# BL8023FCB6TR

**BL Shanghai Belling** · Relay / Coil Drivers · SOT-23-6

BL8023FCB6TR from BL Shanghai Belling, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OB | output | Output B. Drives one terminal of the magnetic latching relay coil. High-side/low-side push-pull output that is high-impedance when both inputs are equal (00 or 11). Paired with OA to bi-directionally drive the coil. |
| 2 | GND | power_in | Device ground reference. |
| 3 | A | input | Input A logic control pin. Input high threshold ~2V (Vin=12V); equivalent input resistance ~500kΩ. When A=1, B=0 the relay is driven ON (forward); other combinations produce either reverse drive or high-impedance hold state. |
| 4 | OA | output | Output A. Drives the opposite terminal of the magnetic latching relay coil. Push-pull output paired with OB; high-impedance when inputs A and B are equal. |
| 5 | VIN | power_in | Supply input voltage. Operating range 5V to 36V (absolute max 40V). Quiescent current <1uA typical. |
| 6 | B | input | Input B logic control pin. Input high threshold ~2V; equivalent input resistance ~500kΩ. When B=1, A=0 the relay is driven OFF (reverse); when A=B the outputs are high-impedance (hold). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-23-6 |
| Category | Motor Driver ICs |
| Pins | 6 |

## Ordering variants

Same part, different packaging or reel option.

- `BL8023FCB6TR`
- `BL8023FCB6TRCD8TR`

## CAD (KiCad official)

- Symbol: `BL8023FCB6TR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `bl8023fcb6tr-etched.step` / `bl8023fcb6tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bl8023fcb6tr.step` / `bl8023fcb6tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BL Shanghai Belling datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202929656680448) (6 pp, sha256 `c05b6fe69ab8145d`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bl8023fcb6tr-datasheet.pdf)