component
QN0805X103F3450FB
Public Made by Adomby adom
QAMcn NTC Thermistors, 0805. 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.
Contents
README
markdownQN0805X103F3450FB
QAMcn · NTC Thermistors · 0805
QN0805X103F3450FB from QAMcn, in a 0805. 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 | 1 | passive | One end electrode of the chip NTC thermistor, 10 kΩ ±1% at 25℃, B(25/50℃) 3450 K ±1%, operating temperature -40 to +125℃; non-polarized and interchangeable with the other terminal. |
| 2 | 2 | passive | Other end electrode of the chip NTC thermistor, 10 kΩ ±1% at 25℃, rated power 100 mW at 25℃, permissible operating current 0.44 mA; non-polarized and interchangeable with the other terminal. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | QAMcn |
| Package | 0805 |
| 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 |
|---|---|---|---|---|---|---|---|
| Resistance tolerance (code F, ±1%) at 25℃ | R25 | -1 | 1 | % | Tolerance code F (±1%) per part-numbering table | 2 | |
| B constant tolerance (code F, ±1%) | B | -1 | 1 | % | B-value tolerance code F (±1%) per part-numbering table | 2 | |
| Thermal time constant | 5 | s | Printed as ＜5 s, zero-power condition | 2 | |||
| Operating ambient temperature | -40 | 125 | ℃ | Operating ambient temperature | 2 | ||
| Resistance at -40℃ (R-T table) | R | 195.784 | 203.814 | 212.153 | kΩ | R-T table, temperature -40℃ (R_Min / R_Cent / R_Max) | 10 |
| Resistance at 25℃ (R-T table) | R | 9.9 | 10 | 10.1 | kΩ | R-T table, temperature 25℃ (R_Min / R_Cent / R_Max) | 11 |
| Resistance at 85℃ (R-T table) | R | 1.358 | 1.399 | 1.441 | kΩ | R-T table, temperature 85℃ (R_Min / R_Cent / R_Max) | 12 |
| Resistance at 125℃ (R-T table) | R | 0.488 | 0.508 | 0.528 | kΩ | R-T table, temperature 125℃ (R_Min / R_Cent / R_Max) | 13 |
| Nominal zero-power resistance | R25 | 10 | kΩ | Zero-power resistance at 25℃ | 2 | ||
| B constant (25/50℃) | B | 3450 | K | B constant (25/50℃), calculation method B | 2 | ||
| B constant (25/85℃) | B | 3500 | K | B constant (25/85℃) as printed in electrical characteristics table | 2 | ||
| Permissible operating current | 0.44 | mA | 25℃ ambient | 2 | |||
| Dissipation factor | 2 | mW/℃ | Dissipation factor as printed | 2 | |||
| Rated electric power | 100 | mW | 25℃ ambient; power to raise surface temperature 100℃ by self-heating | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | PC | The current that keep body temperature of chip NTC on the PC board in still air | 4 |
CAD (KiCad official)
- Symbol:
QN0805X103F3450FB - Footprint:
Resistor_SMD:R_0805_2012Metric - 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files:
qn0805x103f3450fb-etched.step/qn0805x103f3450fb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);qn0805x103f3450fb.step/qn0805x103f3450fb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: QAMcn datasheet (13 pp, sha256
52d3e91845d88833, 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-sonnet-5-5(text+vision), consensusclaude-opus-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).