FAQ

Questions frequently posed and their answers.

1. What type of Wirewound Resistor is the best choice for pulse applications?

   In general, best pulse-load performance is provided by wirewound-technology.
   Datasheets to find out the best choice is ready for downloading:
   Pulseload Data Wirewound Resistors
   Pulseload Data BW series
   Pulseload Data BWF series

2. Where to get datasheets for pulse-load capability of film resistors?

   Datasheets to find out the best choice is ready for downloading:
   Pulseload Data Film Resistors
   Pulseload Data PO series
   Pulseload Data ZC series

3. Where to get more detailed data for fusing characteristic of BWF series?

   Please find the datasheet: BWF 236 fusing characteristic
   Please find the datasheet: BWF 237 fusing characteristic

4. Where can we get information of the temperature coefficient (TC) of wirewound resistors?

   The temperature coefficient of wirewound resistors depends on the resistive material, used to prepare the device.
   A datasheet is available for the standard types: Temperature coefficient of the resistive wire for wirewound resistors for KC, KH, KV, KT, KF series.
   Another datasheet is available for KP series: Temperature coefficient of the resistive wire for wirewound resistors.

5. What type of resistors is the best choice for current sensing applications?

   VITROHM offers a number of different types for current sensing applications.
   Please look for: Types KN Serie, LPS series, SLR series, RWN series
   Design notes for Current-Sense-resistors are available:
   Current-Sense-Resistors (engl.)
   
   Available styles are prescribed with the following file: VITROHM CatalogueLPS (attn.: file is about 5 M

6. We need a power resistor with a very low TC?

   Power resistors with a low TC typically are wirewound resistors.
   If a low TC is mandatory for your application, you need a all welded construction.
   More information you will find in our datasheet: Series CR

7. Where can we get a VITROHM Catalogue?

   Here! Here you can download the new VITROHM Catalogue.
   In case you want to get a paperprinted VITROHM-Catalogue please use the Feedback-function.