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IRH7450_15 Datasheet, PDF (1/12 Pages) International Rectifier – Simple Drive Requirements
PD - 91807A
REPETITIVE AVALANCHE AND dv/dt RATED
HEXFET® TRANSISTOR
IRH7450
IRH8450
N CHANNEL
MEGA RAD HARD
500Volt, 0.45Ω, MEGA RAD HARD HEXFET Product Summary
International Rectifier’s RAD HARD technology
HEXFETs demonstrate excellent threshold voltage
stability and breakdown voltage stability at total
radiaition doses as high as 1x106 Rads(Si). Under
identical pre- and post-irradiation test conditions, In-
ternational Rectifier’s RAD HARD HEXFETs retain
identical electrical specifications up to 1 x 105 Rads
(Si) total dose. No compensation in gate drive circuitry
is required. These devices are also capable of surviv-
ing transient ionization pulses as high as 1 x 1012 Rads
(Si)/Sec, and return to normal operation within a few
microseconds. Since the RAD HARD process utilizes
International Rectifier’s patented HEXFET technology,
the user can expect the highest quality and reliability
in the industry.
RAD HARD HEXFET transistors also feature all of
the well-established advantages of MOSFETs, such
as voltage control, very fast switching, ease of paral-
leling and temperature stability of the electrical pa-
rameters. They are well-suited for applications such
as switching power supplies, motor controls, invert-
ers, choppers, audio amplifiers and high-energy
pulse circuits in space and weapons environments.
Absolute Maximum Ratings 
Part Number
IRH7450
IRH8450
BVDSS
500V
500V
RDS(on)
ID
0.45Ω 11A
0.45Ω 11A
Features:
n Radiation Hardened up to 1 x 106 Rads (Si)
n Single Event Burnout (SEB) Hardened
n Single Event Gate Rupture (SEGR) Hardened
n Gamma Dot (Flash X-Ray) Hardened
n Neutron Tolerant
n Identical Pre- and Post-Electrical Test Conditions
n Repetitive Avalanche Rating
n Dynamic dv/dt Rating
n Simple Drive Requirements
n Ease of Paralleling
n Hermetically Sealed
Pre-Irradiation
Parameter
IRH7450, IRH8450
Units
ID @ VGS = 12V, TC = 25°C
ID @ VGS = 12V, TC = 100°C
IDM
PD @ TC = 25°C
Continuous Drain Current
Continuous Drain Current
Pulsed Drain Current ‚
Max. Power Dissipation
Linear Derating Factor
11
7.0
A
44
150
W
1.2
W/°C
VGS
Gate-to-Source Voltage
±20
V
EAS
Single Pulse Avalanche Energy ƒ
500
mJ
IAR
Avalanche Current ‚
11
A
EAR
Repetitive Avalanche Energy‚
15
mJ
dv/dt
Peak Diode Recovery dv/dt „
3.5
V/ns
TJ
TSTG
Operating Junction
Storage Temperature Range
Lead Temperature
-55 to 150
oC
300 (0.063 in. (1.6mm) from case for 10s)
Weight
11.5 (typical)
g
www.irf.com
1
10/14/98