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Infineon Technologies IRF3205ZS — Discrete Semiconductors

IRF3205ZS HEXFET N-Channel MOSFET, 55V 75A D2PAK

MPNIRF3205ZS
Obsolete

Infineon IRF3205ZS HEXFET N-Channel MOSFET, 55 V Vdss, 75 A continuous drain, 6.5 mOhm Rds(on) at 10 V, D2PAK surface mount, -55°C to 175°C junction temperature.

$1.8600Ref. price · indicative, final on quote
Infineon Technologies IRF3205ZS datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRF3205ZS specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
MountingSurface Mount
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C75A (Tc)
Power dissipation170W (Tc)
Operating temperature-55°C~175°C(TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs6.5mOhm @ 66A, 10V
Gate charge (Qg) (Max) @ vgs110 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds3450 pF @ 25 V

Product details

Gate drive and switching — what the 110 nC Qg means for your driver

With a total gate charge of 110 nC at 10 V, the IRF3205ZS needs a gate driver capable of sourcing and sinking that charge quickly to achieve fast switching edges.

Obsolete — sourcing strategy for sustainment programs

Official production has ended, and no successor order code is listed on the record.

Thermal and mechanical — D2PAK mounting notes

Without adequate thermal vias and a low-thermal-resistance path to the board, the junction will exceed 175°C well before 170 W is reached.

Frequently asked questions

Is IRF3205ZS obsolete?

Yes, the IRF3205ZS is listed as obsolete. Official production has ceased, and no direct replacement order code is recorded. For existing designs, source through the surplus channel. For new designs, evaluate the active IRF3205 or IRFS3205 series in D2PAK.

What is the replacement for IRF3205ZS?

The closest functional alternatives are the active IRF3205 (non-ZS suffix) or the IRFS3205 series in D2PAK — both are N-channel HEXFETs with similar 55 V / 75 A ratings. Verify pin-compatibility and parametric overlap against your specific load and gate-drive conditions before substituting.