Part Number: WMZ75S
Function: PTC overcurrent protection thermistor
Package: Disk Type
Manufacturer: Sinochip
Image:
Description
A Positive Temperature Coefficient (PTC) thermistor is a temperature-sensitive resistor whose resistance increases with temperature. These devices are commonly used for overcurrent protection, resettable fuses, and self-regulating heating applications, thanks to their nonlinear resistance response.
WMZ75S Datasheet Information
Reference Information : WMZ11A
Characteristics
1. WMZ11A series PTC thermistor is pins resin coated parts.
2. High voltage withstanding capacity：420VAC-1000VAC
3. Small dimension
4. Applied for frequently switching
5. Delayed time stability.
6. Complete parts.
7. Switch life can be 100 000 cycles.
Application
1. Energy saving light.
2. Electronic ballast
Note
While Reddit-based discussions note the difficulty in sourcing equivalents, some alternatives like the Vishay PTCLL05P251TTE have been mentioned due to somewhat comparable thermal switch properties—though any substitution should be carefully evaluated per datasheet specifications.
WMZ11A Datasheet
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