POLY-FUSE® Resettable PTCs Surface Mount > 1206L Series 1206L Series RoHS Description The 1206L Series PTC provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired. Features • RoHS compliant, lead-free • Low resistance and halogen-free • Low-profile • Fast response to fault • Compatible with high currents temperature solders • Compact design saves board space Agency Approvals Applications AGENCY AGENCY FILE NUMBER • USB peripherals • Mobile phones - battery • Disk drives and port protection E183209 • CD-ROMs • Disk drives R50119118 • Plug and play protection • PDAs / digital cameras for motherboards and • Game console port peripherals protection Electrical Characteristics Maximum Time Agency P Resistance I I V I d To Trip Approvals Part Number Marking hold trip max max typ. (A) (A) (Vdc) (A) Current Time R R (W) min 1max (A) (Sec.) (Ω) (Ω) 1206L005/60 f6 0.05 0.15 60 10 0.6 0.25 1.50 3.60 20.00 X X 1206L010/60 n6 0.10 0.25 60 10 0.6 0.50 1.50 1.50 10.00 X X 1206L012 A 0.125 0.29 30 100 0.6 1.00 0.20 1.500 6.000 X X 1206L016 B 0.16 0.37 30 100 0.6 1.00 0.30 1.200 4.500 X X 1206L0201 2 C 0.20 0.42 24 100 0.6 8.00 0.10 0.650 2.600 X X 1206L0251 D 0.25 0.50 16 100 0.6 8.00 0.08 0.550 2.300 X X 1206L0351 E 0.35 0.75 6 100 0.6 8.00 0.10 0.300 1.200 X X 1206L035/16 J 0.35 0.75 16 100 0.6 8.00 0.10 0.300 1.200 X X 1206L035/30 J3 0.35 0.75 30 100 0.6 8.00 0.10 0.30 1.20 X X 1206L0501 F 0.50 1.00 6 100 0.6 8.00 0.10 0.150 0.700 X X 1206L050/15 M 0.50 1.00 15 100 0.6 8.00 0.10 0.150 0.750 X X 1206L050/24 F2 0.50 1.00 24 100 0.6 8.00 0.10 0.15 0.75 X X 1206L075/13.2 G1 0.75 1.50 13.2 100 0.6 8.00 0.20 0.090 0.350 X X 1206L075/16 GF 0.75 1.50 16 100 0.6 8.00 0.20 0.090 0.2900 X X 1206L075TH1 G 0.75 1.50 8 100 0.6 8.00 0.20 0.090 0.290 X X 1206L110TH1 H 1.10 2.20 8 100 0.8 8.00 0.10 0.040 0.210 X X 1206L150TH1 K 1.50 3.00 8 100 0.8 8.00 0.30 0.040 0.120 X X 1206L175 V 1.75 3.50 6 100 0.8 8.00 0.50 0.020 0.090 X X 1206L200 L 2.00 3.50 6 100 0.8 8.00 1.50 0.018 0.080 X X I = Hold current: maximum current device will pass without tripping in 20°C still air. R = Minimum resistance of device in initial (un-soldered) state. hold min I = Trip current: minimum current at which the device will trip in 20°C still air. R = Typical resistance of device in initial (un-soldered) state. trip typ V = Maximum voltage device can withstand without damage at rated current (I max) R = Maximum resistance of device at 20°C measured one hour after tripping or reflow I ma x= Maximum fault current device can withstand without damage at rated voltage (V ) 1max soldering of 260°C for 20 sec. max max P = Power dissipated from device when in the tripped state at 20°C still air. d Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. 1 Some older references to these devices may include “–C“ in the Part Number. The “–C“ should be omitted when placing new orders for the device. 2 Part Number tested and complied with AEC-Q200. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19

POLY-FUSE® Resettable PTCs Surface Mount > 1206L Series Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 20°C 40°C 50°C 60°C 70°C 85°C Part Number Hold Current (A) 1206L005/60 0.076 0.068 0.060 0.050 0.043 0.039 0.034 0.030 0.023 1206L010/60 0.15 0.14 0.12 0.10 0.083 0.074 0.065 0.056 0.042 1206L012 0.18 0.16 0.14 0.125 0.10 0.09 0.08 0.07 0.05 1206L016 0.22 0.20 0.18 0.16 0.14 0.12 0.10 0.09 0.08 1206L020 0.28 0.25 0.23 0.20 0.17 0.15 0.14 0.12 0.09 1206L025 0.37 0.33 0.29 0.25 0.22 0.20 0.17 0.15 0.12 1206L035 0.50 0.45 0.40 0.35 0.30 0.27 0.24 0.21 0.15 1206L035/16 0.50 0.45 0.40 0.35 0.30 0.27 0.24 0.21 0.15 1206L035/30 0.50 0.45 0.40 0.35 0.30 0.27 0.24 0.21 0.15 1206L050 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25 1206L050/15 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25 1206L050/24 0.71 0.64 0.57 0.50 0.42 0.39 0.35 0.31 0.25 1206L075/13.2 1.14 1.04 0.88 0.75 0.65 0.59 0.54 0.49 0.41 1206L075/16 1.14 1.01 0.88 0.75 0.65 0.59 0.54 0.49 0.41 1206L075TH 1.14 1.01 0.88 0.75 0.65 0.59 0.54 0.49 0.41 1206L110TH 1.64 1.46 1.30 1.10 0.92 0.83 0.80 0.65 0.52 1206L150TH 2.20 1.99 1.77 1.50 1.34 1.23 1.10 1.01 0.84 1206L175 2.50 2.25 2.00 1.75 1.55 1.45 1.35 1.25 1.10 1206L200 2.60 2.44 2.35 2.00 1.78 1.67 1.50 1.45 1.10 Notes: The temperature rerating data is only for reference, please contact Littelfuse technical support for detail temperature rerating information. Average Time Current Curves Temperature Rerating Curve V V 170% 5 5 100 0.05A/60V0.10A/60V0.12A0.16A0.20A0.25A0.35A/30V0.35A, 0.35A/1 0.50A/24V0.50A, 0.50A/10.75A0.75A/13.2V1.1A1.5A1.75A2.0A 1206L Percentage of Rated Current 111579351000000%%%%%% 30% 10 10% s -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 d n Temperature (°C) o c e S n 1 e i m Additional Information Ti 0.1 Datasheet Resources SSaammpplleess 0.01 0.1 1 10 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. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19

POLY-FUSE® Resettable PTCs Surface Mount > 1206L Series Soldering Parameters Profile Feature Pb-Free Assembly t P T Average Ramp-Up Rate (T to T) 3°C/second max P Critical Zone S(max) P RRaammpp--uupp tL to tP Temperature Min (T ) 150°C s(min) T L t Pre Heat: Temperature Max (Ts(max)) 200°C TS(max) L Time (Min to Max) (ts) 60 – 180 secs eru RRaammpp--ddoown Time Maintained Temperature (TL) 217°C tar T PPrreehheeaatt e S(min) Above: Temperature (tL) 60 – 150 seconds pm tS e Peak / Classification Temperature (T) 260+0/-5 °C T P 25 Time within 5°C of actual peak 20 – 40 seconds time to peak temperature Time Temperature (t) p Ramp-down Rate 6°C/second max -- All temperature refer to topside of the package, measured on the package body surface -- If reflow temperature exceeds the recommended profile, devices may not meet the Time 25°C to peak Temperature (T) 8 minutes Max. P performance requirements -- Recommended reflow methods: IR, vapor phase oven, hot air oven, N environment 2 for lead -- Recommended maximum paste thickness is 0.25mm (0.010 inch) -- Devices can be cleaned using standard industry methods and solvents -- Devices can be reworked using the standard industry practices Physical Specifications Environmental Specifications Solder-Plated Copper (Solder Material: Operating/Storage Terminal Material -40°C to +85°C Matte Tin (Sn)) Temperature Maximum Device Surface Meets EIA Specification RS186-9E, Lead Solderability Temperature in Tripped 125°C ANSI/J-STD-002 Category 3. State +85°C, 1000 hours Passive Aging -/+5% typical resistance change +85°C, 85%, R.H.,1000 hours Humidity Aging -/+5% typical resistance change MIL–STD–202, Method 107 Thermal Shock +85°C/-40°C 20 times -30% typical resistance change MIL–STD–202, Method 215 Solvent Resistance No change MIL–STD–883, Method 2007, Vibration Condition A No change Moisture Sensivity Level Level 1, J–STD–020 © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19

POLY-FUSE® Resettable PTCs Surface Mount > 1206L Series Dimensions MARKING CODE VARIES WITH AMPERAGE RATING (SEE ELECTRICAL CHARACTERISTICS CHART) SHOWN IS 1.0 AMP RATING A C N Top Side B View View 1.80 mm Bottom N Pad (.071) 1.80 mm View Layout (.071) D E 1.00 mm (.040) A B C D E Part Inches mm Inches mm Inches mm Inches mm Inches mm Number Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max 1206L005/60 0.03 0.05 0.65 1.25 1206L010/60 0.03 0.05 0.65 1.25 1206L012 0.03 0.06 0.65 1.45 1206L016 0.03 0.06 0.65 1.45 1206L020 0.02 0.04 0.50 1.00 1206L025 0.02 0.04 0.5 1.00 1206L035 0.02 0.03 0.45 0.75 1206L035/16 0.02 0.03 0.45 0.75 1206L035/30 0.02 0.04 0.50 1.00 1206L050 0.02 0.03 0.45 0.75 1206L050/15 0.12 0.13 3.00 3.40 0.06 0.07 1.50 1.80 0.02 0.03 0.45 0.75 0.01 0.03 0.25 0.75 0.002 0.018 0.05 0.45 1206L050/24 0.03 0.05 0.75 1.25 1206L075/13.2 0.03 0.05 0.75 1.25 1206L075/16 0.03 0.05 0.75 1.25 1206L075TH 0.02 0.03 0.40 0.75 1206L110TH 0.01 0.02 0.30 0.60 1206L150TH 0.02 0.04 0.50 1.00 1206L175 0.03 0.08 0.80 1.80 1206L200 0.03 0.07 0.80 1.60 WARNING • Users shall independently assess the suitability of these devices for each of their applications • Operation of these devices beyond the stated maximum ratings could result in damage to the devices and lead to electrical arcing and/or fire • These devices are intended to protect against the effects of temporary over-current or over-temperature conditions and are not intended to perform as protective devices where such conditions are expected to be repetitive or prolonged in duration • Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can adversely affect the performance of these PPTC devices • These devices undergo thermal expansion under fault conditions, and thus shall be provided with adequate space and be protected against mechanical stresses • Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the PPTC device. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19

POLY-FUSE® Resettable PTCs Surface Mount > 1206L Series Part Ordering Number System 1206 L 380 /12 TH Y R- A -A: Automotive grade Blank: Standard version SERIES PACKAGING STYLE R: Tape & Reel QUANTITY CODE: K=10,000 Y=4,000 W=3,000 P=2,000 THIN PROFILE (Not applicable to all parts) /XX: SPECIAL VOLTAGE RATING (Not applicable to all parts. Refer to Electrical Characteristics Table) I HOLD CURRENT CODE H O L D (Refer to Electrical Characteristics Table) L: LITTELFUSE SURFACE MOUNT PPTC SIZE Packaging Options Part Number Ordering Number Halogen Free I (A) I Code Packaging Option Quantity Quantity/Pack Code hold hold 1206L005/60 1206L005/60WR Yes 0.05 050 Tape and Reel 3000 WR 1206L010/60 1206L010/60WR Yes 0.10 100 Tape and Reel 3000 WR 1206L012 1206L012WR Yes 0.125 012 Tape and Reel 3000 WR 1206L016 1206L016WR Yes 0.16 016 Tape and Reel 3000 WR 1206L020 1206L020YR Yes 0.20 020 Tape and Reel 4000 YR 1206L025 1206L025YR Yes 0.25 025 Tape and Reel 4000 YR 1206L035 1206L035YR Yes 0.35 035 Tape and Reel 4000 YR 1206L035/16 1206L035/16YR Yes 0.35 035 Tape and Reel 4000 YR 1206L035/30 1206L035/30WR Yes 0.35 350 Tape and Reel 3000 WR 1206L050 1206L050YR Yes 0.50 050 Tape and Reel 4000 YR 1206L050/15 1206L050/15YR Yes 0.50 050 Tape and Reel 4000 YR 1206L050/24 1206L050/24WR Yes 0.50 500 Tape and Reel 3000 WR 1206L075/13.2 1206L075/13.2WR Yes 0.75 075 Tape and Reel 3000 WR 1206L075/16 1206L075/16WR Yes 0.08 75 Tape and Reel 3,000 WR 1206L075TH 1206L075THYR Yes 0.75 075 Tape and Reel 4000 YR 1206L110TH 1206L110THYR Yes 1.10 110 Tape and Reel 4000 YR 1206L150TH 1206L150THWR Yes 1.50 150 Tape and Reel 3000 WR 1206L175 1206L175PR Yes 1.75 175 Tape and Reel 2000 PR 1206L200 1206L200PR Yes 2.00 200 Tape and Reel 2000 PR © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19

POLY-FUSE® Resettable PTCs Surface Mount > 1206L Series Tape and Reel Specifications TAPE SPECIFICATIONS: EIA-481-1 (mm) Packaging Code “YR”: Packaging Code “WR”: Packaging Code “PR”: 1206L020 1206L005/60 1206L175 1206L025 1206L010/60 1206L200 1206L035 1206L012 REEL DIMENSIONS: 1206L035/16 1206L016 EIA-481-1 (mm) 1206L050 1206L035/30 1206L050/15 1206L050/24 1206L075TH 1206L075/13.6 1206L110TH 1206L150TH W 8.20+0.10/-0.30 8.15+0.15/-0.30 8.20+0.10/-0.30 C Ø178+/−1.0 F 3.50+/- 0.05 3.50+/- 0.05 3.50+/- 0.05 D Ø60.2+/−0.5 E 1.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 H 11.0+/- 0.5 1 D 1.55+/- 0.05 1.55+/- 0.05 1.55+/- 0.05 W 9.0+/- 1.5 0 D 1.00+/- 0.10 1.00+/- 0.10 1.00+/- 0.10 1 P 4.00+/- 0.10 4.00+/- 0.10 4.00+/- 0.10 0 P 4.00+/- 0.10 4.00+/- 0.10 4.00+/- 0.10 1 P 2.00+/- 0.05 2.00+/- 0.05 2.00+/- 0.05 2 A 1.95+/- 0.10 1.92+/- 0.10 1.95+/- 0.10 0 B 3.65+/- 0.10 3.65+/- 0.10 3.65+/- 0.10 0 T 0.20+/- 0.10 0.25+/- 0.10 0.25+/- 0.10 K 0.87+/- 0.10 1.30+/- 0.10 1.70+/- 0.10 0 Leader 390 390 390 min. Trailer 160 160 160 min. H D P1 P0 0 P2 E1 D C F W T D 1 W D1 K0 B0 Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/25/19