CPTC Thermistor PRODUCT DATA Heating Features 1. Self-regulating heating element 2. Contant temperature 3. Circuit simple 4. Suitable for clamp-contacting 5. Stable over a long life Recommended Applications 1. Home appliances (Air conditioner) 2. Automobile Dimensions B PHR Series C A (Unit: mm) THINKING ELECTRONIC INDUSTRIAL Co., LTD. 1 Characteristics PHR Series Nominal Zero-power Resistance Rated Voltage Maximum Voltage V R (V) V max (V) A 1(mm) 300 100/120 140 16 11 2.5 180 100/120 140 16 11 2.5 100 700 220/240 270 16 11 2.5 110 500 220/240 270 23.5 10 2.2 210 230 800 220/240 270 19 12 2.2 PHRA2301 B3A4 230 250 300 100/120 140 23.5 10 2.2 PHRA2701 B4B7 240 255 700 220/240 270 23.5 10 2.2 PHRA4501 B4B7 240 255 500 220/240 270 36 6 2.3 Curie Temperature Surface Temperature Tc ( ) Ts ( ) PHRA1301 P7A4 70 85 PHRA1181 P7A4 70 90 PHRA1701 P8B7 80 PHRA2501 P9B7 90 PHRA3801 B1B7 Part No. Note: R 25 ( ) Dimensions B 1(mm) C 0.2(mm) =Tolerance of R 25 Reliability Test Item Test Condition / Methods Standard Rapid Change of Temperature T A =LCT T B =UCT Number of cycles:5 Duration: 30 min IEC60068-2-14 Test N a Temperature Coefficient of Resistance T =ln(R Tc+25 /R Tc+10 ) 15 R Tc =2Rmin IEC 60738-1 Endurance at Upper Category Temperature Temperature: UCT Duration: 1000 hrs IEC 60738-1 Endurance at Maximum Operating Temperature and Maximum Voltage Voltage: V max Temperature: UCT Duration: 1000 hrs IEC 60738-1 Endurance at Room Temperature (Cycling) Voltage: V max Temperature: 25 5 Number of cycle 10,000 or 100,000 IEC 60738-1 Damp Heat Steady State Temperature: 40 5 Relative humidity of air: 95 98%Rh Duration: 1000 hrs IEC 60068-2-3 Test C a THINKING ELECTRONIC INDUSTRIAL Co., LTD. Issue Date: July, 2004 2