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Varistor Products
©2009 Littelfuse, Inc.
Revision: November 5, 2009
HB34, HF34 and HG34 Varistor Series
Industrial High Energy Terminal Varistors > HB34, HF34 & HG34 Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/hb34 or /hf34 or /hg34.html
for current information.
Operating/Storage
Temperature
-55°C to +85°C/-55°C to +125°C
Humidity Aging
+85°C, 85% RH, 1000 hours
+/-10% Voltage
Thermal Shock
+85°C to -40°C 10 times
+/-10% Voltage
Solvent Resistance
MILSTD202, Method 215F
Moisture Sensitivity
Level 1, JSTD020C
Lead Material
Tin-plated Copper
Soldering
Characteristics
Solderability per MILSTD202,
Method 208E
Insulating Material
Cured, flame retardant epoxy polymer
meets UL94V0 requirements.
Device Labeling
LF, Part Number and date code
Physical Specifications
Environmental Specifications
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 240C
Leadfree 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 Leadfree Profile
Figure 5
Figure 6
Summary :
Device Labeling LF, Part Number and date code Physical Specifications Environmental Specifications 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 240C Leadfree 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 Leadfree Profile Figure 5 Figure 6
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