WFF Datasheet - Welwyn Components Limited

WFF Fast Fusible Metal Film Resistors

Fast Fusible Metal Film Resistors WFF Series Welwyn Components Low power fusing Predictable fusing characteristics Flameproof protection www.DataSheet4U.com Electrical Data WFF1/4 Power rating at 70˚ C Resistance range Limiting element voltage TCR Resistance tolerance Standard values Thermal impedance Ambient temperature range ˚ C/watt ˚C 150 watts ohms volts ppm/˚ C % 0.25 0R1 - 10K 250 WFF1/2 0.5 0R10 - 27K 350 250 5 E24 preferred 120 -55 to 155 100 WFF1 1 0R.

WFF_WelwynComponentsLimited.pdf