Major Ratings and Characteristics
I
F(AV)
Rectangular 18 A
waveform
V
RRM
range 35 to 45 V
I
FSM
@ tp = 5 µs sine 1800 A
V
F
@

18 Apk, T
J
= 125°C 0.53 V
T
J
range - 55 to 175 °C
Characteristics 18TQ Units
Description/Features
The 18TQ Schottky rectifier 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 switching
power supplies, converters, free-wheeling diodes, and re-
verse battery protection.
175° C T
J
operation
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
Bulletin PD-20178 rev. C 07/03
18TQ...
18TQ...S
I
F(AV)
= 18Amp
V
R
= 35 to 45V
SCHOTTKY RECTIFIER 18 Amp
1www.irf.com
Case Styles
18TQ...
TO-220AC
18TQ... S
D
2
PAK
Anode
1 3
Base
Cathode
2
N/CAnode
1 3
Cathode
Base
Cathode
2