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CPC3909CTR

Public Made by Adom

by adom

Littelfuse/IXYS MOSFETs, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CPC3909CTR

Littelfuse/IXYS · MOSFETs · SOT-89

CPC3909CTR from Littelfuse/IXYS, in a SOT-89. 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 GATE input Gate of the N-channel depletion-mode FET; VGS(off) is -0.9 V to -3.1 V, absolute maximum VGS is 15 V and gate leakage is at most 100 nA at VGS=15 V.
2 DRAIN passive Drain of the FET, rated for 400 V drain-to-source (V(BR)DSX), with RDS(on) of 4.5 ohm typical and 9 ohm maximum at VGS=0 V and IDS=300 mA.
3 SOURCE passive Source of the FET, with drain current of at least 300 mA at VGS=0 V and VDS=5 V.

Key specifications

Parameter Value
Manufacturer Littelfuse/IXYS
Package SOT-89
Category Triode/MOS Tube/Transistor
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-to-Source Off Voltage VGS(off) -0.9 -3.1 V ID=2A, VDS=10V, VDS=100V 2
Drain Current ID 300 mA VGS=0V, VDS=5V 2
Drain-to-Source Leakage Current IDS(off) 20 nA VGS=-5V, VDS=210V 2
Drain-to-Source Leakage Current IDS(off) 1 A VGS=-5V, VDS=400V 2
On-Resistance RDS(on) 4.5 9 VGS=0V, IDS=300mA 2
Gate Leakage Current IGSS 100 nA VGS=15V 2
Drain-to-Source Voltage V(BR)DSX 400 V 2
Gate-to-Source Voltage VGS 15 V 2
Total Package Dissipation SOT-89 1.1 W Mounted on 1"x1" FR4 board 2
Operational Temperature -40 110 oC 2
Storage Temperature -40 125 oC 2
Thermal Resistance Junction to Case SOT-89 RJC 50 ºC/W 2
Thermal Resistance Junction to Ambient SOT-89 RJA 90 ºC/W 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
housing PC Circuits Division classified all of its plastic encapsulated devices for moisture sensitivity according to the latest version of the joint industry standard, IPC/JEDEC J-STD-020, in force at the time 3

CAD (KiCad official)

  • Symbol: CPC3909CTR
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: cpc3909ctr-etched.step / cpc3909ctr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cpc3909ctr.step / cpc3909ctr.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse/IXYS datasheet (5 pp, sha256 6a8e7761b2ec6bf9, retrieved 2026-11-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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