# NTCG164QH474HT1

**TDK** · NTC Thermistors · 0603

NTCG164QH474HT1 from TDK, 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 | First Ag/Ni/Sn end terminal of the 470 kΩ (25°C) ±3% NTC thermistor, B25/85 4750 K, permissible operating current 0.04 mA at 25°C, operating range -40 to 125°C; non-polarized. |
| 2 | 2 | passive | Second Ag/Ni/Sn end terminal of the 470 kΩ (25°C) ±3% NTC thermistor, interchangeable with the first; max rated power 100 mW at 25°C, operating range -40 to 125°C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TDK |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal resistance (R25) | R25 |  | 470000 |  | Ω | at 25°C | 12 |
| Resistance tolerance |  | -3 |  | 3 | % | H code (±3%) | 12 |
| B constant B25/85 | B |  | 4750 |  | K | 25/85°C | 12 |
| B constant B25/50 | B |  | 4661 |  | K | 25/50°C | 12 |
| B constant B25/75 | B |  | 4728 |  | K | 25/75°C | 12 |
| B constant B25/100 | B |  | 4780 |  | K | 25/100°C | 12 |
| B constant tolerance |  | -3 |  | 3 | % | B constant tolerance as printed (+/-3%) | 12 |
| Allowable operating current |  |  |  | 0.04 | mA | at 25°C; self-heating limited to 1°C | 12 |
| Operating temperature range |  | -40 |  | 125 | °C | includes self-temperature rise | 12 |
| Storage temperature range |  | -40 |  | 125 | °C | storage; range applies after board mounting | 5 |
| Maximum rated power |  |  |  | 100 | mW | at 25°C rated ambient; depends on board layout (1608 size) | 7 |
| Thermal dissipation constant |  |  | 1 |  | mW/°C | at 25°C (1608 size) | 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: `NTCG164QH474HT1`
- Footprint: `Resistor_SMD:R_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `ntcg164qh474ht1-etched.step` / `ntcg164qh474ht1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ntcg164qh474ht1.step` / `ntcg164qh474ht1.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/8588918592338841600) (21 pp, sha256 `6990af8164a49b7c`, 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 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/ntcg164qh474ht1-datasheet.pdf)