39
Revised: June 3, 2012
POLY-FUSE® Resettable PTCs
© 2012 Littelfuse, Inc
1812L Series
Surface Mount > 1812L Series
1812L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1812L.html for current information.
1812L Series
The 1812L Series PTC provides surface mount overcurrent
protection for applications where resettable protection is
desired.
Electrical Characteristics
Part Number Marking I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
P d
typ.
(W)
Max. Time To Trip Resistance Agency Approvals
Current
(A)
Time
(Sec.)
R min
(Ω)
R 1max
(Ω)
1812L010 LF010 0.10 0.30 30 100 0.8 0.50 1.50 1.600 15.000 XX
1812L010/60 LF010-60 0.10 0.30 60 10 0.8 0.50 1.50 1.600 15.000 XX
1812L014 LF014 0.14 0.34 60 10 0.8 1.50 0.15 1.500 6.000 XX
1812L020 LF020 0.20 0.40 30 100 0.8 8.00 0.02 0.800 5.000 XX
1812L020/60 LF020-60 0.20 0.40 60 40 0.8 1.00 2.00 1.400 4.400 XX
1812L035/30 LF035-30 0.35 0.75 30 100 0.8 8.00 0.15 0.400 1.700 XX
1812L050 1LF050 0.50 1.00 15 100 0.8 8.00 0.15 0.150 1.000 XX
1812L050/30 LF050-30 0.50 1.00 30 100 0.8 8.00 0.15 0.150 1.000 XX
1812L075 1LF075 0.75 1.50 13.2 100 0.8 8.00 0.20 0.100 0.450 XX
1812L075/24 LF075-24 0.75 1.50 24 100 0.8 8.00 0.20 0.110 0.290 XX
1812L075/33 LF075-33 0.75 1.50 33 20 0.8 8.00 0.20 0.110 0.400 XX
1812L110 1LF110 1.10 2.20 8 100 0.8 8.00 0.30 0.040 0.210 XX
1812L110/16 LF110-16 1.10 1.95 16 100 0.8 8.00 0.30 0.060 0.180 XX
1812L110/24 LF110-24 1.10 1.95 24 20 0.8 8.00 0.50 0.060 0.200 XX
1812L110/33 LF110-33 1.10 1.95 33 20 0.8 8.00 0.50 0.060 0.200 XX
1812L125/6 LF125-6 1.25 2.50 6 100 0.8 8.00 0.40 0.050 0.140 XX
1812L125/16 LF125 1.25 2.50 16 100 0.8 8.00 0.40 0.050 0.140 XX
1812L150 1LF150 1.50 3.00 8 100 0.8 8.00 0.30 0.040 0.110 XX
1812L150/12 LF150-12 1.50 3.00 12 100 0.8 8.00 0.50 0.040 0.110 XX
1812L150/24 LF150-24 1.50 3.00 24 20 0.8 8.00 1.50 0.040 0.120 XX
1812L160 1LF160 1.60 2.80 8 100 0.8 8.00 1.00 0.030 0.100 XX
1812L160/12 LF160-12 1.60 2.80 12 100 0.8 8.00 1.00 0.030 0.100 XX
1812L200TH 1LF200 2.00 3.50 8 100 0.8 8.00 2.00 0.020 0.070 XX
1812L200/12 LF200-12 2.00 3.50 12 100 1.0 8.00 2.00 0.020 0.070 XX
1812L260TH 1LF260 2.60 5.00 8 100 0.8 8.00 2.50 0.015 0.047 XX
1812L260/12 LF260-12 2.60 5.00 12 100 0.8 8.00 5.00 0.015 0.055 XX
1812L300 LF300 3.00 5.00 6 100 0.8 8.00 4.00 0.012 0.040 XX
Description
Applications
t1MVHBOEQMBZQSPUFDUJPO
for motherboards and
peripherals
t64#QFSJQIFSBMT
t1$*DBSET
t(BNFDPOTPMFQPSU
protection
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50119118
Features
t3P)4DPNQMJBOUMFBEGSFF
BOEIBMPHFOGSFF
t'BTUSFTQPOTF
t$PNQBDUEFTJHO
t-PXSFTJTUBODF
t-PXQSPmMF
t$PNQBUJCMFXJUIIJHI
temperature solders
* hold)PMEDVSSFOUNBYJNVNDVSSFOUEFWJDFXJMMQBTTXJUIPVUUSJQQJOHJO¡$TUJMMBJS
*trip5SJQDVSSFOUNJOJNVNDVSSFOUBUXIJDIUIFEFWJDFXJMMUSJQJO¡$TUJMMBJS
V max.BYJNVNWPMUBHFEFWJDFDBOXJUITUBOEXJUIPVUEBNBHFBUSBUFEDVSSFOU*NBY
*max.BYJNVNGBVMUDVSSFOUEFWJDFDBOXJUITUBOEXJUIPVUEBNBHFBUSBUFEWPMUBHF7max
P d1PXFSEJTTJQBUFEGSPNEFWJDFXIFOJOUIFUSJQQFETUBUFBU¡$TUJMMBJS
3min.JOJNVNSFTJTUBODFPGEFWJDFJOJOJUJBMVOTPMEFSFETUBUF
3UZQ5ZQJDBMSFTJTUBODFPGEFWJDFJOJOJUJBMVOTPMEFSFETUBUF
31max.BYJNVNSFTJTUBODFPGEFWJDFBU¡$NFBTVSFEPOFIPVSBGUFSUSJQQJOHPSSFnPX
TPMEFSJOHPG¡$GPSTFD
Caution:0QFSBUJPOCFZPOEUIFTQFDJmFESBUJOHNBZSFTVMUJOEBNBHFBOEQPTTJCMFBSDJOHBOEnBNF
14PNFPMEFSSFGFSFODFTUPUIFTFEFWJDFTNBZJODMVEFi–CiJOUIF1BSU/VNCFS5IFi–CiTIPVMECFPNJUUFEXIFOQMBDJOHOFXPSEFSTGPSUIFEFWJDF