# CH913TB

**COSEMITECH** · Hall Switches · TO-92S

CH913TB from COSEMITECH, in a TO-92S. 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 | VDD | power_in | Supply voltage pin, specified for operation from 1.8 V to 5.25 V with an absolute maximum VDD of 6 V. |
| 2 | GND | power_in | Ground pin. |
| 3 | OUT | output | Open-drain output that is pulled low when the field exceeds BOP and can sink 1 mA, with an absolute maximum output current of 3 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | COSEMITECH |
| Package | TO-92S |
| Category | Magnetic Sensors |
| 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 | VCC | 1.8 |  | 5.25 | V | Operating, TJ < 165°C | 5 |
| CH913 Supply Current (awake) | ICC(awake) |  | 1.1 | 1.6 | mA | During awake period, TA = 25°C, VCC=3.3V | 5 |
| Output low voltage (on) | VOL |  | 0.1 | 0.2 | V | IOUT = 1 mA | 5 |
| CH913 Awake time | Tawake |  | 40 | 60 | us | note 4 | 5 |
| CH913 Period | Tperiod |  | 50 | 75 | ms | note 4 | 5 |
| CH913 Duty cycle | D.C. |  |  | 0.08 | % |  | 5 |
| Output leakage current | IOFF |  |  | 1 | μA | VOUT = 5.5 V; Switch state = Off | 5 |
| Operate point | Bop | 20 | 35 | 55 | Gauss | VDD = 1.8V to 5.25V; TA = -40°C to 150°C | 5 |
| Release point | Brp | 10 | 25 | 50 | Gauss | VDD = 1.8V to 5.25V; TA = -40°C to 150°C | 5 |
| Supply Voltage (absolute maximum) | VDD |  |  | 6 | V |  | 3 |
| VDD Reverse Voltage | VRDD | -0.3 |  |  | V |  | 3 |
| Supply Current (absolute maximum) | IDD |  |  | 2 | mA |  | 3 |
| Output Voltage (absolute minimum) | VOUT | -0.3 |  |  | V |  | 3 |
| Output Current (absolute maximum) | IOUT |  |  | 3 | mA |  | 3 |
| Operating Ambient Temperature | TA | -40 |  | 150 | °C |  | 3 |
| Storage Temperature | TS | -50 |  | 150 | °C |  | 3 |
| Junction temperature | TJ | -50 |  | 165 | °C |  | 3 |
| ESD, all pins, HBM |  | -8000 |  | 8000 | V | HBM per AEC-Q100-002 | 4 |
| ESD, all pins, MM |  | -400 |  | 400 | V | MM per AEC-Q100-003 | 4 |
| ESD, all pins, CDM |  | -750 |  | 750 | V | CDM per AEC-Q100-011 | 4 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | Two package styles provide a magnetically optimized package for most applications, SO-T23 and TO￾92S. Each package type is lead (Pb) free (suffix, -T), with a 100% matte-tin-plated leadframe. Cosemite | 1 |

## CAD (KiCad official)

- Symbol: `CH913TB`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files: `ch913tb-etched.step` / `ch913tb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ch913tb.step` / `ch913tb.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [COSEMITECH datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944996062281728) (9 pp, sha256 `8cfcc827ab923dba`, 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/ch913tb-datasheet.pdf)