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Infineon Technologies IRLZ34NL — Discrete Semiconductors

IRLZ34NL HEXFET N-Channel MOSFET, 55V 30A, TO-262

MPNIRLZ34NL
Obsolete

IRLZ34NL, Infineon (International Rectifier) HEXFET N-Channel MOSFET, 55V Vdss, 30A Id, 35mOhm Rds(on) at 10V, TO-262-3 (I²Pak) through-hole package, -55°C to 175°C operating temperature.

Infineon Technologies IRLZ34NL datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IRLZ34NL specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
MountingThrough Hole
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)4V, 10V
Current - continuous drain (Id) @ 25°C30A (Tc)
Power dissipation3.8W (Ta), 68W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageTube
Vgs±16V
TechnologyMOSFET (Metal Oxide)
CaseTO-262-3 Long Leads, I²Pak, TO-262AA
Vgs(th) (Max) @ id2V @ 250µA
Rds on (Max) @ id, vgs35mOhm @ 16A, 10V
Gate charge (Qg) (Max) @ vgs25 nC @ 5 V
Input capacitance (Ciss) (Max) @ vds880 pF @ 25 V

Product details

55 V, 30 A N-channel HEXFET in a TO-262 through-hole package

The TO-262 (I²Pak) through-hole package with long leads suits designs where the device is bolted to a heatsink or mounted on a PCB with a thermal pad.

The gate threshold voltage is 2 V maximum at 250 µA drain current, making it a logic-level device that can be driven directly from 5 V or 3.3 V logic outputs. The drive voltage range for achieving minimum on-resistance is 4 V to 10 V. Input capacitance is 880 pF at 25 V drain-source, which influences switching speed and driver sizing.

Buyers should verify stock position before committing a BOM line; this is a part to procure on a per-order basis rather than blanket into a production forecast.

Thermal and power dissipation

Maximum power dissipation is 3.8 W at ambient (25°C) and 68 W at case temperature (25°C). The wide gap between Ta and Tc ratings underscores the need for effective heatsinking when running more than a few watts.

Frequently asked questions

What is the replacement for IRLZ34NL?

For a pin-compatible alternative, check the IRLZ34N (TO-220) or IRLZ34NPbF (TO-262) variants, but verify the package and thermal specs against your design. Sourcing through independent distribution is the current path for this exact order code.

IRLZ34NL vs IRLZ34N: what's the difference?

The IRLZ34NL uses the TO-262 (I²Pak) through-hole package with long leads, while the IRLZ34N typically comes in a TO-220AB package. The electrical specifications (55 V, 30 A, 35 mOhm Rds(on)) are essentially the same. The TO-262 offers a lower profile and is often preferred for designs where the device is soldered directly to a PCB rather than bolted through a chassis.