MS Series Bare Metal Element Resistors • • • • • • • Resistances from 0.005 to 0.10Ohms Tolerance to ±1% Resistance Wire TCR: ± 20ppm/K For Current Sensing and Shunt Applications All Welded Construction Low Inductance ( <10nH ) Economical Bare Metal Element SPECIFICATIONS Power Rating Watts @ 85°C Resistance Range ( W )1 Tolerances MS-1 1 0.005 to 0.10 ±1% / ±5% MS-3 3 0.005 to 0.10 MS-5 5 0.005 to 0.05 Type Dimensions TCR ( ppm/K ) L D +0.040 / -0.020” [+1.0 / -0.5mm] ±0.002” [±0.05mm] See Chart Consult Riedon 0.032 [0.8] 0.040 [1.0] ±1% / ±5% See Chart Consult Riedon 0.040 [1.0] ±1% / ±5% See Chart Consult Riedon 0.040 [1.0] 1 Temperature Coefficient of Resistance (TCR) Call Factory for Other Resistances Power Derating Curve 120 500 100 Power ( % ) TCR ( ppm/K ) 400 300 200 100 0 80 60 40 20 0 0 0.01 0.03 0.05 0.07 0.09 0.11 0.13 0 Resistance Value ( W ) 50 100 150 200 250 300 350 Ambient Temperature (°C) Ordering Information Part Number - Resistance - Tolerance - TCR ( If not standard ) Example: MS-3 0.05 Ohm 1% Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom. http://www.willow.co.ukrev. 03/2006A + 44 (0) 1342 835234 + 44 (0) 1342 834306 [email protected]