Tungsten Electrodes, Standard Tip
Tungsten is a versatile and widely-used microelectrode material that offers a good balance between performance and cost.
Advantages | Disadvantages |
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These monopolar microelectrodes of MicroProbes are also available in Platinum-Iridium, Elgiloy (an alloy similar to stainless steel), and Pure Iridium metal. The electrodes are insulated with a thin film of vapor-deposited Parylene-C. As an option we provide them surrounded by Polymide tubing. Each electrode is etched to a fine taper and tipped using a proprietary process to a specific impedance value. Four different tip profiles are available, see below.
We offer a variety of different tip alternatives for those that prefer a specialized electrode profile for their research. The tip selection can provide subtle yet important changes to the performance of the electrode. It is recommended that first time users consider experimenting with different tip profiles to determine which works best for their recording or stimulation protocols.
For some applications concentric or bipolar electrodes (stereotrodes) are useful.
Monopolar Electrodes, Tungsten, Standard Tip
(75 µm × 3")
Item |
Length |
Shaft Diameter |
Tip Diameter |
Impedance |
Applications |
Pkg of 10 |
WE3003X.XA3 |
76 mm |
0.081 mm |
2-3 µm |
0.1 MΩ to |
General purpose recording |
|
WE30030.01A3 |
76 mm |
0.081 mm |
0.01 MΩ |
MultiUnit & ERP recording & Stim |
||
WE30030.05A3 |
76 mm |
0.081 mm |
0.05 MΩ |
|||
WE30030.1A3 |
76 mm |
0.081 mm |
0.1 MΩ |
|||
WE30030.5A3 |
76 mm |
0.081 mm |
0.5 MΩ |
Single & multiunit rec. & stim. |
||
WE30031.0A3 |
76 mm |
0.081 mm |
1.0 MΩ |
|||
WE30031.5A3 |
76 mm |
0.081 mm |
1.5 MΩ |
|||
WE30032.0A3 |
76 mm |
0.081 mm |
2.0 MΩ |
|||
WE30032.5A3 |
76 mm |
0.081 mm |
2.5 MΩ |
Greater Selectivity - Small Cells |
||
WE30033.0A3 |
76 mm |
0.081 mm |
3.0 MΩ |
|||
WE30035.0A3 |
76 mm |
0.081 mm |
5.0 MΩ |
Monopolar Electrodes, Tungsten, Standard Tip
(125 µm × 3")
Item |
Length |
Shaft Diameter |
Tip Diameter |
Impedance |
Applications |
Pkg of 10 |
WE3003X.XA5 |
76 mm |
0.127 mm |
2-3 µm |
0.1 MΩ to |
General purpose recording |
|
WE30030.01A5 |
76 mm |
0.127 mm |
0.01 MΩ |
MultiUnit & ERP recording & Stim |
||
WE30030.05A5 |
76 mm |
0.127 mm |
0.05 MΩ |
|||
WE30030.1A5 |
76 mm |
0.127 mm |
0.1 MΩ |
|||
WE30030.5A5 |
76 mm |
0.127 mm |
0.5 MΩ |
Single & multiunit rec. & stim. |
||
WE30031.0A5 |
76 mm |
0.127 mm |
1.0 MΩ |
|||
WE30031.5A5 |
76 mm |
0.127 mm |
1.5 MΩ |
|||
WE30032.0A5 |
76 mm |
0.127 mm |
2.0 MΩ |
|||
WE30032.5A5 |
76 mm |
0.127 mm |
2.5 MΩ |
Greater Selectivity - Small Cells |
||
WE30033.0A5 |
76 mm |
0.127 mm |
3.0 MΩ |
|||
WE30035.0A5 |
76 mm |
0.127 mm |
5.0 MΩ |
Monopolar Electrodes, Tungsten, Standard Tip
(250 µm × 3")
Item |
Length |
Shaft Diameter |
Tip Diameter |
Impedance |
Applications |
Pkg of 10 |
WE3003X.XA10 |
76 mm |
0.256 mm |
2-3 µm |
0.1 MΩ to |
General purpose recording |
|
WE30030.01A10 |
76 mm |
0.256 mm |
0.01 MΩ |
MultiUnit & ERP recording & Stim |
||
WE30030.05A10 |
76 mm |
0.256 mm |
0.05 MΩ |
|||
WE30030.1A10 |
76 mm |
0.256 mm |
0.1 MΩ |
|||
WE30030.5A10 |
76 mm |
0.256 mm |
0.5 MΩ |
Single & multiunit rec. & stim. |
||
WE30031.0A10 |
76 mm |
0.256 mm |
1.0 MΩ |
|||
WE30031.5A10 |
76 mm |
0.256 mm |
1.5 MΩ |
|||
WE30032.0A10 |
76 mm |
0.256 mm |
2.0 MΩ |
|||
WE30032.5A10 |
76 mm |
0.256 mm |
2.5 MΩ |
Greater Selectivity - Small Cells |
||
WE30033.0A10 |
76 mm |
0.256 mm |
3.0 MΩ |
Monopolar Electrodes, Tungsten, Standard Tip
(125 µm × 3")
Item |
Length |
Shaft Diameter |
Tip Diameter |
Impedance |
Applications |
Pkg of 10 |
WE5003X.XA5 |
127 mm |
0.127 mm |
2-3 µm |
0.1 MΩ to |
General purpose recording |
|
WE50030.01A5 |
127 mm |
0.127 mm |
0.01 MΩ |
MultiUnit & ERP recording & Stim |
||
WE50030.05A5 |
127 mm |
0.127 mm |
0.05 MΩ |
|||
WE50030.1A5 |
127 mm |
0.127 mm |
0.1 MΩ |
|||
WE50030.5A5 |
127 mm |
0.127 mm |
0.5 MΩ |
Single & multiunit rec. & stim. |
||
WE50031.0A5 |
127 mm |
0.127 mm |
1.0 MΩ |
|||
WE50031.5A5 |
127 mm |
0.127 mm |
1.5 MΩ |
|||
WE50032.0A5 |
127 mm |
0.127 mm |
2.0 MΩ |
|||
WE50032.5A5 |
127 mm |
0.127 mm |
2.5 MΩ |
Greater Selectivity - Small Cells |
||
WE50033.0A5 |
127 mm |
0.127 mm |
3.0 MΩ |
|||
WE50035.0A5 |
127 mm |
0.127 mm |
5.0 MΩ |
Monopolar Electrodes, Tungsten, Standard Tip
(250 µm × 5")
Item |
Length |
Shaft Diameter |
Tip Diameter |
Impedance |
Applications |
Pkg of 10 |
WE5003X.XA10 |
127 mm |
0.256 mm |
2-3 µm |
0.1 MΩ to |
General purpose recording |
|
WE50030.01A10 |
127 mm |
0.256 mm |
0.01 MΩ |
MultiUnit & ERP recording & Stim |
||
WE50030.05A10 |
127 mm |
0.256 mm |
0.05 MΩ |
|||
WE50030.1A10 |
127 mm |
0.256 mm |
0.1 MΩ |
|||
WE50030.5A10 |
127 mm |
0.256 mm |
0.5 MΩ |
Single & multiunit rec. & stim. |
||
WE50031.0A10 |
127 mm |
0.256 mm |
1.0 MΩ |
|||
WE50031.5A10 |
127 mm |
0.256 mm |
1.5 MΩ |
|||
WE50032.0A10 |
127 mm |
0.256 mm |
2.0 MΩ |
|||
WE50032.5A10 |
127 mm |
0.256 mm |
2.5 MΩ |
Greater Selectivity - Small Cells |
||
WE50033.0A10 |
127 mm |
0.256 mm |
3.0 MΩ |
Common Tip Profiles:
Also see:
Selecting the Optimum Electrode Configuration