component
ZTL431BQFTA
Public Made by Adomby adom
Diodes Incorporated Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510
{
"schema_version": 1,
"type": "component",
"slug": "ztl431bqfta",
"title": "ZTL431BQFTA",
"brief": "Diodes Incorporated Voltage Reference, SOT-23. 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)",
"ztl431bqfta",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ZTL431BQFTA",
"manufacturer": "Diodes Incorporated",
"package": "SOT-23",
"pin_count": 3,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Reference",
"datasheet": "https://www.diodes.com/assets/Datasheets/ZTL431BQFTA.pdf",
"parts": {
"symbol": "ztl431bqfta.kicad_sym",
"footprint": "ztl431bqfta.kicad_mod",
"model_3d": "ztl431bqfta-hero.glb",
"model_3d_plain": "ztl431bqfta-etched.glb",
"model_3d_step": "ztl431bqfta-etched.step",
"model_3d_step_plain": "ztl431bqfta.step",
"lbr": "ztl431bqfta.lbr"
},
"distributor_links": {
"lcsc": "C5448341"
},
"distributor_check": {
"checked_at": "2026-10-22T21:06:08Z",
"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 of the shunt regulator, sinks 1mA to 100mA (150mA absolute maximum) with VKA from VREF up to 20V."
},
{
"number": "2",
"name": "Ref",
"type": "input",
"description": "Reference input that sets the cathode voltage from the external R1/R2 divider, with a nominal 2.5V reference and an input current range of -50µA to +10mA."
},
{
"number": "3",
"name": "Anode",
"type": "passive",
"description": "Anode of the shunt regulator, normally connected to ground, and the reference for all specified voltages."
}
],
"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: ZTL431BQFTA is the F-suffix SOT23 part with the ZTL431 pinout (1=Cathode, 2=Ref, 3=Anode). The ZTL43",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 10,
"cost_usd": 0.3211,
"at": "2026-10-22T21:05:50"
},
"datasheet": {
"url": "https://www.diodes.com/assets/Datasheets/ZTL431BQFTA.pdf",
"pages": 10,
"sha256": "cdce6243fdbe09dd",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 3,
"described": 3,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ztl431bqfta.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.5,
3,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ztl431bqfta-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.5,
3,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "019d1f34faff90c0671fa47d6ab3a88e5b18459312e00a0279f113adc01c25ee",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Diodes Incorporated",
"Package": "SOT-23",
"Category": "Power Management (PMIC)",
"Pins": "3"
},
"appearance": {
"contacts": {
"quote": "• Terminals: Finish — Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 • Weight:",
"page": 9,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
"datasheet_sha256": "cdce6243fdbe09dd80e9a6376bd1cde1444bac925669454cc718bf21b449c6e2"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "cdce6243fdbe09dd80e9a6376bd1cde1444bac925669454cc718bf21b449c6e2",
"rows": [
{
"name": "Reference Voltage (B grade)",
"symbol": "VREF",
"kind": "electrical",
"unit": "V",
"min": 2.487,
"typ": 2.5,
"max": 2.513,
"conditions": "VKA = VREF, IKA = 10mA, B - grade",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Deviation of Reference Voltage over Full Temperature Range",
"symbol": "VDEV",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 6,
"max": 16,
"conditions": "VKA = VREF, IKA = 10mA, TA = 0°C to +70°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Deviation of Reference Voltage over Full Temperature Range",
"symbol": "VDEV",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 14,
"max": 34,
"conditions": "VKA = VREF, IKA = 10mA, TA = -40°C to +85°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Ratio of Change in Reference Voltage to Change in Cathode Voltage",
"symbol": "ΔVREF/ΔVKA",
"kind": "electrical",
"unit": "mV/V",
"min": null,
"typ": -1.4,
"max": -2.7,
"conditions": "IKA = 10mA, VKA = VREF to 10V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Ratio of Change in Reference Voltage to Change in Cathode Voltage",
"symbol": "ΔVREF/ΔVKA",
"kind": "electrical",
"unit": "mV/V",
"min": null,
"typ": -1,
"max": -2,
"conditions": "IKA = 10mA, VKA = 10V to 20V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Reference Input Current",
"symbol": "IREF",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 2,
"max": 4,
"conditions": "IKA = 10mA, R1 = 10kΩ, R2 = open",
"source_page": 2,
"source": "datasheet"
},
{
"name": "IREF Deviation over Full Temperature Range",
"symbol": "ΔIREF",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.8,
"max": 1.2,
"conditions": "IKA = 10mA, R1 = 10kΩ, R2 = open, TA = 0°C to +70°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "IREF Deviation over Full Temperature Range",
"symbol": "ΔIREF",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.8,
"max": 2.5,
"conditions": "IKA = 10mA, R1 = 10kΩ, R2 = open, TA = -40°C to +85°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Minimum Cathode Current for Regulation",
"symbol": "IKA(MIN)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.4,
"max": 0.6,
"conditions": "VKA = VREF",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Off-State Current",
"symbol": "IKA(OFF)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.1,
"max": 0.5,
"conditions": "VKA = 20V, VREF = 0V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Dynamic Output Impedance",
"symbol": "RZ",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": 0.2,
"max": 0.5,
"conditions": "VKA = VREF, f = 0Hz",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Cathode Voltage",
"symbol": "VKA",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 20,
"conditions": "relative to Anode",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Continuous Cathode Current",
"symbol": "IKA",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Reference Input Current Range",
"symbol": "IREF",
"kind": "absolute_maximum",
"unit": "µA",
"min": -50,
"typ": null,
"max": null,
"conditions": "lower limit of range -50µA to +10mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Reference Input Current Range",
"symbol": "IREF",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 10,
"conditions": "upper limit of range -50µA to +10mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating Junction Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage Temperature",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD HBM Human Body Model",
"symbol": "",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 2,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD MM Machine Model",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD CDM Charged Device Model",
"symbol": "",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Cathode Voltage",
"symbol": "VKA",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 20,
"conditions": "min is VREF",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Cathode Current",
"symbol": "IKA",
"kind": "recommended_operating",
"unit": "mA",
"min": 1,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating Ambient Temperature Range",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal Resistance Junction to Ambient, SOT23",
"symbol": "θJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": null,
"max": 380,
"conditions": "SOT23",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Power Dissipation, SOT23",
"symbol": "PDIS",
"kind": "thermal",
"unit": "mW",
"min": null,
"typ": null,
"max": 260,
"conditions": "TA = +25°C, TJ = +125°C, SOT23",
"source_page": 2,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ztl431bqfta"
],
"discovery_pitch": "ZTL431BQFTA (Diodes Incorporated) 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",
"ztl431bqfta.kicad_sym",
"ztl431bqfta.kicad_mod",
"ztl431bqfta.glb",
"ztl431bqfta.step",
"ztl431bqfta.lbr",
"docs/hero.png",
"docs/ztl431bqfta-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ztl431bqfta-hero.glb",
"ztl431bqfta-hero.overlay.json",
"ztl431bqfta-etched.glb"
],
"visibility": {
"public": true
}
}