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Conductor and resistor materials

Updated October 8, 2011

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Click here to go to our page on conductivity

Click here to go to our main page on resistors

If you need to know more about any specific material in this table, click on the material name. Our reference for this info mainly is the boulder.nist.gov web site. Please be sure to find a second reference on this data (preferably your material vendor) before you base a design on this data!

A variety of metals and alloys are used for conductors and resistors on printed circuit boards and thin-film networks. Thick film conductors are formed from pastes, and will be treated separately by Microwaves101 at a later date.

If you have any data we can add to this table, please send it in!

Material
Formula

Temperature coefficient of resistivity (TCR)

(ppm/°C)

Bulk resistivity

(-cm)

Melting point

°C

Melting point

°F

Aluminum Al 4200 2.65 660 1221
Carbon C -500 3000
Chromium Cr 5900 18 1857 3374.6
Copper Cu 4300 1.673 1083 1981.4
Gold Au 4000 2.44 1064 1947.2
Indium In 5200 15.52 156.7 314
Iridium Ir 5.3 2410 4370
Iron Fe 6500 9.66 1535 2795
Lead Pb 4200 20.65 328 622.4
Magnesium Mg 4.2
Nickel Ni 6800 8.707 1453 2647.4
Nichrome Ni80/Cr20 0 to 50 110
Palladium Pd 4200 10.62 1552 2825.6
Platinum Pt 3000 10.62 1768 3215
Rhodium Rh 4.51 1966 3570.8
Silver Ag 4100 1.59 962 1763.6
Tantalum Ta 15.52 2996 5424.8
Tantalum nitride TaN -100 252
Tin (white) Sn 4600 11.55 232 449.6
Titanium Ti 55 1660 3020
Tungsten W 4800 5.6 3422 6192
Zinc Zn 4200 5.68 420 788
Zirconium Zr   4.1 1852 3365.6

 

 


 
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