V131DA40_09 Datasheet, PDF (1/4 Pages) Littelfuse – Industrial High Energy Terminal Varistors

Varistor Products
Industrial High Energy Terminal Varistors > DA/DB Series
RoHS _{DA/DB Varistor Series}
DA SERIES
DB SERIES
Agency Approvals
Agency
Agency File Number
E320116
Description
The DA and DB Series transient surge suppressors
are heavy-duty industrial Metal-Oxide Varistors
(MOVs) designed to provide surge protection for
motor controls and power supplies used in oil-
drilling, mining, and transportation equipment.
These UL recognized varistors have identical ratings
and specifications but differ in case construction
to provide flexibility in equipment designs.
DA Series devices feature rigid terminals to ensure
secure wire contacts. Both the DA and DB Series feature
improved creep and strike distance capability to minimize
breakdown along the package surface design that provides
complete electrical isolation of the disc subassembly.
See DA/DB Series Device Ratings and Specifications
table for part number and brand information.
Features
• RoHS compliant
and Lead–free
• High energy
absorption capability
W_TM up to 1050J
• Wide operating
voltage range
V_M(AC)RMS 130V to 750V
• Screw terminals (DA
Series),quick connect
push-on connectors
(DB Series)
• Case design provides
complete electrical
isolation of disc
subassembly
• 40mm diameter disc
• No derating up to
85ºC ambient
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous
Steady State Applied Voltage:
Transients:
AC Voltage Range (V_M(AC)RMS)
DC Voltage Range (V_M(DC))
Peak Pulse Current (I_TM)
For 8/20μs Current Wave (See Figure 2)
Single Pulse Energy Range
For 2ms Current Squarewave (W_TM)
Operating Ambient Temperature Range (T_A)
Storage Temperature Range (T_STG)
Temperature Coefficient (a^V) of Clamping Voltage (V_C) at Specified Test Current
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
COATING Insulation Resistance
DA/DB Series
130 to 750
175 to 970
Units
V
V
40,000
270 to 1050
-55 to +85
-55 to +125
<0.01
5000
1000
A
J
ºC
ºC
%/ºC
V
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.
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/da or /db.html for current information.
Revision: October 29, 2009
DA/DB Varistor Series