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GX1831
Public Made by Adomby adom
GXCAS Temperature Sensors, TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownGX1831
GXCAS · Temperature Sensors · TO-92
GX1831 from GXCAS, 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 pin for the device; it is the reference for all voltages on the part, which the datasheet states are measured to ground. |
| 2 | DQ | bidirectional | Open-drain 1-Wire data input/output that needs an external pull-up of about 4.7 kΩ to VPU, and which also supplies the chip in parasite-power mode. |
| 3 | VDD | power_in | Supply pin for external power, operating from 2.5 V to 5.5 V, and it must be connected to GND when the device runs in parasite-power mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GXCAS |
| 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 |
|---|---|---|---|---|---|---|---|
| Temperature measurement accuracy | -0.4 | 0.4 | °C | -10°C to +70°C | 1 | ||
| Supply voltage (VDD) | VDD | 2.5 | 5.5 | V | DC characteristics range -55°C to +125°C | 20 | |
| Voltage range on any pin to ground | -0.5 | 6 | V | Each pin to ground | 20 | ||
| Operating temperature range | -55 | 125 | °C | 20 | |||
| Storage temperature range | -55 | 125 | °C | 20 | |||
| Temperature conversion time | tCONV | 1.5 | ms | 12-bit resolution | 21 | ||
| Time to strong pullup on | tSPON | 10 | µs | After 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 | |||
| Presence-detect high | tPDHIGH | 15 | 60 | µs | 21 | ||
| Presence-detect low | tPDLOW | 60 | 240 | µs | 21 | ||
| Parasite-powered supply current | 1.5 | mA | Parasite-powered mode, during temperature conversion or EEPROM copy | 6 | |||
| 1-Wire bus external pull-up resistor | 4.7 | kΩ | 1-Wire bus pull-up to VPU | 10 |
CAD (KiCad official)
- Symbol:
GX1831 - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files:
gx1831-etched.step/gx1831-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gx1831.step/gx1831.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GXCAS datasheet (24 pp, sha256
63b29f82b79b99e0, 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, primaryclaude-haiku-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).