125
Revised: June 4, 2010
POLYFUSE® Resettable PTCs
© 2010 Littelfuse, Inc
POLYFUSE® Resettable PTCs
VL Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/VL.html for current information.
VL Series
Axial Lead Battery Strap Type > VL Series
VL Series
The new VL Series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Electrical Characteristics
Part Number I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
P d
max.
(W)
Maximum Time
To Trip Resistance Agency
Approvals
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
12VL170 1.70 4.10 12 100 1.4 8.50 5.00 0.018 0.032 0.064 XX
12VL175L 1.75 4.20 12 100 1.4 8.75 5.00 0.017 0.031 0.062 XX
12VL175XL 1.75 4.20 12 100 1.4 8.75 5.00 0.017 0.031 0.062 XX
12VL230 2.30 5.00 12 100 1.5 10.00 5.00 0.012 0.018 0.036 XX
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
V max = Maximum voltage device can withstand without damage at rated current (I max)
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
R typ = Typical resistance of device in initial (un-soldered) state.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
Description
Features
Applications
• RoHS compliant and
lead–free
• Weldable Nickel terminals
• Slim, low profile design
• Compact design saves
board space
• Low resistance
• Rechargeable battery cell
protection
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50119583
126
Revised: June 4, 2010
POLYFUSE® Resettable PTCs
© 2010 Littelfuse, Inc.
VL Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/VL.html for current information.
Axial Lead Battery Strap Type > VL Series
Ambient Operation Temperature
-40°C -20°C 0°C 25°C 40°C 50°C 60°C 70°C
Part Number Hold Current (A)
12VL170 3.5 2.9 2.4 1.70 1.2 1.0 0.7 0.3
12VL175L 3.5 2.9 2.4 1.75 1.3 1.0 0.8 0.3
12VL175XL 3.5 2.9 2.4 1.75 1.3 1.0 0.8 0.3
12VL230 5.0 4.2 3.4 2.30 1.7 1.3 0.9 0.4
Temperature Rerating
Temperature Rerating Curve
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
10%
30%
50%
70%
90%
110%
130%
150%
170%
Temperature (°C)
Percentage of Rated Current
220%
190%
Average Time Current Curves
The average time current curves and Temperature Rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
Time in Seconds
Current in Amperes
0.01
0.1
1
10
1.0
10 100 1000
1.70 A
2.30 A
1.75 A
VL
127
Revised: June 4, 2010
POLYFUSE® Resettable PTCs
© 2010 Littelfuse, Inc
POLYFUSE® Resettable PTCs
VL Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/VL.html for current information.
VL Series
Axial Lead Battery Strap Type > VL Series
Environmental Specifications
Operating/Storage
Temperature -40°C to +85°C
Passive Aging
+60°C, 1000 hours
-/+20% typical resistance change
-40°C, 1000 hours
-/+5% typical resistance change
Humidity Aging +60°C, 95% R.H.,1000 hours,
-/+10% typical resistance change
Thermal Shock
MIL–STD–202F, Method 107G,
+85°C to -40°C 10 times
-/+5% typical resistance change
Vibration MIL–STD–883C, Method 2026,
No change
Physical Specifications
Terminal Material 0.13mm nominal thickness, quarter-hard
Nickel
Insulating Material Polyester tape
Dimensions
Part
Number Figure
ABCD1D2E
Inches mm Inches mm Inches mm Inches mm Inches mm Inches mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max Min Max Min Max Min Max Min Max. Min. Max.
12VL170 1 0.82 0.91 20.80 23.20 0.14 0.15 3.50 3.90 -- 0.03 -- 0.80 0.18 0.26 4.50 6.50 0.18 0.26 4.50 6.50 0.09 0.10 2.40 2.60
12VL175L 2 1.15 1.25 29.30 31.70 0.11 0.13 2.90 3.30 -- 0.03 -- 0.80 0.20 0.27 5.20 6.80 0.39 0.49 10.00 12.50 0.09 0.10 2.40 2.60
12VL175XL 2 1.00 1.11 25.50 28.20 0.14 0.15 3.50 3.90 -- 0.03 -- 0.80 0.34 0.41 8.70 10.30 0.22 0.29 5.70 7.30 0.09 0.10 2.40 2.60
12VL230 1 0.82 0.91 20.90 23.10 0.19 0.21 4.90 5.30 -- 0.03 -- 0.80 0.16 0.23 4.10 5.80 0.16 0.23 4.10 5.80 0.15 0.16 3.90 4.10
E
B
D1 D2
C
A
Figure 1 Figure 2
E
B
D1 D2
C
A
Part Marking System
VL
230
Product Series
Current Rating
Lot Number
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
VL
230
XXAK
Product Series
Current Rating
Littelfuse
Trademark
Top Side
Bottom Side
Double Sided Marking
128
Revised: June 4, 2010
POLYFUSE® Resettable PTCs
© 2010 Littelfuse, Inc.
VL Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/VL.html for current information.
Axial Lead Battery Strap Type > VL Series
QUANTITY CODE: U = 500 (bulk)
VOLTAGE RATING (VDC)
SERIES
HOLD CURRENT (VALUE DIVIDED BY 100 = HOLD CURRENT IN AMPS)
LEAD OPTIONS: Blank = standard
L = long lead
XL = extended long lead
12 VL 175 XL U
Part Ordering Number System
Packaging
Part Number Ordering
Number
I hold
(A)
I hold
Codes
Packaging
Option Quantity Quantity &
Packaging Codes
12VL170 12VL170U 1.70 170 Bulk 500 U
12VL175L 12VL175LU 1.75 175 Bulk 500 U
12VL175XL 12VL175XLU 1.75 175 Bulk 500 U
12VL230 12VL230U 2.30 230 Bulk 500 U
