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SE138U

Public Made by Adom

by adom

SINO IC MOSFETs, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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SE138U

SINO IC · MOSFETs · SOT-323

SE138U from SINO IC, in a SOT-323. 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 of the N-channel MOSFET, with a gate-source voltage rating of ±20 V and a gate threshold of 0.8 V min, 1.3 V typ and 1.5 V max at VDS=VGS, ID=1 mA.
2 S passive Source of the N-channel MOSFET, with a body diode to the drain rated for 0.22 A source current and 0.8 V typ, 1.4 V max forward voltage.
3 D passive Drain of the N-channel MOSFET, rated for VDS 60 V, 0.22 A continuous and 0.88 A pulsed drain current, with RDS(ON) of 0.7 Ω at VGS=10 V.

Key specifications

Parameter Value
Manufacturer SINO IC
Package SOT-323
Category Transistors/Thyristors
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
Gate-Source Voltage VGS -20 20 V 1
Drain Current, Continuous ID 0.22 A Continuous 1
Drain Current, Pulsed ID 0.88 A Pulsed 1
Total Power Dissipation PD 0.36 W TA=25℃ 1
Operating Junction Temperature Range TJ -55 150 ℃ 1
Thermal Resistance Junction to Ambient RθJA 350 ℃/W 1
Drain to Source Leakage Current IDSS 100 nA VDS= 30V, VGS=0V 2
Gate-Body Leakage Current IGSS 100 nA VGS=20V 2
Gate Threshold Voltage VGS(th) 0.8 1.3 1.5 V VDS= VGS, ID=1mA 2
Static Drain-Source On-Resistance RDS(ON) 0.7 Ω VGS=10V, ID=0.22A 2
Static Drain-Source On-Resistance RDS(ON) 1 Ω VGS=4.5V, ID=0.22A 2
Input Capacitance Ciss 27 pF VGS=0V, VDS=25V, f=1MHz 2
Output Capacitance Coss 13 pF VGS=0V, VDS=25V, f=1MHz 2
Reverse Transfer Capacitance Crss 6 pF VGS=0V, VDS=25V, f=1MHz 2
Total Gate Charge Qg 1.7 2.4 nC VGS=10V, VDS=25V, ID=0.22A 2
Gate Source Charge Qgs 0.1 nC 2
Gate Drain Charge Qgd 0.4 nC 2
Turn-On Delay Time td(on) 2.5 5 ns VGS=10V, VDS=30V, RGEN=6Ω, ID=0.29A 2
Turn-Off Delay Time td(off) 20 36 ns 2
Turn-On Rise Time td(r) 9 18 ns 2
Turn-Off Fall Time td(f) 7 14 ns 2
Source Current IS 0.22 A IF=0.44A, VDS=0V, dI/dt=100A/μs 2
Diode Forward Voltage VSD 0.8 1.4 V 2

CAD (KiCad official)

  • Symbol: SE138U
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: se138u-etched.step / se138u-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); se138u.step / se138u.glb are the bare package body.

Provenance

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

  • Datasheet: SINO IC datasheet (6 pp, sha256 e9c6b133284cce84, retrieved 2026-10-17, 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