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Bulletin PD-20723 rev. B 07/01
409CNQ... SERIES
SCHOTTKY RECTIFIER
Major Ratings and Characteristics
Characteristics 409CNQ... Units
I
Rectangular 400 A
F(AV)
waveform
V
range 135 to 150 V
RRM
I
@ tp = 5 µs sine 20000 A
FSM
VF@ 200Apk, TJ=125°C 0.72 V
(per leg)
TJrange - 55 to 17 5 °C
80.01 [3. 150]
40.26 [1. 585]
39.75 [1. 565]
COMMON
CATHODE
7.49 [.295]
2X Ø
6.99 [.275]
23.55 [.927]
20.42 [.804]
34.925 [1.375]
REF.
63.50 [2. 500]
60.96 [2. 400]
400 Amp
TO-244AB
Description/Features
The 409CNQ 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
10.41 [.410]
Ø
9.65 [.380]
20.32 [.800]
17.78 [.700]
4.95 [.195]
Ø
4.70 [.185]
1/4-20 SLOTTED HEX
15.75 [.620]
14.99 [.590]
LUG
TERMINAL
ANODE 1
COMMON CATHODE
BASE
LUG
TERMINAL
ANODE 2
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92.71 [3. 650]
90.17 [3. 550]
NOTES:
1. DIMENSIONS ARE SHOWN IN MILLIMET ERS [INCHES].
2. CONTROLLING DIMENSION: MILLIMETER
3.35 [.132]
3.02 [.119]
Modified JEDEC
Outline TO-244AB
Dimensions in millimeters and (inches)
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409CNQ... Series
Bulletin PD-20723 rev. B 07/01
Voltage Ratings
Part number 409CNQ135 409CNQ150
VRMax. DC Reverse Voltage (V)
V
Max. Working Peak Reverse Voltage (V)
RWM
135 150
Absolute Maximum Ratings
Parameters 409CNQ Units Conditions
I
Max. Average Forward Current (Per leg) 200 A 50% duty cycle @ TC = 125 °C, rectangular wave form
F(AV)
* See Fig. 5 (Per device ) 400
I
Max. Peak One Cycle Non-Repetitive 20000 5µs Sine or 3µs Rect. pulse
FSM
Surge Current (Per Leg) * See Fig. 7 2300 10ms Sine or 6ms Rect. pulse
EASNon-Repetitive Avalanche Energy 15 mJ T
A
= 25 °C, I
J
= 1 Amps, L = 30 mH
AS
(Per Leg)
IARRepetitive 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
Following any rated
load condition and with
rated V
RRM
applied
Electrical Specifications
Parameters 409CNQ Units Conditions
VFMMax. Forward Voltage Drop 1.03 V @ 200A
(Per Leg) * See Fig. 1 (1) 1.21 V @ 400A
0.72 V @ 200A
0.83 V @ 400A
IRMMax. Reverse Leakage Current 6 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 85 mA TJ = 125 °C
CTMax. Junction Capacitance (Per Leg) 6000 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)
Thermal-Mechanical Specifications
Parameters 409CNQ Units Conditions
TJMax. Junction Temperature Range - 55 to 175 °C
T
Max. Storage Temperature Range - 55 to 175 °C
stg
R
Max. Thermal Resistance Junction 0.20 °C/W DC operation * See Fig. 4
thJC
to Case (Per Leg)
R
Max. Thermal Resistance Junction 0.10 °C/W DC operation
thJC
to Case (Per Package)
R
Typical Thermal Resistance, Case 0.10 °C/W Mounting surface , smooth and greased
thCS
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 Modified JEDEC
Kg-cm
(Ibf-in)
TJ = 25 °C
TJ = 125 °C
VR = rated V
(1) Pulse Width < 300µs, Duty Cycle <2%
R
2
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409CNQ... Series
0
0
Bulletin PD-20723 rev. A 07/01
1000
100
(A)
F
10
Instantaneous Forward Current - I
T = 175˚C
J
T = 125˚C
J
T = 25˚C
J
1000
T = 175˚C
10
J
150˚C
125˚C
1
100˚C
(mA)
R
100
75˚C
0.1
Reverse Current - I
0.01
.001
0 30 60 90 120 150
50˚C
25˚C
Reverse Voltage - V R (V)
10000
(pF)
T
T = 25˚C
J
1000
1
0 0.4 0.8 1.2 1.6 2
Forward Voltage Drop - VFM (V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
1
0.1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
(°C/W)
thJC
0.01
Single Pulse
Thermal Impedance Z
.001
0.00001 0.0001 0.001 0.01 0.1 1 10 100
(Thermal Resistance)
t1, Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
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Junction Capacitance - C
100
0 306090120
Fig. 3 - Typical Junction Capacitance
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
J
DM
Characteristics
thJC
Reverse Voltage - V R (V)
Vs. Reverse Voltage
t
1
t
2
1
2
C
thJC
3
Page 4
409CNQ... Series
Bulletin PD-20723 rev. B 07/01
180
160
DC
140
120
Square wave (D = 0.50)
100
Rated V applied
R
80
Allowable Case Temperature (°C)
see note (2)
60
0 50 100 150 200 250 300
Average Forward Current - I
F (AV)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
100000
(A)
FSM
10000
Average Power Loss (Watts)
(A)
Fig. 6 - Forward Power Loss Characteristics
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
200
D = 0.20
D = 0.25
160
D = 0.33
D = 0.50
D = 0.75
120
RMS Limit
80
40
0
0 50 100 150 200 250 300
Average Forward Current - I
F (AV)
DC
(A)
DUT
CURRENT
MONITOR
(2) Formula used: TC = TJ - (Pd + Pd
Pd = Forward Power Loss = I
Pd
= Inverse Power Loss = VR1 x IR (1 - D); IR @ V
REV
4
Non-Repetitive Surge Current - I
1000
10 100 1000 10000
Square Wave Pulse Duration - t
Fig. 7 - Max. Non-Repetitive Surge Current
L
IRFP460
Rg = 25 ohm
Fig. 8 - Unclamped Inductive Test Circuit
) x R
;
thJC
/ D) (see Fig. 6);
F(AV)
= rated V
R1
R
F(AV)
REV
x VFM @ (I
(microsec)
p
HIGH-SPEED
SW ITCH
FREE-WHEEL
D IO D E
40HFL40S02
Vd = 25 Volt
+
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Page 5
409CNQ... Series
Bulletin PD-20723 rev. A 07/01
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.
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. 07/01
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