Bulletin PD-2.263 rev. D 07/01
401CNQ... SERIES
SCHOTTKY RECTIFIER
400 Amp
TO-244AB
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
V
F
T
J
@ tp = 5 µs sine
@200 Apk, T
J
= 125°C
(per leg)
range
Description/Features
The 401CNQ center tap Schottky rectifier module series has
been optimized 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 high
current switching power supplies, converters, free-wheeling
diodes, welding and reverse battery protection.
175° C T
J
operation
Center tap module
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
401CNQ... Units
400
35 to 45
25,000
0.56
A
V
A
V
- 55 to 175
°C
80.01 [3.150]
40.26 [1.585]
39.75 [1.565]
COMMON
CATHODE
Ø
10.41 [.410]
9.65 [.380]
20.32 [.800]
17.78 [.700]
LUG
TERMINAL
ANODE 1
LUG
TERMINAL
ANODE 2
2X Ø
7.49 [.295]
6.99 [.275]
34.925 [1.375]
REF.
63.50 [2.500]
60.96 [2.400]
Ø
4.95 [.195]
4.70 [.185]
1/4-20 SLOTTED HEX
BASE
COMMON CATHODE
23.55 [.927]
20.42 [.804]
15.75 [.620]
14.99 [.590]
3.35 [.132]
3.02 [.119]
92.71 [3.650]
90.17 [3.550]
NOTES:
1. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
2. CONTROLLING DIMENSION: MILLIMETER
Modified JEDEC
Outline TO-244AB
Dimensions in millimeters and (inches)
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1
401CNQ... Series
Bulletin PD-2.263 rev. D 07/01
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
401CNQ035
35
401CNQ040
40
401CNQ045
45
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current * See Fig. 5
I
FSM
E
AS
I
AR
(Per Leg)
(PerDevice)
401CNQ Units Conditions
200
400
25,000
3450
270
40
A
mJ
A
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
5µs Sine or 3µs Rect. pulse
T
J
= 25 °C, I
AS
= 40 Amps, L = 0.34 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
A
50% duty cycle @ T
C
= 145 °C, rectangular wave form
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg) * See Fig. 7
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
401CNQ Units Conditions
0.67
0.78
0.56
0.68
20
180
10,300
5.0
10000
V
V
V
V
mA
mA
pF
nH
V/ µs
(1) Pulse Width < 300µs, Duty Cycle <2%
@ 200A
@ 400A
@ 200A
@ 400A
T
J
= 25 °C
T
J
= 25 °C
I
RM
C
T
L
S
Max. Reverse Leakage Current
(Per Leg) * See Fig. 2
(1)
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
V
R
= rated V
R
T
J
= 125 °C
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
401CNQ Units Conditions
-55 to 175
-55 to 175
0.20
0.10
0.10
79 (2.80)
°C
°C
°C/W DCoperation
°C/W DCoperation
°C/W Mounting surface , smooth and greased
g (oz.)
* See Fig. 4
R
thJC
Max. Thermal Resistance Junction
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
to Heatsink
wt
Approximate Weight
T
Mounting Torque Base
Mounting Torque Center Hole
Terminal Torque
Case Style
Min.
Max.
Typ.
Min.
Max.
24(20)
35 (30)
Kg-cm
13.5 (12) (Ibf-in)
35 (30)
46 (40)
TO - 244AB
Modified JEDEC
2
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401CNQ... Series
Bulletin PD-2.263 rev. D 07/01
1000
10000
1000
Reverse Current - I
R
(mA)
T J = 175˚C
150˚C
100
125˚C
10
1
0.1
0.01
0.001
0
10
100˚C
75˚C
50˚C
25˚C
100
Instantaneous Forward Current - I
F
(A)
T
J
= 175˚C
T
J
= 125˚C
T
J
= 25˚C
20
30
40
50
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
10000
Junction Capacitance - C
T
(pF)
10
T = 25˚C
J
1
0
0.3
0.6
0.9
1.2
Forward Voltage Drop - V
FM
(V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
1000
0
10
20
30
40
50
60
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
1
Thermal Impedance Z
thJC
(°C/W)
0.1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
t1
0.01
Notes:
t2
Single Pulse
(Thermal Resistance)
1. Duty factor D = t1 / t2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.001
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
401CNQ... Series
Bulletin PD-2.263 rev. D 07/01
180
Allowable Case Temperature (°C)
Average Power Loss (Watts)
175
150
125
100
75
50
25
0
0
50
100
150
200
250
300
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
DC
160
140
120
100
Square wave (D = 0.50)
DC
RMS Limit
80
80% Rated VR applied
60
see note (2)
40
0
100
200
300
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Non-Repetitive Surge Current - I
FSM
(A)
100000
At Any Rated Load Condition
And With Rated VRRM Applied
Following Surge
10000
1000
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
L
H IG H-SPE ED
SW ITC H
FR EE-W H E EL
D IO D E
40H FL40 S02
V d = 25 V olt
D UT
IRFP460
Rg = 25 ohm
+
C URRE NT
M O N ITO R
Fig. 8 - Unclamped Inductive Test Circuit
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
4
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401CNQ... Series
Bulletin PD-2.263 rev. D 07/01
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.
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. 07/01
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