Bulletin PD-2.243 rev. C 07/01
444CNQ... SERIES
SCHOTTKY RECTIFIER
440 Amp
TO-244AB
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
@ tp = 5 碌s sine
V
F
T
J
@ 220Apk, T
J
=125擄C
(per leg)
range
Description/Features
The 444CNQ 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 125 擄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.
125 擄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
444CNQ... Units
440
35 to 45
35,000
0.51
- 55 to 125
A
V
A
V
擄C
80.01 [3.150]
40.26 [1.585]
39.75 [1.565]
COMMON
CATHODE
脴
10.41 [.410]
9.65 [.380]
20.32 [.800]
17.78 [.700]
LUG
TERMINAL
ANODE 1
LUG
TERMINAL
ANODE 2
2X 脴
7.49 [.295]
6.99 [.275]
34.925 [1.375]
REF.
63.50 [2.500]
60.96 [2.400]
脴
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)
www.irf.com
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1
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