# DS18B20A

**KTP** · Temperature Sensors · MSOP-8

DS18B20A from KTP, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | DQ | bidirectional | Open-drain single-wire communication port with maximum sink current of 4.0 mA that also serves as power supply port in parasitic power mode. |
| 2 | NC | unconnected | Not connected |
| 3 | NC | unconnected | Not connected |
| 4 | GND | power_in | Ground connection |
| 5 | NC | unconnected | Not connected |
| 6 | NC | unconnected | Not connected |
| 7 | NC | unconnected | Not connected |
| 8 | VDD | power_in | Power supply input with operating voltage range 2.7V to 5.5V that must be grounded in parasitic power mode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KTP |
| Package | MSOP-8 |
| Category | Sensors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `DS18B20A`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ds18b20a-etched.step` / `ds18b20a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ds18b20a.step` / `ds18b20a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KTP datasheet](docs/ds18b20a-datasheet.pdf) (26 pp, sha256 `2932907319c5ea7e`, retrieved 2026-09-22, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/ds18b20a-datasheet.pdf)