241NQ045PbF
Vishay High Power Products
Schottky Rectifier, 240 A
FEATURES
Lug terminal
anode
• 175 °C T
J
operation
• Low forward voltage drop
• High frequency operation
RoHS
COMPLIANT
• Guard ring for enhanced ruggedness and long term
reliability
HALF-PAK (D-67)
Base
cathode
• Lead (Pb)-free
• Designed and qualified for industrial level
DESCRIPTION
The 241NQ.. 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,
freewheeling diodes, welding, and reverse battery
protection.
PRODUCT SUMMARY
I
F(AV)
240 A
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
I
F(AV)
V
RRM
I
FSM
V
F
T
J
t
p
= 5 µs sine
240 Apk, T
J
= 125 °C
Range
CHARACTERISTICS
Rectangular waveform
VALUES
240
45
25 000
0.64
- 55 to 175
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
V
R
V
RWM
241NQ045PbF
45
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average forward current
See fig. 5
Maximum peak one cycle
non-repetitive surge current
See fig. 7
Non-repetitive avalanche energy
Repetitive avalanche current
SYMBOL
I
F(AV)
TEST CONDITIONS
50 % duty cycle at T
C
= 144 °C, rectangular waveform
5 µs sine or 3 µs rect. pulse
I
FSM
10 ms sine or 6 ms rect. pulse
E
AS
I
AR
T
J
= 25 °C, I
AS
= 26 A, L = 1 mH
Current decaying linearly to zero in 1 µs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
Following any rated
load condition and with
rated V
RRM
applied
VALUES
240
25 000
3450
324
48
mJ
A
A
UNITS
Document Number: 94463
Revision: 06-May-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
1
241NQ045PbF
Vishay High Power Products
Schottky Rectifier, 240 A
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
240 A
Maximum forward voltage drop
See fig. 1
V
FM (1)
480 A
240 A
480 A
Maximum reverse leakage current
See fig. 2
Maximum junction capacitance
Typical series inductance
Maximum voltage rate of change
Note
(1)
Pulse width < 500 µs
I
RM (1)
C
T
L
S
dV/dt
T
J
= 25 °C
T
J
= 125 °C
TEST CONDITIONS
T
J
= 25 °C
T
J
= 125 °C
VALUES
0.80
1.11
0.64
0.86
20
1120
14 800
5.0
10 000
mA
pF
nH
V/µs
V
UNITS
V
R
= Rated V
R
V
R
= 5 V
DC
(test signal range 100 kHz to 1 MHz) 25 °C
From top of terminal hole to mounting plane
Rated V
R
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
Maximum junction and storage
temperature range
Maximum thermal resistance,
junction to case
Typical thermal resistance,
case to heatsink
Approximate weight
minimum
maximum
minimum
maximum
Non-lubricated threads
SYMBOL
T
J
, T
Stg
R
thJC
R
thCS
DC operation
See fig. 4
Mounting surface, smooth and greased
TEST CONDITIONS
VALUES
- 55 to 175
0.19
°C/W
0.05
30
1.06
3 (26.5)
4 (35.4)
3.4 (30)
5 (44.2)
HALF-PAK module
N·m
(lbf · in)
g
oz.
UNITS
°C
Mounting torque
Terminal torque
Case style
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For technical questions, contact: ind-modules@vishay.com
Document Number: 94463
Revision: 06-May-08
241NQ045PbF
Schottky Rectifier, 240 A
Vishay High Power Products
10000
1000
1000
T J = 175˚C
150˚C
Reverse Current - I
R
(mA)
100
125˚C
Tj = 175°C
10
1
0.1
0.01
0.001
0
10
100˚C
75˚C
50˚C
25˚C
Instantaneous Forward Current - I
F
(A)
100
20
30
40
50
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
10000
10
Junction Capacitance - C
T
(pF)
Tj = 125°C
T = 25˚C
J
Tj = 25°C
1
0.0
0.5
1.0
1.5
2.0
Forward Voltage Drop - V
FM
(V)
1000
0
10
20
30
40
50
60
Reverse Voltage - V
R
(V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Fig. 3 - Typical Junction Capacitance vs.
Reverse Voltage
1
(°C/W)
D = 0.75
D = 0.50
0.1
thJC
D = 0.33
D = 0.25
D = 0.20
Thermal Impedance Z
0.01
Single Pulse
(Thermal Resistance)
0.001
1E-05
1E-04
1E-03
1E-02
1E-01
1E+00
1E+01
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
Document Number: 94463
Revision: 06-May-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
3
241NQ045PbF
Vishay High Power Products
Schottky Rectifier, 240 A
250
180
Allowable Case Temperature (°C)
Average Power Loss (Watts)
170
160
150
140
130
120
110
100
0
50
100
150
200
250
300
Average Forward Current - I
F (AV)
(A)
Square wave (D=0.50)
80% rated Vr applied
see note (1)
200
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
150
RMS limit
100
DC
50
0
0
50
100 150 200 250 300 350
Average Forward Current - I
F (AV)
(A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Non-Repetitive Surge Current - I
FSM
(A)
100000
At Any Rated Load Condition
And With Rated VRRM Applied
Following Surge
10000
1000
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
High-speed
switch
Freewheel
diode
40HFL40S02
+ V
d
= 25 V
D.U.T.
IRFP460
R
g
= 25
Ω
Current
monitor
Fig. 8 - Unclamped Inductive Test Circuit
Note
(1)
Formula used: T = T - (Pd + Pd
C
J
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 6);
Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= Rated V
R
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4
For technical questions, contact: ind-modules@vishay.com
Document Number: 94463
Revision: 06-May-08
241NQ045PbF
Schottky Rectifier, 240 A
Vishay High Power Products
ORDERING INFORMATION TABLE
Device code
24
1
1
2
3
4
5
6
-
-
-
-
-
-
1
2
N
3
Q
4
045 PbF
5
6
Average current rating (x 10)
Product silicon identification
N = Not isolated
Q = Schottky rectifier diode
Voltage rating (045 = 45 V)
Lead (Pb)-free
LINKS TO RELATED DOCUMENTS
Dimensions
http://www.vishay.com/doc?95020
Document Number: 94463
Revision: 06-May-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
5
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