Teccor, Brand thyristors, Dimensions — to-263 (n package) — d – Littelfuse Qxx25xx Series User Manual
Page 8: Inches millimeters min max min max
138
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor
®
brand Thyristors
25 Amp Standard & Alternistor (High Commutation) Triacs
Qxx25xx & Qxx25xHx Series
Dimensions — TO-263 (N Package) — D
2
Pak Surface Mount
Dimensions — TO-218AC (K Package) — Isolated Mounting Tab
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
G
B
A
W
F
D
V
S
MT1
MT2
T
C
MEASURING POINT
C
E
K
H
J
U
.320
8.13
.276
7.01
.331
8.41
GATE
.460
11.68
.665
16.89
.260
6.60
.150
3.81
.080
2.03
.085
2.16
.055
1.40
.350
8.89
.276
7.01
.276
7.01
AREA: 0.11 IN
2
Dimension
Inches
Millimeters
Min
Max
Min
Max
A
0.360
0.370
9.14
9.40
B
0.380
0.420
9.65
10.67
C
0.178
0.188
4.52
4.78
D
0.025
0.035
0.64
0.89
E
0.045
0.060
1.14
1.52
F
0.060
0.075
1.52
1.91
G
0.095
0.105
2.41
2.67
H
0.092
0.102
2.34
2.59
J
0.018
0.024
0.46
0.61
K
0.090
0.110
2.29
2.79
S
0.590
0.625
14.99
15.88
V
0.035
0.045
0.89
1.14
U
0.002
0.010
0.05
0.25
W
0.040
0.070
1.02
1.78
C
D
H
G
F
B
A
E
T
C
Measurement Point
U
(diameter)
P
Gate
J
MT2
MT1
M
N
K
L
R
Q
W
Note: Maximum torque to
be applied to mounting tab
is 8 in-lbs. (0.904 Nm).