component
SM6T27A
Public Made by Adomby adom
STMicroelectronics TVS, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376
{
"schema_version": 1,
"type": "component",
"slug": "sm6t27a",
"title": "SM6T27A",
"brief": "STMicroelectronics TVS, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"circuit protection",
"sm6t27a",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "SM6T27A",
"manufacturer": "STMicroelectronics",
"package": "SMB(DO-214AA)",
"pin_count": 2,
"category": "Circuit Protection",
"subcategory": "TVS",
"datasheet": "https://www.st.com/resource/en/datasheet/sm6t27a.pdf",
"parts": {
"symbol": "sm6t27a.kicad_sym",
"footprint": "sm6t27a.kicad_mod",
"model_3d": "sm6t27a-hero.glb",
"model_3d_plain": "sm6t27a-etched.glb",
"model_3d_step": "sm6t27a-etched.step",
"model_3d_step_plain": "sm6t27a.step",
"lbr": "sm6t27a.lbr"
},
"distributor_links": {
"lcsc": "C133693",
"digikey": "497-7435-2-ND",
"mouser": "511-SM6T27A"
},
"distributor_check": {
"checked_at": "2026-10-22T12:09:18Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-7435-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "511-SM6T27A",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "K",
"type": "passive",
"description": "Cathode of the unidirectional SM6T27A, marked by the cathode band; stand-off voltage VRM 23.1 V, breakdown VBR 25.7 V min to 28.4 V max at 1 mA."
},
{
"number": "2",
"name": "A",
"type": "passive",
"description": "Anode of the unidirectional SM6T27A; the device clamps at VCL 37.5 V max at 16 A (10/1000 µs)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet shows only K and A symbols and a cathode band, with no pin numbers printed. Numbers 1 ; Table 3 gives VBR as 25.7 V min, 27 V typ and 28.4 V max, and VRM as 23.1 V, for SM6T27A/CA. Page 1 "
],
"pages_sent": 10,
"cost_usd": 0.0717,
"at": "2026-10-22T12:08:32"
},
"datasheet": {
"url": "https://www.st.com/resource/en/datasheet/sm6t27a.pdf",
"pages": 10,
"sha256": "9340708960a8d7f6",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 2,
"described": 2,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "sm6t27a.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.3,
3.55,
2.15
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "sm6t27a-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.3,
3.55,
2.15
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "dee6904ce180f29a0002d89b1e88dd9c81e1dcabafc8992bc889d424c2b8bc15",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "STMicroelectronics",
"Package": "SMB(DO-214AA)",
"Category": "Circuit Protection",
"Pins": "2"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "9340708960a8d7f6ed064af36a872de6d260e261e5543be5fc4ee73e95268ca8",
"rows": [
{
"name": "Stand-off voltage",
"symbol": "VRM",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 23.1,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Breakdown voltage",
"symbol": "VBR",
"kind": "electrical",
"unit": "V",
"min": 25.7,
"typ": 27,
"max": 28.4,
"conditions": "@ IR = 1 mA, pulse test tp < 50 ms",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Leakage current at 25 °C",
"symbol": "IRM",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 0.2,
"conditions": "@ VRM, 25 °C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Leakage current at 85 °C",
"symbol": "IRM",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 1,
"conditions": "@ VRM, 85 °C",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Clamping voltage 10/1000 µs",
"symbol": "VCL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 37.5,
"conditions": "@ IPP = 16 A, 10/1000 µs",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Dynamic resistance 10/1000 µs",
"symbol": "RD",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": null,
"max": 0.569,
"conditions": "10/1000 µs",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Clamping voltage 8/20 µs",
"symbol": "VCL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 48.3,
"conditions": "@ IPP = 83 A, 8/20 µs",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Dynamic resistance 8/20 µs",
"symbol": "RD",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": null,
"max": 0.24,
"conditions": "8/20 µs",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Voltage temperature coefficient",
"symbol": "αT",
"kind": "temperature_coefficient",
"unit": "10-4/°C",
"min": null,
"typ": null,
"max": 9.6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Peak pulse power dissipation",
"symbol": "PPP",
"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 600,
"conditions": "Tj initial = Tamb, 10/1000 µs",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating junction temperature range",
"symbol": "Tj",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum lead temperature for soldering",
"symbol": "TL",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 260,
"conditions": "during 10 s",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal resistance junction to leads",
"symbol": "Rth(j-l)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal resistance junction to ambient",
"symbol": "Rth(j-a)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": null,
"max": 100,
"conditions": "on printed circuit on recommended pad layout",
"source_page": 2,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"sm6t27a"
],
"discovery_pitch": "SM6T27A (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"sm6t27a.kicad_sym",
"sm6t27a.kicad_mod",
"sm6t27a.glb",
"sm6t27a.step",
"sm6t27a.lbr",
"docs/hero.png",
"docs/sm6t27a-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"sm6t27a-hero.glb",
"sm6t27a-hero.overlay.json",
"sm6t27a-etched.glb"
],
"visibility": {
"public": true
}
}