Surface Mount Resettable PTCs
Revision October 18, 2019
1 / 4
@ UN Semiconductor Co., Ltd. 2019
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
The SMD1210 Series PTC provides surface mount
over-current protection for applications where space is at a
premium and reset table protection is desired.
RoHS compliant, Lead-Free and Halogen-Free
Fast time-to-trip
Compact design saves board space
Compatible with high temperature solders
Agency recognition: UL
Low-profile
Battery PCM
PDAs & Charger, Analog & digital line card
Digital cameras
General electronics
USB peripherals
Power ports
Part Number
I
hold
(A)
I
trip
(A)
V
max
(Vdc)
I
max
(A)
P
dtyp.
(W)
Maximum Time
To Trip
Resistance
Current
(A)
Time
(Sec.)
R
min
(Ω)
R
max
(Ω)
SMD1210-005 0.05 0.15 60 100 0.60 0.25 1.50 2.800 50.000
SMD1210-010 0.10 0.30 30 100 0.60 0.50 0.60 0.800 15.000
SMD1210-020 0.20 0.40 30 100 0.60 8.00 0.02 0.400 5.000
SMD1210-020-16V 0.20 0.40 16 100 0.60 8.00 0.02 0.400 5.000
SMD1210-035 0.35 0.75 16 100 0.60 8.00 0.20 0.200 1.300
SMD1210-050 0.50 1.00 13.2 100 0.60 8.00 0.10 0.180 0.900
SMD1210-050-24V 0.50 1.00 24 100 0.60 8.00 0.10 0.180 0.900
SMD1210-075 0.75 1.50 6 100 0.60 8.00 0.10 0.070 0.400
SMD1210-075-16V 0.75 1.50 16 100 0.60 8.00 0.10 0.070 0.400
SMD1210-110 1.10 2.20 6 100 0.60 8.00 0.30 0.050 0.210
SMD1210-110-12V 1.10 2.20 12 100 0.60 8.00 0.30 0.050 0.230
SMD1210-150 1.50 3.00 6 100 0.60 8.00 0.50 0.030 0.110
SMD1210-150-12V 1.50 3.00 12 100 0.60 8.00 0.50 0.030 0.110
SMD1210-175 1.75 3.50 6 100 0.80 8.00 0.60 0.020 0.080
SMD1210-200 2.00 4.00 6 100 0.80 8.00 1.00 0.015 0.070
Surface Mount Resettable PTCs
Revision October 18, 2019
2 / 4
@ UN Semiconductor Co., Ltd. 2019
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
I
hold
= Hold current: maximum current device will pass without tripping in 25°C still air.
I
trip
= Trip current: minimum current at which the device will trip in 25°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
dtyp.
= Power dissipated from device when in the tripped state at 25°C still air.
R
min
= Minimum resistance of device in initial (un-soldered) state.
R
max
= Maximum resistance of device in initial (un-soldered) state.
R
1max
= Maximum resistance of device at 25°C measured one hour after tripping.
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
Derating Curves for SMD1210 Series
Ambient Temperature (°C)
SMD1210-200-16V
2.00 4.00 16 100 0.80 8.00 1.00 0.015 0.070
SMD1210-260
2.60 5.20 6 100 0.80 8.00 2.00 0.010 0.060
Part Number
Ambient Operation Temperature
-40°C -20°C 0°C 25°C 40°C 50°C 60°C 70°C 85°C
Hold Current (A)
SMD1210-005 0.08 0.07 0.06 0.05 0.04 0.04 0.03 0.03 0.02
SMD1210-010 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.03
SMD1210-020 0.29 0.26 0.22 0.20 0.16 0.14 0.13 0.11 0.08
SMD1210-035 0.47 0.45 0.40 0.35 0.33 0.28 0.24 0.21 0.18
SMD1210-050 0.76 0.67 0.58 0.50 0.43 0.40 0.36 0.32 0.28
SMD1210-075 1.00 0.97 0.86 0.75 0.64 0.59 0.54 0.48 0.40
SMD1210-110 1.69 1.48 1.29 1.10 0.88
0.76
0.65 0.57 0.43
SMD1210-150 2.13 1.92 1.71 1.50 1.26 1.14 1.01 0.89 0.71
SMD1210-175 2.54 2.30 2.02 1.75 1.47 1.33 1.18 1.05 0.86
SMD1210-200 2.90 2.63 2.31 2.00 1.68 1.52 1.35 1.20 0.98
SMD1210-260 3.43 3.22 2.93 2.60 2.23 2.03 1.87 1.57 1.35