The 403CMQ high current 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 - 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
Major Ratings and Characteristics
IF(AV) Rectangular 400 A
waveform
VRRM Range 80 to 100 V
IFSM @ tp = 5 µs sine 25,500 A
VF@
200Apk, TJ=125°C 0.69 V
(per leg)
TJrange - 55 t o 1 75 °C
Characteristics 403CMQ... Units
SCHOTTKY RECTIFIER
403CMQ... Series
400 Amp
Bulletin PD-20726 rev. B 08/01
1
TO-244AB Isolated
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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
403CMQ... Series
www.irf.com
Bulletin PD-20726 rev. B 08/01
2
Parameters
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
Absolute Maximum Ratings
Following any rated
load condition and with
rated VRRM applied
Parameters 403CMQ Units Conditions
A
IF(AV) Max. Average Forward Current ( Per Leg) 200 A 50% duty cycle @ TC = 85 °C, rectangular wave form
( Per Device) 400
IFSM Max. Peak One Cycle Non-Repetitive 25500 5µs Sine or 3µs Rect. pulse
Surge Current (Per Leg) 3300 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
(1) Pulse Width < 300µs, Duty Cycle <2%
TJMax. Junction Temperature Range -55 to 175 °C
Tstg Max. Storage Temperature Range -55 to 175 °C
RthJC Max. Thermal Resistance Junction 0.40 °C/W DC operation
to Case (Per Leg)
RthJC Max. Thermal Resistance Junction 0.20 °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 Base 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 403CMQ Units Conditions
VFM Max. Forward Voltage Drop 0.83 V @ 200A
(Per Leg) (1) 0.97 V @ 400A
0.69 V @ 200A
0.82 V @ 400A
IRM Max. Reverse Leakage Current 6 mA TJ = 25 °C
(Per Leg) (1) 140 mA TJ = 125 °C
CTMax. Junction Capacitance (Per Leg) 5500 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 5.0 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
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Parameters 403CMQ Units Conditions
Kg-cm
(Ibf-in)
Electrical Specifications
10080
403CMQ080 403CMQ100
403CMQ... Series
3
Bulletin PD-20726 rev. B 08/01
www.irf.com
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
Fig. 1 - Max. Forward Voltage Drop Characteristics
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics
Forward Voltage Drop - V FM (V)
Instantaneous Forward Current - I F (A)
Reverse Current - I R (mA)
Reverse Voltage - V R (V)
Reverse Voltage - VR (V)
Junction Capacitance - C T
(pF)
t1, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z thJC (°C/W)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
1
10
100
1000
0 0.3 0.6 0.9 1.2
T = 175˚C
T = 125˚C
T = 25˚C
J
J
J
0
.001
0.01
0.1
1
10
100
1000
0 20406080100
150˚C
125˚C
100˚C
75˚C
50˚C
25˚C
T = 175˚C
J
1000
10000
0 20 40 60 80 100 120
T = 25˚C
J
0
.001
0.01
0.1
1
0.00001 0.0001 0.001 0.01 0.1 1 10 100
Single Pulse
(Thermal Resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
J
DM
thJC C
2
1
403CMQ... Series
www.irf.com
Bulletin PD-20726 rev. B 08/01
4
Fig. 8 - Unclamped Inductive Test Circuit
FREE-WHEEL
D IO 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
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Average Forward Current - I F(AV)
(A) Average Forward Current - I F(AV) (A)
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
Allowable Case Temperature (°C)
Average Power Loss (Watts)
Non-Repetitive Surge Current - I FSM (A)
0
40
80
120
160
200
0 100 200 300
DC
see note (2)
Square wave (D = 0.50)
Rated V applied
R
1000
10000
100000
10 100 1000 10000
At Any Rated Load Condition
And With Rated V Applied
Following Surge RRM
0
50
100
150
200
0 50 100 150 200 250 300
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
403CMQ... Series
5
Bulletin PD-20726 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: 400A
2- Common Cathode
3- Module
4- Schottky Q Series
5- Voltage Rating:
403 C M Q 100
4 5
080 = 80V
100 = 100V
