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81CNQ035ASM

P1-P3P4-P6P7-P9
Document Number: 94595 For technical questions, contact: diodestech@vishay.com
www.vishay.com
Revision: 16-Apr-10 1
Schottky Rectifier
New Generation 3 D-61 Package, 2 x 40 A
VS-81CNQ...A PbF Series
Vishay High Power Products
FEATURES
• 175 °C T
J
operation
• Center tap module
• Low forward voltage drop
• High frequency operation
• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
• Guard ring for enhanced ruggedness and long term
reliability
• 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)
• Compliant to RoHS directive 2002/95/EC
• Designed and qualified for industrial level
DESCRIPTION
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.
PRODUCT SUMMARY
I
F(AV)
2 x 40 A
V
R
35 V to 45 V
Base
common
cathode
Base
common
cathode
Common
cathode
Anode
2
Anode
1
12
3
Common
cathode
Anode
2
Anode
1
12
3
Anode
2
Anode
1
1
3
D-61-8
VS-81CNQ...APbF
VS-81CNQ...ASMPbF
D-61-8-SM
VS-81CNQ...ASLPbF
D-61-8-SL
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
I
F(AV)
Rectangular waveform 80 A
V
RRM
Range 35 to 45 V
I
FSM
t
p
= 5 μs sine 4600 A
V
F
40 Apk, T
J
= 125 °C (per leg) 0.54 V
T
J
Range - 55 to 175 °C
VOLTAGE RATINGS
PARAMETER SYMBOL VS-81CNQ035APbF VS-81CNQ040APbF VS-81CNQ045APbF UNITS
Maximum DC reverse voltage V
R
35 40 45 V
Maximum working peak reverse voltage V
RWM
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com For technical questions, contact: diodestech@vishay.com
Document Number: 94595
2 Revision: 16-Apr-10
VS-81CNQ...A PbF Series
Vishay High Power Products
Schottky Rectifier
New Generation 3 D-61 Package, 2 x 40 A
Note
(1)
Pulse width < 300 μs, duty cycle < 2 %
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average forward current
See fig. 5
I
F(AV)
50 % duty cycle at T
C
= 141 °C, rectangular waveform 80
A
Maximum peak one cycle
non-repetitive surge current per leg
See fig. 7
I
FSM
5 μs sine or 3 μs rect. pulse
Following any rated
load condition and with
rated V
RRM
applied
4600
10 ms sine or 6 ms rect. pulse 790
Non-repetitive avalanche energy per leg E
AS
T
J
= 25 °C, I
AS
= 8 A, L = 1.7 mH 54 mJ
Repetitive avalanche current per leg I
AR
Current decaying linearly to zero in 1 μs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
8A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum forward
voltage drop per leg
See fig. 1
V
FM
(1)
40 A
T
J
= 25 °C
0.60
V
80 A 0.74
40 A
T
J
= 125 °C
0.54
80 A 0.66
Maximum reverse
leakage current per leg
See fig. 2
I
RM
(1)
T
J
= 25 °C
V
R
= Rated V
R
5
mA
T
J
= 125 °C 45
Maximum junction capacitance per leg C
T
V
R
= 5 V
DC
(test signal range 100 kHz to 1 MHz) 25 °C 2600 pF
Typical series inductance per leg L
S
Measured lead to lead 5 mm from package body 5.5 nH
Maximum voltage rate of change dV/dt Rated V
R
10 000 V/μs
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction and storage
temperature range
T
J
, T
Stg
- 55 to 175 °C
Maximum thermal resistance,
junction to case per leg
R
thJC
DC operation
See fig. 4
0.85
°C/W
Maximum thermal resistance,
junction to case per package
DC operation 0.42
Typical thermal resistance,
case to heatsink
R
thCS
Mounting surface, smooth and greased
Device flatness < 5 mils
0.30
Approximate weight
7.8 g
0.28 oz.
Mounting torque
minimum 40 (35)
kgf · cm
(lbf · in)
maximum 58 (50)
Marking device
Case style D-61
81CNQ035A
81CNQ040A
81CNQ045A
Case style D-61-8-SM
81CNQ035ASM
81CNQ040ASM
81CNQ045ASM
Case style D-61-8-SL
81CNQ035ASL
81CNQ040ASL
81CNQ045ASL
Document Number: 94595 For technical questions, contact: diodestech@vishay.com
www.vishay.com
Revision: 16-Apr-10 3
VS-81CNQ...A PbF Series
Schottky Rectifier
New Generation 3 D-61 Package, 2 x 40 A
Vishay High Power Products
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
(Per Leg)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics (Per Leg)
Instantaneous Forward Current - I
F
(A)
Forward Voltage Drop - V
FM
(V)
0.1
1
10
100
1000
0 0.2 0.4 0.6 0.8 1
T = 175°C
T = 125°C
T = 25°C
J
J
J
Reverse Current - I
R
(mA)
Reverse Voltage - V
R
(V)
0.001
0.01
0.1
1
10
100
1000
0 5 10 15 20 25 30 35 40 45
150°C
125°C
100°C
75°C
50°C
25°C
Tj = 175°C
Junction Capacitance - C
T
(p F)
Reverse Voltage - V
R
(V)
100
1000
10000
0 1020304050
T = 25°C
J
t
1
, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z
thJC
(°C/W)
0.01
0.1
1
0.00001 0.0001 0.001 0.01 0.1 1 10 100
Single Pulse
(Thermal Resistance)
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
2
t
1
t
P
DM
P1-P3P4-P6P7-P9

81CNQ035ASM

Mfr. #:
Buy 81CNQ035ASM
Manufacturer:
Vishay Semiconductors
Description:
Schottky Diodes & Rectifiers 80 Amp 35 Volt Common Cathode
Lifecycle:
New from this manufacturer.
Delivery:
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