I
F(AV)
Rectangular
40
A
waveform
V
RRM
80/100
V
I
FSM
@ tp = 5 s sine
2950
A
V
F
@
20 Apk, T
J
=125C
0.61
V
(per leg)
T
J
- 55 to 175
C
Characteristics
40CPQ... Units
Major Ratings and Characteristics
Description/ Features
The 40CPQ... center tap Schottky rectifier has been opti-
mized for low reverse leakage at high temperature. The
proprietary barrier technology allows for reliable operation up
to 175 C junction temperature. Typical applications are in
switching power supplies, converters, free-wheeling diodes,
and reverse battery protection.
175 C T
J
operation
Center tap TO-247 package
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
40 Amp
40CPQ080
40CPQ100
Bulletin PD-2.309 rev. B 07/03
1
www.irf.com
Case Styles
TO-247AC
40CPQ...
Base
Common
Cathode
Anode
Anode
Common
Cathode
1
3
2
1
2
2
40CPQ080, 40CPQ100
Bulletin PD-2.309 rev. B 07/03
2
www.irf.com
Part number
40CPQ080
40CPQ100
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
80
100
T
J
Max. Junction Temperature Range
-55 to 175
C
T
stg
Max. Storage Temperature Range
-55 to 175
C
R
thJC
Max. Thermal Resistance Junction
1.25
C/W DC operation
* See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
0.63
C/W DC operation
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
0.24
C/W Mounting surface , smooth and greased
to Heatsink
wt
Approximate Weight
6 (0.21)
g (oz.)
T
Mounting Torque
Min.
6 (5)
Non-lubricated threads
Max.
12 (10)
Case Style
TO-247AC(TO-3P) JEDEC
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
Parameters
40CPQ Units
Conditions
Absolute Maximum Ratings
Following any rated
load condition and with
rated V
RRM
applied
Parameters
40CPQ Units
Conditions
A
V
FM
Max. Forward Voltage Drop
0.77
V
@ 20A
(Per Leg) * See Fig. 1
(1)
0.91
V
@ 40A
0.61
V
@ 20A
0.75
V
@ 40A
I
RM
Max. Reverse Leakage Current
1.25
mA
T
J
= 25 C
(Per Leg) * See Fig. 2
(1)
15
mA
T
J
= 125 C
C
T
Max. Junction Capacitance (Per Leg)
600
pF
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25C
L
S
Typical Series Inductance (Per Leg)
7.5
nH
Measured lead to lead 5mm from package 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
40CPQ Units
Conditions
(1) Pulse Width < 300s, Duty Cycle <2%
Voltage Ratings
Electrical Specifications
I
F(AV)
Max. Average Forward Current
40
A
50% duty cycle @ T
C
= 145C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
2950
5s Sine or 3s Rect. pulse
Surge Current (Per Leg) * See Fig. 7
300
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
11.25
mJ
T
J
= 25 C, I
AS
= 2 Amps, L = 5.6 mH
(Per Leg)
I
AR
Repetitive Avalanche Current
0.75
A
Current decaying linearly to zero in 1 sec
(Per Leg)
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
40CPQ080,
40CPQ100
Bulletin PD-2.309 rev. B 07/03
3
www.irf.com
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
.001
.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
th
J
C
t , Rectangular Pulse Duration (Seconds)
Th
e
r
m
al
I
m
ped
anc
e -
Z
(
C
/W
)
Single Pulse
(Thermal Resistance)
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
2
t
1
t
P
DM
1
J
C
2
DM
thJC
100
1000
0
20
40
60
80
100
T = 25C
J
Reverse Voltage - V (V)
R
T
J
u
nc
t
i
o
n
C
a
pac
i
t
a
n
c
e
-
C
(
p
F
)
.1
1
10
100
1000
0
.4
.8
1.2
1.6
2
FM
F
I
n
s
t
ant
ane
ous
F
o
r
w
ar
d
C
u
r
r
e
n
t
-
I
(
A
)
T = 175C
T = 125C
T = 25C
J
J
J
Forward Voltage Drop - V (V)
.001
.01
.1
1
10
100
1000
0
20
40
60
80
100
R
R
T = 175C
150C
125C
100C
75C
50C
25C
J
Reverse Voltage - V (V)
R
ev
er
s
e
C
u
r
r
e
n
t
-
I
(
m
A)
40CPQ080, 40CPQ100
Bulletin PD-2.309 rev. B 07/03
4
www.irf.com
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
150
155
160
165
170
175
180
0
5
10
15
20
25
30
DC
Al
l
o
w
ab
l
e
C
as
e T
e
m
p
e
r
a
t
u
r
e
-
(
C
)
Average Forward Current - I (A)
F(AV)
R (DC) = 1.25C/W
thJC
0
2
4
6
8
10
12
14
16
18
0
5
10
15
20
25
30
DC
A
v
er
a
ge P
o
w
e
r
L
o
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)
100
1000
10000
10
100
1000
10000
FS
M
p
N
on-R
epe
t
i
t
i
v
e
Surge
C
u
rrent
-
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
+
40CPQ080,
40CPQ100
Bulletin PD-2.309 rev. B 07/03
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. 07/03
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.
Conform to JEDEC outline TO-247AC (TO-3P)
Dimensions in millimeters and (inches)
15 .90 (0 .626 )
15 .30 (0 .602 )
14 .20 (0 .559 )
14. 80 ( 0.583)
3. 70 (0 .14 5)
4.30 (0 .17 0)
5.30 ( 0.208)
5. 70 (0 .22 5)
5.50 ( 0.217)
4. 50 (0 .17 7)
(2 PLCS.)
3. 55 (0 .13 9)
3. 65 (0 .14 4)
2. 20 (0 .08 7)
MAX .
1. 00 (0 .03 9)
1. 40 (0 .05 6)
0. 40 (0 .21 3)
0.80 ( 0.032)
4.70 ( 0.185)
5. 30 (0 .20 9)
1.5 ( 0.059)
2.5 ( 0.098)
2.40 (0 .09 5)
M AX.
10 .86 (0 .427 )
10. 94 ( 0.430)
20 .30 (0 .800 )
19 .70 (0 .775 )
DIA.
1
2
3
Outline Table
Base
Common
Cathode
Anode
Anode
Common
Cathode
1
3
2
1
2
2
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