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International Rectifier Electronic Components Datasheet

81CNQ045 Datasheet

SCHOTTKY RECTIFIER 80 Amp

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81CNQ045 pdf
SCHOTTKY RECTIFIER
PD-2.237 rev. B 01/99
81CNQ... SERIES
80 Amp
Major Ratings and Characteristics
Characteristics
81CNQ... Units
IF(AV) Rectangular
waveform
VRRM range
80
35 to 45
IFSM @ tp = 5 µs sine
4600
VF @40 Apk, TJ = 125°C
(per leg)
0.54
TJ range
- 55 to 175
A
V
A
V
°C
Description/Features
The 81CNQ center tap Schottky rectifier module series 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, free-wheeling diodes,
and reverse battery protection.
175 °C TJ operation
Center tap module
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Low profile, small footprint, high current package
81CNQ...
Case Styles
81CNQ...SM
81CNQ...SL
D61-8
www.irf.com
D61-8-SM
D61-8-SL
1


International Rectifier Electronic Components Datasheet

81CNQ045 Datasheet

SCHOTTKY RECTIFIER 80 Amp

No Preview Available !

81CNQ045 pdf
81CNQ... Series
PD-2.237 rev. B 01/99
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
81CNQ035
35
81CNQ040
40
81CNQ045
45
Absolute Maximum Ratings
Parameters
IF(AV) Max.AverageForwardCurrent
* See Fig. 5
IFSM Max.PeakOneCycleNon-Repetitive
SurgeCurrent (Per Leg) *SeeFig.7
EAS Non-RepetitiveAvalancheEnergy
(Per Leg)
IAR RepetitiveAvalancheCurrent
(Per Leg)
81CNQ Units
Conditions
80 A 50%dutycycle@TC=141°C,rectangularwaveform
4600
790
54
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
8 A Currentdecayinglinearlytozeroin1µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
81CNQ Units
Conditions
VFM Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
IRM Max. Reverse Leakage Current
(Per Leg) * See Fig. 2 (1)
CT Max. Junction Capacitance (Per Leg)
LS Typical Series Inductance (Per Leg)
dv/dt Max. Voltage Rate of Change
(Rated VR)
0.60
0.74
0.54
0.66
5
45
2600
5.5
10,000
Thermal-Mechanical Specifications
V @ 40A
V @ 80A
V @ 40A
V @ 80A
TJ = 25 °C
TJ = 125 °C
mA TJ = 25 °C
mA TJ = 125 °C
VR = rated VR
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
to Heatsink (D61-8 Only)
wt ApproximateWeight
T MountingTorque
Min.
(D61-8 Only)
Max.
81CNQ Units
Conditions
-55to175 °C
-55to175 °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)
2 www.irf.com


Part Number 81CNQ045
Description SCHOTTKY RECTIFIER 80 Amp
Maker International Rectifier
Total Page 6 Pages
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