Bulletin PD-20579 rev. C 02/04
203DMQ... SERIES
SCHOTTKY RECTIFIER
200 Amp
TO-244AB
isolated doubler
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 100Apk, T
J
=125°C
range
Description/ Features
The 203DMQ Schottky rectifier doubler module series has
been optimized for low reverse leakage at high temperature.
The proprietary barrier technology allows for reliable opera-
tion up to 175 °C junction temperature. Typical applications
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
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
203DMQ... Units
200
80 and 100
16,000
0.70
A
V
A
V
(per leg)
- 55 to 175
°C
1
2
3
Modified JEDEC
Outline TO-244AB Isolated
Dimensions in millimeters and (inches)
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1
203DMQ... Series
Bulletin PD-20579 rev. C
02/04
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
203DMQ080
80
Max. Working Peak Reverse Voltage (V)
203DMQ100
100
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current
I
FSM
E
AS
I
AR
* See Fig. 5
(Per Leg)
16,000
2,100
15
1
A
mJ
A
5µs Sine or 3µs Rect. pulse
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg) * See Fig. 7
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
203DMQ Units
200
A
Conditions
50% duty cycle @ T
C
= 107 °C, rectangular wave form
T
J
= 25 °C, I
AS
= 1 Amps, L = 30 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
203DMQ Units
0.86
1.03
0.70
0.84
3
40
0.50
1.08
2,650
7.0
10000
V
V
V
V
mA
mA
V
mΩ
Conditions
@ 100A
@ 200A
@ 100A
@ 200A
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
max.
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
Max. Reverse Leakage Current
(Per Leg) * See Fig. 2
(1)
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
pF
nH
V/ µs
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
(1) Pulse Width < 300µs, Duty Cycle <2%
203DMQ Units
- 55 to 175
- 55 to 175
°C
°C
Conditions
R
thJC
Max. Thermal Resistance Junction
0.70
°C/W
to Case (Per Leg)
0.35
°C/W
R
thJC
Max. Thermal Resistance Junction
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
0.10
°C/W
to Heatsink
wt
Approximate Weight
79 (2.80) g (oz.)
T
Mounting Torque
Min.
24 (20)
Kg-cm
Max.
35 (30)
(Ibf-in)
Mounting Torque Center Hole Typ. 13.5 (12)
Terminal Torque
Min.
35 (30)
Max.
46 (40)
Case Style
TO - 244AB Isolated
DC operation
DC operation
* See Fig. 4
Mounting surface , smooth and greased
Modified JEDEC
2
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203DMQ... Series
Bulletin PD-20579 rev. C
02/04
1000
Reverse Current - I
R
(mA)
1000
T J = 175˚C
100
10
1
0.1
0.01
0.001
0
150˚C
125˚C
100˚C
75˚C
50˚C
(A)
100
F
Instantaneous Forward Current - I
25˚C
20
40
60
80
Reverse Voltage - V
R
(V)
100
T = 175˚C
J
T = 125˚C
J
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
10000
Junction Capacitance - C
T
(p F)
T = 25˚C
J
10
T J = 25˚C
1000
1
0
0.2
0.4
0.6
0.8
1
1.2
Forward Voltage Drop - V
FM
(V)
1.4
100
0
20
40
60
80
100
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
thJC
(°C/W)
0.1
Thermal Impedance Z
P
DM
t1
0.01
Single Pulse
(Thermal Resistance)
t2
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.001
0.00001
0.0001
0.001
0.01
0.1
1
t
1
, Rectangular Pulse Duration (Seconds)
10
100
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
203DMQ... Series
Bulletin PD-20579 rev. C
02/04
180
250
Allowable Case Temperature (°C)
160
Average Power Loss (Watts)
200
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
140
DC
150
RMS Limit
DC
120
80% Square Wave
(D = 0.50)
100
100
see note (2)
50
80
0
50
100
150
200
250
300
0
0
50
100
150
200
250
300
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Non-Repetitive Surge Current - I
FSM
(A)
100000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
10000
1000
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
HIGH-S
PEED
S CH
WIT
FREE-WHEEL
DIODE
40HF
L40S
02
+
DUT
IR P460
F
R = 25 ohm
g
Vd = 25 Volt
CURRENT
MONIT
OR
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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203DMQ... Series
Bulletin PD-20579 rev. C
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.
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
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