POLYFUSE® Resettable PTCs
Surface Mount
1210L Series
Description
The 1206L series device provides surface mount
overcurrent protection for applications where space is at
a premium and resettable protection is desired.
Features
• RoHS compliant and
lead-free
• Low resistance
• Low-profile
• Fast response to fault
currents
• Compatible with high
temperature solders
• Compact design saves
board space
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
Applications
• USB peripherals
• Disk drives
• Mobile phones - battery
and port protection
R50082521
• PDAs / digital cameras
• CD-ROMs
• Game console port
protection
• PC motherboards - plug
and play protection
Electrical Characteristics
Agency
Approvals
Maximum Time
To Trip
Resistance
P d
max.
(W)
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Part Number
Marking
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
Current
(A)
Time
(Sec.)
1210L005
1210L010
1210L020
1210L035
1210L050
1210L075
1210L110
1210L150
A
B
C
E
F
0.05
0.10
0.20
0.35
0.50
0.75
1.10
1.50
0.15
0.30
0.40
0.70
1.00
1.50
2.20
3.00
30
30
30
6
10
10
0.60
0.60
0.60
0.60
0.60
0.60
0.60
0.80
0.25
0.50
8.00
8.00
8.00
8.00
8.00
8.00
1.50
1.50
0.02
0.20
0.10
0.10
0.30
0.50
3.600
1.600
0.800
0.320
0.250
0.130
0.060
0.040
25.00
7.000
2.900
0.810
0.550
0.290
0.140
0.070
50.00
15.00
5.000
1.300
0.900
0.400
0.210
0.110
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
10
100
100
100
100
100
13.2
6
G
H
K
6
6
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)
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.
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.
)
1210L Series
1
www.littelfuse.com
Specifications are subject to change without notice.
Electronics Designers Guide
©2006 Littelfuse