I
F(AV)
Rectangular 200 A
waveform
V
RRM
range 80 and 100 V
I
FSM
@ tp = 5 µs sine 16,000 A
V
F
@

100Apk, T
J
=125°C 0.70 V
(per leg)
T
J
range - 55 to 175 °C
Characteristics Value Units
Major Ratings and Characteristics
The 203CNQ... (R) center tap Schottky rectifier module series
has been optimized for low reverse leakage at high tempera-
ture.
The proprietary barrier technology allows for reliable opera-
tion 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 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
Description/ Features
TO-244AB
SCHOTTKY RECTIFIER 200 Amp
203CNQ...(R) SERIES
Bulletin PD-2259 rev. E 06/01
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.
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
203CNQ100
203CNQ100(R)
Lug
Terminal
Anode 1
Lug
Terminal
Anode 2
Base
Common Cathode
Base
Common Anode
Cathode 1 Cathode 2