Surface Mount Fuses Thin Film > 1206 Size > Very Fast-Acting > 466 Series 466 Series 1206 Fast-Acting Fuse RoHS Pb Description The 466 Series Fast-Acting 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 466 Series fuses are available to order using the “HF” suffix. See Part Numbering section for additional information. Features Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 .125A - 5A 29862 .125A - 5A Electrical Characteristics for Series % of Ampere Rating Opening Time at 25 C 100% 4 hours, Minimum 200% 5 sec., Maximum 300% 0.2 sec., Maximum • Product is compatible with lead-free solders and higher temperature profiles • Element-covering material is resistant to industry standard cleaning operations • Product is marked on top surface with code to allow amperage rating identification without testing • Alloy-based element construction provides superior inrush withstand characteristics (I2t) over ceramic or glass-based 1206 chip fuse products • Low profile for height sensitive applications O • Flat top surface for pickand-place operations • Lead-free, Halogen-free and RoHS compliant Applications Additional Information Datasheet Resources Secondary protection for space constrained applications: Samples • Cell phones • DVD players • Battery packs • Hard disk drives • Digital cameras Electrical Specifications by Item Ampere Rating (A) 0.125 0.200 0.250 0.375 0.500 0.750 1.00 1.25 1.50 1.75 2.00 2.50 3.00 4.00 5.00 Amp Code .125 .200 .250 .375 .500 .750 001. 1.25 01.5 1.75 002. 02.5 003. 004. 005. Max Nominal Cold Interrupting Voltage Rating Resistance Rating (V) (Ohms) 125 3.925 125 1.100 50A @125 V AC/ DC 125 0.691 125 0.351 63 0.248 63 0.106 63 0.075 50A @63 V AC/DC 63 0.057 63 0.046 63 0.038 63 0.030 32 0.023 32 0.019 50A @32 V AC/DC 32 0.014 32 0.011 1. Measured at 10% of rated current, 25ºC. 2.Measured at rated voltage. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 05/18/15 Nominal Melting I2t (A2sec) 0.00064 0.00055 0.0022 0.0045 0.0060 0.0276 0.0423 0.0640 0.1103 0.1835 0.2326 0.3516 0.5760 1.764 2.500 Nom Nom Power Agency Approvals Voltage Drop Dissipation (mV) (W) 634.37 0.0793 x x 254.28 0.0509 x x 207.01 0.0518 x x 169.18 0.0634 x x 158.47 0.0792 x x 98.65 0.0740 x x 79.97 0.0800 x x 85.71 0.1071 x x 82.97 0.1244 x x 80.73 0.1413 x x 78.73 0.1575 x x 76.99 0.1925 x x 75.99 0.2280 x x 74.50 0.2980 x x 73.75 0.3688 x x Surface Mount Fuses Thin Film > 1206 Size > Very Fast-Acting > 466 Series 2A 2 1/2A 3A 4A 5A 1 1/4A 1 1/2A 1 3/4A 1A 3/4A 1/2A 3/8A 1/4A Average Time Current Curves 1/8A Temperature Re-rating Curve 100 TIME IN SECONDS 10 1 0.1 Note: 1. Re-rating depicted in this curve is in addition to the standard re-rating of 25% for continuous operation. 0.01 Example: For continuous operation at 70 degrees celsius, the fuse should be rerated as follows: I = (0.75)(0.80)IRAT = (0.60)IRAT 2.The temperature derating curve represents the nominal conditions. For questions about temperature derating curve, please consult Littelfuse technical support for assistance. 0.001 0.1 1 10 100 CURRENT IN AMPERES Soldering Parameters Pb – free assembly Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 180 seconds Average Ramp-up Rate (Liquidus Temp (TL) to peak) 5°C/second max. TS(max) to TL - Ramp-up Rate 5°C/second max. Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds Peak Temperature (TP) 260 Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds +0/-5 °C Ramp-down Rate 5°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Wave Soldering tP TP Critical Zone TL to TP Ramp-up TL TS(max) Temperature Reflow Condition tL Ramp-down TS(min) 25 Preheat tS time to peak temperature (t 25ºC to peak) Time 260°C, 10 seconds max. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/18/15 Surface Mount Fuses Thin Film > 1206 Size > Very Fast-Acting > 466 Series Dimensions Product Characteristics Body: Advanced High Temperature Substrate Terminations: 100% Tin over Nickel over Copper Element Cover Coat: Conformal Coating Materials Operating Temperature – 55OC to 90OC. Consult temperature re-rating curve chart. Thermal Shock Withstands 5 cycles of –55 C to 125 C Humidity MIL-STD-202, Method 103, Condition D Vibration MIL-STD-202, Method 201 Insulation Resistance (After Opening) Greater than 10,000 ohms Resistance to Soldering Heat MIL-STD-202, Method 210, O Marking Code .125 B .200 C .250 D .375 E .500 F .750 G 001. H 1.25 J 01.5 K 1.75 L 002. N 02.5 O 003. P 004. S 005. T 0.660 ± 0.127 (0.026" ± 0.005") Sn 0.584 ± 0.076 (0.023" ± 0.003") O 0.559 ± 0.127 (0.022" ± 0.005") 3.175 ± 0.127 (0.125" ± 0.005") Cu Coating Sn Sn 1.524 ± 0.127 (0.060" ± 0.005") Condition D 3.175 ± 0.127 (0.125" ± 0.005") 1.65 (.065") Part Marking System Amp Code MARKING CODE VARIES WITH AMPERAGE RATING (SEE CHART) 1.52 (.060") 4.83 (.190") 1.52 (.060") 3.81 (.150") 1.14 (.045") 2.03 (.080") 2.03 (.080") WAVE SOLDER REFLOW SOLDER Part Numbering System 0466002.NRHF SERIES AMP Code Refer to Amp Code column in the Electrical Specifications table. The dot is poisitioned before the Packaging Suffix with whole ratings and within the numbering sequence for fractional ratings. N = 5000 pcs PACKAGING Code R = Tape and Reel ‘HF’ SUFFIX HALOGEN FREE ITEM Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code 8mm Tape and Reel EIA-481 Rev. D (IEC 60286, part 3) 5000 NR © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/18/15 .125 amp product is 0466.125NRHF (2 amp product shown above).