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 high current Schottky rectifier module series
has been optimized for low reverse leakage at high tempera-
ture.
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 TJ operation
Center tap module - Isolated Base
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
SCHOTTKY RECTIFIER 200 Amp
203CMQ... SERIES
www.irf.com 1
Bulletin PD-20565 rev. B 08/01
Modified JEDEC
Outline TO-244AB Isolated
Dimensions in millimeters and (inches)
2
LUG
T
ERMINAL
ANODE 1
LUG
TERMINAL
ANODE 3
COMMON
CATHODE
ISOLATED BASE
203CMQ... Series
2
Bulletin PD-20565 rev. B 08/01
www.irf.com
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) 40 mA TJ = 125 °C
VF(TO) Threshold Voltage 0.50 V TJ = TJ max.
rtForward Slope Resistance 1.08 mΩ
CTMax. Junction Capacitance (Per Leg) 2,650 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 7.0 nH From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change 10000 V/ µs (Rated VR)
VRMS Insulation Voltage 1000 V
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 m J 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. 24 (20)
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
Thermal-Mechanical Specifications
Parameters 203CMQ Units Conditions
Kg-cm
(Ibf-in)
203CMQ... Series
3
Bulletin PD-20565 rev. B 08/01
www.irf.com
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
0 0.2 0.4 0.6 0.8 1 1.2 1.4
FM
F
Instantaneous Forward Current - I (A)
T = 175 C
T = 125 C
T = 25 C
J
J
J
Forward Voltage Drop - V (V)
0.001
0.01
0.1
1
10
100
1000
020406080100
R
R
150 C
125 C
100 C
75 C
50 C
25 C
Reverse Current - I (mA)
T = 175 C
J
Reverse Voltage - V (V)
100
1000
10000
0 102030405060708090100110
T = 25 C
J
R
T
Junction Capacitance - C (pF)
Reverse Voltage - V (V)
0.001
0.01
0.1
1
0.00001 0.0001 0.001 0.01 0.1 1 10 100
thJC
t , Rectangular Pulse Duration (Seconds)
Single Pulse
(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 factor D = t / t
2. Peak T = P x Z + T
J
DM
thJC C
2
1
2
t
1
t
P
DM
203CMQ... Series
4
Bulletin PD-20565 rev. B 08/01
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
DIO DE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SW ITCH
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 VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1
= 80% rated VR
50
60
70
80
90
100
110
120
130
140
150
160
170
180
0 255075100125150
DC
Allowable Case Temperature - ( C)
F(AV)
see note (2)
Average Forw ard Current - I (A)
Square wave (D = 0.50)
80% Rated V applied
R
0
10
20
30
40
50
60
70
80
90
100
0 25 50 75 100 125 150
DC
Average Power Loss - (Watts)
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-Repetitive Surge Current - I (A)
At Any Rated Load Condition
And W ith Rated V Applied
Following Surge
RRM
Square Wave Pulse Duration - t (microsec)
203CMQ... Series
5
Bulletin PD-20565 rev. B 08/01
www.irf.com
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. 08/01
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.
Ordering Information Table
Device Code
1 2 3
1- Current Rating: 200A
2- Common Cathode
3- Module
4- Schottky Q Series
5- Voltage Rating:
203 C M Q 100
4 5
080 = 80V
100 = 100V
