20T115E 데이터 시트보기 (PDF) - Littelfuse, Inc
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20T115E Datasheet PDF : 9 Pages
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Varistor Products
Radial Lead Varistors > TMOV® and iTMOV® Series
Repetitive Surge Capability for 14mm Parts
10000
1
2
1000
100
10
102
Model 14 mm
103
104
105
106
Repetitive Surge Capability for 20mm Parts
10000
1
2
1000
100
10
102
Model 20 mm
103
104
105
106
10
10
1
10
Figure 5
100
1000
Impulse Duration (μs)
NOTE: Average power dissipation of transients should not exceed 0.6W
10000
1
10
Figure 6
100
1000
Impulse Duration (μs)
NOTE: Average power dissipation of transients should not exceed 1.0W
10000
Wave Solder Profile
Because the TMOV® and iTMOV® varistors contain a thermal protection device, care must be taken when soldering the devices into place.
Two soldering methods are possible. Firstly, hand soldering: It is recommended to heat-sink the leads of the device. Secondly, wave solder-
ing: It is critically important that all preheat stage and the solder bath temperatures are rigidly controlled.
Non Lead–free Profile
Lead–free Profile
300
Maximum Wave 240C
250
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Figure 7
TIME(MINUTES)
300
Maximum Wave 260C
250
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Figure 8
TIME(MINUTES)
Physical Specifications
Lead Material
Soldering
Characteristics
Non Lead–free parts: Solder coated
Copper wire, or Tin–coated Copper wire
Lead–free parts: Tin–coated Copper wire
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
Environmental Specifications
Operating/Storage
Temperature
Passive Aging
Humidity Aging
Thermal Shock
-40°C to +85°C
+85°C, 1000 hours
+/-10% typical voltage change
+85°C, 85% RH , 1000 hours
+/-10% typical voltage change
+85°C to -40°C 5 times
+/-10% typical voltage change
Solvent Resistance
MIL–STD–202, Method 215F
©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Moisture Sensitivity
Revision: June 10, 2010
Level 1, J–STD–020C
TMOV® and i TMOV® Varistor Series
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