# QN0603X103F3435FA

**QAMcn(恭成科技)** · NTC Thermistors · 0603

QN0603X103F3435FA from QAMcn(恭成科技), in a 0603. 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 | Terminal 1 of an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | QAMcn(恭成科技) |
| Package | 0603 |
| 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%) |  | -1 |  | 1 | % | Part-number tolerance code F (±1%) | 3 |
| B constant tolerance (code F, ±1%) |  | -1 |  | 1 | % | B constant tolerance code F (±1%) | 3 |
| Operating ambient temperature |  | -40 |  | 125 | ℃ | Operating ambient temperature | 3 |
| Storage temperature |  | -10 |  | 40 | ℃ | Storage; product storage period 6 months after delivery | 9 |
| Storage relative humidity |  |  |  | 75 | %RH | Storage (≦75%RH) | 9 |
| Reflow peak temperature |  |  |  | 260 | ℃ | Re-flow, peak temperature 260℃ max / 10 sec; max 2 reflows | 10 |
| Iron soldering tip temperature |  |  |  | 280 | ℃ | Iron soldering, tip temperature max; 3 sec max, max 1 time | 10 |
| Thermal time constant |  |  |  | 5 | s | Printed '<5'; measured at 25℃ still air, single unit without mounting | 3 |
| Resistance R_Min / R_Cent / R_Max at -40℃ | R | 189.674 | 197.39 | 205.4 | kΩ | R-T table, temperature -40℃ | 12 |
| Resistance R_Min / R_Cent / R_Max at 25℃ | R | 9.9 | 10 | 10.1 | kΩ | R-T table, temperature 25℃ | 13 |
| Resistance R_Min / R_Cent / R_Max at 125℃ | R | 0.512 | 0.532 | 0.554 | kΩ | R-T table, temperature 125℃ | 15 |
| Nominal zero-power resistance | R25 |  | 10 |  | kΩ | 25℃ (printed 10±1%) | 3 |
| Resistance tolerance at -40℃ (Res TOL.) | Res TOL. |  | 4.06 |  | % | R-T table, temperature -40℃ | 12 |
| Resistance tolerance at 25℃ (Res TOL.) | Res TOL. |  | 1 |  | % | R-T table, temperature 25℃ | 13 |
| Resistance tolerance at 125℃ (Res TOL.) | Res TOL. |  | 4.01 |  | % | R-T table, temperature 125℃ | 15 |
| Temperature tolerance at -40℃ (Temp TOL.) | Temp TOL. |  | 0.69 |  | ℃ | R-T table, temperature -40℃ | 12 |
| Temperature tolerance at 25℃ (Temp TOL.) | Temp TOL. |  | 0.27 |  | ℃ | R-T table, temperature 25℃ | 13 |
| Temperature tolerance at 125℃ (Temp TOL.) | Temp TOL. |  | 1.82 |  | ℃ | R-T table, temperature 125℃ | 15 |
| B constant (25/85℃) | B |  | 3435 |  | K | B constant 25/85℃, calculation method A (25℃&85℃); tolerance ±1% per tolerance row | 3 |
| B constant (25/50℃) | B |  | 3380 |  | K | B constant 25/50℃, reference value (ref.) | 3 |
| Permissible operating current |  |  | 0.31 |  | mA | 25℃, still air, single unit without mounting | 3 |
| Dissipation factor |  |  | 1 |  | mW/℃ | 25℃, still air, single unit without mounting | 3 |
| Rated electric power |  |  | 100 |  | mW | Rated Electric Power at 25℃ | 3 |

## 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 | 5 |

## CAD (KiCad official)

- Symbol: `QN0603X103F3435FA`
- Footprint: `Resistor_SMD:R_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `qn0603x103f3435fa-etched.step` / `qn0603x103f3435fa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `qn0603x103f3435fa.step` / `qn0603x103f3435fa.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [QAMcn(恭成科技) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756320291637477376) (15 pp, sha256 `e0c0479421e805a3`, retrieved 2026-10-17, 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`, primary `two-terminal convention` (convention), consensus `off` (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/qn0603x103f3435fa-datasheet.pdf)