PRG series PTC thermistor resettable fuse from Murata
Murata
Murata has developed the PRG series PTC thermistors for overcurrent protection for use in a variety of applications such as automotive and LED lighting. The innovative use of ceramic materials has resulted in quicker protection after a short circuit and higher reliability. Equipment therefore is safer and requires less maintenance.
100000 FEATURES
• Compact design • Low profile • High reliability • Stable performance during operation
• RoHS compliant • Halogen free
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10
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• UL : E137188 VDE, TUV etc. recognised • Wide range of
1/100 0
operating temperature (-20°C to 85°C)
• Fastest time to trip • Current 10mA to 75mA • Voltage up to 32V
100 FEATURES OF MURATA’S CERAMIC PTC
Multi-layer structure enables high voltage and power capacity.
LEGACY TECHNOLOGY • Lower voltage • Lower hold current (up to 20mA with 30V)
Bulk structure
Ceramic materials allow for quick protection, low maintenance and increased safety.
MURATA TECHNOLOGY • Multi-layer structure • Over 30V max. • Higher hold current (260mA)
200 Temperature/deg.C
If you compare the PRG series to PTC elements and chip resistors that have the same characteristics, the PRG series has higher reliability with less characteristic changes after mounting on the PCB. Additionally the PRG series has a longer life cycle.
Conventional APPLICATIONS
• Automotive • LED lamp/navigation/ motor/electrical component
Multi-layer Technology
• Factory automation equipment: motor drive, sensor controller
• Charger • USB port protection • Mobile phone battery and port protection • Note PC, tablet PC
Internal electrode Multi-layer technology drastically reduces resistance. 100000
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10 Thermistors POSISTOR PRG
0.1 1
1/100
Multi-layer Technology
0 100 200 Temperature/deg.C Figure 1. Comparing traditional technology and the key benefits of the Murata solution. 26
LEGACY TECHNOLOGY • Lower voltage • Lower hold current (up to 20mA with 30V)
For more information visit:
avnet-abacus.eu/murata-automotive
Conventional
MURATA TECHN • Multi-layer stru • Over 30V max. • Higher hold cu
Resistance/ohm
Resistance/ohm
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