IF(AV) Rectangular 200 A
waveform
VRRM range 80 to 100 V
IFSM @ tp = 5 µs sine 16,000 A
VF@
100Apk, TJ=125°C 0.70 V
(per leg)
TJrange - 55 to 175 °C
Characteristics 203DNQ... Units
Major Ratings and Characteristics
The 203DNQ 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
high current switching power supplies, plating power supplies,
UPS systems, converters, free-wheeling diodes, welding, 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
Description/Features
Modified JEDEC
Outline TO-244AB
Dimensions in millimeters and (inches)
200 Amp
203DNQ... SERIES
Bulletin PD-20580 rev. A 07/01
SCHOTTKY RECTIFIER
1
2
3
TO-244AB
Common Cathode
1
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203DNQ... Series
2
Bulletin PD-20580 rev. A 07/01
www.irf.com
VFM Max. Forward Voltage Drop 0.86 V @ 100A
(Per Leg) * See Fig. 1 (1) 1.03 V @ 200A
0.70 V @ 100A
0.84 V @ 200A
IRM Max. Reverse Leakage Current 3 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 40 mA TJ = 125 °C
VF(TO) Threshold Voltage 0.50 V TJ = TJ max.
rtForward Slope Resistance 1.08 mΩ
CTMax. Junction Capacitance (Per Leg) 2,650 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 10,000 V/ µs
(Rated VR )
IF(AV) Max. Average Forward 200 A 50% duty cycle @ TC = 136 °C, rectangular wave form
Current * See Fig. 5 (Per Device)
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 203DNQ080 203DNQ100
VRMax. DC Reverse Voltage (V) 80 100
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
Absolute Maximum Ratings
Following any rated
load condition and with
rated VRRM applied
A
Parameters 203DNQ Units Conditions
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Electrical Specifications
(1) Pulse Width < 300µs, Duty Cycle <2%
Parameters 203DNQ Units Conditions
TJMax. Junction Temperature Range - 55 t o 17 5 °C
Tstg Max. Storage Temperature Range - 55 t o 17 5 °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 Isolated Modified JEDEC
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
Parameters 203DNQ Units Conditions
203DNQ... Series
3
Bulletin PD-20580 rev. A 07/01
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 - VFM (V)
Reverse Current - I R
(mA)
Reverse Voltage - VR (V)
Junction Capacitance - C T (p F)
Reverse Voltage - VR (V)
Thermal Impedance Z
thJC
(°C/W)
t1 , Rectangular Pulse Duration (Seconds)
1
10
100
1000
0 0.2 0.4 0.6 0.8 1 1.2 1.4
T = 175˚C
T = 125˚C
T = 25˚C
J
J
J
0
.001
0.01
0.1
1
10
100
1000
0 20406080100
125˚C
75˚C
50˚C
25˚C
T = 175˚C
J
150˚C
100˚C
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
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
D = 0.20
2
t
1
t
P
DM
203DNQ... Series
4
Bulletin PD-20580 rev. A 07/01
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)
FREE-WHEEL
D IO DE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SW ITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
(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
Allowable Case Temperature (°C)
Average Forward Current - IF(AV) (A)
Average Power Loss (Watts)
Average Forward Current - IF(AV) (A)
Non-Repetitive Surge Current - I FSM (A)
Square Wave Pulse Duration - tp (microsec)
1000
10000
00000
10 100 1000 10000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
0
50
00
50
00
50
0 50 100 150 200 250 300
DC
RMS Limit
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
120
130
140
150
160
170
180
0 50 100 150 200 250 300
DC
80% Square Wave
(D = 0.50)
see note (2)
203DNQ... Series
5
Bulletin PD-20580 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.
