Fuse Mounting Accessories Page 123 Fuse & Mounting Accessories

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/03/17 Radial Lead Fuses TR3 > Fast-Acting Fuse > 303 Series Description Agency Approvals Agency Agency File Number Ampere Range E67006 0.050A - 5A 051378 0.050A - 5A Features Electrical Characteristics % of Ampere Rating Opening Time 200 60 Seconds, Maximum Applications Electrical Characteristics Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand. 303 Series, TR3, Fast-Acting Fuse Pb RoHS Amp Code Rated Current Voltage Rating Breaking Capacity Nominal Cold Resistance (Ohms) Voltage Drop 1.0I N max. (mV) Power Dissipation 1.0I N max. (mW) Melting Integral 10I N max. (A 2 s) Approvals 0050 50mA 125V 50A @ 125VAC 50A @ 63VDC 2.9203 800 40 0.00007 X 0063 63mA 125V 2.7400 780 50 0.00013 X 0080 80mA 125V 2.2300 730 60 0.0002 X 0100 100mA 125V 4.3800 700 70 0.0004 X 0125 125mA 125V 3.4605 650 85 0.0022 X 0160 160mA 125V 2.1687 600 100 0.0029 X 0200 200mA 125V 1.3500 550 110 0.0042 X 0250 250mA 125V 1.1500 500 125 0.0082 X 0315 315mA 125V 0.9645 450 145 0.015 X 0400 400mA 125V 0.8050 400 160 0.025 X 0500 500mA 125V 0.5320 380 190 0.042 X 0630 630mA 125V 0.1448 160 100 0.015 X 0800 800mA 125V 0.1023 155 125 0.025 X 1100 1.00A 125V 0.0830 150 155 0.039 X 1125 1.25A 125V 0.0644 145 185 0.059 X 1160 1.60A 125V 0.0520 140 225 0.11 X 1200 2.00A 125V 0.0400 130 260 0.17 X 1250 2.50A 125V 0.0307 125 315 0.23 X 1315 3.15A 125V 0.0262 120 380 0.45 X 1400 4.00A 125V 0.0178 110 440 1.0 X 1500 5.00A 125V 0.0131 105 525 1.5 X Reduced PCB space requirements Direct solderable or plug-in versions Internationally approved Low internal resistance Shock safe casing Vibration resistant RoHS compliant, Lead- Free and Halogen-Free Available from 0.050A to 5A The 303 Series are TR3, fast-acting type, 125V rated fuses designed in accordance to UL 248-14. Battery chargers Consumer electronics Power supplies Industrial controllers Application testing is strongly recommended. Additional Information Datasheet Samples Resources

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