Data Book of Electrical Contacts

From Electrical Contacts
Revision as of 15:15, 26 September 2014 by Teitscheid (talk | contribs) (test edit)

Jump to: navigation, search

Welcome to our Wiki of electrical contacts

The basis of this Wiki is the 2012 issue of the "DODUCO Data Book of Electrical Contacts" which is also available in printed form.
To get your desired information, please use:

For further questions or help, please contact us directly under Contact DODUCO


Featured Article

Contact Physics – Formulas

Contact Physics – Formulas

  • Constriction resistance
R_e = \rho/2a

(Single spot contact according to Holm; circular touching spot between clean

contact surfaces)

R_e = \rho/2Na

(Multi-spot contact according to Holm without influence between the N

individual spots)

R_e = \rho/2 x \sum a_i + 3 \pi \rho /32N^2 x \sum \sum (s_ij) i \neq j

(Multi-spot contact according to Greenwood considering the influence between

the spots)

  • Contact resistanc...

Featured Files

Softening of Ag SnO2 92 8 PX after annealing.jpg
Softening of Ag/SnO2 92/8 PX after annealing for 1 hr after 40% cold working

by Doduco Redaktion


Hardness of precipitation hardened CuCr 0.6.jpg
Hardness of precipitation hardened CuCr 0.6 as a function of annealing conditions
Pages: Precipitation Hardening Copper Alloys,
Aushärtbare Kupfer-Legierungen

by Doduco Redaktion