POLYFUSE® Resettable PTCs Surface Mount > Lo Rho Series Lo Rho Surface Mount Series Description The Littelfuse Lo Rho Surface Mount PPTC (polymer positive temperature coefficient) series offers ultra low normal operating resistance while maintains the same performance of existing Littelfuse PPTC products. Features Agency Approvals AGENCY t$PNQBDUEFTJHOTBWFT board space t5IJOQSPmMFNN t$PNQBUJCMFXJUIIJHI temperature solders t-P3IPMPXSFTJTUBODF at normal operating hold current) t3P)4DPNQMJBOU-FBE 'SFFBOE)BMPHFO'SFF t'BTUSFTQPOTFUPGBVMU currents AGENCY FILE NUMBER E183209 R50119118 Applications t1%"TEJHJUBMDBNFSBT t(BNFDPOTPMFQPSU protection t64#QFSJQIFSBMT t%JTLESJWFT t$%30.T t1MVHBOEQMBZQSPUFDUJPO for motherboards and peripherals Electrical Characteristics I trip (A) V max (Vdc) I max (A) Pd max. (W) Maximum Time To Trip Part Number Marking I hold (A) 0805L110SLYR ) 1.10 1.80 6 50 1206L110SLYR ) 1.10 2.20 6 50 1206L150SLYR , 1.50 3.00 6 50 0.8 8.00 0.30 1210L200SLYR - 2.00 4.00 6 50 0.8 8.00 3.00 -4-4:3 5 3.50 6 50 0.8 2.00 1812L190SLPR LF 19 1.90 4.90 6 50 1.0 9.50 4.50 Resistance Agency Approvals Current (A) Time (Sec.) R min (Ω) R 1max (Ω) 0.6 8.00 0.30 0.030 0.130 X X 0.8 8.00 0.30 0.015 0.100 X X 0.010 0.065 X X 0.005 0.024 X X 0.003 0.018 X X 0.003 0.025 X X I hold)PMEDVSSFOUNBYJNVNDVSSFOUEFWJDFXJMMQBTTXJUIPVUUSJQQJOHJO¡$TUJMMBJS I trip5SJQDVSSFOUNJOJNVNDVSSFOUBUXIJDIUIFEFWJDFXJMMUSJQJO¡$TUJMMBJS V max = Maximum voltage device can withstand without damage at rated current (I max) I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) P d1PXFSEJTTJQBUFEGSPNEFWJDFXIFOJOUIFUSJQQFETUBUFBU¡$TUJMMBJS R min.JOJNVNSFTJTUBODFPGEFWJDFJOJOJUJBMVOTPMEFSFE TUBUF R 1max.BYJNVNSFTJTUBODFPGEFWJDFBU¡$NFBTVSFEPOFIPVSBGUFSUSJQQJOHPSSFnPXTPMEFSJOHPG¡$GPSTFD Caution:0QFSBUJPOCFZPOEUIFTQFDJmFESBUJOHNBZSFTVMUJOEBNBHFBOEQPTTJCMFBSDJOHBOEnBNF ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/LoRho.html for current information. Lo Rho Series Revised: October 7, 2009 Lo Rho Series Available in 5 hold current ratings, all devices are TUV and UL certified and possess a maximum fault current rating of 40A. POLYFUSE® Resettable PTCs Surface Mount > Lo Rho Series Temperature Rerating Ambient Operation Temperature ¡$ ¡$ ¡$ 0805L110SLYR 1.93 1.65 1.38 ¡$ ¡$ ¡$ ¡$ ¡$ Hold Current (A) Part Number 1.10 0.83 0.55 0.41 0.21 1206L110SLYR 2.00 1.40 1.10 0.83 0.56 0.44 0.24 1206L150SLYR 2.32 1.95 1.50 1.15 0.64 0.36 1210L200SLYR 3.26 2.50 2.00 1.29 1.09 -4-4:3 5.00 4.60 4.05 3.50 2.80 2.00 1.60 1.00 1812L190SLPR 3.00 2.58 2.22 1.90 1.49 1.14 0.93 0.61 Temperature Rerating Curve 1812L190SL 170% 150% Percentage of Rated Current 1210L200SL 1206L150SL 0805L110SL 1206L110SL Average Time Current Curves LoRho Series 10.000 130% 110% 90% 70% 50% Time in Seconds 30% 1.000 10% -40 -30 -20 -10 0 10 20 30 40 Temperature (°C) 50 60 70 80 Environmental Specifications 0.100 Operating/Storage Temperature ¡$UP¡$ Maximum Device Surface Temperature in Tripped State ¡$ Passive Aging ¡$IPVST UZQJDBMSFTJTUBODFDIBOHF Humidity Aging ¡$3)IPVST UZQJDBMSFTJTUBODFDIBOHF Thermal Shock .*-o45%o.FUIPE( ¡$¡$UJNFT UZQJDBMSFTJTUBODFDIBOHF Solvent Resistance .*-o45%o.FUIPE No change Terminal Material 4PMEFS1MBUFE$PQQFS 4PMEFS.BUFSJBM.BUUF5JO4O Vibration .*-o45%o$.FUIPE Condition A No change Lead Solderability .FFUT&*"4QFDJmDBUJPO34& "/4*+45%$BUFHPSZ Moisture Sensitivity Level -FWFM+o45%o$ 0.010 1.0 10.0 100.0 Current in Amperes The average time current curves and Temperature Rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. Physical Specifications ©2009 Littelfuse, Inc. Lo Rho Series Revised: October 7, 2009 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/LoRho.html for current information. POLYFUSE® Resettable PTCs Surface Mount > Lo Rho Series Profile Feature 1C'SFF"TTFNCMZ "WFSBHF3BNQ6Q3BUF5S(max) to TP) ¡$TFDPOENBY 1SF)FBU Temperature Min (Ts(min)) ¡$ Temperature Max (Ts(max)) ¡$ Time (Min to Max) (ts) 60 – 180 secs Time Maintained Temperature (TL) ¡$ "CPWF 60 – 150 seconds Temperature (tL) 1FBL$MBTTJmDBUJPO5FNQFSBUVSF5P) 260¡$ 5JNFXJUIJO¡$PGBDUVBMQFBL Temperature (tp) 20 – 40 seconds 3BNQEPXO3BUF ¡$TFDPOENBY 5JNF¡$UPQFBL5FNQFSBUVSF5P) 8 minutes Max. "MMUFNQFSBUVSFSFGFSUPUPQTJEFPGUIFQBDLBHFNFBTVSFEPOUIFQBDLBHFCPEZTVSGBDF *GSFnPXUFNQFSBUVSFFYDFFETUIFSFDPNNFOEFEQSPmMFEFWJDFTNBZOPUNFFUUIF performance requirements 3FDPNNFOEFESFnPXNFUIPET*3WBQPSQIBTFPWFOIPUBJSPWFO/2 environment for lead 3FDPNNFOEFENBYJNVNQBTUFUIJDLOFTTJTNNJODI %FWJDFTDBOCFDMFBOFEVTJOHTUBOEBSEJOEVTUSZNFUIPETBOETPMWFOUT %FWJDFTDBOCFSFXPSLFEVTJOHUIFTUBOEBSEJOEVTUSZQSBDUJDFT Dimensions Device Dimensions Solder Pad Layout C A Top View Side View B H G F F Marking code varies by device -See Electrical Characteristics table Bottom View D E Device Dimension Part Number A B C D E mm mm mm mm mm Min 0805L110SLYR Solder Pad Layout Max Min 2.00 2.20 1.20 Max Min Max Min Max Min Max 1.50 0.40 0.20 0.55 0.10 0.45 F G H mm mm mm 1.00 1.20 1.50 1206L110SLYR 3.00 3.40 1.50 1.80 0.40 0.25 0.10 0.45 1.00 1.80 1.80 1206L150SLYR 3.00 3.40 1.50 1.80 0.40 0.25 0.10 0.45 1.00 1.80 1.80 1210L200SLYR -4-4:3 1812L190SLPR 3.00 3.43 2.35 2.80 0.40 0.25 0.20 0.50 1.00 2.00 2.50 3.00 3.43 2.35 2.80 0.60 1.00 0.25 0.20 0.50 1.00 2.00 2.50 3.41 0.40 0.30 1.20 0.25 0.65 3.45 3.15 ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/LoRho.html for current information. Lo Rho Series Revised: October 7, 2009 Lo Rho Series Soldering Parameters POLYFUSE® Resettable PTCs Surface Mount > Lo Rho Series Part Ordering Number System Packaging 0805 L 110 SL Y R SERIES Part Number PACKAGING STYLE R: Tape & Reel Quantity & I hold I hold Packaging Quantity Packaging (A) Code Option Codes 0805L110SLYR 1.10 110 4000 YR QUANTITY CODE 1206L110SLYR 1.10 110 4000 YR 1206L150SLYR 1.50 150 4000 YR 1210L200SLYR 2.00 200 4000 YR -4-4:3 3.50 350 4000 YR 190 2000 PR P: 2000 Y: 4000 SL: LoRho PTC Series I HOLD HOLD CURRENT CODE 1812L190SLPR 1.90 Tape & Reel L: LITTELFUSE SURFACE MOUNT PPTC SIZE Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) REEL DIMENSIONS: EIA-481-1 (mm) 0805L110SL 1206L110SL 1206L150SL 1210L200SL 1210L350SL-S 1812P190SL W F E1 0805L110SL 1210L200SL 1206L110SL 1206L150SL 1812P190SL H W D ¦ D0 F D1 1.0 (min) 1.00 (MIN) 1.0 (min) C P0 H1 P1 W1 P2 W2 A0 W3 B0 W4 T K0 Leader min. 390 390 390 390 Trailer min. 160 160 160 160 Tape and Reel Diagram H P1 P2 D0 E1 P0 W4 W3 D F W T W2 W F D2 C W1 A0 K0 H1 B0 ©2009 Littelfuse, Inc. Lo Rho Series Revised: October 7, 2009 Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/LoRho.html for current information.