Littelfuse RA Varistor Series - Manual (Page 8)

© 2013 Littelfuse, Inc. 200
Revised: May 8, 2013
Varistor Products
RA Varistor Series
Low Profile / Application Specific Varistors > RA Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ra.html for current information.
Product Dimensions (mm)
D MAX
Y
n
MIN
A MAX
SEATING
PLANE
5.0 MIN
(0.197 MIN)
Øb
0.05
( 0.002)
E
MAX
e
1.0
( 0.039)
0.5 MAX
OFFSET
(0.020 MAX)
X
Z MIN
SYMBOL
RA8
Series
RA16
Series
RA22
Series
A (max.)
8.85
(0.348)
15.1
(0.594)
19.1
(0.752)
D (max.)
11.45
(0.450)
19.7
(0.776)
25.5
(1.004)
e
5
(0.197)
7.5
(0.295)
7.5
(0.295)
E (max.)
5.2
(0.205)
6.3
(0.248)
6.3
(0.248)
n (max.)
0.7
(0.027)
0.7
(0.027)
0.7
(0.027)
Øb
0.635
(0.025)
0.81
(0.032)
0.81
(0.032)
Weight
(typical)
1 Gram 3.4 Grams 4.4 Grams
X
2.2
(0.087)
2.2
(0.087)
4.4
(0.173)
Y
3.1 -/+ 0.5
(0.122 -/+
0.02)
6 -/+ 1
(0.236 -/+
0.04)
8.9 -/+ 1
(0.35 -/+ 0.04)
Z (min.)
0.4
(0.015)
0.8
(0.031)
0.8
(0.031)
NOTES: Dimensions are in mm, with dimensions in inches in parentheses.
Inches for reference only.
Part Numbering System
The RA Series is supplied in bulk pack.
V 200 RA 16
Device Size
Littelfuse
Varistor
Series Designator
Nominal
Varistor Voltage
OPTIONAL SUFFIX:
X2749: Lead-Free and
RoHS Compliant Option
X2749