Precision Resistor Type PLC Spec Sheet R171-1/2 July 97 Technical data resistance range 2,5mOhm - 1Ohm tolerances 1%, 5% temperature coefficient tcr ( R > 20mOhm ) < ±50ppm/K ( 20°C to 60°C ) applicable temperature range -55°C to +125°C load capacity 1W thermal resistance to ambiente Rth < 30K/W dielectric withstanding voltage 50VAC inductance < 15nH stability deviation <0.5% after 2,000h Remarks: - Standard resistance values according to E6 ( Typ PLC E12 ) with the additionel values of 2 and 5 - Minimum quantity of other values on request The two terminal resistor type PLC was developed to serve as an economic alternative to the type C-N for application as current sensor in linearly regulated power units, switching units, and current sources. By an additional thermal contact of the aluminum carrier to a dissipator, e.g., by depressing to a heat sink or casing, the loading capacity can be raised to a manifold. A decisive feature of the resistor is the high transient overload capacity based on its good thermal abductance from resistor material to aluminum substrate. ∆R/R20 [%] P / P Nenn 1 0.2 -40 0.75 -20 20 40 60 80 100 120 T [oC] 0.5 -0.2 0.25 -0.4 0 20 power derating curve 40 60 80 100 120 TU / [oC] Temperature dependence of the electrical resistance of ISA-PLAN Resistors dR/R [%] 2 5 mΩ 10 mΩ 1 20 mΩ 50 mΩ -40 -20 20 -1 40 60 > 200 mΩ 80 100 120 T [oC] -2 dimensions (mm) Change of the R(T)-curve to the TCR of copper terminals for very low ohmic 2-terminal-resistors Spec Sheet R171-2/2 July 97 ordering example: PLC - R010 - 5 type resistance value tolerance PLC 10 mOhm 5% ( Technical modifications reserved ) RHOPOINT COMPONENTS LTD Tel: +44/01883 717988, Fax: +44/01883 712938, Email: [email protected] Website: www.rhopointcomponents.com