Fuse Datasheet 463 Series NANO2 Fuse PS RoHS E Description The 463 series NANO is a fast-acting, very high current fuse designed for high operating current applications. It offers superior thermal cycling endurance of 500 cycles with its low temperature rise and excellent temperature stability characteristics. It is ideal to be used in datacom and telecom equipment such as high end servers, base stations, power supplies, and blade computing applications. The 463 series offers high-amp circuit protection, ultra-high interrupting ratings (up to 500A 72VDC) and small size (10.1 mm x 3.12 mm x 3.12 mm) and surface-mount form-factor to help space saving. Features & Benefits Surface mount fuse in a small Operating temperat ure range Additional Information footprint from -55C to 125C High current rating 15A-30A R oHS Compliant and Halogen-Free Higher v oltage rating up to 100VDC and 250VAC Recognized to UL/CSA/NMX 248-1 and UL/CSA/NMX High melting i2t 248-14 Enhanced thermal cycling Conforms to EN/IEC 60127-1 endurance Resources Accessories Samples and EN/IEC 60127-7 Agency Approvals Applications Agency Agency File/Certificate Number Ampere Range High end ser vers / Blade A dvance Telecommunication E10480 15A - 30A computing Computing Architecture PS E NBK101105-E184655 15A (ATCA) applications for cloud Base station power supply computing J50478975 15A - 30A V oltage regulator module B attery Management System NA 15A - 30A Cooling f an system for PC (Industrial Tools) Server Electrical Characteristics for Series % of Ampere Rating Opening Time 100% 4 Hours, Min. 200% 60 Second, Max. Electrical Characteristic Specifications by Item Max Agency Approvals Ampere Ampere Interrupting Nominal Cold Nominal Melting Voltage 4 2 2 Rating (A) Code Rating Resistance (Ohms) I t (A sec) Rating (V) PS E 100A 250VAC 15 015. 250 0.0047 142 x x x x 300A 65VAC 20 020. 250 500A 72VDC 0.0027 433 x - x x 50A 100VDC 25 025. 250 0.00215 668 x - x x 1000A 32VDC 800A 57VDC 1400A 48VDC 30 030. 250 0.00193 916 x - x x 2500A 12VDC Notes: 1. Cold resistance measured at less than 10% of rated current at 23C. 2. Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved. 3. I2t values stated for 10 msec opening time. 4. Interrupting Rating may differ based on Agency Approval. See Agency Approval certificate for more details. 2021 Littelfuse, Inc. 1 Specifications are subject to change without notice. Revised: GD. 08/24/21Fuse Datasheet 463 Series NANO2 Fuse Temperature Rerating Curve Average Time Current Curves 1000 100 10 1 0.1 0.01 1 10 100 1000 CURRENT IN AMPERES Soldering Parameters Reflow Condition Pb-free assembly - Temperature Min (T ) 150C s(min) Pre Heat - Temperature Max (T ) 200C t s(max) P Critical Zone T P - Time (Min to Max) (t ) T to T 60 180 seconds L P s Ramp-up Average Ramp-up Rate 5C/second max. (Liquidus Temp (T ) to peak) T L L TS t max L T to T - Ramp-up Rate 5C/second max. S(max) L - Temperature (T ) (Liquidus) 217C L Reflow TS min - Temperature (t ) 60 150 seconds L +0/5 Ramp-down t Peak Temperature (T ) 260 C S P Preheat Time within 5C of actual peak 20 40 seconds Temperature (t ) p 25 Ramp-down Rate 5C/second max. t 25C to Peak Time 25C to peak Temperature (T ) Time 8 minutes max. P Do not exceed 260C 2021 Littelfuse, Inc. 2 Specifications are subject to change without notice. Revised: GD. 08/24/21 TIME IN SECONDS 15A 20A 25A 30A Temperature