Description
Produced using two different proprietary manufacturing technologies known as ISA-Plan and ISA-Weld, Isabellenhütte’s current-sense resistors meet stringent criteria with regard to thermoelectric voltage, long-term stability and inductance that allow electronics designers to optimise power use on PCBs more efficiently than otherwise possible. The power resistors are widely used in automotive applications such as battery management in electric, hybrid and conventional vehicles, ABS (anti-lock braking systems), ASR (anti-slip regulation), cruise control, power steering, fuel injection and traction control systems. They are also found in power supplies, as shunts for energy meters and IGBT (insulated-gate bipolar transistor) power modules, and in various industrial, telecommunications and consumer applications.
Two terminal surface mount utilizing ISA-Plan® foil technology. Optimized for lower TCR and Inductance.
Current sensor for power hybrid applications, Control systems for the automotive market, Power modules, Switch mode power supplies
Features
– 3 W permanent power at 95 °C
– Constant current up to 25 A (5 mOhm)
– Small size (2512)
– High pulse power rating
– Excellent long term stability
– Mounting: Reflow- and IR-soldering
– AEC-Q200 qualified
In ISA-Plan devices, highly precise resistor elements are etched onto a homogenous film of one of Isabellenhütte’s resistance alloys — either Manganin or Zeranin — which exhibit a very low temperature coefficient of resistance (TCR). They are electrically insulated, mounted on a metal substrate with good thermal conductivity, and packaged as small SMDs. The resistor material is thermoelectrically well matched to copper, reducing thermoelectric voltage to virtually zero. Heat conduction into the substrate permits excellent pulse power ratings. ISA-Plan resistors are available with resistance values from 1mΩ to 4.7Ω, tolerances of 0.5%, 1% or 5%, power ratings from 0.5W to 7W, and TCR down to 20ppm/°C.
Manufacturer:Electronic Components
Datasheet:Low_Resistance_Precision_and_Power_Resistors.pdf
