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Infineon Technologies IRF3205L — Discrete Semiconductors

IRF3205L N-Channel MOSFET, 55V 110A, TO-262, Obsolete

MPNIRF3205L
Obsolete

Infineon HEXFET® IRF3205L, N-Channel MOSFET, 55 V Vdss, 110 A Id, 8 mOhm Rds(on) @ 10 V, TO-262-3 through-hole, -55°C to 175°C junction.

$1.6000Ref. price · indicative, final on quote
Infineon Technologies IRF3205L datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRF3205L specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
MountingThrough Hole
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C110A (Tc)
Power dissipation200W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-262-3 Long Leads, I2PAK, TO-262AA
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs8mOhm @ 62A, 10V
Gate charge (Qg) (Max) @ vgs146 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds3247 pF @ 25 V

Product details

The IRF3205L: The TO-262 through-hole package makes it a candidate for motor drives, DC-DC converters, battery management, and other high-current switching circuits where a soldered-in, field-swappable part is preferred over surface-mount.

The 55 V Vdss rating sets the maximum rail voltage you can switch — fine for 12 V and 24 V systems, but tight for a 48 V bus with transients. The 110 A continuous current at 25°C is a case-temperature-limited number; real-world current will be lower unless you have a heatsink and airflow. The 8 mOhm Rds(on) at 10 V gate drive means low conduction losses at high current — expect about 0.88 W dissipation at 62 A, which is manageable with a decent heatsink. Gate charge of 146 nC at 10 V is moderate; the driver needs to source and sink that charge fast enough for your switching frequency. Input capacitance of 3247 pF at 25 V is typical for a TO-220-class die; it will load the gate driver, so check your drive strength if switching above 50 kHz.

The IRF3205L is listed as obsolete.

Frequently asked questions

Is IRF3205L obsolete?

Yes, the IRF3205L is listed as obsolete. Infineon no longer manufactures it, so new supply comes from independent distributors or surplus stock.

What is the replacement for IRF3205L?

There is no official Infineon replacement part number. The IRF3205 (TO-220) is electrically identical but in a different package. For a TO-262 alternative, check other N-channel 55 V MOSFETs from Infineon or competitors, but verify Rds(on) and gate charge match your design.

Where to buy IRF3205L available via RFQ confirmation?

The IRF3205L is obsolete, so standard distributors no longer stock it. We source it through independent distribution and can quote availability and current pricing against an RFQ.