I
F(AV)
Rectangular 440 A
waveform
V
RRM
30 V
I
FSM
@ tp = 5 µs sine 27,000 A
V
F
@
220Apk, T
J
=125°C 0.41 V
(per leg)
T
J
range - 55 to 150 °C
Characteristics 440CNQ... Units
Major Ratings and Characteristics
The 440CNQ030 center tap, high current, Schottky rectifier
module has been optimized for very low forward voltage drop,
with moderate leakage. The proprietary barrier technology
allows for reliable operation up to 150 °C junction tempera-
ture. Typical applications are in switching power supplies,
converters, free-wheeling diodes, welding and reverse bat-
tery protection.
150 °C T
J
operation
Center tap module
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Description/Features
SCHOTTKY RECTIFIER
440CNQ030
440 Amp
www.irf.com
1
Bulletin PD-2.282 rev. C 07/01
BASE
ANODE 2
63.50 [2.500]
60.96 [2.400]
23.55 [.927]
20.42 [.804]
14.99 [.590]
15.75 [.620]
20.32 [.800]
17.78 [.700]
39.75 [1.565]
40.26 [1.585]
80.01 [3.150]
34.925 [1.375]
3.35 [.132]
3.02 [.119]
90.17 [3.550]
92.71 [3.650]
7.49 [.295]
6.99 [.275]
2X Ø
10.41 [.410]
9.65 [.380]
Ø
4.70 [.185]
4.95 [.195]
1/4-20 SLOTTED HEX
COMMON
CATHODE
REF.
TERMINAL
LUG
COMMON CATHODE
ANODE 1
TERMINAL
LUG
Ø
NOTES:
1. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
2. CONTROLLING DIMENSION: MILLIMETER
Modified JEDEC
Outline TO-244AB
Dimensions in millimeters and (inches)
440CNQ030 Series
2
Bulletin PD-2.282 rev. C 07/01
www.irf.com
Part number 440CNQ030
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
30
Voltage Ratings
Absolute Maximum Ratings
Following any rated
load condition and with
rated V
RRM
applied
A
I
F(AV)
Max. Average Forward Current 440 A 50% duty cycle @ T
C
= 115 °C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive 27,000 5µs Sine or 3µs Rect. pulse
Surge Current (Per Leg) * See Fig. 7 3000 10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy 198 mJ T
J
= 25 °C, I
AS
= 44 Amps, L = 0.20 mH
(Per Leg)
I
AR
Repetitive Avalanche Current 44 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Parameters 440CNQ Units Conditions
V
FM
Max. Forward Voltage Drop 0.50 V @ 220A
(Per Leg) * See Fig. 1 (1) 0.60 V @ 440A
0.41 V @ 220A
0.52 V @ 440A
I
RM
Max. Reverse Leakage Current 20 mA T
J
= 25 °C
(Per Leg) * See Fig. 2 (1) 1120 mA T
J
= 125 °C
C
T
Max. Junction Capacitance (Per Leg) 14,800 pF V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
L
S
Typical 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 V
R
)
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
Electrical Specifications
(1) Pulse Width < 300µs, Duty Cycle <2%
Parameters 440CNQ Units Conditions
T
J
Max. Junction Temperature Range -55 to 150 °C
T
stg
Max. Storage Temperature Range -55 to 150 °C
R
thJC
Max. Thermal Resistance Junction 0.20 °C/W DC operation * See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction 0.10 °C/W DC operation
to Case (Per Package)
R
thCS
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 Modified JEDEC
Thermal-Mechanical Specifications
Parameters 440CNQ Units Conditions
Kg-cm
(Ibf-in)
440CNQ030 Series
3
Bulletin PD-2.282 rev. C 07/01
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 Z
thJC
Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
1
10
100
1000
0.1.2.3.4.5.6.7.8.
FM
F
Instantaneous Forward Current - I (A)
For ward Vol tage Drop - V (V)
T = 150°C
T = 125°C
T = 25°C
J
J
J
.01
.1
1
10
100
1000
10000
0 5 10 15 20 25 30
R
R
125°C
100°C
75°C
50°C
25°C
Reverse Voltage - V (V)
Reverse Current - I (mA)
T = 150°C
J
.001
.01
.1
1
. 00001 . 0001 . 001 . 01 . 1 1 10 100
D = 0. 33
D = 0. 50
D = 0. 25
D = 0. 17
D = 0. 08
1
thJC
t , Rectangular Pul se Durati on (Seconds)
The r mal Impedance - Z (°C/W)
Single Pulse
(Thermal Resistance)
2
t
1
t
P
DM
Not es:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1
JDMthJC
C
2
1000
10000
100000
0 5 10 15 20 25 30 3
T = 25°C
J
Reverse Voltage - V (V)
R
T
Junction Capacitance - C (pF)
