Littelfuse Sxx55x Series User Manual
Sxx55x series, Teccor, Brand thyristors
321
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor
®
brand Thyristors
55 Amp Standard SCRs
Sxx55x Series
Sxx55x Series
Main Features
Symbol
Value
Unit
I
T(RMS)
55
A
V
DRM
/ V
RRM
400 to 1000
V
I
GT
40
mA
Absolute Maximum Ratings
Symbol
Parameter
Test Conditions
Value
Unit
I
T(RMS)
RMS on-state current
T
C
= 90°C
55
A
I
T(AV)
Average on-state current
T
C
= 90°C
35.0
A
I
TSM
Peak non-repetitive surge current
single half cycle; f = 50Hz;
T
J
(initial) = 25°C
550
A
single half cycle; f = 60Hz;
T
J
(initial) = 25°C
650
I
2
t
I
2
t Value for fusing
t
p
= 8.3 ms
1750
A
2
s
di/dt
Critical rate of rise of on-state current
f = 60Hz ; T
J
= 125°C
175
A/μs
I
GM
Peak gate current
T
J
= 125°C
P
W
= 10μS
4.0
A
P
G(AV)
Average gate power dissipation
T
J
= 125°C
0.8
W
T
stg
Storage temperature range
-40 to 150
°C
T
J
Operating junction temperature range
-40 to 125
°C
Description
Excellent unidirectional switches for phase control
applications such as heating and motor speed controls.
Standard phase control SCRs are triggered with few
milliamperes of current at less than 1.5V potential.
Features & Benefits
t3P)4DPNQMJBOU
t(MBTToQBTTJWBUFE
junctions
t7PMUBHFDBQBCJMJUZVQ
to 1000 V
t4VSHFDBQBCJMJUZVQUP
650 A
Schematic Symbol
Applications
Typical applications are AC solid-state switches, industrial
power tools, exercise equipment, white goods and
commercial appliances.
A
K
G