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SCHOTTKY RECTIFIER
PD-2.216 rev. C 01/99
80CNQ... SERIES
80 Amp
Major Ratings and Characteristics
Characteristics
80CNQ... Units
IF(AV) Rectangular
waveform
VRRM range
80
35 to 45
IFSM @ tp = 5 µs sine
5800
VF @40 Apk, TJ = 125°C
(per leg)
0.47
TJ range
- 55 to 150
A
V
A
V
°C
Description/Features
The 80CNQ center tap Schottky rectifier module series has
been optimized for very low forward voltage drop, with
moderate leakage. The proprietary barrier technology allows
for reliable operation up to 150° C junction temperature. Typical
applications are in switching power supplies, converters, free-
wheeling diodes, and reverse battery protection.
150° C TJ operation
Center tap module
Very low forward voltage drop
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Low profile, small footprint, high current package
80CNQ...
Case Styles
80CNQ...SM
80CNQ...SL
D61-8
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D61-8-SM
D61-8-SL
1

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80CNQ... Series
PD-2.216 rev. C 01/99
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
80CNQ035
35
80CNQ040
40
80CNQ045
45
Parameters
IF(AV) Max.AverageForward (PerLeg)
Current * See Fig. 5 (PerDevice)
IFSM Max.PeakOneCycleNon-Repetitive
SurgeCurrent (Per Leg) *SeeFig.7
EAS Non-RepetitiveAvalancheEnergy
(Per Leg)
IAR RepetitiveAvalancheCurrent
(Per Leg)
Electrical Specifications
80CNQ
40
80
5800
750
54
8
Units
Conditions
A 50%dutycycle@TC=114°C,rectangularwaveform
5µs Sine or 3µs Rect. pulse Following any rated
A load condition and with
10ms Sine or 6ms Rect. pulse rated VRRMapplied
mJ TJ = 25 °C, IAS = 8 Amps, L = 1.7 mH
A Currentdecayinglinearlytozeroin1µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Parameters
80CNQ Units
Conditions
VFM Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
IRM Max. Reverse Leakage Current
(Per Leg) * See Fig. 2 (1)
0.52
0.66
0.47
0.61
5
250
VF(TO) Threshold Voltage
rt Forward Slope Resistance
CT Max. Junction Capacitance (Per Leg)
LS Typical Series Inductance (Per Leg)
dv/dt Max. Voltage Rate of Change
(Rated VR)
0.26
3.93
2600
5.5
10,000
Thermal-Mechanical Specifications
V @ 40A
V @ 80A
TJ = 25 °C
V @ 40A
V @ 80A
TJ = 125 °C
mA TJ = 25 °C
mA TJ = 125 °C
VR = rated VR
V TJ = TJ max.
m
pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
nH Measured lead to lead 5mm from package body
V/ µs
(1) Pulse Width < 300µs, Duty Cycle <2%
Parameters
TJ Max.JunctionTemperatureRange
Tstg Max.StorageTemperatureRange
RthJC Max.ThermalResistanceJunction
toCase (Per Leg)
RthJC Max.ThermalResistanceJunction
toCase(Per Package)
RthCS TypicalThermalResistance,Case
toHeatsink (D61-8 Only)
wt ApproximateWeight
T MountingTorque
Min.
(D61-8 Only)
Max.
80CNQ Units
Conditions
-55to150 °C
-55to150 °C
0.85 °C/W DCoperation
* See Fig. 4
0.42 °C/W DCoperation
0.30 °C/W Mountingsurface,smoothandgreased
7.8(0.28) g(oz.)
40(35) Kg-cm
58(50) (Ibf-in)
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1000
100
10
TJ= 150°C
TJ= 125°C
TJ= 25°C
80CNQ... Series
PD-2.216 rev. C 01/99
1000
100
TJ = 150°C
125°C
10 100°C
75°C
1
50°C
0.1
25°C
0.01
0 5 10 15 20 25 30 35 40 45
Reverse Voltage - V R (V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (PerLeg)
10000
1000
T J= 25°C
1
0 0.2 0.4 0.6 0.8 1 1.2
Forward Voltage Drop - VFM (V)
Fig.1-Max. Forward Voltage Drop Characteristics
(PerLeg)
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
0.1
Single Pulse
(Thermal Resistance)
100
0
10 20 30 40 50
Reverse Voltage - V R (V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
PDM
Notes:
t1
t2
1. Duty factor D = t 1/ t 2
2. Peak TJ = PDM x Z thJC+ T C
0.01
0.00001
0.0001
0.001
0.01
0.1
1
10
t 1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
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100
3