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AUIRFN8458 Datasheet, PDF (1/10 Pages) International Rectifier – Advanced Process Technology
AUTOMOTIVE GRADE
AUIRFN8458
Features
 Advanced Process Technology
 Dual N-Channel MOSFET
 Ultra Low On-Resistance
 175°C Operating Temperature
 Fast Switching
 Repetitive Avalanche Allowed up to Tjmax
 Lead-Free, RoHS Compliant
 Automotive Qualified *
Description
Specifically designed for Automotive applications, this
HEXFET® Power MOSFET utilizes the latest processing
techniques to achieve extremely low on-resistance per
silicon area. Additional features of this design are a 175°C
junction operating temperature, fast switching speed and
improved repetitive avalanche rating. These features
combine to make this product an extremely efficient and
reliable device for use in Automotive and wide variety of
other applications.
Applications
 12V Automotive Systems
 Low Power Brushed Motor
 Braking
VDSS
RDS(on) typ.
max
ID
(@TC (Bottom) = 25°C
40V
8.0m
10m
43A
G
Gate
DUAL PQFN 5X6 mm
D
Drain
S
Source
Base Part Number
Package Type
AUIRFN8458
Dual PQFN 5mm x 6mm
Standard Pack
Form
Quantity
Tape and Reel
4000
Orderable Part Number
AUIRFN8458TR
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only; and
functional operation of the device at these or any other condition beyond those indicated in the specifications is not implied. Exposure to absolute-
maximum-rated conditions for extended periods may affect device reliability. The thermal resistance and power dissipation ratings are measured under
board mounted and still air conditions. Ambient temperature (TA) is 25°C, unless otherwise specified.
ID @ TC (Bottom) = 25°C
ID @ TC (Bottom) = 100°C
IDM
PD @TC (Bottom) = 25°C
VGS
EAS
EAS (Tested)
IAR
EAR
TJ
TSTG
Parameter
Continuous Drain Current, VGS @ 10V
Continuous Drain Current, VGS @ 10V
Pulsed Drain Current 
Power Dissipation
Linear Derating Factor
Gate-to-Source Voltage
Single Pulse Avalanche Energy (Thermally Limited) 
Single Pulse Avalanche Energy 
Avalanche Current 
Repetitive Avalanche Energy 
Operating Junction and
Storage Temperature Range
Max.
43
30
180
34
0.23
± 20
35
37
See Fig. 14, 15, 22a, 22b
Units
A
W
W/°C
V
mJ
A
-55 to + 175
°C
HEXFET® is a registered trademark of International Rectifier.
*Qualification standards can be found at http://www.irf.com/
1 www.irf.com © 2014 International Rectifier
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October 17, 2014