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)

Provenance

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

Datasheet: BL Shanghai Belling datasheet (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