Littelfuse SM20 Varistor Series - Manual (Page 4)

© 2014 Littelfuse, Inc. 84
Revised: February 6, 2014
Varistor Products
SM20 Series Varistor
Surface Mount Varistors > SM20 Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/sm20.html for current information.
Part Numbering System
For “VARISTOR”
Max Voltage Rating
M(AC)
(Two or three digits -- refer to
ratings and specifications table)
V 275 SM20
SM20 SERIES
8
6
38
S1
S2
Soldering Pad Layout
H1
H2 t
W
D
Product Dimensions
Symbol
Millimeters
Min Max
D
(diameter)
--- 26
H1 --- 10.5
H2 1.0 --
t 0.50 0.70
S1 32.5 35
S2 3.0 4.5
W 6.2 6.6
Packaging
192 mm
30 mm
typical
192 mm
30 mm
typical
8.4 mm
typical
Radius
30 mm
typical
11.7 mm
pocket
depth
Standard Packaging is in "Waffle" trays:
Quantity per tray: 36 pieces
Quantity per box: 108 pieces