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SCHOTTKY RECTIFIER
Bulletin PD-20580 rev. B 10/02
203DNQ... SERIES
200 Amp
Major Ratings and Characteristics
Characteristics
203DNQ... Units
IF(AV) Rectangular
waveform
VRRM range
IFSM @ tp = 5 µs sine
VF @100Apk,TJ=125°C
(per leg)
TJ range
200
80 to100
16,000
0.70
- 55 to 175
A
V
A
V
°C
TO-244AB
isolated doubler
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 TJ 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
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1
2
3
Modified JEDEC
Outline TO-244AB
Dimensions in millimeters and (inches)
1

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203DNQ... Series
Bulletin PD-20580 rev. B 10/02
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
203DNQ080
80
203DNQ100
100
Parameters
203DNQ Units Conditions
IF(AV) Max. Average Forward
Current * See Fig. 5 (Per Device)
200
A 50% duty cycle @ TC = 136 °C, rectangular wave form
IFSM Max.PeakOneCycleNon-Repetitive
SurgeCurrent (Per Leg) *SeeFig.7
EAS Non-RepetitiveAvalancheEnergy
(Per Leg)
IAR RepetitiveAvalancheCurrent
(Per Leg)
16,000
2,100
15
1
5µs Sineor3µsRect.pulse Following any rated
A load condition and with
10ms Sine or 6ms Rect. pulse rated VRRM applied
mJ TJ = 25 °C, IAS = 1 Amps, L = 30 mH
A Currentdecayinglinearlytozeroin1µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
203DNQ Units Conditions
VFM Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
0.86
1.03
0.70
0.84
IRM Max. Reverse Leakage Current
(Per Leg) * See Fig. 2 (1)
3
40
VF(TO) Threshold Voltage
rt Forward Slope Resistance
CT Max. Junction Capacitance (Per Leg)
LS Typical Series Inductance (Per Leg)
dv/dt Max. Voltage Rate of Change
(Rated VR )
0.50
1.08
2,650
7.0
10000
Thermal-Mechanical Specifications
V @ 100A
V @ 200A
TJ = 25 °C
V @ 100A
V @ 200A
TJ = 125 °C
mA TJ = 25 °C
mA TJ = 125 °C
V TJ = TJ max.
m
VR = rated VR
pF VR = 5VDC (test signal range 100KHz to 1MHz) 25°C
nH From top of terminal hole to mounting plane
V/ µs
(1) Pulse Width < 300µs, Duty Cycle <2%
Parameters
203DNQ Units Conditions
TJ Max.JunctionTemperature Range
Tstg Max.StorageTemperature Range
RthJC Max.Thermal Resistance Junction
to Case (Per Leg)
RthJC Max.Thermal Resistance Junction
to Case(Per Package)
RthCS Typical Thermal Resistance,Case
to Heatsink
wt Approximate Weight
T MountingTorque
Min.
Max.
Mounting Torque Center Hole Typ.
Terminal Torque
Min.
Max.
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- 55 to 175
- 55 to 175
0.40
°C
°C
°C/W DCoperation
* See Fig. 4
0.20 °C/W DCoperation
0.10 °C/W Mountingsurface,smoothandgreased
79(2.80) g(oz.)
24 (20) Kg-cm
35 (30) (Ibf-in)
13.5 (12)
35 (30)
46 (40)
TO-244ABIsolated Modified JEDEC
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1000
100
10
TJ = 175˚C
T = 125˚C
J
T = 25˚C
J
203DNQ... Series
Bulletin PD-20580 rev. B 10/02
1000
100
T J= 175˚C
150˚C
10 125˚C
100˚C
1
75˚C
0.1 50˚C
0.01 25˚C
0.001
0
20 40 60 80 100
Reverse Voltage - VR (V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (PerLeg)
1
0 0.2 0.4 0.6 0.8 1 1.2 1.4
Forward Voltage Drop - VFM (V)
Fig.1-Max. Forward Voltage Drop Characteristics
(PerLeg)
1
ReverseVoltage-VR(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
D = 0.75
D = 0.50
D = 0.33
0.1 D = 0.25
D = 0.20
PDM
0.01
0.001
0.00001
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Single Pulse
(Thermal Resistance)
t1
t2
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.0001
0.001
0.01
0.1
t1,RectangularPulseDuration(Seconds)
1
Fig. 4 - Max. Thermal Impedance Z thJC Characteristics (Per Leg)
10
3