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Infineon Technologies AUIRFR120Z — Discrete Semiconductors
Infineon Technologies

Infineon AUIRFR120Z N-Channel HEXFET, 100V 8.7A, 190mOhm

MPNAUIRFR120Z
Active

Infineon HEXFET® N-Channel MOSFET, AUIRFR120Z, 100V Vds, 8.7A Id, 190mOhm Rds(on) at 10V, DPAK (TO-252) surface mount, -55°C to 175°C junction.

$0.48Ref. price · indicative, final on quote
AUIRFR120Z datasheet
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MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications

AUIRFR120Z Technical Specifications
ParameterValue
SeriesHEXFET®
FET typeN-Channel
Mounting_typeSurface Mount
Operating temperature high-55°C to 175°C(TJ)
Vgs±20 V
Power_w35.0
Package_typeBulk
Capacitance_uf0.0003
Product_statusActive
Supply_voltage_v100.0
Vgs(Th) (Max) @ id4 V @ 25µA
Switching_current_a8.7
Rds on (Max) @ id, vgs190mOhm @ 5.2 A, 10 V
Gate charge (Qg) (Max) @ vgs10 nC @ 10 V

Product details

HEXFET N-channel in a DPAK — 100 V, 8.7 A switching

The Infineon AUIRFR120Z is a 100 V, 8.7 A N-channel HEXFET MOSFET in the DPAK (TO-252) surface-mount package. It is designed for high-efficiency power switching in applications such as DC-DC converters, motor drives, and load switches where board space is tight.

This gives a conduction loss of about 1.0 W at 5.2 A — well within the 35 W package power dissipation limit when the junction stays under 175°C. Total gate charge is 10 nC at 10 V, so a gate driver delivering 1 A can switch this FET in roughly 10 ns. The low Qg keeps gate-drive losses small even at switching frequencies above 100 kHz.

Temperature range and ruggedness

The 4 V maximum threshold voltage at 25 µA ensures the device turns on cleanly with 5 V logic-level gate drives.

Frequently asked questions

Is AUIRFR120Z a direct replacement for IRFR120Z?

The AUIRFR120Z is the Infineon (formerly International Rectifier) version of the same HEXFET die in the DPAK package. It is pin-compatible and electrically equivalent to the IRFR120Z — same 100 V, 8.7 A, 190 mOhm ratings. It can serve as a drop-in replacement for the IRFR120Z in most designs.

What is the maximum Rds(on) of AUIRFR120Z?

This value is the worst-case over the full temperature range.