80CNQ040 (International Rectifier)
SCHOTTKY RECTIFIER

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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
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80CNQ040 (International Rectifier)
SCHOTTKY RECTIFIER

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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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80CNQ040 (International Rectifier)
SCHOTTKY RECTIFIER

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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
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SCHOTTKY RECTIFIER

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80CNQ... Series
PD-2.216 rev. C 01/99
160
140 DC
120
Square wave (D = 0.50)
80% Rated VR applied
100
see note (2)
80
0 10 20 30 40 50 60
Average Forward Current - I F(AV) (A)
Fig.5-Max. Allowable CaseTemperature
Vs. Average Forward Current (PerLeg)
10000
30
D = 0.20
D = 0.25
25 D = 0.33
D = 0.50
20 D = 0.75
RMS Limit
15
DC
10
5
0
0 10 20 30 40 50 60
Average Forward Current - I F(AV) (A)
Fig.6-Forward Power Loss Characteristics
(PerLeg)
DUT
C URRE NT
MONITOR
1000
At Any Rated Load Condition
And With
Following
Rated
Surge
V
RRM
Applied
100
10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig.7-Max. Non-Repetitive Surge Current (PerLeg)
L
IRFP460
Rg = 25 ohm
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
+ Vd = 25 Volt
Fig. 8 - Unclamped Inductive Test Circuit
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ;
Pd = Forward Power Loss = I x V @ (I / D) (see Fig. 6);
F(AV) FM
F(AV)
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1= 80% rated VR
4
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80CNQ040 (International Rectifier)
SCHOTTKY RECTIFIER

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Outline Table
80CNQ... Series
PD-2.216 rev. C 01/99
Outline D61-8
Dimensions are in millimeters and (inches)
Outline D61-8-SM
Dimensions are in millimeters and (inches)
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80CNQ040 (International Rectifier)
SCHOTTKY RECTIFIER

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80CNQ... Series
PD-2.216 rev. C 01/99
Outline Table
Outline D61-8-SL
Dimensions are in millimeters and (inches)
FOOT PRINT
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 U.S.A. Tel: (310) 322 3331. Fax: (310) 322 3332.
EUROPEAN HEADQUARTERS: Hurst Green, Oxted, Surrey RH8 9BB, U.K. Tel: ++ 44 1883 732020. Fax: ++ 44 1883 733408.
IR CANADA: 15 Lincoln Court, Brampton, Markham, Ontario L6T3Z2. Tel: (905) 453 2200. Fax: (905) 475 8801.
IR GERMANY: Saalburgstrasse 157, 61350 Bad Homburg. Tel: ++ 49 6172 96590. Fax: ++ 49 6172 965933.
IR ITALY: Via Liguria 49, 10071 Borgaro, Torino. Tel: ++ 39 11 4510111. Fax: ++ 39 11 4510220.
IR FAR EAST: K&H Bldg., 2F, 30-4 Nishi-Ikebukuro 3-Chome, Toshima-Ku, Tokyo, Japan 171. Tel: 81 3 3983 0086.
IR SOUTHEAST ASIA: 1 Kim Seng Promenade, Great World City West Tower,13-11, Singapore 237994. Tel: ++ 65 838 4630.
IR TAIWAN: 16 Fl. Suite D.207, Sec. 2, Tun Haw South Road, Taipei, 10673, Taiwan. Tel: 886 2 2377 9936.
http://www.irf.com
Fax-On-Demand: +44 1883 733420
Data and specifications subject to change without notice.
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