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Surface Mounted Thermistors
PTCR Series
Welwyn Components
• TCR’s up to +3500 ppm • Custom designs available • Solder terminations have a nickel barrier layer • Resistance range 10 ohms to 800 ohms • Tolerances down to 2% • Available in 0805 and 1206 sizes
Electrical Data
Commercial Power rating at 70°C Resistance range Limiting element voltage TCR -55°C to 155°C Resistance tolerance at 20°C Ambient temperature range Values Thermal impedance watts ohms volts ppm/°C % °C ohms °C/watt 360 2, 5, 10 -55 to 155 E24 & E96 preferred 200 Any value to order For 10 devices mounted on a 50 x 25mm p.c.b. area PTCR 0805 0.1 10R to 400R 100 PTCR 1206 0.