SF45N050

1733 Reader's Spreads pg1-203:document 1/27/09 4:16 PM Page 179 SF chip type resettable fuses EU features • • • • • • • Quickly breaks extraordinary current Small size SMD type The least rise in resistance after reflow soldering Latched if when extraordinary current continues The least rise in resistance by repeating trips UL143A File No. E250106 c-UL CAN/CAS-C222, No.0 and Technical Information Letter No. CA-3A File No. E250106 approved • Marking: Green body color • Products with lead-free terminations meet EU RoHS and China RoHS requirements dimensions and construction a W L a Type SF45 (1812) L .177±.008 (4.5±0.2) Dimensions inches (mm) W h .126±.008 (3.2±0.2) .016±.008 (0.4±0.2) a .020±.008 (0.5±0.2) h Inner Electrode Outer Electrode Element Protective Coating ordering information New Part # SF Type 45 Style 45: 4.5 x 3.2mm N Characteristic N: Normal 110 Hold Current 050: 0.50A 075: 0.75A 110: 1.1A T Termination Material T: Sn TE Packaging TE: Embossed plastic tape For further information on packaging, please refer to Appendix A. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 1/06/09 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 181 circuit protection 1733 Reader's Spreads pg1-203:document 1/27/09 4:16 PM Page 180 PMS 300 neg. Black neg. SF chip type resettable fuses applications and ratings Part Designation circuit protection Hold Rating 0.50A 0.75A 1.10A Max. Rated Voltage (DCV) 15.0 13.2 6.0 Max. Rated Current (A) 40 Trip Current (A) 1.00 1.50 2.20 Initial Resistance Resistance R after Tripping Type (Ω) R1 Max. (Ω) 0.49 0.24 0.15 0.85 0.41 0.21 Power Dissipation PD (W) 0.6 Operating Temperature Range -40°C to +85°C SF45N050 SF45N075 SF45N110 environmental applications Derating Curve Percentage of Rated Current 160 1000 100 10 Time to Trip (Sec.) 1 140 120 100 80 60 40 20 0 -55 -35 -15 5 25 45 65 85 105 125 Time to Trip Characteristics 050 075 1 Current (A) 110 .1 .01 Ambient Temperature (°C) R-T Characteristics 100k 10k Resistance (Ω) 1k .001 .0001 0.1 10 100 100 10 1 0.1 0 50 Temperature (°C) 100 150 Performance Characteristics Parameter Trip Endurance Requirement Limit Without damage under 24 hours of current sending Test Method Use the device which has been left for 15 minutes or more in 25°C set voltage to be applied to the element at maximum rated voltage. And set current to be applied within the range between trip current and maximum rated current Use the device which has been left for 15 minutes or more in 25°C set voltage and current to be applied to maximum rated voltage and maximum rated current respectively. Apply rated voltage for 5 seconds and 55 seconds off 85°C ± 3°C, 1000 hours -40°C ± 3°C, 1000 hours 85°C ± 3°C, 85% RH, 1000 hours -40°C ± 3°C (30 minutes), +85°C ± 3°C (30 minutes), 20 cycles 2/22/08 Trip Cycle Life (ON-OFF Test) Without damage after 1000 cycles Heat Resistance Cold Resistance Humidity Resistance Heat-Cold Cycling Without Damage Without Damage Without Damage Without Damage Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 182 — KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com