SCHOTTKY RECTIFIER 200 Amp
203CMQ... SERIES
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Preliminary Data Sheet PD-20565 06/98
IF(AV) Rectangular 200 A
waveform
VRRM range 80 to 100 V
IFSM @ tp = 5 µs sine 16,000 A
VF@ 100Apk, TJ=125°C 0.70 V
(per leg)
TJrange - 55 to 175 °C
Characteristics 203CMQ... Units
Major Ratings and Characteristics The 203CMQ center tap Schottky rectifier 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
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
TO-244AB isolated
Modified JEDEC
Outline TO-244AB Isolated
Dimensions in millimeters and (inches)
203CMQ... Series
2
Preliminary Data Sheet PD-20565 06/98
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VFM Max. Forward Voltage Drop 0.86 V @ 100A
(Per Leg) * See Fig. 1 ( 1 ) 1.03 V @ 200A
0.70 V @ 100A
0.84 V @ 200A
IRM Max. Reverse Leakage Current 3 mA TJ = 25 °C
(Per Leg) * See Fig. 2 ( 1 ) 4 0 mA TJ = 125 °C
VF(TO) Threshold Voltage 0.50 V TJ = TJ max.
rtForward Slope Resistance 1.08 m
CTMax. Junction Capacitance (Per Leg) 2, 650 p F VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 7 .0 n H From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change 10,000 V/ µ s
(Rated VR)
IF(AV) Max. Average Forward (Per Leg) 100 A 50% duty cycle @ TC = 110 °C, rectangular wave form
Current * See Fig. 5 (Per Device) 200
IFSM Max. Peak One Cycle Non-Repetitive 16,000 5µs Sine or 3µs Rect. pulse
Surge Current (Per Leg) * See Fig. 7 2,100 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 15 mJ TJ
= 25 °C, IAS
= 1 Amps, L = 30 mH
(Per Leg)
IAR Repetitive Avalanche Current 1 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical
Part number 203CMQ080 203CMQ100
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V) 80 100
Voltage Ratings
Absolute Maximum Ratings
Following any rated
load condition and with
rated VRRM applied
A
Parameters 203CMQ Units Conditions
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Electrical Specifications
(1) Pulse Width < 300µs, Duty Cycle <2%
Parameters 203CMQ Units Conditions
TJMax. Junction Temperature Range -55 to 175 °C
Tstg Max. Storage Temperature Range -55 to 175 °C
RthJC Max. Thermal Resistance Junction 0.70 °C/W DC operation * See Fig. 4
to Case (Per Leg)
RthJC Max. Thermal Resistance Junction 0.35 °C/W DC operation
to Case (Per Package)
RthCS Typical Thermal Resistance, Case 0.10 °C/W Mounting surface , smooth and greased
to Heatsink
wt Approximate Weight 79 (2.80) g (oz.)
T Mounting Torque Min. 40 (35)
Max. 58 (50)
Mounting Torque Center Hole Typ. 17 (15)
Terminal Torque Min. 58 (50)
Max. 86 (75)
Case Style TO - 244AB Isolated Modified JEDEC
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
Parameters 203CMQ Units Conditions
203CMQ... Series
3
Preliminary Data Sheet PD-20565 06/98
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Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 4 - Max. Thermal Impedance ZthJC
Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
1
10
100
1000
00.20.40.60.811.21.4
FM
F
Inst anta ne ous Forward C urrent - I (A)
T = 17 5°C
T = 12 5°C
T = 25°C
J
J
J
Forward Voltage Dro p - V ( V)
0.001
0.01
0.1
1
10
100
1000
0 20406080100
R
R
150°C
125°C
100°C
75°C
50°C
25°C
Re ve rs e Current - I (mA)
T = 175°C
J
Rever se Vo ltage - V (V)
100
1000
10000
0 102030405060708090100110
T = 25°C
J
R
T
J u n c tion C ap acita n c e - C (p F )
Rever se Vo ltage - V ( V)
0.001
0.01
0.1
1
0.00001 0.0001 0.001 0.01 0.1 1 10 100
thJC
t , Recta ngular Puls e Duration (Seconds)
Single P ulse
(Thermal Resistance)
1
Thermal Impedance Z (°C/W)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
Notes:
1 . Duty f acto r D = t / t
2. Peak T = P x Z + T
J
DM
thJC C
21
2
t
1
t
P
DM
203CMQ... Series
4
Preliminary Data Sheet PD-20565 06/98
www.irf.com
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
FREE-WHEEL
DIODE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ;
Pd = Forward Power Loss = IF(AV) x V FM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x I R (1 - D); IR @ VR1 = 80% rated VR
50
60
70
80
90
100
110
120
130
140
150
160
170
180
0 25 50 75 100 125 150
DC
Allowable Case Temperature - (°C)
F(AV)
see note (2)
Av erage Forward Current - I (A)
S quare wave (D = 0. 50)
80 % Rated V applie d
R
0
10
20
30
40
50
60
70
80
90
100
0 25 50 75 100 125 150
DC
Aver a ge Pow e r Los s - (Wa t ts )
F(AV)
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
Average Forw ard Current - I (A)
1000
10000
100000
10 100 1000 10000
FSM
p
Non-Repet itive Surge Current - I (A)
At Any Rate d Lo ad C ondition
And With Rated V Applied
Fo llowi ng Surge
RRM
S q ua re W av e Pu lse Dura ti on - t (mi cr os e c )