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Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 2
Technical content
chip type resettable fuses
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
ordering information
New Part # dimensions and construction Protective CoatingElement L aa W h Inner Electrode Outer Electrode L .177±.008 (4.5±0.2) .126±.008 (3.2±0.2) .020±.008 (0.5±0.2) .016±.008 (0.4±0.2) Wh a Dimensions inches(mm) SF45 (1812) Type For further information on packaging, please refer to Appendix A. EU N: Normal45: 4.5 x 3.2mm T: Sn TE: Embossed plastic tape 45SF Type Style Characteristic Termination Material Hold Current Packaging N TET110 050: 0.50A 075: 0.75A 110: 1.1A 181KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 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 circuit protection
1733 Reader's Spreads pg1-203:document 1/27/09 4:16 PM Page 179
182 KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.2/22/08 circuit protection SF chip type resettable fuses Performance Characteristics Derating Curve Time to Trip Characteristics environmental applicationsPercentage of Rated Current 160 -55 -35 -15 25 45 65 1255 Ambient Temperature (°C) 85 105 140 120 100 R-T CharacteristicsResistance (Ω) 100k 05 01 50 Temperature (°C) 0.1 100 10k 100 Time to Trip (Sec.) .01 .001 0.1 10 1001 Current (A) .0001 075 110 050 100 1000 PMS 300 neg. Black neg. Parameter Requirement Limit Test Method Trip Endurance 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 Without damage under 24 hours of current sending Trip Cycle Life (ON-OFF Test) 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 Without damage after 1000 cycles Cold Resistance -40°C ± 3°C, 1000 hoursWithout Damage Heat Resistance 85°C ± 3°C, 1000 hoursWithout Damage Humidity Resistance 85°C ± 3°C, 85% RH, 1000 hoursWithout Damage Heat-Cold Cycling -40°C ± 3°C (30 minutes), +85°C ± 3°C (30 minutes), 20 cyclesWithout Damage Part Designation Hold Rating Max. Rated Voltage (DCV) applications and ratings Trip Current (A) Initial Resistance R Type (Ω) Resistance after Tripping R1 Max. (Ω) Max. Rated Current (A) SF45N050 0.50A SF45N075 0.75A SF45N110 1.10A 15.0 13.2 6.0 -40°C to +85°C Power Dissipation PD (W) 0.49 0.24 0.15 1.00 1.50 2.20 0.6 Operating Temperature Range 0.85 0.41 0.21