# HT8603ARTZ

**HTCSEMI** · Precision OpAmps · SOT-23-5

HT8603ARTZ from HTCSEMI, in a SOT-23-5. 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 | OUT | output | Amplifier output, whose voltage range extends to within mV of each supply rail. |
| 2 | V- | power_in | Negative power supply, normally tied to ground, may be tied to another voltage as long as V+ to V- is 1.8V to 5.5V, with a 0.1µF bypass capacitor if not grounded. |
| 3 | +IN | input | Non-inverting input of the amplifier, with ESD diodes to each supply so input current must be limited to under 10mA if it exceeds the rails by more than 500mV. |
| 4 | -IN | input | Inverting input of the amplifier, with ESD diodes to each supply so input current must be limited to under 10mA if it exceeds the rails by more than 500mV. |
| 5 | V+ | power_in | Positive power supply, typically 1.8V to 5.5V, with a 0.1µF bypass capacitor placed as close to the part as possible. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HTCSEMI |
| Package | SOT-23-5 |
| Category | Operational Amplifier/Comparator |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `HT8603ARTZ`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `ht8603artz-etched.step` / `ht8603artz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ht8603artz.step` / `ht8603artz.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HTCSEMI datasheet](docs/ht8603artz-datasheet.pdf) (17 pp, sha256 `0106f7fb0efe486c`, retrieved 2026-10-27, 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/ht8603artz-datasheet.pdf)