Surface Mount Fuses Thin Film > 1206 Size > Slo-Blo® Fuse > 468 Series 468 Series 1206 Slo-Blo® Fuse RoHS Pb Description The 468 Series Slo-Blo® Surface Mount Fuse (SMF) is a small (1206 size) thin-film device designed for secondary protection of circuits used in space constrained applications such as hand-held portable electronic devices. This series is 100% lead-free and meets the requirements of the RoHS directive. New Halogen-Free 468 Series fuses are available–to order use the “HF” suffix. See Part Numbering section for additional information. Agency Approvals Features • Complies with • Package is visually AGENCY AGENCY FILE NUMBER AMPERE RANGE electronic industry distinct from fast- E10480 0.5A - 3A environmental standards acting version for easy for lead reduction. identification. 29862 0.5A - 3A • Product is compatible • Top side marking allows with lead-free solders visual verification of and higher temperature amperage rating. Electrical Characteristics for Series profiles. • RoHS, lead-free and • Time delay feature halogen-free compliant. % of Ampere Opening Time at 25OC withstands high inrush Rating currents and prevents 100% 4 hours, Minimum nuisance openings. 200% 1 sec., Min.; 120 sec., Max. 300% 0.05 sec., Min.; 1.5 sec., Max Applications 800% 0.0015 sec., Min.; .05 sec., Max. Secondary protection for space constrained applications: Additional Information • Cell phones • DVD players • Battery packs • Hard disk drives. • Digital cameras Datasheet Resources Samples Electrical Specifications by Item Max Nom Nom Agency Ampere Nominal Cold Nominal Amp Voltage Interrupting Voltage Power Approvals Rating Resistance Melting Code Rating Rating Drop Dissipation (A) (Ohms) I2t (A2sec) (V) (mV) (W) 0.50 .500 63 0.27000 0.0310 156.77 0.0784 x x 1.00 001. 63 50A @63 VAC/VDC 0.0790 0.1270 94.70 0.0947 x x 1.50 01.5 63 0.0440 0.2880 82.32 0.1235 x x 2.00 002. 63 35A @63 VAC 0.0325 0.5060 77.27 0.1545 x x 2.50 02.5 63 50A @63 VDC 0.0240 1.0110 73.92 0.1848 x x 3.00 003. 32 50A @32 VAC/VDC 0.01950 1.2700 72.95 0.2189 x x 1. Measured at 10% of rated current, 25˚C. 2. Measured at rated voltage. © 2018 Littelfuse, Inc. Specifications are subject to change without notice.. Application testing is strongly recommended. Revised: 12/13/18

Surface Mount Fuses Thin Film > 1206 Size > Slo-Blo® Fuse > 468 Series Temperature Re-rating Curve Average Time Current Curves 100 .5A 1A 1.5A 2A2.5A3A 10 1 s d n o c e S n me i Ti 0.1 Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.01 Example: For continuous operation at 70 degrees celsius, the fuse should be deratedas follows: I = (0.75)(0.80)I = (0.60)I RAT RAT 2. The temperature derating curve represents the nominal conditions. For questions 0.001 about temperature derating curve, please consult Littelfuse technical support 0 1 10 100 for assistance. Current in Amperes Soldering Parameters Reflow Condition Pb – Free assembly tP T P Critical Zone - Temperature Min (T ) 150°C Ramp-up TL to TP s(min) T Pre Heat - Temperature Max (T ) 200°C L t - Time (Min to Max) (ts()max) 60 – 180 secs eruTS(max) L s ta r Ramp-down Average ramp up rate (Liquidus Temp e 5°C/second max p Preheat T(TL) to tpoe Tak - Ramp-up Rate 5°C/second max meTTS(min) tS S(max) L - Temperature (T) (Liquidus) 217°C Reflow L 25 - Temperature (t) 60 – 150 seconds time to peak temperature Time L (t 25ºC to peak) Peak Temperature (T ) 260+0/- 5 °C P Time within 5°C of actual peak 20 – 40 seconds Temperature (t ) p Ramp-down Rate 5°C/second max Time 25°C to peak Temperature (T ) 8 minutes Max. P Do not exceed 260°C Wave Soldering 260°C, 10 seconds max. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/13/18

Surface Mount Fuses Thin Film > 1206 Size > Slo-Blo® Fuse > 468 Series Product Characteristics Body: Epoxy Substrate Withstands 10-55 Hz per MIL-STD-202, Terminations: 100% Tin over Nickel over Vibration Method 201 and Materials 10-2000 Hz at 20 g’s per MIL-STD-202, Copper Method 204, Condition D Element Cover Coat: Conformal Coating Insulation Resistance Operating –55OC to 90OC. Consult temperature (After Opening) Greater than 10,000 ohms. re-rating curve chart. For operation above Temperature 90°C please contact Littelfuse Resistance to MIL-STD-202, Method 210, Soldering Heat Condition D Thermal Shock Withstands 5 cycles of – 50OC to 125OC Humidity MIL-STD-202, Method 103, Condition D Dimensions Part Marking System MARKING CODE VARIES Amp Marking WITH AMPERAGE RATING (SEE CHART) Code Code 0.66±0.127 .500 TF (0.026"±0.005") 001. TH 1.27±0.127 (0.050"±0.005") 01.5 TK 0.635±0.127 Coating (0.025"±0.005") 002. TN 02.5 TO 003. TP 1.52±0.127 (0.060"±0.005") Part Numbering System 3.18±0.127 (0.125"±0.005") 0468002.NRHF 1.65 (.065") SERIES 1.52 4.83 (.060") (.190") (.31.5801") (.10.6502") ATMheP dCoot dise poisitioned before the Pack- 1.14 (.045") aging Suffix with whole ratings and within the numbering sequence for (.20.8003") (.20.8003") fractional ratings. Refer to Amp Code Example: WAVE SOLDER INFARED SOLDER column in the Electrical Specifications 1.5 amp product is table. 046801.5NRHF (2 amp PACKAGING Code product shown above). NR = Tape and Reel, 5000 pcs ‘HF’ SUFFIX HALOGEN FREE ITEM Packaging Quantity & Packaging Option Packaging Specification Quantity Packaging Code Tape & Reel – 8mm tape EIA-481 Rev. D (IEC 60286, part 3) 5000 NR Disclaimer Notice - Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. 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. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/13/18