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Contents

README

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ZXL3401A

Zhengxin(正芯) · IC · SOT-23

ZXL3401A from Zhengxin(正芯), in a SOT-23. 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; gate-source voltage limit is ±12 V, with threshold VGS(th) of -0.6 V min, -0.9 V typ and -1.4 V max at VDS=VGS, ID=-250µA.
2 S passive Source; continuous drain current is -4.4 A at TA=25℃ and body-diode continuous current is -4.4 A max.
3 D passive Drain; drain-source voltage is rated -30 V, with RDS(ON) below 55 mΩ at VGS=-10 V and pulsed drain current of -27 A.

Key specifications

Parameter Value
Manufacturer Zhengxin(正芯)
Package SOT-23
Category
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 1
Gate-source Voltage VGS -12 12 V 1
Drain Current ID -4.4 A TA=25℃ 1
Drain Current ID -3.5 A TA=70℃ 1
Pulsed Drain Current IDM/ISM -27 A 1
Total Power Dissipation PD 1.2 W TA=25℃ 1
Total Power Dissipation PD 0.8 W TA=70℃ 1
Thermal Resistance Junction-to-Ambient RθJA 104 ℃/ W 1
Junction and Storage Temperature Range TJ ,TSTG -55 150 ℃ 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 Current IGSS -100 100 nA VGS=±12V, VDS=0V 2
Gate Threshold Voltage VGS(th) -0.6 -0.9 -1.4 V VDS= VGS, ID=-250μA 2
Static Drain-Source On-Resistance RDS(ON) 40 55 mΩ VGS=-10V, ID=-4.4A 2
Static Drain-Source On-Resistance RDS(ON) 47 66 mΩ VGS=-4.5V, ID=-4A 2
Static Drain-Source On-Resistance RDS(ON) 60 94 mΩ VGS=-2.5V, ID=-2A 2
Diode Forward Voltage VSD -1.2 V IS=-4.4A,VGS=0V 2
Maximum Body-Diode Continuous Current IS -4.4 A 2
Gate resistance RG 15 Ω f=1MHz, Open drain 2
Forward Transconductance gFS 15 S VDS= -5V, ID=-15A 2
Input Capacitance Ciss 1040 pF VDS=-15V,VGS=0V,f=1MHZ 2
Output Capacitance Coss 80 pF 2
Reverse Transfer Capacitance Crss 68 pF 2
Total Gate Charge Qg 22 nC VGS=-10V,VDS=-15V,ID=-4.4A 2
Gate-Source Charge Qgs 3.28 nC 2
Gate-Drain Charge Qgd 2.11 nC 2
Reverse Recovery Charge Qrr 10 nC IF=-4.4A, di/dt=100A/us 2
Reverse Recovery Time trr 16 ns 2
Turn-on Delay Time tD(on) 4.4 ns VGS=-10V, VDS=-15V, ID=4.4A, RGEN=3Ω 2
Turn-on Rise Time tr 26 ns 2
Turn-off Delay Time tD(off) 49.2 ns 2
Turn-off fall Time tf 42.8 ns 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper mounting surface of the drain pins. RθJC is guaranteed by design, while RθJA is determined by the board design. The maximum rating presented here is based on mounting on a 1 in 2 pad of 2oz copper. 2

CAD (KiCad official)

  • Symbol: ZXL3401A
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: zxl3401a-etched.step / zxl3401a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); zxl3401a.step / zxl3401a.glb are the bare package body.

Provenance

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

  • Datasheet: Zhengxin(正芯) datasheet (6 pp, sha256 8279b2163a0fed61, retrieved 2026-11-07, 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