# CBM810JST3

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

CBM810JST3 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; all signals are referenced to ground (0 V). |
| 2 | RESET | output | Push-pull active-high reset output that asserts 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; the reset threshold is set by the part suffix, which is 4.00 V typical for CBM810J. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Corebai Microelectronics |
| Package | SOT-23-3 |
| Category | Power Management |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage range | VCC | 1 |  | 5.5 | V |  | 4 |
| Reset threshold | VRST | 3.93 | 4 | 4.06 | V | CBM803J/CBM809J/CBM810J | 4 |
| Reset pulse width |  | 140 | 240 | 460 | ms |  | 4 |
| Supply current |  |  | 24 | 35 | μA | VCC < 5.5V, CBM8XXL/M/J | 4 |
| RESET output low voltage | VOL |  |  | 0.4 | V | VCC = VTH min, ISINK = 3.2 mA, CBM810L/M/J | 5 |
| Supply voltage (VCC) absolute maximum | VCC | -0.3 |  | 6 | V |  | 5 |
| Input current (VCC) |  |  |  | 20 | mA |  | 5 |
| Output current (RESET, RESET) |  |  |  | 20 | mA |  | 5 |
| VCC rise rate |  |  |  | 100 | V/μs |  | 5 |
| Storage temperature range |  | -65 |  | 150 | ℃ |  | 5 |
| Lead temperature (soldering, 10 s) |  |  |  | 300 | ℃ | soldering, 10 sec | 5 |
| Vapor phase soldering (60 s) |  |  |  | 215 | ℃ | vapor phase, 60 sec | 5 |
| Infrared soldering (15 s) |  |  |  | 220 | ℃ | infrared, 15 sec | 5 |
| Operating temperature range |  | -40 |  | 85 | ℃ | ordering temperature range for CBM810JST3 | 12 |
| Thermal resistance junction-to-ambient | θJA |  | 270 |  | °C/W | SOT-23 package | 5 |

## CAD (KiCad official)

- Symbol: `CBM810JST3`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `cbm810jst3-etched.step` / `cbm810jst3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cbm810jst3.step` / `cbm810jst3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Corebai Microelectronics datasheet](docs/cbm810jst3-datasheet.pdf) (13 pp, sha256 `8c408542a622788f`, 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/cbm810jst3-datasheet.pdf)