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IRFI644GPBF

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Vishay Intertech MOSFETs, TO-220F-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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IRFI644GPBF

Vishay Intertech · MOSFETs · TO-220F-3

IRFI644GPBF from Vishay Intertech, in a TO-220F-3. 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 ±20 V with a threshold of 2.0 V to 4.0 V (VDS = VGS, ID = 250 μA).
2 D passive Drain, connected to the tab; drain-source voltage is 250 V max and continuous drain current is 7.9 A at TC = 25 °C.
3 S passive Source; continuous source-drain body diode current is 7.9 A and pulsed 32 A.

Key specifications

Parameter Value
Manufacturer Vishay Intertech
Package TO-220F-3
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
Drain-source voltage VDS 250 V TC = 25 °C 1
Gate-source voltage VGS -20 20 V TC = 25 °C 1
Continuous drain current ID 7.9 A VGS at 10 V, TC = 25 °C 1
Continuous drain current ID 5 A VGS at 10 V, TC = 100 °C 1
Pulsed drain current IDM 32 A TC = 25 °C 1
Single pulse avalanche energy EAS 600 mJ VDD = 50 V, starting TJ = 25 °C, L = 15 mH, Rg = 25 Ω, IAS = 7.9 A 1
Repetitive avalanche current IAR 7.9 A TC = 25 °C 1
Repetitive avalanche energy EAR 4 mJ TC = 25 °C 1
Maximum power dissipation PD 40 W TC = 25 °C 1
Peak diode recovery dV/dt dV/dt 4.8 V/ns ISD ≤ 7.9 A, dI/dt ≤ 150 A/μs, VDD ≤ VDS, TJ ≤ 150 °C 1
Operating junction and storage temperature range TJ, Tstg -55 150 °C 1
Soldering recommendations (peak temperature) 300 °C For 10 s, 1.6 mm from case 1
Mounting torque 0.6 Nm M3 screw 1
Maximum junction-to-ambient RthJA 65 °C/W 2
Maximum junction-to-case (drain) RthJC 3.1 °C/W 2
Drain-source breakdown voltage VDS 250 V VGS = 0 V, ID = 250 μA 2
Gate-source threshold voltage VGS(th) 2 4 V VDS = VGS, ID = 250 μA 2
Gate-source leakage IGSS -100 100 nA VGS = ± 20 V 2
Zero gate voltage drain current IDSS 25 μA VDS = 250 V, VGS = 0 V 2
Zero gate voltage drain current IDSS 250 μA VDS = 200 V, VGS = 0 V, TJ = 125 °C 2
Drain-source on-state resistance RDS(on) 0.28 Ω VGS = 10 V, ID = 4.7 A 2
Forward transconductance gfs 6 S VDS = 50 V, ID = 4.7 A 2
Total gate charge Qg 68 nC VGS = 10 V, ID = 7.9 A, VDS = 200 V 2
Gate-source charge Qgs 11 nC VGS = 10 V, ID = 7.9 A, VDS = 200 V 2
Gate-drain charge Qgd 35 nC VGS = 10 V, ID = 7.9 A, VDS = 200 V 2
Gate input resistance Rg 0.3 1.4 Ω f = 1 MHz, open drain 2
Continuous source-drain diode current IS 7.9 A 2
Pulsed diode forward current ISM 32 A 2
Body diode voltage VSD 1.8 V TJ = 25 °C, IS = 7.9 A, VGS = 0 V 2
Body diode reverse recovery time trr 250 500 ns TJ = 25 °C, IF = 7.9 A, dI/dt = 100 A/μs 2
Body diode reverse recovery charge Qrr 2.3 4.6 μC TJ = 25 °C, IF = 7.9 A, dI/dt = 100 A/μs 2
VDS temperature coefficient ΔVDS/TJ 0.34 V/°C Reference to 25 °C, ID = 1 mA 2
Input capacitance Ciss 1300 pF VGS = 0 V, VDS = 25 V, f = 1.0 MHz 2
Output capacitance Coss 330 pF VGS = 0 V, VDS = 25 V, f = 1.0 MHz 2
Reverse transfer capacitance Crss 85 pF VGS = 0 V, VDS = 25 V, f = 1.0 MHz 2
Drain to sink capacitance C 12 pF f = 1.0 MHz 2
Turn-on delay time td(on) 11 ns VDD = 125 V, ID = 7.9 A, Rg = 9.1 Ω, RD = 16 Ω 2
Rise time tr 24 ns VDD = 125 V, ID = 7.9 A, Rg = 9.1 Ω, RD = 16 Ω 2
Turn-off delay time td(off) 53 ns VDD = 125 V, ID = 7.9 A, Rg = 9.1 Ω, RD = 16 Ω 2
Fall time tf 24 ns VDD = 125 V, ID = 7.9 A, Rg = 9.1 Ω, RD = 16 Ω 2
Internal drain inductance LD 4.5 nH Between lead, 6 mm (0.25") from package and center of die contact 2
Internal source inductance LS 7.5 nH Between lead, 6 mm (0.25") from package and center of die contact 2

CAD (KiCad official)

  • Symbol: IRFI644GPBF
  • Footprint: Package_TO_SOT_THT:TO-220F-3_Vertical
  • 3D model: TO-220F-3 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Vishay Intertech datasheet (10 pp, sha256 3f7afc1c79e174a6, retrieved 2026-10-27, tier: manufacturer)
  • 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