
298
Revised: July 9, 2008
2008 Littelfuse, Inc.
Teccor brand Thyristors
Specications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
55 Amp Standard SCRs
Sxx55x Series
Specications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
Dimensions – TO-218AC (M Package) — Non-isolated Mounting Tab Common with Center Lead
Dimension
Inches
Millimeters
Min
Max
Min
Max
A
0.810
0.835
20.57
21.21
B
0.610
0.630
15.49
16.00
C
0.178
0.188
4.52
4.78
D
0.055
0.070
1.40
1.78
E
0.487
0.497
12.37
12.62
F
0.635
0.655
16.13
16.64
G
0.022
0.029
0.56
0.74
H
0.075
0.095
1.91
2.41
J
0.575
0.625
14.61
15.88
K
0.211
0.219
5.36
5.56
L
0.422
0.437
10.72
11.10
M
0.058
0.068
1.47
1.73
N
0.045
0.055
1.14
1.40
P
0.095
0.115
2.41
2.92
Q
0.008
0.016
0.20
0.41
R
0.008
0.016
0.20
0.41
U
0.164
0.165
4.10
4.20
W
0.085
0.095
2.17
2.42
C
D
H
G
F
B
A
E
Tc Measurement Point
U (diameter)
ANODE
P
GATE
J
ANODE
CATHODE
M
N
K
L
R
Q
Note: Maximum torque
to be applied to mounting
tab is 8 in-lbs. (0.904 Nm).
W
Product Selector
Part Number
Voltage
Gate Sensitivity
Type
Package
400V
600V
800V
1000V
Sxx55R
XXXX
40mA
Standard SCR
TO-220R
Sxx55N
XXXX
40mA
Standard SCR
TO-263
Sxx55W
X
40mA
Standard SCR
TO-218X
Sxx55M
XXXX
40mA
Standard SCR
TO-218AC
Note: xx = Voltage
Packing Options
Part Number
Marking
Weight
Packing Mode
Base Quantity
Sxx55R
2.2g
Bulk
500
Sxx55RTP
Sxx55R
2.2g
Tube
500
Sxx55NTP
Sxx55N
1.6g
Tube
500
Sxx55NRP
Sxx55N
1.6g
Embossed Carrier
500
Sxx55W
5.23g
Bulk
250
Sxx55WTP
Sxx55W
5.23g
Tube
500
Sxx40M
4.40g
Bulk
250
Sxx55MTP
Sxx55M
4.40g
Tube
500
Note: xx = Voltage