Bulletin PD-20743 rev. A 07/01
208CNQ060
SCHOTTKY RECTIFIER
200 Amp
TO-244AB
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 100Apk, T
J
=125°C
(per leg)
range
Description/Features
The 208CNQ center tap Schottky rectifier module series has
been optimized for low reverse leakage at high temperature.
The proprietary barrier technology allows for reliable opera-
tion up to 150 °C junction temperature. Typical applications
are in high current switching power supplies, plating power
supplies, UPS systems, converters, free-wheeling diodes,
welding, and reverse battery protection.
150 °C T
J
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
208CNQ... Units
200
60
16,000
0.59
- 55 to 150
A
V
A
V
°C
80.01 [3.150]
40.26 [1.585]
39.75 [1.565]
COMMON
CATHODE
Ø
10.41 [.410]
9.65 [.380]
20.32 [.800]
17.78 [.700]
LUG
TERMINAL
ANODE 1
LUG
TERMINAL
ANODE 2
2X Ø
7.49 [.295]
6.99 [.275]
34.925 [1.375]
REF.
63.50 [2.500]
60.96 [2.400]
Ø
4.95 [.195]
4.70 [.185]
1/4-20 SLOTTED HEX
BASE
COMMON CATHODE
23.55 [.927]
20.42 [.804]
15.75 [.620]
14.99 [.590]
3.35 [.132]
3.02 [.119]
92.71 [3.650]
90.17 [3.550]
NOTES:
1. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
2. CONTROLLING DIMENSION: MILLIMETER
Modified JEDEC
Outline TO-244AB
Dimensions in millimeters and (inches)
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208CNQ060
Bulletin PD-20743 rev. A 07/01
Voltage Ratings
Part number
V
R
V
RWM
Max. DC Reverse Voltage (V)
Max. Working Peak Reverse Voltage (V)
208CNQ060
60
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current
I
FSM
E
AS
I
AR
* See Fig. 5
(Per Leg)
(Per Device)
208CNQ Units Conditions
100
200
16,000
2,100
15
1
A
mJ
A
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
5µs Sine or 3µs Rect. pulse
T
J
= 25 °C, I
AS
= 1 Amps, L = 30 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
A
50% duty cycle @ T
C
= 115 °C, rectangular wave form
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg) * See Fig. 7
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
208CNQ Units Conditions
0.68
0.83
0.59
0.75
1.1
300
0.32
2.1
6000
7.0
10000
V
V
V
V
mA
mA
V
mΩ
@ 100A
@ 200A
@ 100A
@ 200A
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
max.
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
Max. Reverse Leakage Current
(Per Leg) * See Fig. 2
(1)
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
pF
nH
V/ µs
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
(1) Pulse Width < 300µs, Duty Cycle <2%
208CNQ Units Conditions
-55 to 150
-55 to 150
0.40
0.20
0.10
°C
°C
°C/W DC operation
°C/W DC operation
°C/W Mounting surface , smooth and greased
* See Fig. 4
R
thJC
Max. Thermal Resistance Junction
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
to Heatsink
wt
Approximate Weight
T
Mounting Torque
Min.
Max.
Mounting Torque Center Hole Typ.
Terminal Torque
Min.
Max.
Case Style
79 (2.80) g (oz.)
24 (20)
Kg-cm
(Ibf-in)
35 (30)
13.5 (12)
35 (30)
46 (40)
TO - 244AB
Modified JEDEC
2
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208CNQ060
Bulletin PD-20743 rev. A 07/01
1000
Reverse Current - I
R
(mA)
1000
100
10
1
TJ = 150˚C
125˚C
100˚C
75˚C
50˚C
25˚C
Instantaneous Forward Current - I
F
(A)
100
0.1
0.01
0
10
20
30
40
50
60
Reverse Voltage - V
R
(V)
T J = 150˚C
T = 125˚C
J
T = 25˚C
J
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
100000
Junction Capacitance - C
T
(pF)
T = 25˚C
J
10
10000
1
0
0.2
0.4
0.6
0.8
1
Forward Voltage Drop - V
FM
(V)
1.2
Fig. 1 - Max. Forward Voltage Drop Characteristics
1000
0
10
20
30
40
50
60
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
1
Thermal Impedance Z
thJC
(°C/W)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
0.1
P
DM
0.01
Single Pulse
(Thermal Resistance)
t1
t2
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.001
0.00001
0.0001
0.001
0.01
0.1
1
10
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
208CNQ060
Bulletin PD-20743 rev. A 07/01
150
Allowable Case Temperature (°C)
100
Average Power Loss (Watts)
140
130
120
Square wave (D = 0.50)
110
80% Rated Vr applied
DC
80
60
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
RMS Limit
DC
40
20
0
100
see note (2)
90
0
20 40 60 80 100 120 140 160
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Non-Repetitive Surge Current - I
FSM
(A)
0
30
60
90
120
150
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
100000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
10000
1000
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
L
H IG H -SPE ED
SW ITC H
FREE-W HE EL
D IO D E
40H FL40S02
V d = 25 V olt
D UT
IRFP460
Rg = 25 ohm
+
C UR RE N T
M O N ITO R
Fig. 8 - Unclamped Inductive Test Circuit
(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
4
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208CNQ060
Bulletin PD-20743 rev. A 07/01
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.
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. 07/01
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