IF(AV) Rectangular 200 A
waveform
VRRM range 60 V
IFSM @ tp = 5 µs sine 16,000 A
VF@
100Apk, TJ=125°C 0.59 V
(per leg)
TJrange - 55 to 150 °C
Characteristics 208CNQ... Units
Major Ratings and Characteristics
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 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
Description/Features
TO-244AB
SCHOTTKY RECTIFIER 200 Amp
208CNQ060
Bulletin PD-20743 rev. A 07/01
BASE
ANODE 2
63.50 [2.500]
60.96 [2.400]
23.55 [.927]
20.42 [.804] 14.99 [.590]
15.75 [.620]
20.32 [.800]
17.78 [.700]
39.75 [1.565]
40.26 [1.585]
80.01 [3.150]
34.925 [1.375]
3.35 [.132]
3.02 [.119]
90.17 [3.550]
92.71 [3.650]
7.49 [.295]
6.99 [.275]
2X Ø
10.41 [.410]
9.65 [.380]
Ø
4.70 [.185]
4.95 [.195]
1/4-20 SLOTTED HEX
COMMON
CATHODE
REF.
TERMINAL
LUG
COMMON CATHODE
ANODE 1
TERMINAL
LUG
Ø
NOTES:
1. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES].
2. CONTROLLING DIMENSION: MILLIMETER
Modified JEDEC
Outline TO-244AB
Dimensions in millimeters and (inches)
1www.irf.com
208CNQ060
2
Bulletin PD-20743 rev. A 07/01
www.irf.com
VFM Max. Forward Voltage Drop 0.68 V @ 100A
(Per Leg) * See Fig. 1 (1) 0.83 V @ 200A
0.59 V @ 100A
0.75 V @ 200A
IRM Max. Reverse Leakage Current 1.1 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 300 mA TJ = 125 °C
VF(TO) Threshold Voltage 0.32 V TJ = TJ max.
rtForward Slope Resistance 2.1 mΩ
CTMax. Junction Capacitance (Per Leg) 6000 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 7.0 nH From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change 10000 V/ µs
(Rated VR)
IF(AV) Max. Average Forward (Per Leg) 100 A 50% duty cycle @ TC = 115 °C, rectangular wave form
Current * See Fig. 5 (Per Device) 200
IFSM Max. Peak One Cycle Non-Repetitive 16,000 5µs Sine or 3µs Rect. pulse
Surge Current (Per Leg) * See Fig. 7 2,100 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 15 mJ TJ = 25 °C, IAS
= 1 Amps, L = 30 mH
(Per Leg)
IAR Repetitive Avalanche Current 1 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical
Part number 208CNQ060
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
60
Voltage Ratings
Absolute Maximum Ratings
Following any rated
load condition and with
rated VRRM applied
A
Parameters 208CNQ Units Conditions
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Electrical Specifications
(1) Pulse Width < 300µs, Duty Cycle <2%
TJMax. Junction Temperature Range -55 to 150 °C
Tstg Max. Storage Temperature Range -55 to 150 °C
RthJC Max. Thermal Resistance Junction 0.40 °C/W DC operation * See Fig. 4
to Case (Per Leg)
RthJC Max. Thermal Resistance Junction 0.20 °C/W DC operation
to Case (Per Package)
RthCS Typical Thermal Resistance, Case 0.10 °C/W Mounting surface , smooth and greased
to Heatsink
wt Approximate Weight 79 (2.80) g (oz.)
T Mounting Torque Min. 24 (20)
Max. 35 (30)
Mounting Torque Center Hole Typ. 13.5 (12)
Terminal Torque Min. 35 (30)
Max. 46 (40)
Case Style TO - 244AB Modified JEDEC
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
Parameters 208CNQ Units Conditions
Parameters 208CNQ Units Conditions
208CNQ060
3
Bulletin PD-20743 rev. A 07/01
www.irf.com
Fig. 4 - Max. Thermal Impedance Z thJC Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
Forward Voltage Drop - V FM
(V)
Instantaneous Forward Current - I F (A)
Reverse Current - I R
(mA)
Reverse Voltage - V R
(V)
Reverse Voltage - V R (V)
Junction Capacitance - C T (pF)
t1, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z thJC (°C/W)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
1
10
100
1000
0 0.2 0.4 0.6 0.8 1 1.2
T = 150˚C
T = 125˚C
T = 25˚C
J
J
J
0.01
0.1
1
10
100
1000
0 102030405060
125˚C
T = 150˚C
75˚C
J
25˚C
100˚C
50˚C
1000
10000
100000
0 102030405060
T = 25˚C
J
0.001
0.01
0.1
1
0.00001 0.0001 0.001 0.01 0.1 1 10
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
208CNQ060
4
Bulletin PD-20743 rev. A 07/01
www.irf.com
FREE-WHEEL
D IO DE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SW ITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Average Forward Current - I F(AV)
(A)
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
Allowable Case Temperature (°C)
Non-Repetitive Surge Current - I FSM (A)
Fig. 6 - Forward Power Loss Characteristics
Average Forward Current - I F(AV)
(A)
Average Power Loss (Watts)
Fig. 8 - Unclamped Inductive Test Circuit
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC
;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1
= 80% rated VR
90
100
110
120
130
140
150
0 20 40 60 80 100 120 140 160
DC
see note (2)
Square wave (D = 0.50)
80% Rated Vr applied
0
20
40
60
80
100
0 30 60 90 120 150
DC
RMS Limit
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
1000
10000
100000
10 100 1000 10000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
208CNQ060
5
Bulletin PD-20743 rev. A 07/01
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. 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.
