The 403DMQ100 center tap Schottky rectifier module series
has been optimized for low reverse leakage at high tempera-
ture. The proprietary barrier technology allows for reliable
operation up to 175 C junction temperature. Typical applica-
tions are in high current switching power supplies, plating
power supplies, UPS systems, 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
Description/ Features
Major Ratings and Characteristics
I
F(AV)
Rectangular
400
A
waveform
V
RRM
100
V
I
FSM
@ tp = 5 s sine
25,500
A
V
F
@
200Apk, T
J
=125C
0.72
V
(per leg)
T
J
range
- 55 to 175
C
Characteristics
403DMQ... Units
SCHOTTKY RECTIFIER
403DMQ... Series
400 Amp
Bulletin PD-2.539 rev. C 02/04
TO-244AB
isolated doubler
Modified JEDEC
Outline TO-244AB Isolated
Dimensions in millimeters and (inches)
1
2
3
1
www.irf.com
403DMQ... Series
2
Bulletin PD-2.259
rev. C 02/04
www.irf.com
Parameters
403DMQ100
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
100
Voltage Ratings
Absolute Maximum Ratings
Following any rated
load condition and with
rated V
RRM
applied
Parameters
403DMQ Units
Conditions
A
I
F(AV)
Max. Average Forward
400
A
50% duty cycle @ T
C
= 82 C, rectangular wave form
Current ( Per Leg )
I
FSM
Max. Peak One Cycle Non-Repetitive
25,500
5s Sine or 3s Rect. pulse
Surge Current (Per Leg)
3,300
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
15
mJ
T
J
= 25 C, I
AS
= 1 Amps, L = 30 mH
(Per Leg)
I
AR
Repetitive Avalanche Current
1
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
(1) Pulse Width < 300s, Duty Cycle <2%
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
0.4
C/W DC operation
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
0.2
C/W DC operation
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
0.1
C/W Mounting surface , smooth and greased
to Heatsink
wt
Approximate Weight
79 (2.80)
g (oz.)
T
Mounting Torque Base
Min.
24 (20)
Max.
35 (30)
Mounting Torque Center HoleTyp.
13.5 (12)
Terminal Torque
Min.
35 (30)
Max.
46 (40)
Case Style TO - 244AB isolated doubler Modified JEDEC
Thermal-Mechanical Specifications
Parameters
403DMQ Units
Conditions
V
FM
Max. Forward Voltage Drop
0.87
V
@ 200A
(Per Leg)
(1)
1.06
V
@ 400A
0.72
V
@ 200A
0.86
V
@ 400A
I
RM
Max. Reverse Leakage Current
6
mA
T
J
= 25 C
(Per Leg)
(1)
140
mA
T
J
= 125 C
C
T
Max. Junction Capacitance (Per Leg)
5500
pF
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25C
L
S
Typical Series Inductance (Per Leg)
5.0
nH
From top of terminal hole to mounting plane
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
403DMQ Units
Conditions
Kg-cm
(Ibf-in)
Electrical Specifications
403DMQ... Series
3
Bulletin PD-2.259
rev. C 02/04
www.irf.com
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 1 - Max. Forward Voltage Drop Characteristics
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics
0.001
0.01
0.1
1
10
100
1000
0
20
40
60
80
100
150C
125C
100C
75C
50C
25C
T = 175C
J
0
200
400
600
0
200
400
600
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
0.001
0.01
0.1
1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
Single Pulse
(Thermal Resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
J
DM
thJC
C
2
1
Forward Voltage Drop - V
FM
(V)
Instantaneous Forward Current - I
F
(A)
Reverse Current - I
R
(mA)
Reverse Voltage - V
R
(V)
Reverse Voltage - V
R
(V)
Junction Capacitance - C
T
(pF)
t
1
, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z
thJC
(C/W)
1
10
100
1000
0
0.3
0.6
0.9
1.2
1.5
T = 175C
T = 125C
T = 25C
J
J
J
403DMQ... Series
4
Bulletin PD-2.259
rev. C 02/04
www.irf.com
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 6 - Forward Power Loss Characteristics
FREE-WHEEL
DIODE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
(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
0
40
80
120
160
200
0
200
400
600
DC
see note (2)
Square wave (D = 0.50)
80% Rated V applied
R
1000
10000
100000
10
100
1000
10000
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
Average Forward Current - I
F(AV)
(A)
Average Forward Current - I
F(AV)
(A)
Square Wave Pulse Duration - t
P
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
Allowable Case Temperature (C)
Average Power Loss (Watts)
Non-Repetitive Surge Current - I
FSM
(A)
0
200
400
600
0
200
400
600
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
403DMQ... Series
5
Bulletin PD-2.259
rev. C 02/04
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. 02/04
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.
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