SCHOTTKY RECTIFIER
New GenIII D-61 Package
80 Amp
Bulletin PD-20045 rev. A 09/01
www.irf.com
1
Major Ratings and Characteristics
I
F(AV)
Rectangular
80
A
waveform
V
RRM
20
V
I
FSM
@ tp = 5 s sine
6000
A
V
F
@
40 Apk, T
J
= 125 C
0.32
V
(per leg)
T
J
range
- 55 to 150
C
Characteristics
Values
Units
The center tap Schottky rectifier module has been optimized
for ultra low forward voltage drop specifically for 3.3V output
power supplies. The proprietary barrier technology allows for
reliable operation up to 150 C junction temperature. Typical
applications are in parallel switching power supplies,
converters, reverse battery protection, and redundant power
subsystems.
150 C T
J
operation
Center tap module
Optimized for 3.3V application
Ultra low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
New fully transfer-mold low profile, small
footprint, high current package
Description/Features
87CNQ020A
Case Styles
D61-8
83CNQ...A
83CNQ...ASM
83CNQ...ASL
D61-8-SM
D61-8-SL
87CNQ020A
2
Bulletin PD-20045 rev. A 09/01
www.irf.com
V
FM
Max. Forward Voltage Drop
0.45
V
@ 40A
(Per Leg)
(1)
0.51
V
@ 80A
0.32
V
@ 40A
0.39
V
@ 80A
0.29
V
@ 40A
0.37
V
@ 80A
I
RM
Max. Reverse Leakage Current
5.5
mA
T
J
= 25 C
(Per Leg)
(1)
550
mA
T
J
= 125 C
90
mA
T
J
= 125 C
V
R
= 5V
70
mA
T
J
= 125 C
V
R
= 3.3V
480
mA
T
J
= 150 C
V
R
= 10V
V
F(TO)
Threshold Voltage
0.191
V
T
J
= T
J
max.
r
t
Forward Slope Resistance
2.3
m
C
T
Max. Junction Capacitance (Per Leg)
6500
pF
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25C
L
S
Typical Series Inductance (Per Leg)
5.5
nH
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
10000
V/ s
(Rated V
R
)
I
F(AV)
Max. Average Forward (Per Device)
80
A
50% duty cycle @ T
C
= 135C, rectangular wave form
Current
(Per Leg)
40
I
FSM
Max. Peak One Cycle Non-Repetitive
6000
5s Sine or 3s Rect. pulse
Surge Current (Per Leg)
1100
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
36
mJ
T
J
= 25 C, I
AS
= 8 Amps, L = 1.12 mH
(Per Leg)
I
AR
Repetitive Avalanche Current
8
A
Current decaying linearly to zero in 1 sec
(Per Leg)
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Following any rated
load condition and with
rated V
RRM
applied
Electrical Specifications
Part number 87CNQ020A / ..020ASM / ..020ASL
V
R
Max. DC Reverse Voltage (V)
@ 125 C
V
R
Max. DC Reverse Voltage (V)
@ 150 C
Voltage Ratings
Absolute Maximum Ratings
Parameters
87CNQ Units
Conditions
A
T
J
= 25 C
T
J
= 125 C
V
R
= rated V
R
Parameters 87CNQ Units Conditions
T
J
Max. Junction Temperature Range
-55 to 150
C
T
stg
Max. Storage Temperature Range
-55 to 150
C
R
thJC
Max. Thermal Resistance Junction
0.85
C/W DC operation
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
0.42
C/W DC operation
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
0.30
C/W Mounting surface , smooth and greased
to Heatsink (D61-8 Only)
Device flatness < 5 mils
wt
Approximate Weight
7.8 (0.28)
g (oz.)
T
Mounting Torque
Min.
40 (35)
(D61-8 Only)
Max.
58 (50)
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
(1) Pulse Width < 300s, Duty Cycle <2%
20
10
T
J
= 150 C
Parameters
87CNQ Units
Conditions
87CNQ020A
3
Bulletin PD-20045 rev. A 09/01
www.irf.com
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Instantaneous Forward Current - I
F
(A)
Forward Voltage Drop - V
FM
(V)
1
10
100
1000
0
0.2
0.4
0.6
0.8
1
T = 150C
T = 125C
T = 25C
J
J
J
Reverse Current - I
R
(mA)
Reverse Voltage - V
R
(V)
Junction Capacitance - C
T
(p F)
Reverse Voltage - V
R
(V)
Thermal Impedance Z
thJC
(C/W)
t
1
, Rectangular Pulse Duration (Seconds)
.001
0.01
0.1
1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
Single Pulse
(Thermal Resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
Notes:
1. Duty factor D = t1 / t2
2. Peak Tj = Pdm x ZthJC + Tc
2
t
1
t
P
DM
0.01
0.1
1
10
100
1000
10000
0
5
10
15
20
125C
100C
75C
50C
25C
Tj = 150C
1000
10000
0
5
10
15
20
25
T = 25C
J
87CNQ020A
4
Bulletin PD-20045 rev. A 09/01
www.irf.com
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
(2) Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
Allowable Case Temperature (C)
Average Forward Current - I
F(AV)
(A)
20
25
30
35
40
45
50
0
10
20
30
40
50
60
DC
see note (2)
Square wave (D = 0.50)
80% Rated Vr applied
Average Power Loss (Watts)
Average Forward Current - I
F(AV)
(A)
Non-Repetitive Surge Current - I
FSM
(A)
Square Wave Pulse Duration - t
p
(microsec)
FREE-WHEEL
DIODE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
0
5
10
15
20
25
0
10
20
30
40
50
60
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
100
1000
10000
10
100
1000
10000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
87CNQ020A
5
Bulletin PD-20045 rev. A 09/01
www.irf.com
Outline Table
Outline D61-8
Dimensions are in millimeters and (inches)
Outline D61-8-SM
Dimensions are in millimeters and (inches)
87CNQ020A
6
Bulletin PD-20045 rev. A 09/01
www.irf.com
Outline Table
Outline D61-8-SL
Dimensions are in millimeters and (inches)
87CNQ020A
7
Bulletin PD-20045 rev. A 09/01
www.irf.com
Part Marking Information
D61-8
D61-8-SM
D61-8-SL
THIS IS A 87CNQ020A WITH
LOT CODE 89 09
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
ASSEMBLY
LOT CODE
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
DATE CODE
YEAR 0 = 2000
WEEK 45
LINE A
87CNQ020A
89 09 045A
THIS IS A 87CNQ020ASM WITH
LOT CODE 89 09
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
ASSEMBLY
LOT CODE
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
DATE CODE
YEAR 0 = 2000
WEEK 45
LINE A
87CNQ020ASM
89 09 045A
THIS IS A 87CNQ020ASL WITH
LOT CODE 89 09
ASSEMBLED ON WW 45, 2000
IN THE ASSEMBLY LINE "A"
ASSEMBLY
LOT CODE
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
DATE CODE
YEAR 0 = 2000
WEEK 45
LINE A
87CNQ020ASL
89 09 045A
87CNQ020A
8
Bulletin PD-20045 rev. A 09/01
www.irf.com
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 09/01
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
Qualification Standards can be found on IR's Web site.
PDF 
ZIP