# CJ6211B18M

**Changjing** · Pre-ordered transistors · SOT-23-5L

CJ6211B18M from Changjing, in a SOT-23-5L. 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 | VIN | power_in | Input to the device; the recommended supply voltage at VIN is 1.8 V to 6.0 V, and the absolute maximum input voltage is -0.3 V to 7 V. |
| 2 | VSS | power_in | Regulator ground. |
| 3 | CE | input | Enable pin: logic high enables and logic low disables the regulator; do not float this pin, and connect CE to IN if the function is not used (CE high minimum 1.5 V up to VIN, CE low maximum 0.3 V). |
| 4 | NC | unconnected | Internal not connected. |
| 5 | VOUT | power_out | Output of the regulator; output voltage is set by the part's 1.8 V option (VOUT = 1.8 V) with output current rated at 700 mA maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23-5L |
| Category | Triode/MOS Tube/Transistor |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `CJ6211B18M`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files: `cj6211b18m-etched.step` / `cj6211b18m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cj6211b18m.step` / `cj6211b18m.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](docs/cj6211b18m-datasheet.pdf) (12 pp, sha256 `b591ab5b7d931710`, retrieved 2026-10-22, 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/cj6211b18m-datasheet.pdf)