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Contents

Pinout
Key specifications
Electrical characteristics
CAD (KiCad official)
Provenance

README

markdown

FH3400BL

XIN FEI HONG · MOSFETs · SOT-23-3L

FH3400BL from XIN FEI HONG, in a SOT-23-3L. 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	G	input	Gate; controls the channel, with an absolute maximum gate-source voltage of ±12 V and a threshold of 0.6 V min to 1.4 V max at ID=250µA.
2	S	passive	Source; the MOSFET source terminal, with a maximum diode forward current of 2 A.
3	D	passive	Drain; rated for 30 V drain-source voltage, 5.8 A continuous current and 30 A pulsed current.

Key specifications

Parameter	Value
Manufacturer	XIN FEI HONG
Package	SOT-23-3L
Category	Transistors
Pins	3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Drain-source voltage	VDS			30	V	TA=25℃	1
Gate-source voltage	VGS	-12		12	V	TA=25℃	1
Drain current-continuous	ID			5.8	A	@Tj=125℃	1
Drain current-pulse	IDM			30	A	TA=25℃	1
Drain-source diode forward current	Is			2	A	TA=25℃	1
Maximum power dissipation	PD			1.4	W	TA=25℃	1
Operating junction temperature range	Tj	-55		150	℃		1
Thermal resistance junction-to-ambient	Rth JA			100	℃/W		1
Drain-source breakdown voltage	BVDSS	30			V	VGS=0V, ID=250µA	2
Zero gate voltage drain current	IDSS			1	µA	VDS=30V, VGS=0V	2
Gate-body leakage	IGSS	-100		100	nA	VDS=0V, VGS=±12V	2
Gate threshold voltage	VGS(th)	0.6	0.9	1.4	V	VDS=VGS, ID=250µA	2
Drain-source on-state resistance	RDS(ON)		19	26	mΩ	VGS=10V, ID=4A	2
Drain-source on-state resistance	RDS(ON)		23	32	mΩ	VGS=4.5V, ID=4A	2
Drain-source on-state resistance	RDS(ON)		35	49	mΩ	VGS=2.5V, ID=2A	2
Diode forward voltage	VSD		0.76	1.16	V	VGS=0V, Is=1A	2
Forward transconductance	gfs		33		S	VGS=5V, ID=5.8A	2
Input capacitance	CISS		610		pF	VDS=15V, VGS=0V, f=1.0MHz	2
Output capacitance	COSS		76		pF	VDS=15V, VGS=0V, f=1.0MHz	2
Reverse transfer capacitance	CRSS		55		pF	VDS=15V, VGS=0V, f=1.0MHz	2
Turn-on delay time	tD(ON)		3		ns	VDS=15V, VGS=10V, RL=2.6 ohm, RGEN=3ohm	2
Rise time	tr		2.5		ns	VDS=15V, VGS=10V, RL=2.6 ohm, RGEN=3ohm	2
Turn-off delay time	tD(OFF)		25		ns	VDS=15V, VGS=10V, RL=2.6 ohm, RGEN=3ohm	2
Fall time	tf		4		ns	VDS=15V, VGS=10V, RL=2.6 ohm, RGEN=3ohm	2
Total gate charge	Qg		6		nC	VDS=15V, ID=5.8A, VGS=4.5V	2
Gate-source charge	Qgs		1.3		nC	VDS=15V, ID=5.8A, VGS=4.5V	2
Gate-drain charge	Qgd		1.8		nC	VDS=15V, ID=5.8A, VGS=4.5V	2

CAD (KiCad official)

Symbol: FH3400BL
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3L (KiCad packages3D, STEP)
3D model files: fh3400bl-etched.step / fh3400bl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fh3400bl.step / fh3400bl.glb are the bare package body.

Provenance

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

Datasheet: XIN FEI HONG datasheet (6 pp, sha256 46ad1b32bfa7e029, retrieved 2026-10-22, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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