Type 0678D Square Ceramic Surface Mount Fast Blow Fuse 0678D Series-3912 Size RoHS 2 Compliant Features - Fast blow - Surface mount high breaking capacity (350V AC/125V DC) - Current rating from 500mA to 5A - 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 - DC-DC converter - Mass storage systems HALOGEN FREE = AEC-Q Compliant Physical Specifications Body : Ceramic Materials Terminations : Silver Plated Caps /Palladium Plated Caps On Fuse : Current Rating, D laser marked on ceramic tube, bel stamped in end caps. Marking On Label : be,0678,Current Ratin,Voltage Ratin,Interrupting Ratin, Appropriate Safety Logo and, (China RoHS compliant). Electrical Characteristics (UL/CSA STD.248-14) Safety Agency Approvals Blow Time Safety Safety Agency Voltage Rating Ampere Range / Volt Testing Current Minimum Maximum Agency Certificate (V) I.R. ability* 100% 4 hrs. N/A 500mA-1A/350V 100A AC 500mA-1A/350V AC 250V 100A DC 200% N/A 60 sec 250V DC E20624 125V 2000A DC > 1A-5A/350V AC > 1A-5A/350V 100A AC 125V DC 125V 2000A DC *I.R.= Interrupting Rating = Short Circuit Rating(Amps) Specifications subject to change without notice belfuse.com/circuit-protection 2 / 4 Type 0678D Temperature Derating Curve Average Time Current Curve Electrical Specifications Agency Volt-drop Power Nominal Cold Melting IT Approvals Part Ampere 100%In Voltage and Dissipation Resistance 10 In Number Rating (Volt) Interrupting Ratings (W) (ohms) (A Sec) Max. Max 0678D0500-XX 500mA 0.66 1.00 0.03 0.5 Y 0678D0630-XX 630mA 0.54 1.30 0.06 0.8 Y 0678D0800-XX 800mA 0.38 1.10 0.08 0.9 Y 0678D1000-XX 1A 0.21 0.70 0.3 0.7 Y 0678D1250-XX 1.25A 0.10 0.20 0.4 0.3 Y See Table of Safety Approvals on Page 1 for Voltage and 0678D1600-XX 1.6A 0.08 0.19 0.5 0.3 Y associated Interrupting Ratings 0678D2000-XX 2A 0.059 0.18 0.9 0.4 Y 0678D2500-XX 2.5A 0.043 0.18 1.6 0.5 Y 0678D3150-XX 3.15A 0.035 0.18 2.6 0.6 Y 0678D4000-XX 4A 0.021 0.18 7.5 0.7 Y 0678D5000-XX 5A 0.016 0.18 9.0 0.9 Y Consult manufacturer for other ratings XX - Packaging code (see ordering information) 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. 0678D Dec2019