component
DS18B20U
Public Made by Adomby adom
Mysentech Temperature Sensors, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "ds18b20u",
"title": "DS18B20U",
"brief": "Mysentech Temperature Sensors, MSOP-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": [
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"ds18b20u",
"factory-2.0.0",
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],
"component": {
"mpn": "DS18B20U",
"manufacturer": "Mysentech",
"package": "MSOP-8",
"pin_count": 8,
"category": "Sensors",
"subcategory": "Temperature Sensors",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757703799320657920",
"parts": {
"symbol": "ds18b20u.kicad_sym",
"footprint": "ds18b20u.kicad_mod",
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"lbr": "ds18b20u.lbr"
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"distributor_links": {
"lcsc": "C22360666",
"mouser": "700-DS18B20U-NR"
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"checked_at": "2026-10-17T06:32:59Z",
"source": "Component Ocean /api/assign-pns",
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"pn": null,
"status": "no match"
},
"mouser": {
"pn": "700-DS18B20U-NR",
"status": "found",
"lifecycle": "Obsolete"
}
},
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"name": "DQ",
"type": "bidirectional",
"description": "Single-wire digital data input/output of the 1-Wire interface, an open-drain/tri-state port that needs an external pull-up of about 4.7 kΩ (1 kΩ to 10 kΩ per the DC table) and a bus held low longer than 480 µs resets all devices."
},
{
"number": "2",
"name": "N.C.",
"type": "unconnected",
"description": "Not connected (no internal connection for this package variant)."
},
{
"number": "3",
"name": "N.C.",
"type": "unconnected",
"description": "Not connected (no internal connection for this package variant)."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Ground reference for all voltages on the device."
},
{
"number": "5",
"name": "N.C.",
"type": "unconnected",
"description": "Not connected (no internal connection for this package variant)."
},
{
"number": "6",
"name": "N.C.",
"type": "unconnected",
"description": "Not connected (no internal connection for this package variant)."
},
{
"number": "7",
"name": "N.C.",
"type": "unconnected",
"description": "Not connected (no internal connection for this package variant)."
},
{
"number": "8",
"name": "VDD",
"type": "power_in",
"description": "Supply pin for external power, with a supply range of 1.8 V to 5.5 V; the datasheet also allows parasitic (DQ-powered) operation."
}
],
"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: MPN mismatch: the request is DS18B20U, but the datasheet is for the MYDS18B20 series. The MSOP8 vari; The MSOP8 pin mapping comes from the pin-assignment table on page 3 (MSOP8 column: DQ=1, N.C.=2,3,5,; The DQ description includes the pull-up range (1 kΩ to 10 kΩ) and the 480 µs reset condition from th"
],
"pages_sent": 27,
"cost_usd": 0.0833,
"at": "2026-10-17T06:30:43"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757703799320657920",
"pages": 27,
"sha256": "190d56a780e2d38b",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 8,
"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ds18b20u.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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3,
0.95
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"zmin_mm": 0,
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"sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ds18b20u-etched.step",
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]
},
"metadata": {
"specs": {
"Manufacturer": "Mysentech",
"Package": "MSOP-8",
"Category": "Sensors",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Supply voltage",
"symbol": "VDD",
"kind": "electrical",
"unit": "V",
"min": 1.8,
"typ": null,
"max": 5.5,
"conditions": "电源供电电压",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Temperature error (0°C to +60°C, 18B20U max accuracy)",
"symbol": "tERR",
"kind": "tolerance",
"unit": "°C",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "0°C~+60°C (note 6, 18B20U)",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Temperature error (full range)",
"symbol": "tERR",
"kind": "tolerance",
"unit": "°C",
"min": -1.5,
"typ": null,
"max": 1.5,
"conditions": "-55°C 到+125°C",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Pull-down current",
"symbol": "IL",
"kind": "electrical",
"unit": "mA",
"min": 4,
"typ": null,
"max": null,
"conditions": "VI/O=0.4V",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Idle state current",
"symbol": "IDDS",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.2,
"max": 1,
"conditions": "",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Pull-up resistor",
"symbol": "Rup",
"kind": "electrical",
"unit": "KΩ",
"min": 1,
"typ": 4.7,
"max": 10,
"conditions": "",
"source_page": 21,
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{
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"typ": null,
"max": 5,
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},
{
"name": "E2PROM write endurance",
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"kind": "electrical",
"unit": "次",
"min": 50000,
"typ": null,
"max": null,
"conditions": "-55°C 到+55°C",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Non-volatile memory write cycle time",
"symbol": "tWR",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Time slot length",
"symbol": "tSLOT",
"kind": "timing",
"unit": "µs",
"min": 60,
"typ": null,
"max": 120,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Recovery time",
"symbol": "tREC",
"kind": "timing",
"unit": "µs",
"min": 1,
"typ": 5,
"max": null,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Write 0 low time",
"symbol": "tLOW0",
"kind": "timing",
"unit": "µs",
"min": 60,
"typ": 60,
"max": 120,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Write 1 low time",
"symbol": "tLOW1",
"kind": "timing",
"unit": "µs",
"min": 1,
"typ": 5,
"max": 15,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Read data valid time",
"symbol": "tRDV",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": 5,
"max": 15,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Reset low time",
"symbol": "tRSTL",
"kind": "timing",
"unit": "µs",
"min": 480,
"typ": 960,
"max": null,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Presence detect high time",
"symbol": "tPDHIGH",
"kind": "timing",
"unit": "µs",
"min": 15,
"typ": 30,
"max": 60,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Presence detect low time",
"symbol": "tPDLOW",
"kind": "timing",
"unit": "µs",
"min": 60,
"typ": 115,
"max": 240,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Temperature conversion time",
"symbol": "tCONV",
"kind": "timing",
"unit": "ms",
"min": 15,
"typ": 100,
"max": 500,
"conditions": "见备注",
"source_page": 22,
"source": "datasheet"
},
{
"name": "Voltage on any pin to GND",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Operating temperature range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 21,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 21,
"source": "datasheet"
}
]
}
},
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],
"discovery_pitch": "DS18B20U (Mysentech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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}
}