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SCHOTTKY RECTIFIER
180 Amp
180NQ... SERIES
PD-2.227 rev. B 12/97
1
www.irf.com
Dimensions in millimeters and inches
Outline HALF PAK Module
CASE STYLE AND DIMENSIONS
Major Ratings and Characteristics
Description/Features
The 180NQ high current Schottky rectifier module series has
been optimized for very low forward voltage drop, with
moderate leakage. The proprietary barrier technology allows
for reliable operation up to 150 C junction temperature.
Typical applications are in switching power supplies, convert-
ers, free-wheeling diodes, and reverse battery protection.
150 C T
J
operation
Unique high power, Half-Pak module
Replaces three parallel DO-5's
Easier to mount and lower profile than DO-5's
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
I
F(AV)
Rectangular
180
A
waveform
V
RRM
range
35 to 45
V
I
FSM
@ tp = 5 s sine
25,500
A
V
F
@
180Apk, T
J
=125C
0.56
V
T
J
range
- 55 to 150
C
Characteristics
180NQ...
Units
180NQ... Series
PD-2.227 rev. B 12/97
2
www.irf.com
T
J
Max. Junction Temperature Range
-55 to 150
C
T
stg
Max. Storage Temperature Range
-55 to 150
C
R
thJC
Max. Thermal Resistance Junction
0.30
C/W
DC operation * See Fig. 4
to Case
R
thCS
Typical Thermal Resistance, Case to
0.15
C/W
Mounting surface , smooth and greased
Heatsink
wt
Approximate Weight
25.6 (0.9) g (oz.)
T
Mounting Torque
Min.
40 (35)
Non-lubricated threads
Max.
58 (50)
Terminal Torque
Min.
58 (50)
Max.
86 (75)
Case Style
HALF PAK Module
Thermal-Mechanical Specifications
Parameters
180NQ Units
Conditions
V
FM
Max. Forward Voltage Drop (1)
0.60
V
@ 180A
* See Fig. 1
0.78
V
@ 360A
0.56
V
@ 180A
0.75
V
@ 360A
I
RM
Max. Reverse Leakage Current (1)
15
mA
T
J
= 25 C
* See Fig. 2
600
mA
T
J
= 125 C
C
T
Max. Junction Capacitance
7700
pF
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25 C
L
S
Typical Series Inductance
6.0
nH
From the top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change
10,000
V/ s
(Rated V
R
)
T
J
= 25 C
T
J
= 125 C
V
R
= rated V
R
Parameters
180NQ Units
Conditions
Electrical Specifications
I
F(AV)
Max. Average Forward Current
180
A
50% duty cycle @ T
C
= 90 C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
25,500
5s Sine or 3s Rect. pulse
Surge Current * See Fig. 7
2900
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
243
mJ
T
J
= 25 C, I
AS
= 36 Amps, L = 0.37 mH
I
AR
Repetitive Avalanche Current
36
A
Current decaying linearly to zero in 1 sec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Parameters
180NQ Units
Conditions
Absolute Maximum Ratings
A
Part number
180NQ035
180NQ040
180NQ045
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
35
40
45
Voltage Ratings
Following any rated
load condition and
with rated V
RRM
applied
Kg-cm
(Ibf-in)
(1) Pulse Width < 300s, Duty Cycle < 2%
180NQ... Series
PD-2.227 rev. B 12/97
3
www.irf.com
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
.01
.1
1
10
100
1000
10000
0
5
10 15 20 25 30 35 40 45
R
R
125C
100C
75C
50C
25C
Reverse Voltage - V (V)
R
e
v
e
r
s
e

C
u
r
r
e
n
t
-

I
(
m
A
)
T = 150C
J
1000
10000
0
10
20
30
40
50
T = 25C
J
Reverse Voltage - V (V)
R
T
J
u
n
c
t
i
on C
apa
c
i
t
a
nc
e
-
C
(
p
F
)
.001
.01
.1
1
.00001
.0001
.001
.01
.1
1
10
100
D = 0.33
D = 0.50
D = 0.25
D = 0.17
D = 0.08
1
th
J
C
t , Rectangular Pulse Duration (Seconds)
Th
e
r
m
a
l
I
m
ped
an
c
e

-
Z
(
C
/
W
)
Single Pulse
(Thermal Resistance)
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1
J
DM
thJC
C
2
Fig. 1 - Maximum Forward Voltage Drop Characteristics
1
10
100
1000
0
.1
.2
.3
.4
.5
.6
.7
.8
.9
FM
F
I
n
s
t
an
t
a
n
e
o
u
s
F
o
r
w
ar
d C
u
r
r
en
t
-
I

(
A
)
Forward Voltage Drop - V (V)
T = 150C
T = 125C
T = 25C
J
J
J
180NQ... Series
PD-2.227 rev. B 12/97
4
www.irf.com
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Maximum Non-Repetitive Surge Current
0
20
40
60
80
100
120
140
160
180
0
40
80
120 160 200 240 280
DC
A
v
er
ag
e P
o
w
e
r
Lo
s
s
-

(
W
at
t
s
)
F(AV)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Limit
Average Forward Current - I (A)
90
100
110
120
130
140
150
160
0
40
80
120 160 200 240 280
DC
A
l
l
o
wa
b
l
e
Ca
s
e
T
e
m
p
e
ra
t
u
re
-
(
C
)
Average Forward Current - I (A)
F(AV)
180NQ
R (DC) = 0.30C/W
thJC
1000
10000
100000
10
100
1000
10000
FS
M
p
N
on-
R
epet
i
t
i
v
e S
u
r
ge C
u
r
r
ent
-

I

(
A
)
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
Square Wave Pulse Duration - t (microsec)
FREE-WHEEL
DIODE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+