04431.25ERE Littelfuse

Surface Mount Fuses 2 NANO > 250V > Slo-Blo Fuse > 443E Series RoHS 443E Series Fuse Description 2 The 443E Series is a Nano , 250 V fuse. It is a surface mount Universal Modular Fuse (UMF) that complies with IEC 60127-4. It is RoHS-compliant and fully compatible with lead-free solder alloy and higher temperature profiles associated with lead-free assembly. Features 250 VAC/VDC voltage Fully compatible with rating with 200 A leadfree solder alloys interrupting rating and higher temperature profiles associated with Slo-Blo Fuse lead-free assembly Agency Approvals RoHS-compliant Agency Agency File Number Ampere Range E242325 1.25A Benefits 40046623 1.25A CQC17012176681 1.25A Avoids nuisance opening Suits high voltage E10480 1.25A due to high inrush and applications requiring high - 1.25A surge current inherent in interrupting current the system Electrical Characteristics Applications AC/DC power adaptor Portable system built-in % of Ampere Rating Ampere Rating Opening Time at 25C AC/DC converter Telecom equipment 100% 1.25 A 4 hours Minimum system power 200% 1.25 A 120 secs Maximum Electrical Specifications by Item Max. 3 Agency Approval Ampere Interrupting Nominal Cold Nominal Nominal Nominal Power Amp Voltage 1 2 Rating Rating Resistance Melting I t Voltage Dissipation at Code Rating 2 2 (A) (AC/DC) (Ohms) (A Sec.) Drop (mV) Rated Current (W) (V) 200A 250VAC/ 1.25 1.25 250 0.100 3.97 165 0.456 x x x x x 200A 250VDC Note: 1. Nominal Cold Resistance measured at less than 10% of rated current at 23 C. 2 2. Nominal Melting I t is measured at 10 the Ampere Rating (I ) n 3. Agency Approval Table key: X = Approved or Certified, P = Pending and Blank = Not Approved 4. Have special electrical characteristic needs Contact Littelfuse to learn more about application specific options 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.11/24/20Surface Mount Fuses 2 NANO > 250V > Slo-Blo Fuse > 443E Series Temperature Re-rating Curve Average Time Current Curves 140 100.000 120 100 10.000 80 60 25C 1.000 40 20 -60C -40C -20C 0C 20C 40C 60C 80C 100C 120C -76F -40F -4F 32F 68F 104F 140F 176F 212F 248F 0.100 Ambient Temperature Note: Re-rating depicted in this curve is in addition to the standard re-rating of 25% for continuous operation. 0.010 0.001 1 10 100 1000 Current Applied (Ampere) Soldering Parameters Reflow Condition Pb free assembly t P - Temperature Min (T ) 150 C T s(min) P Critical Zone Ramp-up T to T L P Pre Heat - Temperature Max (T ) 200 C s(max) T - Time (Min to Max) (t ) 60 180 seconds L s t L T S(max) Average Ramp-up Rate (Liquidus Temp (T ) to peak) 5 C/second max. L T to T - Ramp-up Rate 5 C/second max. S(max) L Ramp-down Preheat - Temperature (T ) (Liquidus) 217 C L T S(min) Reflow - Temperature (t ) 60 150 seconds t L S +0/-5 Peak Temperature (T ) 260 C P 25 Time within 5C of actual peak Temperature (t ) 20 40 seconds p time to peak temperature Time (t 25C to peak) Ramp-down Rate 5 C/second max. Time 25C to peak Temperature (T ) 8 minutes max. P Do not exceed 260 C Wave soldering 260 C Peak Temperature, 3 seconds max. 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.11/24/20 Percent of Rating Time To Open (Seconds) 1.25A Temperature