SMD1210-005
SMD1210-010
SMD1210-020
SMD1210-035
SMD1210-035/30V
SMD1210-050
SMD1210-050/30V
SMD1210-075
SMD1210-075/24V
SMD1210-110
SMD1210-110/12V
SMD1210-110/16V
SMD1210-150
SMD1210-175
SMD1210-200
UN
UJ
UF
UM
UM
UG
UG
US
US
UU
UU
UU
UK
UW
UY
0.05
0.10
0.20
0.35
0.35
0.50
0.50
0.75
0.75
1.10
1.10
1.10
1.50
1.75
2.00
2.80
0.80
0.40
0.20
0.20
0.18
0.18
0.07
0.07
0.05
0.05
0.05
0.03
0.02
0.015
0.15
0.30
0.40
0.75
0.75
1.00
1.00
1.50
1.50
2.20
2.20
2.20
3.00
3.50
4.00
60
30
30
16
30
16
30
6
24
6
12
16
6
6
6
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.8
0.8
0.8
0.8
0.8
0.25
0.50
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
1.50
0.60
0.02
0.20
0.20
0.10
0.10
0.10
0.10
0.30
0.30
0.30
0.50
0.60
1.00
50.00
15.00
5.00
1.30
1.30
0.90
0.90
0.40
0.45
0.21
0.25
0.25
0.11
0.08
0.07
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 (Imax)
I
max= Maximum fault current device can withstand without damage at rated voltage (Vmax)
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.
Description
Applicable
ROHS
www.unsemi.com.tw
Features
Revision March 1,2022 www.unsemi.com.tw
For technical questions, contact: tech@unsemi.com.tw
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
1/6
SMD1210 Series
Surface Mount Resettable PTCs
Electrical Parameters
Part Number
I trip
(A)
I hold
(A)
V max
(Vdc)
I max
(A)
Pdtyp.
(W)
Maximum Time
To Trip
Resistance
Time
(Sec.)
Current
(A)
R min
Marking
R 1max
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
Faster tripping, 1210 Dimension
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
Revision March 1,2022 www.unsemi.com.tw
For technical questions, contact: tech@unsemi.com.tw
ROHS
Surface Mount Resettable PTCs
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
SMD1210 Series
Temperature Rerating Chart- I hold (A)
2/6
SMD1210-005
SMD1210-010
SMD1210-020
SMD1210-035
SMD1210-035/30V
SMD1210-050
SMD1210-050/30V
SMD1210-075
SMD1210-075/24V
SMD1210-110
SMD1210-110/12V
SMD1210-110/16V
SMD1210-150
SMD1210-175
SMD1210-200
0.08
0.16
0.29
0.47
0.47
0.76
0.76
1.00
1.00
1.60
1.60
1.60
2.30
2.45
2.60
0.07
0.14
0.26
0.45
0.45
0.67
0.67
0.97
0.97
1.42
1.42
1.42
2.02
2.22
2.44
0.06
0.12
0.22
0.40
0.40
0.58
0.58
0.86
0.86
1.26
1.26
1.26
1.76
2.01
2.35
0.05
0.10
0.20
0.35
0.35
0.50
0.50
0.75
0.75
1.10
1.10
1.10
1.50
1.75
2.00
0.04
0.08
0.16
0.33
0.33
0.43
0.43
0.64
0.64
0.94
0.94
0.94
1.24
1.45
1.78
0.03
0.06
0.13
0.24
0.24
0.36
0.36
0.54
0.54
0.80
0.80
0.80
1.00
1.10
1.50
0.03
0.05
0.11
0.21
0.21
0.32
0.32
0.48
0.48
0.70
0.70
0.70
0.85
0.98
1.45
0.02
0.05
0.08
0.18
0.18
0.28
0.28
0.40
0.40
0.58
0.58
0.58
0.65
0.80
1.10
0.04
0.07
0.14
0.28
0.28
0.40
0.40
0.59
0.59
0.86
0.86
0.86
1.11
1.26
1.67
Ambient Operation Temperature
Part Number
Hold Current (A)
85°C70°C60°C50°C40°C-40°C -20°C 0°C 25°C
Test Procedures and Requirement
Test Item Test Conditions Accept/Reject Criteria
R
���
No trip
No arcing or burning
No arcing or burning
In still air at 25°C
Specified current, V, 25°C
30min, at IH, 25°C
V, Imax, 100cycles
V, 1 hour
Initial Resistance
Time to Trip
Hold Current
Trip Cycle Life
Trip Endurance
Physical Characteristics
Terminal Materials Tin-Plated Nickle-copper
Meets EIA specification RS 186-9E and ANSI/J-STD-002 Category 3.
Soldering Zone