low, and an open input gives the default output state set by the fail-safe option."
},
{
"number": "5",
"name": "VIC",
"type": "input",
"description": "Logic input C on side 1; a low input drives VOC low, and an open input gives the default output state set by the fail-safe option."
},
{
"number": "6",
"name": "VID",
"type": "input",
"description": "Logic input D on side 1; a low input drives VOD low, and an open input gives the default output state set by the fail-safe option."
},
{
"number": "7",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "8",
"name": "GND1",
"type": "power_in",
"description": "Ground 1, the ground reference for isolator side 1."
},
{
"number": "9",
"name": "GND2",
"type": "power_in",
"description": "Ground 2, the ground reference for isolator side 2."
},
{
"number": "10",
"name": "NC",
"type": "unconnected",
"description": "No connect for π140E3X; this pin is EN2 (output enable, outputs enabled when high or open) only on the π140E6X variant."
},
{
"number": "11",
"name": "VOD",
"type": "output",
"description": "Logic output D on side 2, following input VID after the isolation barrier."
},
{
"number": "12",
"name": "VOC",
"type": "output",
"description": "Logic output C on side 2, following input VIC after the isolation barrier."
},
{
"number": "13",
"name": "VOB",
"type": "output",
"description": "Logic output B on side 2, following input VIB after the isolation barrier."
},
{
"number": "14",
"name": "VOA",
"type": "output",
"description": "Logic output A on side 2, following input VIA after the isolation barrier."
},
{
"number": "15",
"name": "GND2",
"type": "power_in",
"description": "Ground 2, the ground reference for isolator side 2."
},
{
"number": "16",
"name": "VDD2",
"type": "power_in",
"description": "Supply voltage for isolator side 2, specified at 3 V to 5.5 V in the recommended operating conditions."
}
],
"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 16-Lead SSOP pin diagram (Figure 3 / Figure 4 / Figure 5) is not readable in the extracted text.; Pin 10 is NC for the 3-kV 'E3x' variant and EN2 only for the 5-kV 'E6x' variant. π140E31S is an E3x "
],
"pages_sent": 10,
"cost_usd": 0.0241,
"at": "2026-10-26T23:34:26"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/85dc2b070754ee6019621d2a660df862.pdf",
"pages": 20,
"sha256": "5e3887ddbec8e982",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 16,
"described": 16,
"cites_pages": true,
"refuses_to_fabricate": true
}
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"sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",
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"metadata": {
"specs": {
"Manufacturer": "2Pai Semi",
"Package": "SSOP-16",
"Category": "Signal Isolation Devices",
"Pins": "16"
},
"appearance": {
"housing": {
"quote": "In accordance with DIN V VDE V 0884-11, each π140E3x/π141E3x/π142E3x is proof tested by applying an insulation test voltage ≥ 848 V peak for 1 sec (partial discharge detection limit = 5 pC); each π140",
"page": 10,
"doc": "ds.pdf",
"material": "pC"
},
"version": 1,
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"discovery_pitch": "π140E31S (2Pai Semi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
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"email": "[email protected]"
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