Bulletin PD-2.262 rev. B 05/02
243NQ...(R) SERIES
SCHOTTKY RECTIFIER
240 Amp
D-67
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 240Apk, T
J
=125°C
range
Description/Features
Units
A
V
A
V
°C
The 243NQ high current Schottky rectifier module series has
been optimized for low reverse leakage at high temperature.
The proprietary barrier technology allows for reliable opera-
tion up to 175° C junction temperature. Typical applications
are in switching power supplies, converters, free-wheeling
diodes, and reverse battery protection.
175° C T
J
operation
Unique high power, Half-Pak module
Replaces four parallel DO-5's
Easier to mount and lower profile than DO-5's
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
243NQ...
240
80 to 100
25,500
0.72
- 55 to 175
243NQ100
Lug Terminal Anode
Base Cathode
243NQ100R
Lug Terminal Cathode
Base Anode
Outline D-67 HALF PAK Module
Dimensions in millimeters and (inches)
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1
243NQ...(R) Series
Bulletin PD-2.262 rev. B 05/02
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
243NQ080
80
243NQ090
90
243NQ100
100
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
* See Fig. 5
I
FSM
E
AS
I
AR
Max. Peak One Cycle Non-Repetitive
Surge Current * See Fig. 7
Non-Repetitive Avalanche Energy
Repetitive Avalanche Current
243NQ Units
240
25,500
3300
15
1
A
Conditions
50% duty cycle @ T
C
= 120° C, rectangular wave form
Following any rated
load condition and
10ms Sine or 6ms Rect. pulse with rated V
RRM
applied
5µs Sine or 3µs Rect. pulse
T
J
= 25 °C, I
AS
= 1 Amps, L = 30 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
A
mJ
A
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
* See Fig. 1
(1)
243NQ Units
0.86
1.01
0.72
0.86
V
V
V
V
mA
mA
pF
nH
V/ µs
@ 240A
@ 480A
@ 240A
@ 480A
T
J
= 25 °C
T
J
= 125 °C
Conditions
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
C
T
L
S
Max. Reverse Leakage Current (1)
* See Fig. 2
Max. Junction Capacitance
Typical Series Inductance
6
80
5500
5.0
10000
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25 °C
From top of terminal hole to mounting plane
(Rated V
R
)
dv/dt Max. Voltage Rate of Change
(1) Pulse Width < 300µs, Duty Cycle < 2%
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
243NQ Units
-55 to 175
-55 to 175
0.20
0.15
°C
°C
°C/W
°C/W
DC operation
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case
R
thCS
Typical Thermal Resistance, Case to
Heatsink
wt
T
Approximate Weight
Mounting Torque
Terminal Torque
Case Style
Min.
Max.
Min.
Max.
* See Fig. 4
Mounting surface , smooth and greased
25.6 (0.9) g (oz.)
40 (35)
58 (50)
58 (50)
86 (75)
HALF PAK Module
Kg-cm
(Ibf-in)
Non-lubricated threads
2
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243NQ...(R) Series
Bulletin PD-2.262 rev. B 05/02
10
00
10
00
10
0
R v rs C r n - I ( A
e e e ure t
m)
R
1
0
1
.1
.0
1
.0 1
0
0
T =1 5 C
J 7°
1 0C
5°
1 5C
2°
1 0C
0°
7°
5C
5°
0C
2°
5C
In ta ta e u F rw rdC rre t - IF (A
s n nos o a
u n
)
10
0
2
0
4
0
6
0
8
0
10
0
T =1 5C
7°
J
T =1 5C
2°
J
T= 2 °
5C
J
1
0
Ju c nC p c n e- C (p )
n tio a a ita c
F
T
R v rs V lta e- V (V
ee e o g
R )
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
100
00
T =2 °
5C
J
1
0
.1
.2
.3
.4
.5
.6
.7
.8
.9
1 1
.1
10
00
0 1 2 3 4 5 6 7 8 9 0 1
0 0 0 0 0 0 0 0 01 01 0
R v rs V lta e- V (V
ee e o g
)
R
F rw rdV lta eD p- V M )
o a
o g ro
F (V
Fig. 1 - Maximum Forward Voltage Drop Characteristics
1
T e a Im e a c - Zth C(° /W
h rm l p d n e
C )
J
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
.1
D=0 0
.5
D=0 3
.3
D=0 5
.2
D=0 7
.1
P
M
D
.0
1
D=0 8
.0
t
1
t2
N te :
o s
1 D tyfa to D= t1/ t2
. u
c r
2 P a T =P xZ
. ek
+T
J D
M th C C
J
.0
1
.1
1
1
0
10
0
S g P ls
in le u e
(T e a R s ta c )
h rm l e is n e
.0 1
0
.0 0 1
00
.0 0
01
.0 1
0
t , R c n u r P ls D ra n(S c n s
e ta g la u e u tio
eod)
1
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
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243NQ...(R) Series
Bulletin PD-2.262 rev. B 05/02
10
8
A w b C s T m e a re- (° )
llo a le a e e p r tu
C
10
7
10
6
10
5
10
4
10
3
10
2
0
D
C
23 Q
4N
R J (D ) =0 0 C
.2 ° /W
th C C
20
5
D=0 8
.0
D=0 7
.1
.2
2 0 D=0 5
0
D=0 3
.3
D=0 0
.5
10
5
R SL it
M im
A e g P w r L s - (W tts
v ra e o e o s
a )
10
0
D
C
5
0
5
0
10 10 20 20 30 30
0
5
0
5
0
5
0
0
5
0
10 10 20 20 30 30
0
5
0
5
0
5
A e g F rw rdC rre t - IF V (A
v ra e o a
u n
(A ) )
A e g F rw rdC rre t - I
v ra e o a
u n
(A
)
F V
(A )
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
100000
FSM
Fig. 6 - Forward Power Loss Characteristics
At Any Rated Load Condition
And With Rated V
RRM
Applied
Following Surge
Non-Repetitive Surge Current - I
(A)
10000
1000
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
H IG H-SPE ED
SW ITC H
FRE E-W H EEL
D IO D E
40H FL40 S02
V d = 25 V olt
D UT
IRFP460
R g = 25 oh m
+
C URRE NT
M O N ITO R
Fig. 8 - Unclamped Inductive Test Circuit
4
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243NQ...(R) Series
Bulletin PD-2.262 rev. B 05/02
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. 05/02
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