Varistor Products
Axial Lead / Application Specific Varistors > MA Series
RoHS
MA Varistor Series
Description
The MA Series of transient surge suppressors are axial
lead Metal Oxide Varistors (MOVs) for use in a wide
variety of board level industrial and commercial electronic
equipment. They are intended to protect components and
signal/data lines from low energy transients where the
small axial lead package is required.
The MA Series is offered with standard ('S' suffix) or
tightened ('B' suffix) clamping voltage.
See MA Series Device Ratings and SpecificationsTable for
part number and brand information.
Agency Approvals
Features
tꢀ ꢁNNꢀEJBNFUFSꢀ
tꢀ "WBJMBCMFꢀJOꢀUBQFꢀBOEꢀ
Agency
Agency File Number
disc size
reel or bulk packaging
None
tꢀ 4NBMMꢀBYJBMꢀMFBEꢀ
tꢀ /PꢀEFSBUJOHꢀVQꢀUPꢀ
package
85ºC ambient
tꢀ 8JEFꢀPQFSBUJOHꢀWPMUBHFꢀ
range:
tꢀ /FXꢀCMBDLꢀFQPYZꢀPGGFSTꢀ
improved performance
for high temperature
Lead-free wave
VM(AC)RMS 9V to 264V
VM(DC)
13V to 365V
soldering process.
Absolute Maximum Ratings
tꢀ'PSꢀSBUJOHTꢀPGꢀJOEJWJEVBMꢀNFNCFSTꢀPGꢀBꢀTFSJFTꢂꢀTFFꢀ%FWJDFꢀ3BUJOHTꢀBOEꢀ4QFDJmDBUJPOTꢀDIBSU
Continuous
MA Series
Units
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS
DC Voltage Range (VM(DC)
)
9 to 264
V
V
)
13 to 365
Transient:
Peak Pulse Current (ITM
)
For 8/20μs Current Wave(See Figure 2)
40 to 100
A
Single-Pulse Energy Range
For 2ms Current Square Wave (WTM
Operating Ambient Temperature Range (TA)
Storage Temperature Range (TSTG
)
0.06 to 1.7
-55 to +85
-55 to +125
<0.01
J
°C
)
°C
Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current
%/°C
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
1000
1000
V
Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
COATING Insulation Resistance
MΩ
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
©2008 Littelfuse, Inc.
183
MAVaristor Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ma.html for current information.
Revision: January 9, 2009