•ꢀ
•ꢀ
•ꢀ
•ꢀ
•ꢀ
USBꢀperipherals
Diskꢀdrives
Mobileꢀphonesꢀ-ꢀbatteryꢀ
andꢀportꢀprotection
•ꢀ
•ꢀ
PDAsꢀ/ꢀdigitalꢀcameras
CD-ROMs
Gameꢀconsoleꢀportꢀ
protection
PCꢀmotherboardsꢀ-ꢀplugꢀ
andꢀplayꢀprotection
Rꢀ1maxꢀ=ꢀ
Maximumꢀresistanceꢀofꢀdeviceꢀatꢀ20°Cꢀmeasuredꢀoneꢀhourꢀafterꢀtrippingꢀorꢀreflowꢀ
solderingꢀofꢀ260°Cꢀforꢀ20ꢀsec.
POLYFUSE® Resettable PTCs
Surface Mount
1210L Series
Description
Theꢀ1210Lꢀseriesꢀdeviceꢀprovidesꢀsurfaceꢀmountꢀ
overcurrentꢀprotectionꢀforꢀapplicationsꢀwhereꢀspaceꢀisꢀatꢀ
aꢀpremiumꢀandꢀresettableꢀprotectionꢀisꢀdesired.
Features
•ꢀ
•ꢀ
•ꢀ
RoHSꢀcompliantꢀandꢀꢀꢀ
lead-freeꢀ
•ꢀ
•ꢀ
•ꢀ
Lowꢀresistance
Low-profile
Fastꢀresponseꢀtoꢀfaultꢀ
currents
Compatibleꢀwithꢀhighꢀ
temperatureꢀsolders
Compactꢀdesignꢀsavesꢀ
boardꢀspace
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
Applications
R50082521
Electrical Characteristics
Maximum Time
To Trip
Agency
Approvals
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
Iꢀholdꢀ=ꢀHoldꢀcurrent:ꢀmaximumꢀcurrentꢀdeviceꢀwillꢀpassꢀwithoutꢀtrippingꢀinꢀ20°Cꢀstillꢀair.ꢀ
Iꢀtripꢀ=ꢀTripꢀcurrent:ꢀminimumꢀcurrentꢀatꢀwhichꢀtheꢀdeviceꢀwillꢀtripꢀinꢀ20°Cꢀstillꢀair.
Vꢀmaxꢀ=ꢀMaximumꢀvoltageꢀdeviceꢀcanꢀwithstandꢀwithoutꢀdamageꢀatꢀratedꢀcurrentꢀ(Iꢀmax)ꢀ
Rꢀtypꢀ=ꢀTypicalꢀresistanceꢀofꢀdeviceꢀinꢀinitialꢀ(un-soldered)ꢀstate.
Caution:ꢀOperationꢀbeyondꢀtheꢀspecifiedꢀratingꢀmayꢀresultꢀinꢀdamageꢀandꢀpossibleꢀarcingꢀ
andꢀflame.
Iꢀmaxꢀ=ꢀMaximumꢀfaultꢀcurrentꢀdeviceꢀcanꢀwithstandꢀwithoutꢀdamageꢀatꢀratedꢀvoltageꢀ(Vmax
Pꢀdꢀ=ꢀPowerꢀdissipatedꢀfromꢀdeviceꢀwhenꢀinꢀtheꢀtrippedꢀstateꢀatꢀ20°Cꢀstillꢀair.
Rꢀminꢀ=ꢀMinimumꢀresistanceꢀofꢀdeviceꢀinꢀinitialꢀ(un-soldered)ꢀstate.
)
www.littelfuse.com
ꢄꢄ
Electronics Designers Guide
ꢄꢀꢄ0L Series
©2006 Littelfuse
Specifications are subject to change without notice.