Learn about the protection mechanism of MF72 series current limiting thermistors and MOV varistors in fan motors to help upgrade the safety of small household appliance designs.
Product Overview
Fan motors in household appliances like electric fans are prone to overheating and high inrush currents during start-up. These risks can be mitigated with a dual-protection design using MOVs and MF72 series NTC thermistors, ensuring safe, stable operation even in peak summer workloads.
Product Applications
Inrush Current Suppression
MF72 thermistors suppress inrush current during power-on, protecting motor windings from surges.
Thermal Rise Monitoring
NTC thermistors detect abnormal thermal rise during operation and trigger shutdown or frequency reduction.
Lightning & Surge Absorption
MOVs absorb overvoltage spikes such as those caused by lightning or grid fluctuations.
Key Benefits
Dual-layer protection: surge + temperature
High durability, stable performance
Compact size, easy integration on PCB
Recommended Models
|
Model |
Type |
Parameters |
Package |
|
LCRR14D471K |
Varistor |
470V |
DIP |
|
MF72-5D |
Thermistor |
5Ω/25℃ |
Epoxy |
|
MF72-10D |
Thermistor |
10Ω/25℃ |
Epoxy |
|
MF72-14D |
Thermistor |
15Ω/25℃ |
Epoxy |
EN
