245NQ015PbF
Vishay High Power Products
Schottky Rectifier, 240 A
FEATURES
Lug terminal
anode
• 125 °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 245NQ.. 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 150 °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
= 75 °C
Range
CHARACTERISTICS
Rectangular waveform
VALUES
240
15
20 000
0.37
- 55 to 125
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
V
R
V
RWM
245NQ015PbF
15
25
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
= 73 °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
= 5 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
20 000
3000
12
2
mJ
A
A
UNITS
Document Number: 94464
Revision: 06-May-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
1
245NQ015PbF
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
0.52
0.61
0.37
045
80
4000
15 800
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 125
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: 94464
Revision: 06-May-08
245NQ015PbF
Schottky Rectifier, 240 A
Vishay High Power Products
10000
1000
Reverse Current - I
R
(mA)
100°C
1000
75°C
100
25°C
10
Tj = 100°C
Instantaneous Forward Current - I
F
(A)
100
1
0
3
6
9
12
15
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
100000
10
Junction Capacitance - C
T
(pF)
Tj = 75°C
10000
Tj = 25°C
1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Forward Voltage Drop - V
FM
(V)
1000
0
5
10
15
20
25
30
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: 94464
Revision: 06-May-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
3
245NQ015PbF
Vishay High Power Products
Schottky Rectifier, 240 A
200
120
Allowable Case Temperature (°C)
100
DC
80
60
40
20
0
0
40 80 120 160 200 240 280 320 360
Square wave (D=0.50)
80% rated Vr applied
see note (1)
Average Power Loss (Watts)
150
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS limit
100
DC
50
0
0
50
100 150 200 250 300 350
Average Forward Current - I
F (AV)
(A)
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 Conditions
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
Formula used: T
C
= T
J
- (Pd + Pd
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
(9)
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4
For technical questions, contact: ind-modules@vishay.com
Document Number: 94464
Revision: 06-May-08
245NQ015PbF
Schottky Rectifier, 240 A
Vishay High Power Products
ORDERING INFORMATION TABLE
Device code
24
1
1
2
3
4
5
6
-
-
-
-
-
-
5
2
N
3
Q
4
015 PbF
5
6
Average current rating (x 10)
Product silicon identification
N = Not isolated
Q = Schottky rectifier diode
Voltage rating (015 = 15 V)
Lead (Pb)-free
LINKS TO RELATED DOCUMENTS
Dimensions
http://www.vishay.com/doc?95020
Document Number: 94464
Revision: 06-May-08
For technical questions, contact: ind-modules@vishay.com
www.vishay.com
5
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