NTC Thermistor Transformer Protection

Describing Transformer Protection from Inrush Current Using the NTC Thermistors

Ametherm

This tutorial will provide a problem statement describing the inrush current situation and then provide selection criteria to help chose the correct NTC thermistor for the application.
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Related Parts

ImageManufacturer Part NumberDescriptionAvailable Quantity
ICL 10 OHM 15% 3A 9.5MMSL10 10003ICL 10 OHM 15% 3A 9.5MM21186 - ImmediateView Details
ICL 10 OHM 20% 6A 12MMSL12 10006ICL 10 OHM 20% 6A 12MM10530 - ImmediateView Details
ICL 60 OHM 20% 2A 15MMSL15 60002ICL 60 OHM 20% 2A 15MM12282 - ImmediateView Details
ICL 5 OHM 20% 7A 15MMSL15 5R007ICL 5 OHM 20% 7A 15MM22931 - ImmediateView Details
ICL 1 OHM 20% 20A 22MMSL22 1R020ICL 1 OHM 20% 20A 22MM23486 - ImmediateView Details
ICL 10 OHM 20% 8A 22MMSL22 10008ICL 10 OHM 20% 8A 22MM7412 - ImmediateView Details
ICL 4 OHM 20% 14A 22MMSL22 4R014ICL 4 OHM 20% 14A 22MM2310 - ImmediateView Details
ICL 2.5 OHM 20% 15A 22MMSL22 2R515ICL 2.5 OHM 20% 15A 22MM58572 - ImmediateView Details
ICL 5 OHM 15% 12A 22MMSL22 5R012ICL 5 OHM 15% 12A 22MM10887 - ImmediateView Details
ICL 2 OHM 20% 18A 22MMSL22 2R018ICL 2 OHM 20% 18A 22MM6899 - ImmediateView Details
PTM Published on: 2012-08-30