Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!ux1.cso.uiuc.edu!aries!forbes From: forbes@aries.scs.uiuc.edu (Jeff Forbes) Newsgroups: sci.electronics Subject: Re: Resistor types Message-ID: <1990Jan15.042813.15689@ux1.cso.uiuc.edu> Date: 15 Jan 90 04:28:13 GMT References: <231715@<1990Jan12> <21000055@m.cs.uiuc.edu> Sender: news@ux1.cso.uiuc.edu (News) Reply-To: forbes@aries.scs.uiuc.edu (Jeff Forbes) Organization: School of Chemical Sciences, Univ. of Illinois at Urbana-Champaign Lines: 14 In article <21000055@m.cs.uiuc.edu> kenny@m.cs.uiuc.edu writes: > >Film type resistors generally have the resistive material deposited >on an insulating rod, and then cut in a helical pattern using either >screw machinery or a laser. These, and wirewounds, both are quite >inductive. If low inductance is essential, composition types are >preferable. Non-inductive film resistors are available. I believe that a zig-zag pattern is prepared on a plastic film then attached to a body for support and heat sink. I believe that they are only available in larger power sizes, which is where wire wound is mostly used. Jeff