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OVERCURRENT PROTECTION ROADMAP P14 Committee

OVERCURRENT PROTECTION ROADMAP P14 Committee. How did we get to where we are??. DEVICES Fuses PTC. How did we get to where we are??. TRADITIONAL FUSE CONSTRUCTION – Wire in Air. How did we get to where we are??. Axial leaded of existing product ¼ x 1-1/4 inch 5 x 20 mm

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OVERCURRENT PROTECTION ROADMAP P14 Committee

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  1. OVERCURRENT PROTECTION ROADMAP P14 Committee

  2. How did we get to where we are?? DEVICES • Fuses • PTC

  3. How did we get to where we are?? TRADITIONAL FUSE CONSTRUCTION – Wire in Air

  4. How did we get to where we are?? Axial leaded of existing product ¼ x 1-1/4 inch 5 x 20 mm Miniaturization New smaller dimension axial lead Surface Mount

  5. How did we get to where we are?? TYPES OF FUSES • Elements • Thin Film • Thick Film • Multilayer

  6. How did we get to where we are?? PTC • Ceramic • Since the 1960’s • Polymer • Since the 1980’s • Circuits can be built to cut-off current

  7. Overcurrent Protection RoadmapSTATUS • Physical Size Range • 0402 • 13/32 “ • Voltage Range • 24 V • 600 V • Current Range • 2 mA • 60 A

  8. Overcurrent Protection RoadmapISSUES • Alarm indication • Arcing • Venting • Environmental • Lead-free and other substance bans • Higher process temperatures

  9. Overcurrent Protection RoadmapTRENDS/EVOLUTION • Smaller • Less expensive • Higher Energy Density • Higher Precision • 100 +/- 5% • Higher Voltage Ratings • Lower Voltage Ratings • New Ceramics

  10. IPD RoadmapSpace savings CSP 32 Ball/1mm pitch: 71.3% less area than 0805 QSOP 16 pin Isolated: 60% less area than 0805 0603 Chip resistors: 53% less area than 0805 0805 Chip resistors

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