Maida Development Company -
sales@maida.com
- (757) 723-0785
STANDARD MARKING
Minimum marking shall consist of an
abbreviated style designation and, when
space is available, the manufacturer’s
initials or company logo.
Example:
MDC
R65
131UL
Where:
MDC - Company Initials
R65 – Square Disc Diameter
131 – AC Voltage rating (130VAC)
UL -
UL recognition, if applicable
A manufacturing date code and/or
special markings are available upon
request.
Other safety agency designations are
included where applicable.
X
d
LEAD LENGTH
H
T
D
Z
Y
LOW PROFILE
SERIES
INTRODUCTION
R 65 21 ZOV 131 RA 150
1. Coating
Designation
R – Standard Epoxy Coating
S – Standard Epoxy Coating,
25mm
PR/PS – Square Disc Phenolic
Coating
Neither – Denote no conformal
coating.
2. Nominal Disk Diameter
R69 – 12mm Square
R65 – 17mm Square
R66 – 22mm Square
S66 – 25mm Square
3. Lead
Configuration
(Refer to lead codes)
4. Material
Identifier
Zinc Oxide Varistor
5. AC Voltage Rating
Two significant figures plus number
of zeroes that follow, i.e. 131 is 130 VAC
6. Special
Instructions,
RA is standard
7. Rating
Code,
up to four numbers
The Low Profile Series compliments our Standard
Series as our square disc, radial-leaded varistors.
These components consist of wire leads and have
nominal disk diameters from 12mm to 25mm. They
are available with maximum continuous operating
voltages (MCOV) ranging from 130VAC to 1000VAC.
The Low Profile Series are designed to fit into spaces
that Standard Series electrically equivalents are
unable to fit. Most sizes are available in Tape and
Reel and ammo pack.
STYLE DESIGNATION
The Maida Style Number is the typical means to
identify our components when ordered. The style
number identifies several parameters that are
important for the characteristics of the device. An
alternative ordering method, if known, is by our Item
Number.
The following example is the standard part
numbering system when ordering our Low Profile
Series components by the Maida Style Number:
33