PBV

The four-terminal resistor type PBV derived from type PBH PBV is especially designed for the low impedance range, in order to obtain lowest temperature coefficient values, and in order to guarantee the independence of the resistance value from the soldering quality. The use of the precision resistance material MANGANIN PBV combined with a highly temperature resistant and humidity insusceptible Duroplast cover as well as optimization of layout and lines result in a high longterm stability, low temperature coefficient and low inductance.The shape is compatible with the latest power transistors.The resistor PBV is mounted through a center bore or spring clamp to a heatsink, whereby the large area of the base plate will provide excellent heat transfer. The low thermal resistance between resistor foil and aluminum base plate warrants for a low temperature rise at nominal load in this configuration and permits transient overloading up to one magnitude.The resistor is ideally suited for applications in power electronic and control technique, as most applications at inductive loading will require operation with switched power regulating units.Short connection distances of PBV and small dimensions at high load capacity and low inductance are a prerequisite to obtain high switching frequencies.

There are some technical data about PBV.Resistance range is 0.5 mOhm to 1 Ohm.Tolerances is 0.5 % min, 1 % typ, 5 % max.Temperature coefficient ( R > 10 mOhm ) < 30 ppm/K ( 20 °C to 60 °C ).Applicable temperature range is -55 °C to +125 °C.Load capacity is 3 W / 10 W with heatsink provided.Thermal resistance to aluminum base plate Rth is < 3 K/W. Thermal resistance to ambient Rth is < 15 K/W.Dielectric withstanding voltage is 500 V AC.Inductance ( R = 50 mOhm ) is < 5 nH.Stability ( nominal load at 70 °C ) deviation is < 0.5 % after 2,000 h.

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