component
TMP6431QDYARQ1
Public Made by Adomby adom
Texas Instruments PTC Thermistors, SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
TMP6431QDYARQ1
Texas Instruments · PTC Thermistors · SOD-523
TMP6431QDYARQ1 from Texas Instruments, in a SOD-523. 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 | - | passive | Negative thermistor terminal; it must sit at the lower potential so that pin 2 (+) is more positive than pin 1 for correct biasing, with VSNS limited to 0 to 5.5 V recommended (6 V absolute maximum) and ISNS limited to 100 µA recommended (450 µA absolute maximum). |
| 2 | + | passive | Positive thermistor terminal; it must be at a higher potential than pin 1 (-) to ensure correct operation, and should be connected to the highest voltage potential, with VSNS limited to 0 to 5.5 V recommended (6 V absolute maximum) and ISNS limited to 100 µA recommended (450 µA absolute maximum). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOD-523 |
| Category | Sensors |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Nominal resistance at 25°C (R25) | R25 | 46.53 | 47 | 47.47 | kΩ | TA=25°C | 6 |
| Resistance tolerance (RTOL) | RTOL | -1 | 1 | % | TA=25°C | 6 | |
| Resistance tolerance (RTOL) | RTOL | -1.5 | 1.5 | % | TA = -40°C - 125°C | 6 | |
| Temperature coefficient of resistance tolerance (TCR-35 %) | TCR-35 | -0.4 | 0.4 | % | T1 = -40°C, T2 = -30°C | 6 | |
| Temperature coefficient of resistance tolerance (TCR25 %) | TCR25 | -0.2 | 0.2 | % | T1 = 20°C, T2 = 30°C | 6 | |
| Temperature coefficient of resistance tolerance (TCR85 %) | TCR85 | -0.3 | 0.3 | % | T1 = 80°C, T2 = 90°C | 6 | |
| Sensor long-term drift (ΔR), 96 h, DYA package | ΔR | -1 | 0.14 | 1 | % | RH = 85%, 96 h continuous operation, TA = 130°C, VBias = 5.5V, DYA package | 6 |
| Sensor long-term drift (ΔR), 600 h, DYA package | ΔR | -1.5 | 0.2 | 1.5 | % | 600 h continuous operation, TA = 150°C, VBias = 5.5V, DYA package | 6 |
| Sensor long-term drift (ΔR), 1000 h, DYA package | ΔR | -1.8 | 0.3 | 1.8 | % | 1000 h continuous operation, TA = 150°C, VBias = 5.5V, DYA package | 6 |
| Voltage across pins 2 (+) and 1 (-) | 6 | V | 5 | ||||
| Current through device | 450 | µA | 5 | ||||
| Junction temperature | TJ | -65 | 155 | °C | 5 | ||
| Storage temperature | Tstg | -65 | 155 | °C | 5 | ||
| Voltage across pins 2 (+) and 1 (-) | VSns | 0 | 5.5 | V | 5 | ||
| Current through device | ISns | 0 | 100 | µA | 5 | ||
| Natural-ventilation operating temperature range, SOT-5X3/DYA package | TA | -40 | 150 | °C | Natural ventilation, DYA package | 5 | |
| Temperature coefficient of resistance (TCR-35) | TCR-35 | 6220 | ppm/°C | T1 = -40°C, T2 = -30°C | 6 | ||
| Temperature coefficient of resistance (TCR25) | TCR25 | 6400 | ppm/°C | T1 = 20°C, T2 = 30°C | 6 | ||
| Temperature coefficient of resistance (TCR85) | TCR85 | 5910 | ppm/°C | T1 = 80°C, T2 = 90°C | 6 | ||
| Thermal response time, stirred liquid (63%) | tRES | 0.6 | s | 63% response, still air T1 = 25°C to stirred liquid T2 = 125°C | 6 | ||
| Thermal response time, still air (63%) | tRES | 3.2 | s | 63% response, still air T1 = 25°C to T2 = 70°C | 6 | ||
| Junction-to-ambient thermal resistance (DYA) | RθJA | 749.2 | °C/W | 5 | |||
| Junction-to-case (top) thermal resistance (DYA) | RθJC(top) | 315.8 | °C/W | 5 | |||
| Junction-to-board thermal resistance (DYA) | RθJB | 506.2 | °C/W | 5 | |||
| Junction-to-top characterization parameter (DYA) | ΨJT | 109.3 | °C/W | 5 | |||
| Junction-to-board characterization parameter (DYA) | ΨJB | 500.4 | °C/W | 5 |
CAD (KiCad official)
- Symbol:
TMP6431QDYARQ1 - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
tmp6431qdyarq1-etched.step/tmp6431qdyarq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmp6431qdyarq1.step/tmp6431qdyarq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (28 pp, sha256
bac326980ac9ba01, retrieved 2026-10-14, 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).
# TMP6431QDYARQ1
**Texas Instruments** · PTC Thermistors · SOD-523
TMP6431QDYARQ1 from Texas Instruments, in a SOD-523. 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 | - | passive | Negative thermistor terminal; it must sit at the lower potential so that pin 2 (+) is more positive than pin 1 for correct biasing, with VSNS limited to 0 to 5.5 V recommended (6 V absolute maximum) and ISNS limited to 100 µA recommended (450 µA absolute maximum). |
| 2 | + | passive | Positive thermistor terminal; it must be at a higher potential than pin 1 (-) to ensure correct operation, and should be connected to the highest voltage potential, with VSNS limited to 0 to 5.5 V recommended (6 V absolute maximum) and ISNS limited to 100 µA recommended (450 µA absolute maximum). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOD-523 |
| Category | Sensors |
| Pins | 2 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Nominal resistance at 25°C (R25) | R25 | 46.53 | 47 | 47.47 | kΩ | TA=25°C | 6 |
| Resistance tolerance (RTOL) | RTOL | -1 | | 1 | % | TA=25°C | 6 |
| Resistance tolerance (RTOL) | RTOL | -1.5 | | 1.5 | % | TA = -40°C - 125°C | 6 |
| Temperature coefficient of resistance tolerance (TCR-35 %) | TCR-35 | -0.4 | | 0.4 | % | T1 = -40°C, T2 = -30°C | 6 |
| Temperature coefficient of resistance tolerance (TCR25 %) | TCR25 | -0.2 | | 0.2 | % | T1 = 20°C, T2 = 30°C | 6 |
| Temperature coefficient of resistance tolerance (TCR85 %) | TCR85 | -0.3 | | 0.3 | % | T1 = 80°C, T2 = 90°C | 6 |
| Sensor long-term drift (ΔR), 96 h, DYA package | ΔR | -1 | 0.14 | 1 | % | RH = 85%, 96 h continuous operation, TA = 130°C, VBias = 5.5V, DYA package | 6 |
| Sensor long-term drift (ΔR), 600 h, DYA package | ΔR | -1.5 | 0.2 | 1.5 | % | 600 h continuous operation, TA = 150°C, VBias = 5.5V, DYA package | 6 |
| Sensor long-term drift (ΔR), 1000 h, DYA package | ΔR | -1.8 | 0.3 | 1.8 | % | 1000 h continuous operation, TA = 150°C, VBias = 5.5V, DYA package | 6 |
| Voltage across pins 2 (+) and 1 (-) | | | | 6 | V | | 5 |
| Current through device | | | | 450 | µA | | 5 |
| Junction temperature | TJ | -65 | | 155 | °C | | 5 |
| Storage temperature | Tstg | -65 | | 155 | °C | | 5 |
| Voltage across pins 2 (+) and 1 (-) | VSns | 0 | | 5.5 | V | | 5 |
| Current through device | ISns | 0 | | 100 | µA | | 5 |
| Natural-ventilation operating temperature range, SOT-5X3/DYA package | TA | -40 | | 150 | °C | Natural ventilation, DYA package | 5 |
| Temperature coefficient of resistance (TCR-35) | TCR-35 | | 6220 | | ppm/°C | T1 = -40°C, T2 = -30°C | 6 |
| Temperature coefficient of resistance (TCR25) | TCR25 | | 6400 | | ppm/°C | T1 = 20°C, T2 = 30°C | 6 |
| Temperature coefficient of resistance (TCR85) | TCR85 | | 5910 | | ppm/°C | T1 = 80°C, T2 = 90°C | 6 |
| Thermal response time, stirred liquid (63%) | tRES | | 0.6 | | s | 63% response, still air T1 = 25°C to stirred liquid T2 = 125°C | 6 |
| Thermal response time, still air (63%) | tRES | | 3.2 | | s | 63% response, still air T1 = 25°C to T2 = 70°C | 6 |
| Junction-to-ambient thermal resistance (DYA) | RθJA | | 749.2 | | °C/W | | 5 |
| Junction-to-case (top) thermal resistance (DYA) | RθJC(top) | | 315.8 | | °C/W | | 5 |
| Junction-to-board thermal resistance (DYA) | RθJB | | 506.2 | | °C/W | | 5 |
| Junction-to-top characterization parameter (DYA) | ΨJT | | 109.3 | | °C/W | | 5 |
| Junction-to-board characterization parameter (DYA) | ΨJB | | 500.4 | | °C/W | | 5 |
## CAD (KiCad official)
- Symbol: `TMP6431QDYARQ1`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `tmp6431qdyarq1-etched.step` / `tmp6431qdyarq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmp6431qdyarq1.step` / `tmp6431qdyarq1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tmp64-q1) (28 pp, sha256 `bac326980ac9ba01`, retrieved 2026-10-14, 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](docs/tmp6431qdyarq1-datasheet.pdf)