VS-81CNQ...A PbF Series
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Vishay Semiconductors
High Performance Schottky Rectifier
Gen 3, D-61 Package, 2 x 40 A
VS-81CNQ...APbF
FEATURES
Base
common
cathode
• 175 °C T
J
operation
• Center tap module
• Low forward voltage drop
3
Anode
2
Available
Available
1
Anode
1
2
Common
cathode
• High frequency operation
• High power discrete
• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
• Guard ring for enhanced ruggedness and long term
reliability
D-61-8
VS-81CNQ...ASMPbF
1
Anode
1
2
Common
cathode
3
Anode
2
• New fully transfer-mold low profile, small footprint, high
current package
• Through-hole versions are currently available for use in
lead (Pb)-free applications (“PbF” suffix)
• Designed and qualified for industrial level
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
Note
*
This datasheet provides information about parts that are
RoHS-compliant and / or parts that are non-RoHS-compliant. For
example, parts with lead (Pb) terminations are not RoHS-compliant.
Please see the information / tables in this datasheet for details.
D-61-8-SM
VS-81CNQ...ASLPbF
Base
common
cathode
1
Anode
1
3
Anode
2
D-61-8-SL
DESCRIPTION
PRODUCT SUMMARY
Package
I
F(AV)
V
R
V
F
at I
F
I
RM
max.
T
J
max.
Diode variation
E
AS
D-61
2 x 40 A
35 V to 45 V
0.60
45 mA at 125 °C
175 °C
Common cathode
54 mJ
The center tap Schottky rectifier module 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 switching
power supplies, converters, freewheeling diodes, and
reverse battery protection.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
I
F(AV)
V
RRM
I
FSM
V
F
T
J
Range
t
p
= 5 μs sine
40 A
pk
, T
J
= 125 °C (per leg)
Range
CHARACTERISTICS
Rectangular waveform
VALUES
80
35 to 45
4600
0.54
-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
VS-81CNQ035APbF
35
VS-81CNQ040APbF
40
VS-81CNQ045APbF
45
UNITS
V
Revision: 17-Jun-15
Document Number: 94595
1
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VS-81CNQ...A PbF Series
www.vishay.com
Vishay Semiconductors
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average forward current
See fig. 5
Maximum peak one cycle non-repetitive
surge current per leg
See fig. 7
Non-repetitive avalanche energy per leg
Repetitive avalanche current per leg
SYMBOL
I
F(AV)
TEST CONDITIONS
50 % duty cycle at T
C
= 141 °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
Following any rated
load condition and with
rated V
RRM
applied
VALUES
80
4600
790
54
8
mJ
A
A
UNITS
T
J
= 25 °C, I
AS
= 8 A, L = 1.7 mH
Current decaying linearly to zero in 1 μs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
40 A
Maximum forward voltage drop per leg
See fig. 1
V
FM (1)
80 A
40 A
80 A
Maximum reverse leakage current per leg
See fig. 2
Maximum junction capacitance per leg
Typical series inductance per leg
Maximum voltage rate of change
Note
(1)
Pulse width < 300 μs, duty cycle < 2 %
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
V
R
= Rated V
R
VALUES
0.60
0.74
0.54
0.66
5
45
2600
5.5
10 000
mA
pF
nH
V/μs
V
UNITS
V
R
= 5 V
DC
(test signal range 100 kHz to 1 MHz) 25 °C
Measured lead to lead 5 mm from package body
Rated V
R
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
Maximum junction and storage
temperature range
Maximum thermal resistance,
junction to case per leg
Maximum thermal resistance,
junction to case per package
Typical thermal resistance,
case to heatsink
Approximate weight
Mounting torque
minimum
maximum
Case style D-61
SYMBOL
T
J
, T
Stg
DC operation
See fig. 4
DC operation
R
thCS
Mounting surface, smooth and greased
Device flatness < 5 mils
TEST CONDITIONS
VALUES
-55 to +175
0.85
0.42
0.30
7.8
0.28
40 (35)
58 (50)
g
oz.
kgf · cm
(lbf · in)
°C/W
UNITS
°C
R
thJC
81CNQ035A
81CNQ040A
81CNQ045A
81CNQ035ASM
Marking device
Case style D-61-8-SM
81CNQ040ASM
81CNQ045ASM
81CNQ035ASL
Case style D-61-8-SL
81CNQ040ASL
81CNQ045ASL
Revision: 17-Jun-15
Document Number: 94595
2
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VS-81CNQ...A PbF Series
www.vishay.com
Vishay Semiconductors
1000
T
J
= 175 °C
100
150 °C
10
1
0.1
0.01
0.001
125 °C
100 °C
75 °C
50 °C
25 °C
I
F
- Instantaneous Forward Current (A)
1000
100
10
T
J
= 175 °C
T
J
= 125 °C
T
J
= 25 °C
1
0.1
0
0.2
0.4
0.6
0.8
1
I
R
- Reverse Current (mA)
0
5
10
15
20
25
30
35
40
45
V
FM
- Forward Voltage Drop (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
V
R
- Reverse Voltage (V)
Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage
(Per Leg)
10 000
C
T
- Junction Capacitance (pF)
T
J
= 25 °C
1000
100
0
10
20
30
40
50
V
R
- Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)
Z
thJC
- Thermal Impedance (°C/W)
1
D = 0.50
D = 0.33
D = 0.25
D = 0.17
0.1
D = 0.08
P
DM
t
1
t
2
Single
Pulse
(Thermal Resistance)
0.01
0.00001
0.0001
0.001
0.01
0.1
1
10
100
Notes:
1. Duty factor D = t
1
/ t
2
2. Peak T
J
= P
dm
x Z
thJC
+ Tc
t
1
- Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics (Per Leg)
Revision: 17-Jun-15
Document Number: 94595
3
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VS-81CNQ...A PbF Series
www.vishay.com
Vishay Semiconductors
32
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Limit
DC
180
Allowable Case Temperature (°C)
R
thJC
(DC) = 0.85 °C/W
170
Average Power Loss (W)
28
24
20
16
12
8
4
160
DC
150
140
0
10
20
30
40
50
60
0
0
10
20
30
40
50
60
I
F(AV)
- Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current (Per Leg)
I
F(AV)
- Average Forward Current (A)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
I
FSM
- Non-Repetitive
Surge
Current (A)
10 000
1000
At any rated load condition
and with rated V
rrm
applied
following
surge
100
10
100
1000
10 000
t
p
-
Square
Wave Pulse Duration (μs)
Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)
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
Revision: 17-Jun-15
Document Number: 94595
4
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VS-81CNQ...A PbF Series
www.vishay.com
ORDERING INFORMATION TABLE
Vishay Semiconductors
Device code
VS-
1
81
2
C
3
N
4
Q
5
045
6
A
7
PbF
8
1
-
-
-
-
-
-
-
Vishay Semiconductors product
Current rating (80 A)
Circuit configuration:
C = common cathode
Package:
N = D-61
Schottky “Q” series
Voltage ratings
Package style:
A = D-61-8
ASM = D-61-8-SM
ASL = D-61-8-SL
2
3
4
5
6
7
035 = 35 V
040 = 40 V
045 = 45 V
8
-
None = standard production
PbF = lead (Pb)-free
Standard pack quantity: A = 10 pieces; ASM/ASL = 20 pieces
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
www.vishay.com/doc?95354
www.vishay.com/doc?95356
Revision: 17-Jun-15
Document Number: 94595
5
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
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