# RS8912XH

**Jiangsu RUNIC Tech** · Comparators · SOT-23-6

RS8912XH from Jiangsu RUNIC Tech, in a SOT-23-6. 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 | Comparator push-pull output; the absolute output pin range is (V-)-0.5 V to (V+)+0.5 V, and output short-circuit is continuous with output current limited to ±10 mA for signals beyond the rails. |
| 2 | V- | power_in | Negative (lowest) power supply; single-supply operation is specified from 2.3 V to 5.5V with V- = 0 V in the test conditions. |
| 3 | +IN | input | Noninverting input with common-mode range of (V-)-0.1 V to (V+)+0.1 V over -40 °C to 85 °C, and input pin range of (V-)-0.5 V to (V+)+0.5 V with input current limited to 10 mA beyond the rails. |
| 4 | -IN | input | Inverting input with common-mode range of (V-)-0.1 V to (V+)+0.1 V over -40 °C to 85 °C, and input pin range of (V-)-0.5 V to (V+)+0.5 V with input current limited to 10 mA beyond the rails. |
| 5 | REF | output | Integrated 1.2 V voltage reference output (1.176 V to 1.224 V at IREF = 0 mA), which can provide up to 350 µA (TYP) output current at 5 V and is stable with up to 10 nF capacitive load. |
| 6 | V+ | power_in | Positive (highest) power supply; supply voltage Vs = (V+) - (V-) is 2.3 V to 5.5 V in single-supply operation with an absolute maximum of 7 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC Tech |
| Package | SOT-23-6 |
| Category | Amplifiers/Comparators |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Signal input pin current |  | -10 |  | 10 | mA |  | 3 |
| Signal output pin current |  | -10 |  | 10 | mA |  | 3 |
| Operating range, free-air temperature | TA | -40 |  | 85 | °C |  | 3 |
| Junction temperature | TJ |  |  | 150 | °C |  | 3 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 3 |
| Supply voltage, Vs=(V+)-(V-) | Vs |  |  | 7 | V |  | 3 |
| ESD Human-body model (HBM) | V(ESD) | -3000 |  | 3000 | V |  | 3 |
| ESD Machine Model (MM) |  | -200 |  | 200 | V |  | 3 |
| Supply voltage, single-supply | Vs | 2.3 |  | 5.5 | V | Single-supply | 3 |
| Supply voltage, dual-supply (magnitude) | Vs | 1.15 |  | 2.75 | V | Dual-supply, printed as ±1.15 / ±2.75 | 3 |
| Junction-to-ambient thermal resistance | RϴJA |  | 214.7 |  | °C/W | SOT23-6 | 3 |
| Junction-to-case (top) thermal resistance | RϴJC(top) |  | 127.1 |  | °C/W | SOT23-6 | 3 |
| Junction-to-board thermal resistance | RϴJB |  | 60 |  | °C/W | SOT23-6 | 3 |
| Junction-to-top characterization parameter | ΨJT |  | 33.4 |  | °C/W | SOT23-6 | 3 |
| Junction-to-board characterization parameter | ΨJB |  | 59.8 |  | °C/W | SOT23-6 | 3 |
| Operating Voltage Range | Vs | 2.3 |  | 5.5 | V |  | 5 |
| Quiescent Current (VS=2.3V table) | IQ |  | 3.5 | 8 | μA |  | 5 |
| Input Offset Voltage (VS=2.3V table) | Vos |  | 1 | 5 | mV | VCM =0V | 5 |
| Input Bias Current (VS=2.3V table) | IB |  | 1 | 10 | pA |  | 5 |
| Output Swing From Upper Rail (VS=2.3V table) | VOH | 2.208 | 2.237 |  | V | Io=25uA | 5 |
| Output Swing From Upper Rail (VS=2.3V table) | VOH | 2.011 | 2.095 |  | V | Io=95uA | 5 |
| Output Swing From Lower Rail (VS=2.3V table) | VOL |  | 55 | 80 | mV | Io=25uA | 5 |
| Output Swing From Lower Rail (VS=2.3V table) | VOL |  | 205 | 289 | mV | Io=95uA | 5 |
| Short Circuit Sink Current (VS=2.3V table) | ISC | -1 | -0.62 |  | mA | Vs=2.3V | 5 |
| Short Circuit Source Current (VS=2.3V table) | ISC | 0.57 | 1 |  | mA | Vs=2.3V | 5 |
| Reference Voltage (VS=2.3V table) | VREF | 1.176 | 1.2 | 1.224 | V | IREF=0mA | 5 |
| Reference Output Current (Source) (VS=2.3V table) |  | 60 | 80 |  | uA |  | 5 |
| Quiescent Current (VS=5V table) | IQ |  | 4.85 | 10 | μA |  | 6 |
| Input Offset Voltage (VS=5V table) | Vos |  | 1 | 3.5 | mV | VCM =0V | 6 |
| Input Bias Current (VS=5V table) | IB |  | 1 | 10 | pA |  | 6 |
| Output Swing From Upper Rail (VS=5V table) | VOH | 4.915 | 4.935 |  | V | Io=25uA | 6 |
| Output Swing From Upper Rail (VS=5V table) | VOH | 4.72 | 4.785 |  | V | Io=95uA | 6 |
| Output Swing From Lower Rail (VS=5V table) | VOL |  | 55 | 72 | mV | Io=25uA | 6 |
| Output Swing From Lower Rail (VS=5V table) | VOL |  | 215 | 280 | mV | Io=95uA | 6 |
| Short Circuit Sink Current (VS=5V table) | ISC | -2.25 | -2.2 |  | mA | Vs=5V | 6 |
| Short Circuit Source Current (VS=5V table) | ISC | 2.15 | 2.23 |  | mA | Vs=5V | 6 |
| Reference Voltage (VS=5V table) | VREF | 1.176 | 1.2 | 1.224 | V | IREF=0mA | 6 |
| Reference Output Current (Source) (VS=5V table) |  | 200 | 350 |  | uA |  | 6 |

## CAD (KiCad official)

- Symbol: `RS8912XH`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `rs8912xh-etched.step` / `rs8912xh-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rs8912xh.step` / `rs8912xh.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Jiangsu RUNIC Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944308930293760) (11 pp, sha256 `14992c1d9230611c`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/rs8912xh-datasheet.pdf)