component
GX18B20SH
Public Made by Adomby adom
GXCAS Temperature Sensors, TO-92S. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownGX18B20SH
GXCAS · Temperature Sensors · TO-92S
GX18B20SH from GXCAS, in a TO-92S. 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 pin. |
| 2 | DQ | bidirectional | Open-drain 1-Wire data input/output pin that also supplies the chip in parasite power mode, needing an external pull-up of about 4.7k-5k ohm. |
| 3 | VDD | power_in | Power supply pin (2.5V to 5.5V), which must be connected to ground in parasite power mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GXCAS |
| Package | TO-92S |
| 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 |
|---|---|---|---|---|---|---|---|
| Voltage on any pin relative to ground | -0.5 | 6 | V | 20 | |||
| Operating temperature range | -55 | 125 | °C | 20 | |||
| Storage temperature range | -55 | 125 | °C | 20 | |||
| Supply voltage range | VDD | 2.5 | 5.5 | V | -55°C to +125°C | 20 | |
| Temperature measurement accuracy | -0.3 | 0.3 | °C | Package list accuracy (customizable to ±0.1°C/0.2°C) | 23 | ||
| Temperature measurement accuracy | -0.1 | 0.1 | °C | 35°C to 45°C | 1 | ||
| NV write cycle time | tWR | 8 | 12 | ms | -55°C to +100°C; VDD = 2.5V to 5.5V | 21 | |
| EEPROM writes | NEEWR | 1000 | writes | -55°C to +55°C | 21 | ||
| EEPROM data retention | tEEDR | 10 | years | -55°C to +55°C | 21 | ||
| Temperature conversion time, 12-bit | tCONV | 400 | ms | 12-bit resolution | 21 | ||
| Temperature conversion time, 11-bit | tCONV | 200 | ms | 11-bit resolution | 21 | ||
| Temperature conversion time, 10-bit | tCONV | 100 | ms | 10-bit resolution | 21 | ||
| Temperature conversion time, 9-bit | tCONV | 50 | ms | 9-bit resolution | 21 | ||
| Time to strong pullup on | tSPON | 10 | µs | Start Convert T Command Issued | 21 | ||
| Time slot | tSLOT | 60 | 120 | µs | 21 | ||
| Recovery time | tREC | 1 | µs | 21 | |||
| Write 0 low time | tLOW0 | 60 | 120 | µs | 21 | ||
| Write 1 low time | tLOW1 | 1 | 15 | µs | 21 | ||
| Read data valid | tRDV | 15 | µs | 21 | |||
| Reset time high | tRSTH | 480 | µs | 21 | |||
| Reset time low | tRSTL | 1 | ms | 21 | |||
| Presence-detect high | tPDHIGH | 15 | 60 | µs | 21 | ||
| Presence-detect low | tPDLOW | 60 | 240 | µs | 21 | ||
| Input/output capacitance | CIN/OUT | 25 | pF | 21 |
CAD (KiCad official)
- Symbol:
GX18B20SH - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files:
gx18b20sh-etched.step/gx18b20sh-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gx18b20sh.step/gx18b20sh.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GXCAS datasheet (23 pp, sha256
5fce358ff9f8a4ee, retrieved 2026-10-22, 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).