Type 0678H Enhanced-breaking Capability Brick Fuse 0678H Series-3912 Size RoHS 2 Compliant Features - Enhanced Breaking capacity - Surface mount high current fuse - Current rating from 500mA to 40A - Wide operating temperature range from -55 to 125 - Tape & Reel for auto-insert SMD process - Compatible with 260, IR Pb-free solder process - AEC-Q Compliant - RoHS compliant with exemption 7(a) - Halogen Free, (MSL=1) - Meets Bel automotive qualification* * - Largely based on internal AEC-Q test plan Applications - Voltage regulator module - PC server - Office electronic equipment - Industrial equipment - Medical equipment - POE, POE+ - Power supply AEC-Q Compliant - DC-DC converter - Mass storage systems HALOGEN FREE = Physical Specifications Safety Agency Approvals Safety Body : Ceramic Voltage Rating Safety Ampere Range / Volt Agency Materials Agency I.R. ability* (V) Terminations : Silver Plated Caps /Palladium Plated Certificate Caps 500mA-5A /125V 1000A AC On Fuse : 250V 300A AC Current Rating, H- laser marked on ceramic tube, bel stamped in end caps. 125V 2000A DC Marking On Label : >5A-20A /250V 100A AC 125V 500A AC be,0678,Current Ratin,Voltage Ratin,Interrupting 125V 1000A DC Ratin,Appropriate Safety Logo and, 100V 1500A DC (China RoHS compliant). 500mA-40A/250V AC E20624 125V DC >20A-30A /250V 100A AC 125V 200A AC 125V 1000A DC Electrical Characteristics (UL/CSA STD.248-14) >30A-40A /250V 100A AC Blow Time 125V 500A AC Testing Current Minimum Maximum 125V 1000A DC 100V 1500A DC 100% 4 hrs. N/A 200% N/A 60 sec *I.R.= Interrupting Rating = Short Circuit Rating(Amps) Specifications subject to change without notice belfuse.com/circuit-protection 2 / 4 Type 0678H Temperature Derating Curve Average Time Current Curve Electrical Specifications Agency Nominal Cold Nominal Volt- Melting IT Nominal Power Part Ampere Voltage and Approvals Resistance drop 100%In 10 In Dissipation Number Rating Interrupting Ratings (ohms) (Volt) (A Sec) (W) 0678H0500-XX 500mA 0.66 1.00 0.03 0.5 Y 0678H0630-XX 630mA 0.54 1.30 0.06 0.8 Y 0678H0800-XX 800mA 0.38 1.10 0.08 0.9 Y 0678H1000-XX 1A 0.21 0.70 0.3 0.7 Y 0678H1250-XX 1.25A 0.10 0.20 0.4 0.3 Y 0678H1600-XX 1.6A 0.08 0.19 0.5 0.3 Y 0678H2000-XX 2A 0.059 0.18 1.0 0.4 Y 0678H2500-XX 2.5A 0.043 0.18 1.8 0.5 Y 0678H3150-XX 3.15A 0.035 0.18 2.8 0.6 Y See Table of Safety Approvals 0678H4000-XX 4A 0.021 0.18 7.8 0.7 Y on Page 1 for Voltage and associated Interrupting 0678H5000-XX 5A 0.016 0.18 10 0.9 Y Ratings 0678H6300-XX 6.3A 0.013 0.17 20 1.1 Y 0678H8000-XX 8A 0.010 0.15 34 1.2 Y 0678H9100-XX 10A 0.0060 0.13 90 1.3 Y 0678H9150-XX 15A 0.0041 0.12 220 1.8 Y 0678H9200-XX 20A 0.0028 0.09 420 1.8 Y 0678H9250-XX 25A 0.0023 0.08 660 2.0 Y 0678H9300-XX 30A 0.0015 0.08 2000 2.4 Y 0678H9350-XX 35A 0.0016 0.11 735 3.9 Y 0678H9400-XX 40A 0.0015 0.11 1000 4.4 Y Consult manufacturer for other ratings XX - Packaging code (see ordering information) NOTES: All tests were conducted with the fuses soldered to a printed circuit boards with a nominal thickness of 1.6 mm. The copper test circuit trace was a printed circuit with an overall length of 100 mm, copper thickness/width as described below. The printed circuit boards were mounted by screws to a test fixture having brass blocks for connection of the test leads. All samples Fuse rating Test Board Trace Dimensions were soldered to the test boards by the manufacturer. 500mA-5A 1 oz. copper, 5.0mm wide. Caution >5A-30A 3 oz. copper, 10mm wide. - Minimum fusing point: >30A-40A 3 oz. copper, 15mm wide. The 0678H Series fuse are NOT intended to be operated at currents between 100% and 200% of ampere rating. Prolonged operation at currents in this range may result in overheating of the fuse and/or desoldering of the fuse caps from the PCB pad. Specifications subject to change without notice Bel Fuse Inc. +1 201.432.0463 206 Van Vorst Street Bel.US.CS belf.com Jersey City, NJ 07302 USA belfuse.com/circuit-protection 2019 Bel Fuse, Inc. Rev.0678H Dec2019