PTGL20AS470H0D02BZ POSISTOR Equivalent Inrush Current Limiter 47Ohms ±25% 27A PTC Resettable Fuse Thermistor
Features
1. Protection against overcurrent situations
2. Automatic reset from protective trip mode
3. Space-saving
4. Various characteristics to meet a suitable resistance value.
Specification
| Model | PTC20W470RH280 |
| Zero-power Resistance at 25±2℃ Rn | 47 Ω±25% |
| Curie Temperature Tc | 130℃ |
| Max. Inrush Current(peak) | 27A |
| Max. Voltage Vmax | 280VAC/400VDC |
| Thermal Capacity Cth | 3.0J/K |
| Max. Non-operating Energy at 60℃ ENon60 | 210J |
| Max. Non-operating Energy at 85℃ ENon85 | 135J |
| Operating Temperature | -40~+125C |
| Standard | IEC 60738-1 |
Application Matrix
Color
TV
CRTDisplay
VCR
Audio
Speaker
Refrigerator
Vacuum Cleaner
Air Conditioner
FAX
Personal Computer
USB HUB
PDA
Lighting Equipment
STB
DSL
Exchanger
Transceiver
Security System
Vending Machine
Automobile
Car Audio
Car Navigation
Small DC Motor
Fan Motor
Battery Pack
Power Supply
AC Adaptor
SmallTransformer
Basic Characteristics of POSISTOR
1. Resistance - Temperature Characteristics
Although there is a negligible difference between thenormal and "Curie Point" temperature, POSISTORrshows almost constant resistance-temperaturecharacteristics. Yet they have resistance-temperaturecharacteristics that cause resistance to sharply increasewhen the temperature exceeds the Curie Point.The Curie Point (C.P.) is defined as temperature whichthe resistance value is twice the one at 25 °C.
2. Current - Voltage Characteristics (Static Characteristic)This shows the relation between applied voltage whenvoltage applied to POSISTORr causes balancing ofinner heating and outer thermal dissipation and stabilizedcurrent. This has both a maximum point of current andconstant output power.
3. Current - Time Characteristics (Dynamic Characteristic)This shows the relation between current and time beforeinner heating and outer thermal dissipation arrive atequilibrium state. This features having large initial currentand abruptly continuous attenuating portion.
Photos
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