POLYFUSE
®
Resettable PTCs
Axial Leaded Strap
VL Series
Description
The new VL series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Features
• RoHS compliant and
lead-free
• Weldable nickel terminals
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
R50082521
• Compact design saves
board space
• Low resistance
• Slim, low profile design
Applications
• Rechargeable battery cell
protection
Electrical Characteristics
I
hold
(A)
1.70
1.75
1.75
2.30
I
trip
(A)
4.10
4.20
4.20
5.00
V
max
(Vdc)
12
12
12
12
I
max
(A)
100
100
100
100
P
d
max.
(W)
1.4
1.4
1.4
1.5
Maximum Time
To Trip
Current
(A)
8.50
8.75
8.75
10.00
Time
(Sec.)
5.00
5.00
5.00
5.00
R
min
(Ω)
0.018
0.017
0.017
0.012
Resistance
R
typ
(Ω)
0.032
0.031
0.031
0.018
R
1max
(Ω)
0.064
0.062
0.062
0.036
X
X
X
X
X
X
X
X
Agency
Approvals
Part Number
12VL170
12VL175L
12VL175XL
12VL230
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 (V
max
)
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.
VL Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
LITTELFUSE [ LITTELFUSE ]
