SUBMINIA TURE FUSES UBMINIATURE N o. 303 / TR TR33 UL 248-14, 125V 125V,, F Specifications T ime-Current Packaging Quick Acting (F) Characteristic 000: Tape/Ammopack (1500 pcs.) 013: Long Leads - Bulk (200 pcs.) 042: Short Leads - Bulk (300 pcs.) Standard UL 248-14 CSA C22.2 No. 248.14 Materials Base/Cap: Black Thermoplastic Base Polyamide PA 6.6, UL 94V0 Brass, nickel-plated Cap Round Pins: Copper alloy, tin plated Approvals UL Listed CSA Certified Features Operating TTemperature emperature -25 ºC to +70 ºC (consider de-rating) Reduced PCB space requirements Direct solderable or plug-in versions Internationally approved Low internal resistance Shocksafe casing Vibration resistant Dimensions (mm) max. 8 Ø6 Climatic Category -25 ºC/+70 ºC/21 days (EN 60068-1,-2-1,-2-2,-78) Stock Conditions +10 ºC to +60 ºC relative humidity ≤ 75 % yearly average, without dew, maximum value for 30 days-95 % Vibration Resistance 24 cycles at 15 min. each (EN 60068-6) 10 - 60 Hz at 0.75 mm amplitude 60 - 2000 Hz at 10 g acceleration Lead Pull Strength 1 +0,1 10 N (EN 60068-2-21) Solderability 260 ºC, ≤ 3 s (Wave) 350 ºC, ≤ 1 s (Soldering Iron) Holes in PCB Long Leads (L=18.8mm) Short Leads (L=4.3mm) Soldering Heat Resistance 260 ºC, 10 s (IEC 60068-2-20) Limits for Pre-arcing Time Marking Rated Current 2.0 x IN 2.0 x IN 50 mA ... 5.00 A < 60 s <5s , Voltage Rating, Current Rating, Approvals Unit Weight 0.40 g (approx.) Permissible continuous operating current is ≤ 70 % at ambient temperature of 23 ºC (73.4 ºF). Rated Amp Voltage Breaking Voltage Drop Power Dissipation Melting Integral 1.0 x IN 10 x IN Current Code Rating Capacity 1.0 x IN max. (mV) max. (mW) max. (A2s) 50mA 63mA 80mA 100mA 125mA 160mA 200mA 250mA 315mA 400mA 500mA 630mA 800mA 1.00A 1.25A 1.60A 2.00A 2.50A 3.15A 4.00A 5.00A 0050 0063 0080 0100 0125 0160 0200 0250 0315 0400 0500 0630 0800 1100 1125 1160 1200 1250 1315 1400 1500 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 125V 50A / 125 V AC 50-60Hz cos ϕ = 1.0 50A / 63 V DC 800 780 730 700 650 600 550 500 450 400 380 160 155 150 145 140 130 125 120 110 105 40 50 60 70 85 100 110 125 145 160 190 100 125 155 185 225 260 315 380 440 525 0.00007 0.00013 0.0002 0.0004 0.0022 0.0029 0.0042 0.0082 0.015 0.025 0.042 0.015 0.025 0.039 0.059 0.11 0.17 0.23 0.45 1.0 1.5 Approvals CSA Ø 0,6 UL L 2,54 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand. Order Information 032906 Qty. OrderNumber Series 303 Amp Code Packaging In our continuing strategy to deliver unparalleled circuit protection solutions, technical expertise and application leadership, we proudly introduce the WICKMANN Group and its products to the Littelfuse portfolio. Specifications are subject to change without notice www.littelfuse.com SUBMINIA TURE FUSES UBMINIATURE 00 0,0 10 TR3 / No. 303 I-t Characteristics ,00 10 (Min-Max Limit) UL 248-14 Test value 0 0 1,0 0 10 10 Time (sec.) 0 1 0.1 1 0.0 01 0.0 1 1.5 2 3 4 5 6 7 8 9 10 15 IFault / I Rated Contact Littelfuse for individual I-t curves 032906 In our continuing strategy to deliver unparalleled circuit protection solutions, technical expertise and application leadership, we proudly introduce the WICKMANN Group and its products to the Littelfuse portfolio. www.littelfuse.com