The PWRB053 Series from Bourns are Wirewound Power Resistors. They have a resistance of 0.05 Ω - 70K Ω and a resistance tolerance of up to 5%. These resistors have a power rating of 10 W. They have low TCR and exhibit outstanding surge capabilities. These resistors are available in surface-mount packages that measure 51.60 x 15.00 x 13.6 mm and are suitable for telecommunications, switching power supplies, motor controls, high-power discharging, and pulse-withstanding applications.