Understanding the G4a00 Microtemp Fuse Datasheet and Its Applications
The G4a00 Microtemp Fuse Datasheet is your definitive resource for a specific type of thermal cutoff device. These fuses are not like typical fuses that protect against overcurrent. Instead, their primary function is to act as a one-time safety mechanism triggered by excessive temperature. When a component or system begins to overheat beyond a safe operational limit, the G4a00 fuse will reliably open the circuit, preventing potential damage, fire hazards, or even catastrophic failure. This precise temperature activation is what makes them indispensable for safety-critical applications. These miniature thermal fuses are designed to be integrated directly into electrical circuits, often in close proximity to heat-generating components. Their small size allows for easy incorporation into crowded electronic assemblies. You'll commonly find them used in a wide array of consumer electronics, appliances, and industrial equipment. Consider these common uses:- Motor protection in appliances like hair dryers, blenders, and fans.
- Temperature control in heating elements for coffee makers and toasters.
- Safety cutoffs in power supplies and adapters.
- Overheat prevention in lighting fixtures and electronic ballasts.
- Rated Temperature (T r ) The temperature at which the fuse is designed to open.
- Operating Temperature (T o ) The maximum temperature the fuse can withstand without opening.
- Maximum Temperature (T max ) The absolute highest temperature the fuse can be exposed to without permanent damage.
- Hold Temperature (T h ) The temperature at which the fuse will remain closed.
- Enclosure The physical characteristics and materials of the fuse.
- Current Rating The maximum continuous current the fuse can handle.
| Characteristic | Value |
|---|---|
| Rated Temperature | 130°C |
| Maximum Current | 5A |
| Body Diameter | 4mm |