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Details, datasheet, quote on part number:81CNQ
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| Part: | 81CNQ |
| Category: | Discrete => Diodes & Rectifiers => Schottky Barrier Rectifiers => 5 to 100 Amp |
| Description: | Schottky Rectifier 80 Amp |
| Company: | International Rectifier Corp. |
| Datasheet: | Download 81CNQ datasheet File size : 128 kB |
| Request For quote: | Find where to buy 81CNQ
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Datasheet text preview:
PD-2.237 rev. B 01/99
81CNQ... SERIES
SCHOTTKY RECTIFIER 80 Amp
Major Ratings and Characteristics Characteristics
I F(AV) Rectangular waveform VRRM range I FSM @ tp = 5 µs sine VF @ 40 Apk, TJ = 125°C (per leg) range 35 to 45 4600 0.54 V A V
Description/Features Units
A 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...
80
TJ
- 55 to 175
°C
Case Styles
81CNQ... 81CNQ...SM 81CNQ...SL
D61-8
D61-8-SM
D61-8-SL
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81CNQ... Series
PD-2.237 rev. B 01/99
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V) 35 40 45 VRWM Max. Working Peak Reverse Voltage (V)
81CNQ035
81CNQ040
81CNQ045
Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward Current * See Fig. 5 IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7 Non-Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg) 4600 790 54 8 A mJ A Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied 5µs Sine or 3µs Rect. pulse TJ = 25 °C, IA S = 8 Amps, L = 1.7 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. V A = 1.5 x VR typical
81CNQ Units
80 A
Conditions
50% duty cycle @ T C = 141 °C, rectangular wave form
Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1)
81CNQ Units
0.60 0.74 0.54 0.66 5 45 2600 5.5 10,000 V V V V mA mA pF nH V/ µs @ 40A @ 80A @ 40A @ 80A
Conditions
TJ = 25 °C TJ = 125 °C VR = rated VR
IRM CT LS
Max. Reverse Leakage Current (Per Leg) * See Fig. 2 (1) Max. Junction Capacitance (Per Leg) Typical Series Inductance (Per Leg)
TJ = 25 °C TJ = 125 °C
VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change (Rated VR)
(1) Pulse Width < 300µs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters
TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range
81CNQ Units
-55 to 175 -55 to 175 0.85 0.42 0.30 7.8 (0.28) Min. Max. 40 (35) 58 (50) °C °C
Conditions
RthJC Max. Thermal Resistance Junction to Case (Per Leg) RthJC Max. Thermal Resistance Junction to Case (Per Package) RthCS Typical Thermal Resistance, Case to Heatsink (D61-8 Only) wt T Approximate Weight Mounting Torque (D61-8 Only)
°C/W DCoperation °C/W DCoperation
* See Fig. 4
°C/W Mounting surface , smooth and greased g (oz.) Kg-cm (Ibf-in)
2
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81CNQ... Series
PD-2.237 rev. B 01/99
1 00 0
10 0 0 10 0 10 1 0 .1 0 .0 1 0 .0 01 0 5 10 15 2 0 2 5 30 35 40 45 Reverse Voltage - VR (V) T J = 175°C 150 °C 125 °C 100 °C 75° C 50° C 25° C
10 0 (A)
In st ant aneous Forward Current - I
F
10 TJ = 175°C
Reverse Current - I R (mA)
Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg)
10 0 00 (pF)
T
TJ = 125°C TJ = 25°C 1
J un ct ion Capacitance - C
T = 25°C
J
1 00 0
0 .1 0 0 .1 0 .2 0.3 0 .4 0.5 0 .6 0 .7 0 .8 0 .9 1 Forward Voltage Drop - V FM (V)
10 0 0 10 20 30 40 50 Reverse Voltage - VR (V)
Fig. 1 - Max. Forward Voltage Drop Characteristics (PerLeg)
1 Thermal Impedance Z thJC (°C/W)
Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg)
0.1
D= D= D= D= D=
0.50 0.33 0.25 0.17 0.08
PDM
Not es: Sing le Pulse (Therm al Resistance) 0 .0 1 0 .0 0 0 01
t1 t2
1. Duty factor D = t 1/ t 2 2. Peak TJ = PDM x Z thJ C+ T C 0. 1 1 10 1 00
0 .0 00 1
0.0 0 1
0 .0 1
t 1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
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81CNQ... Series
PD-2.237 rev. B 01/99
18 0 Allowable Case Temperature - (°C) R t hJC (DC) = 0.85 °C/W 17 0
Average Power Loss - (Watts) 32 28 24 20 16 12 8 4 RMS Limit DC D = 0.08 D = 0.17 D = 0.25 D = 0.33 D = 0.50
16 0 DC 15 0
14 0 0 10 20 30 40 50 60 Av erage Forward Current - I F(AV) (A)
0 0 10 20 30 40 50 60 Average Forward Current - I F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg)
(A) 10000
Fig. 6 - Forward Power Loss Characteristics (PerLeg)
Non- Repet it iv e Surge Current - I
FSM
1000
At Any Rated Load Condition And With Rated VRR M Applied Following Surge 100 10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L HIGH- SPE ED SWITCH FR EE- WHEEL DIODE 40HFL 40S02 V d = 25 Volt
DU T
IRFP460 Rg = 25 ohm
+
C URRE NT M ONITOR
Fig. 8 - Unclamped Inductive Test Circuit
4
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81CNQ... Series
PD-2.237 rev. B 01/99
Outline Table
Outline D61-8
Dimensions are in millimeters and (inches)
Outline D61-8-SM
Dimensions are in millimeters and (inches)
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