440A LITTELFUSE | Alldatasheet

Document overview

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Technical content

Features

Electrical Characteristics for Series

  • Operating Temperature from -55ºC to +150ºC
  • 100% Lead-free, RoHS compliant and Halogen-free
  • Meets Littelfuse’s automotive qualifications*
  • Ultra high I2t values
  • Fast response to faulty current to ensure over- current protection to sensitive electronic component % of Ampere Rating Ampere Rating Opening Time at 25ºC 100% .50A - .75A 1 .75A - 8A 4 hours, Minimum 350% .50A - .75A 1 .75A - 8A 5 secs., Maximum

Applications

(A) Amp Code Max. Voltage Rating (V) Interrupting Rating (AC/DC)1 Nominal Resistance (Ohms)2 Nominal Melting I2t (A2Sec.)3 Nominal Voltage Drop At Rated Current (V)4 Nominal Power Dissipation At Rated Current (W) Agency Approvals 1 .75 1 .75 32 50A @ 32VAC/DC 0.0450 0.3312 0.0777 0.136 x X Electrical Specifications by Item Notes: 1 . AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting Rating tested at rated voltage with time constant < 0.8 msec. 2. Nominal Resistance measured with < 10% rated current. 3. Nominal Melting I²t measured at 1msec. opening time. 4. Nominal Voltage Drop measured at rated current after temperature has stabilized. RoHS Pb

  • Li-ion Battery
  • LED Lighting
  • Automotive Navigation System
  • TFT Display
  • Battery Management System (BMS)
  • Cluster Devices designed to carry rated current for 4 hours minimum. It is recommended that devices be operated continuously at no more than 80% rated current. See “Temperature Derating Curve”for additional derating information. Devices designed to be mounted with marking code facing up. Application testing is strongly recommended. * - Largely based on Littelfuse internal AEC-Q200 test plan. Additional Information Datasheet SamplesResources

© 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/15/17 Surface Mount Fuses Ceramic Fuse > 440A Series Average Time Current Curves Reflow Condition 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) 3°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+0/-5 °C Time within 5°C of actual peak Temperature (tp) 10 – 30 seconds Ramp-down Rate 6°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Soldering Parameters T emperature Rerating Curve 100 120 140 -65 -45 -25 -5 15 35 55 75 95 115 135 155 TEMPERATURE (°C) PERCENT OF RATING Time Temperature TP TL TS(max) TS(min) tP tL tS time to peak temperature (t 25ºC to peak) Ramp-down Ramp-up Preheat Critical Zone TL to TP Example: For continuous operation at 75 degrees celsius, the fuse should be derated as follows: I = (0.80)(0.85)IRAT = (0.68)IRAT Note: 1 . Rerating depicted in this curve is in addition to the standard derating of 20% for continuous operation. Wave Soldering 260°C, 10 seconds max. 0.001 0.01 0.1 100 0.11 10 100 1000 TIME IN SECONDS CURRENT IN AMPERES 0.5A 0.75A 1.75A 2.5A 3.5A

© 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/15/17 Surface Mount Fuses Ceramic Fuse > 440A Series Product Characteristics Materials Body: Advanced Ceramic T erminations: Ag / Ni / Sn (100% Lead-free) Element Cover Coating: Lead-free Glass Moisture Sensitivity Level IPC/JEDEC J-STD-020, Level 1 Solderability IPC/ECA/JEDEC J-STD-002, Condition C Humidity T est MIL -STD-202, Method 103, Conditions D Resistance to Solder Heat MIL -STD-202, Method 210, Condition B Moisture Resistance MIL -STD-202, Method 106 Thermal Shock MIL -STD-202, Method 107 , Condition B Mechanical Shock MIL -STD-202, Method 213, Condition A Vibration MIL -STD-202, Method 201 Vibration, High Frequency MIL -STD-202, Method 204, Condition D Dissolution of Metallization IPC/ECA/JEDEC J-STD-002, Condition D T erminal Strength IEC 60127-4 High Temperature Storage MIL -STD-202, Method 108 with exemptions Thermal Shock T est JESD22 Method JA-104, Test Conditions B and N Biased Humidity MIL -STD-202, Method 103, 85C/85% RH with 10% operating power for 1000 hrs Operational Life MIL -STD-202, Method 108, Test Condition D Resistance to Solvents MIL -STD-202, Method 215 Mechanical Shock MIL -STD-202, Method 213, Test Condition C High Frequency Vibration MIL -STD-202, Method 204 Resistance to Soldering Heat MIL -STD-202, Method 210, Test Condition B Solderability JESD22-B102E Method 1 T erminal Strength for SMD AEC Q200-006 Board Flex AEC Q200-005 Electrical Characterization 3 Temperature Electrical Dimensions 3.200 ± .1778 [.126 ± .007] 1.000 [.039] 1.500 [.059] 1.800 [.071] 3.500 [.138] 1.000 [.039] .835 +/-.015 [.0329 +/-.006] 0.520 ± .200 [.020 ± .008] TERMINATION 1.63 + .10/ -.20 Packaging Part Marking System Packaging Option Packaging Specification Quantity Quantity and Packaging Code 8mm Tape and Reel EIA-481, IEC 60286, Part 3 3000 WRA Part Numbering System 0440 008. W R A SERIES AMP CODE QUANTITY CODE W = 3000 pcs PACKING CODE AEC-Q200 QUALIFIED R = Reel Pack Amp Code Marking Code .500 F .750 G 1 .75 L 002. N 02.5 O 003. P 03.5 R 004. S 005. T 0 0 7. W 008. X