BL8023DCB6TR 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. Bi-directional relay coil driver output B. Connects to one terminal of the magnetic latching relay coil; high-impedance when both inputs are equal, driven high/low per the logic table for forward/reverse coil energization.
2	GND	power_in	Ground reference for the device. Connect to system ground / return of the input supply (VIN).
3	A	input	Input A. Logic control input; high-level threshold Vth=3V (typ. at Vin=12V), equivalent input resistance ~500 kOhm. Recommended drive pulse width 100 ms. Combined with Input B per the logic table to select forward drive / backward drive / hold.
4	OA	output	Output A. Bi-directional relay coil driver output A. Connects to the opposite terminal of the magnetic latching relay coil from OB; high-impedance when both inputs are equal, driven high/low per the logic table for forward/reverse coil energization.
5	VIN	power_in	Supply input voltage. Operating range 5 V to 36 V (40 V absolute max). Quiescent current typically <1 uA. A current-limiting resistor Rs may be inserted in series when Vin > 20V.
6	B	input	Input B. Logic control input; high-level threshold Vth=3V (typ. at Vin=12V), equivalent input resistance ~500 kOhm. Recommended drive pulse width 100 ms. Combined with Input A per the logic table to select forward drive / backward drive / 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.

BL8023DCB6TR

CAD (KiCad official)

Symbol: BL8023DCB6TR
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 (5 pp, sha256 d74263adf01657a7, 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