component
HT431ARZ
Public Made by Adomby adom
HTCSEMI Voltage Reference, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"type": "component",
"slug": "ht431arz",
"title": "HT431ARZ",
"brief": "HTCSEMI Voltage Reference, SOP-8. 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",
"power management (pmic)",
"ht431arz",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "HT431ARZ",
"manufacturer": "HTCSEMI",
"package": "SOP-8",
"pin_count": 8,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Reference",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603102331898773504",
"parts": {
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"footprint": "ht431arz.kicad_mod",
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"lbr": "ht431arz.lbr"
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"distributor_links": {
"lcsc": "C5336210"
},
"distributor_check": {
"checked_at": "2026-10-18T22:51:27Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "CATHODE",
"type": "passive",
"description": "Cathode (K) of the shunt regulator; output voltage settable from Vref (about 2.5 V) to 40 V, with recommended cathode current 0.5 mA to 100 mA and VKA absolute max 44 V."
},
{
"number": "2",
"name": "ANODE",
"type": "passive",
"description": "Anode (A) of the shunt regulator, connected to the most negative potential/ground; pins 2, 3, 6 and 7 are all Anode."
},
{
"number": "3",
"name": "ANODE",
"type": "passive",
"description": "Anode (A) of the shunt regulator, connected to the most negative potential/ground; pins 2, 3, 6 and 7 are all Anode."
},
{
"number": "4",
"name": "NC",
"type": "unconnected",
"description": "No internal connection (N/C)."
},
{
"number": "5",
"name": "NC",
"type": "unconnected",
"description": "No internal connection (N/C)."
},
{
"number": "6",
"name": "ANODE",
"type": "passive",
"description": "Anode (A) of the shunt regulator, connected to the most negative potential/ground; pins 2, 3, 6 and 7 are all Anode."
},
{
"number": "7",
"name": "ANODE",
"type": "passive",
"description": "Anode (A) of the shunt regulator, connected to the most negative potential/ground; pins 2, 3, 6 and 7 are all Anode."
},
{
"number": "8",
"name": "REFERENCE",
"type": "input",
"description": "Reference (R) input that sets the output voltage via an external resistor divider; Vref is 2.495 V typ and the input current range is 0.05 to 10 mA max."
}
],
"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+vision",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet does not say which package the suffix 'RZ' in HT431ARZ means. I assumed SOP-8 from the; Pins 2, 3, 6 and 7 are all Anode, and pins 4 and 5 are N/C. This comes from the top-view SOP-8 diagr; I typed Cathode, Anode and Reference as passive, since KiCad has no shunt-regulator class. Reference",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 6,
"cost_usd": 0.2092,
"at": "2026-10-18T22:49:30"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603102331898773504",
"pages": 6,
"sha256": "0717f21d1e892efe",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 8,
"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
},
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"origin": "footprint origin = pad-pattern centre",
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"zmin_mm": 0,
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"sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
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},
"metadata": {
"specs": {
"Manufacturer": "HTCSEMI",
"Package": "SOP-8",
"Category": "Power Management (PMIC)",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "0717f21d1e892efe3127d5ae8cf26897c15a8d2c467131437a852136abf701e9",
"rows": [
{
"name": "Reference Input Voltage",
"symbol": "VREF",
"kind": "tolerance",
"unit": "V",
"min": 2.482,
"typ": 2.495,
"max": 2.508,
"conditions": "VKA = VREF, IK = 10mA (HT431A 0.5% column)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Deviation of Reference Input Voltage Over Full Temperature Range",
"symbol": "VREF(dev)",
"kind": "tolerance",
"unit": "MV",
"min": null,
"typ": 3,
"max": 17,
"conditions": "Tmin Ta Tmax",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Ratio of Change in Reference Input Voltage to Change in Cathode Voltage",
"symbol": "VREF/VKA",
"kind": "voltage_coefficient",
"unit": "mV/V",
"min": null,
"typ": -1.4,
"max": -2.7,
"conditions": "VKA = 10V-VREF",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Ratio of Change in Reference Input Voltage to Change in Cathode Voltage",
"symbol": "VREF/VKA",
"kind": "voltage_coefficient",
"unit": "mV/V",
"min": null,
"typ": -1,
"max": -2,
"conditions": "VKA = 36V- 10V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Reference Input Current",
"symbol": "IREF",
"kind": "electrical",
"unit": "㎂",
"min": null,
"typ": 1.8,
"max": 4,
"conditions": "R1 = 10K, R2 = (R2 value not legible in extracted text)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Deviation of Reference Input Current Over Full Temperature Range",
"symbol": "IREF(dev)",
"kind": "electrical",
"unit": "㎂",
"min": null,
"typ": 0.4,
"max": 1.2,
"conditions": "R1 = 10K, R2 = (R2 value not legible in extracted text)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Minimum Cathode Current for Regulation",
"symbol": "IK(min)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.25,
"max": 0.5,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Off-State Cathode Current",
"symbol": "IK(off)",
"kind": "electrical",
"unit": "㎂",
"min": null,
"typ": 0.26,
"max": 0.9,
"conditions": "VKA = 40 V, VREF = 0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Dynamic Impedance",
"symbol": "ZKA",
"kind": "electrical",
"unit": "",
"min": null,
"typ": 0.22,
"max": 0.5,
"conditions": "IK = 10mA to 100 mA, f 1.0KHz",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Cathode Voltage",
"symbol": "VKA",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 40,
"conditions": "VREF",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Cathode Current",
"symbol": "IK",
"kind": "recommended_operating",
"unit": "mA",
"min": 0.5,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Cathode Voltage",
"symbol": "VKA",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 44,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Cathode Current Range (Continuous)",
"symbol": "IK",
"kind": "absolute_maximum",
"unit": "mA",
"min": -100,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Reference Input Current Range",
"symbol": "IREF",
"kind": "absolute_maximum",
"unit": "mA",
"min": 0.05,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Power Dissipation at 25oC (SOP package)",
"symbol": "PD",
"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 0.7,
"conditions": "SOP, TO-92 package at 25oC",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Junction Temperature Range",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "oC",
"min": -25,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Operating Temperature Range",
"symbol": "Tg",
"kind": "recommended_operating",
"unit": "oC",
"min": -25,
"typ": null,
"max": 85,
"conditions": "Operating temperature range applies unless otherwise specified",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "oC",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Thermal Resistance Junction-to-Ambient (SOP package)",
"symbol": "RJA",
"kind": "thermal",
"unit": "oC/W",
"min": null,
"typ": 178,
"max": null,
"conditions": "SOP, TO-92 package; value printed without min/max",
"source_page": 1,
"source": "datasheet"
}
]
}
},
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"sections": [
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],
"discovery_pitch": "HT431ARZ (HTCSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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