Littelfuse UltraMOV 25S Varistor Series - Manual (Page 4)

© 2013 Littelfuse, Inc. 110
Revised: May 8, 2013
Varistor Products
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ultramov25s.html for current information.
UltraMOV™ 25S Varistor Series
Radial Lead Varistors > UltraMOV TM 25S Series
UltraMOV TM 25S Series Varistors for High-Temperature Operating Conditions:
Wave Solder Profile
Operating/Storage
Temperature -55°C to +85°C/
-55°C to +125°C
Passive Aging
+85°C, 1000 hours
+/-10% typical voltage change
Humidity Aging
+85°C, 85% RH, 1000 hours
+/-10% typical voltage change
Thermal Shock
+85°C to -40°C 5 times
+/-10% typical voltage change
Solvent Resistance MIL–STD–202, Method 215F
Moisture Sensitivity Level 1, J–STD–020C
Lead Material Copper Clad Steel Wire
Soldering
Characteristics Solderability per MIL–STD–202,
Method 208E
Insulating Material
Cured, flame retardant epoxy polymer
meets UL94V–0 requirements
Device Labeling
Marked with LF, voltage, UL/CSA Logos,
and date code
Physical Specifications Environmental Specifications
0
50
100
150
200
250
300
0 0.5 1 1.5 2 2.5 3 3.5 4
TIME(MINUTES)
T
E
M
P
E
RAT
URE
(
ºC)
Maximum Wave 240C
Lead–free Wave Solder Profile
0
50
100
150
200
250
300
0 0.5 1 1.5 2 2.5 3 3.5 4
TIME(MINUTES)
T
EMPER
A
T
U
R
E
(º
C
)
Maximum Wave 260C
Non Lead–free Wave Solder Profile
Phenolic coated devices are available with improved maximum operating temperature 125ºC.
These devices also have improved temperature cycling capability. Ratings and specifications
are per standard series except Hi–Pot Encapsulation (Isolation Voltage Capability) = 500V.
To order: add 'X1347' to part number (e.g. V25S150PX1347). These devices are NOT UL, CSA,
CECC or VDE certified.Contact factory for further details.
Figure 5 Figure 6