Document
SCHOTTKY RECTIFIER
Bulletin PD-20579 rev. C 02/04
203DMQ... SERIES
200 Amp
Major Ratings and Characteristics
Characteristics
203DMQ... Units
IF(AV) Rectangular waveform
VRRM range
200
A
80 and 100 V
IFSM @ tp = 5 µs sine
16,000
A
VF @ 100Apk, TJ=125°C
0.70
V
(per leg)
TJ range
- 55 to 175
°C
TO-244AB isolated doubler
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 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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Modified JEDEC Outline TO-244AB Isolated Dimensions in millimeters and (inches)
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203DMQ... Series
Bulletin PD-20579 rev. C 02/04
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V) VRWM
Absolute Maximum Ratings
203DMQ080
203DMQ100
80
100
Max. Working Peak Reverse Voltage (V)
Parameters
IF(AV) Max. Average Forward Current * See Fig. 5 (Per Leg)
IFSM Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7
EAS Non-Repetitive Avalanche Energy (Per Leg)
IAR Repetitive Avalanche Current (Per Leg)
Electrical Specifications
203DMQ Units
Conditions
200
A 50% duty cycle @ TC = 107 °C, rectangular wave form
16,000 2,100
15
1
5µs Sine or 3µs Rect. 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 Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical
Parameters
203DMQ Units
Conditions
VFM Max. Forward Voltage Drop
0.86
(Per Leg) * See Fig. 1
(1)
1.03
0.70
0.84
IRM Max. Reverse Leakage Current
3
(Per Leg) * See Fig. 2 (1)
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 V V V mA mA V
mΩ pF nH V/ µs
@ 100A @ 200A @ 100A
@ 200A
TJ = 25 °C TJ = 125 °C TJ = TJ max.
TJ = 25 °C TJ = 125 °C VR = rated VR
VR = 5VDC, (test signal range 100KHz to 1MHz) 25°C From top of terminal hole to mounting plane
(1) Pulse Width < 300µs, Duty Cycle <2%
Parameters
203DMQ Units
Conditions
TJ Max. Junction Temperature Range Tstg Max. Storage Temperature Range
- 55 to 175 °C - 55 to 175 °C
RthJC Max. Thermal Resistance Junction to Case (Per Leg)
0.70 °C/W DC operation * See Fig. 4
RthJC Max. Thermal Resistance Junction to Case (Per Package)
0.35 °C/W DC operation
RthCS Typical Thermal Resistance, Case to Heatsink
0.10 °C/W Mounting surface , smooth and greased
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 Modified JEDEC
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Instantaneous Forward Current - I F (A)
1000 100 10
TJ = 175˚C T = 125˚C
J T = 25˚C
J
Reverse Current - I R (mA)
203DMQ... Series
Bulletin PD-20579 rev. C 02/04
1000 100
T J= 175˚C 150˚C
10
125˚C
1
100˚C
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 (Per Leg)
10000
1000
TJ = 25˚C
Junction Capacitance - C T (p F)
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 (Per Leg)
1 D = 0.75
D = 0.50 D = 0.33 D = 0.25
0.1 D = 0.20
100 0
20 40 60 80 100
Reverse Voltage - VR (V)
Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg)
Thermal Impedance Z thJC (°C/W)
PDM
0.01
Single Pulse (Thermal Resistance)
t1 t2
Notes: 1. Duty factor D = t1/ t2
0.001 0.00001 0.0001
2. Peak Tj = Pdm x ZthJC + Tc
0.001
0.01
0.1
1
10
100
t1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z thJC Characteristics (Per Leg)
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Allowable Case Temperature (°C) Non-Repetitive Surge Current - I FSM (A)
Average Power Loss (Watts)
203DMQ... Series
Bulletin PD-20579 rev. C 02/04
180
160
140 DC
120 80% Square Wave (D = 0.50)
100
see note (2)
80 0 50 100 150 200 250 300
Average Forward Current - IF(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg)
100000
At Any Rated Load Condition And With Rated Vrrm Applied Following Surge
250 D = 0.75 D = 0.50
200 D = 0.33 D = 0.25 D = 0.20
150
RMS Limit
DC
100
50
0 0 50 100 150 200 250 300
Average Forward Current - IF(AV) (A)
.