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SD5820A

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Hangzhou SDIC Microelectronics Temperature Sensors, TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Symbol & Footprint

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Datasheet

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Contents

README

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SD5820A

Hangzhou SDIC Microelectronics · Temperature Sensors · TO-92

SD5820A from Hangzhou SDIC Microelectronics, in a TO-92. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground connection for the sensor; parasitic-power mode requires VDD to be tied to this ground.
2 DIO bidirectional Open-drain single-wire data port that needs an external pull-up resistor, with a minimum 4 mA sink current at VOL=0.3 V and maximum 1 uA high-level leakage at VOH=VDD.
3 VDD power_in Supply pin with a 2.7 V to 5.5 V operating range (3.0 V typical); the device can also run in parasitic-power mode drawn from the bus.

Key specifications

Parameter Value
Manufacturer Hangzhou SDIC Microelectronics
Package TO-92
Category Sensors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
工作温度 (absolute maximum rating) TA -55 125 °C 13
储存温度 TS -65 150 °C 13
供电电压 VDD -0.3 7 V 13
数字输入、输出电压 VIN, VOUT -0.3 V printed as VDD+0.3 for max; not representable as number 13
最大输出电流 Ioutmax 10 mA 13
ESD 人体模型 ESD 2000 V 13
工作电压 VDD 2.7 3 5.5 V 13
工作温度 Toper -55 125 ℃ 13
温度准确度 (-10~+85℃) Terr -0.8 0.5 0.8 ℃ -10℃ ~ +85℃,VDD=2.7~5.5V 13
温度准确度 (-55~+125℃) Terr -1.5 0.8 1.5 ℃ -55℃ ~ +125℃,VDD=2.7~5.5V 13
系统待机电流 Ivdd2 3 系统待机 13
低电平 Sink 电流 Isink 4 mA VOL=0.3V 13
高电平泄漏电流 Ileak 1 uA VOH=VDD 13
温度转换时间 9-bit 精度 tCONV 93.75 ms 9-bit 精度 13
温度转换时间 10-bit 精度 tCONV 187.5 ms 10-bit精度 13
温度转换时间 11-bit 精度 tCONV 375 ms 11-bit精度 13
温度转换时间 12-bit 精度 tCONV 750 ms 12-bit精度 13
时隙 tSLOT 60 120 μs 13
恢复时间 tREC 1 μs 13
写0低电平时间 rLOW0 60 120 μs 13
写1低电平时间 tLOW1 1 15 μs 13
读数据有效 tRDV 15 μs 13
复位高电平时间 tRSTH 480 μs 13
复位低电平时间 tRSTL 480 μs 13
存在检测高电平时间 tPDHIGH 15 60 μs 13
存在检测低电平时间 tPDLOW 60 240 μs 14

CAD (KiCad official)

  • Symbol: SD5820A
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: sd5820a-etched.step / sd5820a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sd5820a.step / sd5820a.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Hangzhou SDIC Microelectronics datasheet (17 pp, sha256 e902541916ede2b7, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF