Dimensions in millimeters and inches
Conforms to JEDEC Outline DO - 204AR
CASE STYLE AND DIMENSIONS
Major Ratings and Characteristics
I
F(AV)
Rectangular
8
A
waveform
V
RRM
range
35 to 45
V
I
FSM
@ tp = 5 s sine
2400
A
V
F
@
8 Apk, T
J
= 125C
0.44
V
T
J
range
- 55 to 175
C
Characteristics
80SQ...
Units
Description/Features
The 80SQ axial leaded Schottky rectifier series has been
optimized for low reverse leakage at high temperature. The
proprietary barrier technology allows for reliable operation up
to 175C junction temperature. Typical applications are in
switching power supplies, converters, free-wheeling diodes,
and reverse battery protection.
175 C T
J
operation
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
SCHOTTKY RECTIFIER
8 Amp
80SQ... SERIES
Bulletin PD-2.047 rev. E 12/01
1
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80SQ... Series
Bulletin PD-2.047 rev. E 12/01
2
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V
FM
Max. Forward Voltage Drop (1)
0.53
V
@ 8A
* See Fig. 1
0.60
V
@ 16A
0.44
V
@ 8A
0.55
V
@ 16A
I
RM
Max. Reverse Leakage Current (1)
2
mA
T
J
= 25 C
* See Fig. 2
15
mA
T
J
= 125 C
C
T
Max. Junction Capacitance
900
pF
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25 C
L
S
Typical Series Inductance
10.0
nH
Measured lead to lead 5mm from body
dv/dt Max. Voltage Rate of Change
10000
V/ s
(Rated V
R
)
T
J
= 25 C
T
J
= 125 C
V
R
= rated V
R
Parameters
80SQ Units
Conditions
Electrical Specifications
T
J
Max. Junction Temperature Range
-55 to 175
C
T
stg
Max. Storage Temperature Range
-55 to 175
C
R
thJL
Max. Thermal Resistance Junction
8.0
C/W DC operation * See Fig. 4
to Lead
1/8 inch lead length
R
thJA
Typical Thermal Resistance,
44
C/W
Junction to Air
wt
Approximate Weight
1.4(0.049) g (oz.)
Case Style
DO - 204AR
JEDEC
Thermal-Mechanical Specifications
Parameters
80SQ Units
Conditions
(1) Pulse Width < 300s, Duty Cycle < 2%
I
F(AV)
Max. Average Forward Current
8
A
50% duty cycle @ T
C
= 119 C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
2400
5s Sine or 3s Rect. pulse
Surge Current * See Fig. 7
380
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
10
mJ
T
J
= 25 C, I
AS
= 1.6 Amps, L = 7.8 mH
I
AR
Repetitive Avalanche Current
1.6
A
Current decaying linearly to zero in 1 sec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Parameters
80SQ Units
Conditions
Absolute Maximum Ratings
A
Part number
80SQ035
80SQ040
80SQ045
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
80SQ... Series
Bulletin PD-2.047 rev. E 12/01
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
thJL
Characteristics
100
1000
0
10
20
30
40
50
T = 25C
J
Reverse Voltage - V (V)
R
T
J
u
n
c
ti
o
n
C
a
p
a
c
i
ta
n
c
e
-
C
(p
F
)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
.1
1
10
100
0
.1 .2 .3 .4 .5 .6 .7 .8 .9
1 1.1
FM
F
In
s
t
a
n
ta
n
e
o
u
s
F
o
r
w
a
r
d
C
u
r
r
e
n
t -
I
(
A
)
T = 175C
T = 125C
T = 25C
J
J
J
Forward Voltage Drop - V (V)
.0001
.001
.01
.1
1
10
100
1000
0
5 10 15 20 25 30 35 40 45
R
R
T = 175C
150C
125C
100C
75C
50C
25C
J
Reverse Voltage - V (V)
Re
v
e
r
s
e
C
u
rre
n
t
-
I
(m
A)
.01
.1
1
10
.00001
.0001
.001
.01
.1
1
10
100
D = 0.33
D = 0.50
D = 0.25
D = 0.17
D = 0.08
1
t , Rectangular Pulse Duration (Seconds)
Th
e
r
m
a
l
Im
p
e
d
a
n
c
e
-
Z
(
C
/
W
)
Single Pulse
(Thermal Resistance)
th
J
L
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1
J
DM
C
2
thJL
= 1/8 inch
80SQ... Series
Bulletin PD-2.047 rev. E 12/01
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
1
2
3
4
5
6
0
2
4
6
8
10
12
DC
A
v
er
ag
e P
o
w
e
r
L
o
s
s
- (W
a
tts
)
F(AV)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Limit
Average Forward Current - I (A)
130
140
150
160
170
180
0
2
4
6
8
10
12
DC
Al
l
o
w
ab
l
e
C
as
e
T
e
m
pe
r
a
t
u
r
e
-
(
C
)
Average Forward Current - I (A)
F(AV)
80SQ
R (DC) = 8.0C/W
thJL
= 1/8 inch
100
1000
10000
10
100
1000
10000
FS
M
p
Non-Rep
e
ti
ti
ve Surge Cur
r
en
t - I (A)
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
Square Wave Pulse Duration - t (microsec)
FR EE-W HE EL
D IO D E
40H FL40S02
C UR RE N T
M O N ITO R
H IG H -SPE ED
SW ITC H
IRFP460
L
D UT
Rg = 25 ohm
V d = 25 V olt
+
80SQ... Series
Bulletin PD-2.047 rev. E 12/01
5
www.irf.com
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 12/01
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
Qualification Standards can be found on IR's Web site.
Ordering Information Table
Device Code
1
2
4
3
1
-
Essential Part Number (current x10)
2
-
S = DO-204AR
3
-
Q = Schottky Q Series
4
-
Voltage Rating
80
S
Q
045
035 = 35V
040 = 40V
045 = 45V
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