FH9261-DBG from XIN FEI HONG, 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	OD	output	Discharge control MOSFET gate drive output. Drives the gate of the external N-MOSFET that controls the discharge path; output high (~VDD-0.02V) enables discharge, output low (~0.1V) disables it during overdischarge, discharge overcurrent, or load short-circuit conditions.
2	CS	input	Overcurrent detection input / charger detection terminal. Senses the voltage drop across the pack negative path to detect discharge overcurrent (VDIP=50mV typ), load short-circuit (VSIP=0.58V typ), and charge overcurrent (VCIP=-50mV typ). High-voltage tolerant to VDD+25V for reverse-connected charger protection.
3	OC	output	Charge control MOSFET gate drive output. Drives the gate of the external N-MOSFET that controls the charge path; output high (~VDD-0.02V) enables charging, output low (~0.1V) disables it during overcharge or charge overcurrent conditions. High-voltage tolerant to VDD+25V for reverse-connected charger protection.
4	NC	unconnected	No connection. Leave floating or tie to any convenient net; no internal bond.
5	VDD	power_in	Positive power supply input, connected to battery positive through R1 (100Ω typ) with C1 (0.1μF typ) to VSS. Operating range 1.5V to 8V; absolute max VSS-0.3V to VSS+10V. Typical operating current 3.0μA at VDD=3.9V.
6	VSS	power_in	Ground / negative power supply input, connected directly to battery negative terminal.

Key specifications

Parameter	Value
Manufacturer	XIN FEI HONG
Package	SOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

FH9261-DBG

CAD (KiCad official)

Symbol: FH9261-DBG
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`fh9261-dbg.step`	97 KB	You want the bare part, or you mark your own boards.
`fh9261-dbg-etched.step`	1.9 MB	You want the part with `FH9261-DBG` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 462 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: XIN FEI HONG datasheet (18 pp, sha256 3215be66c4cfc32f, 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