# CBM810RST3

**Corebai Microelectronics** · Monitors & Reset Circuits · SOT-23-3

CBM810RST3 from Corebai Microelectronics, in a SOT-23-3. 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 | GND | power_in | Ground reference pin; all signals are referenced to ground (0 V). |
| 2 | RESET | output | Active-high push-pull reset output that is held high while VCC is below the reset threshold and stays asserted for 240 ms (typical) after VCC rises above the threshold. |
| 3 | VCC | power_in | Monitored supply voltage input, with an operating supply range of 1.0 V to 5.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Corebai Microelectronics |
| Package | SOT-23-3 |
| Category | Power Management ICs |
| Pins | 3 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reset threshold voltage | VRST | 2.59 | 2.63 | 2.66 | V | CBM803R/CBM809R/CBM810R | 4 |
| Reset pulse width |  | 140 | 240 | 460 | ms |  | 4 |
| Supply voltage range |  | 1 |  | 5.5 | V |  | 4 |
| Supply current |  |  | 17 | 30 | μA | VCC < 3.6V, CBM8XXR/S/T/Z | 4 |
| RESET output low voltage | VOL |  |  | 0.3 | V | VCC = VTH min, ISINK = 1.2 mA, CBM810R/S/T/Z | 5 |
| RESET output low voltage | VOL |  |  | 0.3 | V | VCC > 1.0 V, ISINK = 50 μA | 4 |
| VCC absolute maximum | VCC | -0.3 |  | 6 | V |  | 5 |
| RESET push-pull absolute maximum |  | -0.3 |  |  | V | RESET (Push-Pull), upper limit printed as VCC+0.5V | 5 |
| RESET open-drain absolute maximum |  | -0.3 |  | 6 | V | RESET (open drain) | 5 |
| Input current (VCC) |  |  |  | 20 | mA |  | 5 |
| Output current (RESET, RESET) |  |  |  | 20 | mA |  | 5 |
| VCC rise rate |  |  |  | 100 | V/μs |  | 5 |
| Thermal resistance junction-to-ambient | θJA |  | 270 |  | °C/W | SOT-23 | 5 |
| Lead temperature (soldering, 10 s) |  |  |  | 300 | ℃ | soldering, 10 sec | 5 |
| Vapor phase reflow (60 s) |  |  |  | 215 | ℃ | vapor phase, 60 s | 5 |
| Infrared reflow (15 s) |  |  |  | 220 | ℃ | infrared, 15 sec | 5 |
| Storage temperature range |  | -65 |  | 150 | ℃ |  | 5 |
| Operating temperature range | TA | -40 |  | 85 | ℃ | ordering temperature range | 12 |

## CAD (KiCad official)

- Symbol: `CBM810RST3`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `cbm810rst3-etched.step` / `cbm810rst3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cbm810rst3.step` / `cbm810rst3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Corebai Microelectronics datasheet](docs/cbm810rst3-datasheet.pdf) (13 pp, sha256 `185a6d7df019adba`, retrieved 2026-10-27, 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-haiku-5-5` (text), consensus `off` (skipped (clean text read)), 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/cbm810rst3-datasheet.pdf)