# NTCG203NH103JT1

**TDK** · NTC Thermistors · 0805

NTCG203NH103JT1 from TDK, 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 | Terminal electrode of the non-polarized NTC thermistor (10 kΩ at 25°C, ±5%, 0.44 mA permissible operating current); interchangeable with the other terminal, with a recommended land width of 0.7 to 0.9 mm. |
| 2 | 2 | passive | Second terminal electrode of the non-polarized NTC thermistor (operating range -40 to 125°C, maximum rated power 200 mW at 25°C); the two lands are 0.9 to 1.2 mm apart. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TDK |
| 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 (NTCG203NH103JT1, +/-5%) |  | -5 |  | 5 | % | Resistance at 25°C | 12 |
| B constant tolerance (+/-3%) |  | -3 |  | 3 | % | B constant tolerance | 12 |
| Maximum rated power (2012 size) |  |  |  | 200 | mW | 25°C; maximum power that can be applied continuously | 5 |
| Permissible operating current |  |  |  | 0.44 | mA | [25°C] | 12 |
| Operating temperature range |  | -40 |  | 125 | °C |  | 12 |
| Storage temperature |  | 10 |  | 40 | °C | Storage; relative humidity 75% or below; use within six months | 2 |
| Resistance value (nominal, R25) |  |  | 10000 |  | Ω | [25°C] | 12 |
| Dissipation factor (2012 size) |  |  | 2 |  | mW/°C | 25°C; still air | 5 |
| B constant (25/50°C) |  |  | 3590 |  | K | B constant [25/50°C] | 12 |
| B constant (25/75°C) |  |  | 3635 |  | K | B constant [25/75°C] | 12 |
| B constant (25/85°C) |  |  | 3650 |  | K | B constant [25/85°C] | 12 |
| B constant (25/100°C) |  |  | 3670 |  | K | B constant [25/100°C] | 12 |

## 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 |
|---|---|---|---|---|
| contacts |  | nickel | Terminal electrode (4) Ni | 3 |

## CAD (KiCad official)

- Symbol: `NTCG203NH103JT1`
- Footprint: `Resistor_SMD:R_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `ntcg203nh103jt1-etched.step` / `ntcg203nh103jt1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ntcg203nh103jt1.step` / `ntcg203nh103jt1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TDK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8559345917125431296) (20 pp, sha256 `3142e78c4857d39e`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).

[Datasheet PDF](docs/ntcg203nh103jt1-datasheet.pdf)