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CI30N120SM4

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Tokmas MOSFETs, TO-247-4L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CI30N120SM4

Tokmas · MOSFETs · TO-247-4L

CI30N120SM4 from Tokmas, in a TO-247-4L. 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 D passive Drain terminal of the SiC MOSFET; the datasheet rates V(BR)DSS at 1200 V minimum with VGS=0V and ID=100μA.
2 S passive Power source terminal of the SiC MOSFET; the datasheet rates continuous body diode forward current at 28 A with TC=25˚C.
3 KS passive Kelvin source terminal labeled KS on the package diagram; the datasheet does not state its separate function or limits.
4 G input Gate terminal of the SiC MOSFET; the datasheet gives threshold voltage 2.0 V to 4.0 V at 25˚C and switching drive of VGS=-5/20 V.

Key specifications

Parameter Value
Manufacturer Tokmas
Package TO-247-4L
Category Transistors/Thyristors
Pins 4

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 Breakdown Voltage V(BR)DSS 1200 V VGS=0V,ID=100μA 2
Gate Threshold Voltage VGS(th) 2 2.4 4 V VGS= VDS, IDS=5mA,TC=25˚C 2
Gate Threshold Voltage VGS(th) 1.73 V VGS= VDS, IDS=5mA,TC=150˚C 2
Zero Gate Voltage Drain Current IDSS 1 100 μA VDS= 1200V, VGS=0V 2
Gate-Source Leakage Current IGSS 20 200 nA VGS=20V, VDS= 0V 2
Drain-Source on-state Resistance RDS(on) 80 98 mΩ VGS=20V, ID=20A, TC=25˚C 2
Drain-Source on-state Resistance RDS(on) 120 mΩ VGS=20V, ID=20A, TC=150˚C 2
Transconductance gfs 7 S VGS = 20 V, ID = 20A, TJ = 25 ˚C 2
Transconductance gfs 6.6 S VGS = 20 V, ID = 20A, TJ = 150 ˚C 2
Input Capacitance Ciss 2016 pF VGS=0V, VDS=1000 V, f=1MHz VAC=25 mV 2
Output Capacitance Coss 72.6 pF VGS=0V, VDS=1000 V, f=1MHz VAC=25 mV 2
Reverse Transfer Capacitance Crss 17.9 pF VGS=0V, VDS=1000 V, f=1MHz VAC=25 mV 2
Turn-On Switching Energy EON 180 μJ VDS=800V, VGS=-5/20V, ID= 20A, RG(ext) = 5Ω, L= 142 μH 2
Turn-Off Switching Energy EOFF 70 μJ VDS=800V, VGS=-5/20V, ID= 20A, RG(ext) = 5Ω, L= 142 μH 2
Turn-On Delay Time td(on) 23 ns VDD=800V, VGS=-5/20 V, ID = 20A, RG(ext) = 5 Ω , RL=40Ω , Timing relative to VDS 2
Rise Time tr 60 ns VDD=800V, VGS=-5/20 V, ID = 20A, RG(ext) = 5 Ω , RL=40Ω , Timing relative to VDS 2
Turn-Off Delay Time td(off) 17 ns VDD=800V, VGS=-5/20 V, ID = 20A, RG(ext) = 5 Ω , RL=40Ω , Timing relative to VDS 2
Fall Time tf 12 ns VDD=800V, VGS=-5/20 V, ID = 20A, RG(ext) = 5 Ω , RL=40Ω , Timing relative to VDS 2
Internal Gate Resistance RG(int) 2.8 Ω f=1 MHz, VAC=25mV 2
Gate to Source Charge Qgs 23 nC VDD=800V, VGS=-5/20 V, ID = 20A 2
Gate to Drain Charge Qgd 26 nC VDD=800V, VGS=-5/20 V, ID = 20A 2
Total Gate Charge Qg 85 nC VDD=800V, VGS=-5/20 V, ID = 20A 2
Diode Forward Voltage VSD 3.5 V VGS = -5V, ISD = 10 A, TJ = 25 °C 2
Diode Forward Voltage VSD 3.3 V VGS =- 5V, ISD = 10 A, TJ = 150 °C 2
Continuous Diode Forward Current IS 28 A TC = 25˚C 2
Reverse Recovery time trr 18 ns VGS = -5V, ISD = 20 A, VR= 800V, dif/dt=1200A/μs 2
Reverse Recovery Charge Qrr 80 nC VGS = -5V, ISD = 20 A, VR= 800V, dif/dt=1200A/μs 2
Peak Reverse Recovery Current Irrm 8 A 2
Thermal Resistance from Junction to Case RθJC 0.75 ℃/W Fig. 11 2
Thermal Resistance From Junction to Ambient RθJA 35 ℃/W 2

CAD (KiCad official)

  • Symbol: CI30N120SM4
  • Footprint: Package_TO_SOT_THT:TO-247-4_Vertical
  • 3D model: TO-247-4L (KiCad packages3D, STEP)
  • 3D model files: ci30n120sm4-etched.step / ci30n120sm4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ci30n120sm4.step / ci30n120sm4.glb are the bare package body.

Provenance

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

  • Datasheet: Tokmas datasheet (5 pp, sha256 0c77ada42e667103, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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