# NTCG204AH473JT1

**TDK** · NTC Thermistors · 0805

NTCG204AH473JT1 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 47 kΩ ±5% NTC thermistor (Ag/Ni/Sn external electrode); the device is non-polarized and the two terminals are interchangeable. |
| 2 | 2 | passive | Second terminal electrode of the 47 kΩ ±5% NTC thermistor (Ag/Ni/Sn external electrode); operating temperature -40 to 125 °C and allowable operating current 0.20 mA at 25 °C. |

## 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 (suffix J) |  | -5 |  | 5 | % | Resistance tolerance J = ±5% at 25°C | 5 |
| B constant tolerance (suffix H) |  | -3 |  | 3 | % | B constant tolerance H = ±3% | 13 |
| Maximum allowable working current |  |  |  | 0.2 | mA | 25°C; max load current with self-heating ≤1°C | 13 |
| Operating temperature range |  | -40 |  | 125 | °C | Operating range including self-temperature rise | 13 |
| Storage temperature range |  | -40 |  | 125 | °C | Storage temperature (per p.5 merged line; see review) | 5 |
| Maximum rated power (2012) |  |  |  | 200 | mW | 25°C rated ambient, continuous; depends on board layout | 7 |
| Nominal resistance R25 | R25 |  | 47000 |  | Ω | 25°C | 13 |
| B constant B25/85 | B25/85 |  | 4000 |  | K | Suffix 4A (B25/85 = 4000-4050 K) | 13 |
| B constant B25/50 | B25/50 |  | 3931 |  | K | Printed for this part (p.7 shows 3,930 K) | 13 |
| B constant B25/75 | B25/75 |  | 3982 |  | K | Printed for this part | 13 |
| B constant B25/100 | B25/100 |  | 4023 |  | K | Printed for this part | 13 |
| Thermal dissipation constant |  |  | 2 |  | mW/°C | 25°C; power to raise body temperature 1°C | 7 |

## 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 | 端子电极 (4) Ni | 3 |

## CAD (KiCad official)

- Symbol: `NTCG204AH473JT1`
- Footprint: `Resistor_SMD:R_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `ntcg204ah473jt1-etched.step` / `ntcg204ah473jt1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ntcg204ah473jt1.step` / `ntcg204ah473jt1.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/8588950112860557312) (21 pp, sha256 `6990af8164a49b7c`, 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`, 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/ntcg204ah473jt1-datasheet.pdf)