Littelfuse ST Series Manuel d'utilisateur

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121
Revised: June 4, 2010
POLYFUSE
®
Resettable PTCs
© 2010 Littelfuse, Inc
POLYFUSE
®
Resettable PTCs
ST Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ST.html for current information.
ST Series
Axial Lead Battery Strap Type > ST Series
ST Series
The new ST 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)
15ST120 1.2 2.7 15 100 1.2 6.00 5.00 0.085 0.160 0.220
XX
15ST120S 1.2 2.7 15 100 1.2 6.00 5.00 0.085 0.160 0.220
XX
15ST175 1.75 3.8 15 100 2.5 8.75 5.00 0.050 0.090 0.120
XX
15ST175S 1.75 3.8 15 100 2.5 8.75 5.00 0.050 0.090 0.120
XX
30ST200 2.00 4.4 30 100 1.9 10.00 4.00 0.030 0.060 0.100
XX
30ST350 3.50 6.3 30 100 2.5 20.00 3.00 0.017 0.031 0.050
XX
30ST420 4.20 7.6 30 100 2.9 20.00 6.00 0.012 0.024 0.040
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 (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.
Description
Features
Applications
RoHS compliant and
lead–free
Weldable Nickel terminals
• Low resistance
Provides overcurrent
protection at 125°C trip
temperature
Rechargeable battery cell
protection
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50119583
Items with S at end of part number identify items with slit lead option. See Dimension Drawing and Part Ordering Number System sections of this document for more information.
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Résumé du contenu

Page 1 - ST Series

121Revised: June 4, 2010POLYFUSE® Resettable PTCs© 2010 Littelfuse, IncPOLYFUSE® Resettable PTCsST SeriesSpecifications are subject to change without n

Page 2

122Revised: June 4, 2010POLYFUSE® Resettable PTCs© 2010 Littelfuse, Inc.ST SeriesSpecifications are subject to change without notice. Please refer to w

Page 3

123Revised: June 4, 2010POLYFUSE® Resettable PTCs© 2010 Littelfuse, IncPOLYFUSE® Resettable PTCsST SeriesSpecifications are subject to change without n

Page 4 - 15 ST 175 S U

124Revised: June 4, 2010POLYFUSE® Resettable PTCs© 2010 Littelfuse, Inc.ST SeriesSpecifications are subject to change without notice. Please refer to w

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