Bulletin PD-20580 rev. B 10/02
203DNQ... 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
(per leg)
range
80 to 100
16,000
0.70
V
A
V
Description/ Features
The 203DNQ Schottky rectifier doubler 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, 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
203DNQ... Units
200
A
- 55 to 175
°C
1
2
3
Modified JEDEC
Outline TO-244AB
Dimensions in millimeters and (inches)
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203DNQ... Series
Bulletin PD-20580 rev. B 10/02
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
203DNQ080
80
203DNQ100
100
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current
* See Fig. 5
(Per Device)
16,000
2,100
15
1
A
mJ
A
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
applied
RRM
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
5µs Sine or 3µs Rect. pulse
I
FSM
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg) * See Fig. 7
E
AS
I
AR
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
203DNQ Units Conditions
200
A
50% duty cycle @ T
C
= 136 °C, rectangular wave form
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
203DNQ Units Conditions
0.86
1.03
0.70
0.84
3
40
0.50
1.08
2,650
7.0
10000
(Per Leg)
V
V
V
V
mA
mA
V
m
Ω
@ 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
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%
203DNQ Units Conditions
- 55 to 175
- 55 to 175
°C
°C
DCoperation
DCoperation
Mounting surface , smooth and greased
* See Fig. 4
R
thJC
Max. Thermal Resistance Junction
0.40
°C/W
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
0.20
°C/W
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
0.10
°C/W
to Heatsink
wt
Approximate Weight
79 (2.80) g (oz.)
Kg-cm
T
Mounting Torque
Min.
24 (20)
(Ibf-in)
Max.
35 (30)
Mounting Torque Center Hole
Typ.
13.5 (12)
Terminal Torque
Min.
35 (30)
Max.
46 (40)
Case Style
TO - 244AB Isolated
Modified JEDEC
2
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203DNQ... Series
Bulletin PD-20580 rev. B 10/02
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)
10
1
0
0.2
0.4
0.6
0.8
1
1.2
Forward Voltage Drop - V
FM
(V)
1.4
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
(°C/W)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
thJC
0.1
Thermal Impedance Z
Junction Capacitance - C
T
(p F)
T = 25˚C
J
P
DM
t1
0.01
Single Pulse
(Thermal Resistance)
Notes:
1. Duty factor D = t1/ t2
t2
2. Peak Tj = Pdm x ZthJC + Tc
0.001
0.00001
0.0001
0.001
0.01
0.1
t
1
, Rectangular Pulse Duration (Seconds)
1
10
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
203DNQ... Series
Bulletin PD-20580 rev. B 10/02
180
Allowable Case Temperature (°C)
Average Power Loss (Watts)
50
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
170
160
DC
00
50
RMS Limit
DC
150
140
130
see note (2)
80% Square Wave
(D = 0.50)
00
50
120
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)
00000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
0
0
50
100
150
200
250
300
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-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
+
DUT
IRFP460
Rg = 25 ohm
Vd = 25 Volt
CURRENT
MONITOR
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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203DNQ... Series
Bulletin PD-20580 rev. B 10/02
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. 10/02
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