component
UMW SS310B
Public Made by Adomby adom
UMW Schottky Barrier Diodes (SBD), SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313
{
"schema_version": 1,
"type": "component",
"slug": "umw-ss310b",
"title": "UMW SS310B",
"brief": "UMW Schottky Barrier Diodes (SBD), SMB. 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",
"diodes",
"umw ss310b",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "UMW SS310B",
"manufacturer": "UMW",
"package": "SMB",
"pin_count": 2,
"category": "Diodes",
"subcategory": "Schottky Barrier Diodes (SBD)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/96f8f317c1bb985a3fbddea0f9468494.pdf",
"parts": {
"symbol": "umw-ss310b.kicad_sym",
"footprint": "umw-ss310b.kicad_mod",
"model_3d": "umw-ss310b-hero.glb",
"model_3d_plain": "umw-ss310b-etched.glb",
"model_3d_step": "umw-ss310b-etched.step",
"model_3d_step_plain": "umw-ss310b.step",
"lbr": "umw-ss310b.lbr"
},
"distributor_links": {
"lcsc": "C2988640"
},
"distributor_check": {
"checked_at": "2026-10-21T05:26:54Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "Cathode",
"type": "passive",
"description": "Cathode end of the SMB package, marked by the color band on the body; the datasheet gives the SS310B ratings as 100 V repetitive peak reverse voltage and 3.0 A average forward rectified current."
},
{
"number": "2",
"name": "A",
"type": "passive",
"description": "Anode terminal of the SMB package; the SS310B is rated for a 0.75 to 0.85 V instantaneous forward voltage at 3.0 A and a 0.2 mA maximum reverse current at 25°C rated DC blocking voltage (table values for the device)."
}
],
"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 datasheet labels the SMB outline 'Pin1 Pin2' and states that the color band denotes the cathode ; The pin 2 description combines the forward-voltage and reverse-current table values for the whole SS"
],
"pages_sent": 6,
"cost_usd": 0.0186,
"at": "2026-10-21T05:22:20"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/96f8f317c1bb985a3fbddea0f9468494.pdf",
"pages": 6,
"sha256": "6e9e8ddece4da02b",
"source_tier": "lcsc"
},
"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": "umw-ss310b.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": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "umw-ss310b-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": "cedf29dac1d55d0ad8496afb63c654a962bbff99280f7d67dace732510b9cd64",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "UMW",
"Package": "SMB",
"Category": "Diodes",
"Pins": "2"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "6e9e8ddece4da02b00c09ecba138afca5fce83443ca3d9c24a584b1eb0239381",
"rows": [
{
"name": "Maximum repetitive peak reverse voltage",
"symbol": "VRRM",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum RMS voltage",
"symbol": "VRMS",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 71,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum DC blocking voltage",
"symbol": "VDC",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum average forward rectified current",
"symbol": "I(AV)",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 3,
"conditions": "0.375\"(9.5mm) lead length (See Fig.1)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Peak forward surge current",
"symbol": "IFSM",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 80,
"conditions": "8.3ms single half sine-wave superimposed on rated load (JEDEC method)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum instantaneous forward voltage",
"symbol": "VF",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.85,
"conditions": "at 3.0 A (Note 1)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Typical thermal resistance, junction to ambient",
"symbol": "RθJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": null,
"max": 55,
"conditions": "Note 2: P.C.B. mounted 0.55 X 0.55\"(14 X 14mm) copper pad areas",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Typical thermal resistance, junction to lead",
"symbol": "RθJL",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": null,
"max": 17,
"conditions": "Note 2: P.C.B. mounted 0.55 X 0.55\"(14 X 14mm) copper pad areas",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Junction temperature range",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"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"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"umw ss310b"
],
"discovery_pitch": "UMW SS310B (UMW) 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",
"umw-ss310b.kicad_sym",
"umw-ss310b.kicad_mod",
"umw-ss310b.glb",
"umw-ss310b.step",
"umw-ss310b.lbr",
"docs/hero.png",
"docs/umw-ss310b-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"umw-ss310b-hero.glb",
"umw-ss310b-hero.overlay.json",
"umw-ss310b-etched.glb"
],
"visibility": {
"public": true
}
}