BIPOLAR - Tungsten

Tungsten is a versatile and widely-used microelectrode material that offers a good balance between performance and cost.

Advantages

  • Extremely strong and stiff metal provides probes with exceptional rigidity.
  • Great for acute and chronic recording due to biocompatibility and lower cost.
  • High corrosion resistance offers consistent long-term performance.

Disadvantages

  • Does not provide the same degree of electrochemical performance or stability as platinum-iridium alloy, making it a poor alternative for microstimulation.
  • Lower charge transfer capacity of tungsten will result in larger, potentially unsafe interfacial potentials when applying the same stimulation current as to a platinum-iridium electrode.
  • Certain pH or stimulation conditions can lead to tungsten corrosion.
Tungsten Tip Profile

A - STANDARD TIP PROFILE

Our standard tip profile features a sharp yet robust point that offers versatile performance and an effective balance between penetration and durability.

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Blunted Tip Profile

B - BLUNTED TIP PROFILE

Our blunted electrodes are engineered to have a more rounded, bullet-shaped tip. For many applications the blunted tip can offer superior stimulation performance.

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Heat Treated Tapered Tip Profile

H - HEAT TREATED TAPERED TIP PROFILE

Our heat-treated electrodes are intended for those investigators who must penetrate their probes through tough membranes, such as the dura mater of larger mammals.

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Extra Fine Tip Profile

F - EXTRA FINE TIP PROFILE

Our extra-fine tip profile features a significantly sharper taper as well as a thinner insulation layer.

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StandardBluntedTaperedExtra Fine
Stereotrodes - Tungsten - Standard Tip
(75 µm X 3 ")
ITEM Length Outside Diameter Tip Separation Tip Profile Impedance (MΩ) Applications Price - 10/Pkg Buy
WE3ST30.1A3 3 " 0.216 mm 75 µm Standard Tip 0.1 meg MultiUnit & ERP recording & Stim. $547.00
WE3ST30.5A3 3 " 0.216 mm 75 µm Standard Tip 0.5 meg Single & multiunit rec. & stim. $547.00
WE3ST31.0A3 3 " 0.216 mm 75 µm Standard Tip 1.0 meg Single & multiunit rec. & stim. $547.00
WE3ST31.5A3 3 " 0.216 mm 75 µm Standard Tip 1.5 meg Single & multiunit rec. & stim. $547.00
WE3ST32.0A3 3 " 0.216 mm 75 µm Standard Tip 2.0 meg Greater Selectivity & Micro. Stim. $547.00
WE3ST32.5A3 3 " 0.216 mm 75 µm Standard Tip 2.5 meg Greater Selectivity - Small Cells $547.00
WE3ST33.0A3 3 " 0.216 mm 75 µm Standard Tip 3.0 meg Greater Selectivity - Small Cells $547.00
Stereotrodes - Tungsten - Standard Tip
(125 µm X 3 ")
ITEM Length Outside Diameter Tip Separation Tip Profile Impedance (MΩ) Applications Price - 10/Pkg Buy
WE3ST30.1A5 3 " 0.356 mm 125 µm Standard Tip 0.1 meg MultiUnit & ERP recording & Stim. $547.00
WE3ST30.5A5 3 " 0.356 mm 125 µm Standard Tip 0.5 meg Single & multiunit rec. & stim. $547.00
WE3ST31.0A5 3 " 0.356 mm 125 µm Standard Tip 1.0 meg Single & multiunit rec. & stim. $547.00
WE3ST31.5A5 3 " 0.356 mm 125 µm Standard Tip 1.5 meg Single & multiunit rec. & stim. $547.00
WE3ST32.0A5 3 " 0.356 mm 125 µm Standard Tip 2.0 meg Greater Selectivity & Micro. Stim. $547.00
Stereotrodes - Tungsten - Standard Tip
(125 µm X 5 ")
ITEM Length Outside Diameter Tip Separation Tip Profile Impedance (MΩ) Applications Price - 10/Pkg Buy
WE5ST30.1A5 5 " 0.356 mm 125 µm Standard Tip 0.1 meg MultiUnit & ERP recording & Stim. $623.00
WE5ST30.5A5 5 " 0.356 mm 125 µm Standard Tip 0.5 meg Single & multiunit rec. & stim. $623.00
WE5ST31.0A5 5 " 0.356 mm 125 µm Standard Tip 1.0 meg Single & multiunit rec. & stim. $623.00
WE5ST31.5A5 5 " 0.356 mm 125 µm Standard Tip 1.5 meg Single & multiunit rec. & stim. $623.00
WE5ST32.0A5 5 " 0.356 mm 125 µm Standard Tip 2.0 meg Greater Selectivity & Micro. Stim. $623.00
Stereotrodes - Tungsten - Standard Tip
(250 µm X 3 ")
ITEM Length Outside Diameter Tip Separation Tip Profile Impedance (MΩ) Applications Price - 10/Pkg Buy
WE3ST30.1A10 3 " 0.610 mm 250 µm Standard Tip 0.1 meg MultiUnit & ERP recording & Stim. $526.00
WE3ST30.5A10 3 " 0.610 mm 250 µm Standard Tip 0.5 meg Single & multiunit rec. & stim. $526.00
WE3ST31.0A10 3 " 0.610 mm 250 µm Standard Tip 1.0 meg Single & multiunit rec. & stim. $526.00
WE3ST31.5A10 3 " 0.610 mm 250 µm Standard Tip 1.5 meg Single & multiunit rec. & stim. $526.00
WE3ST32.0A10 3 " 0.610 mm 250 µm Standard Tip 2.0 meg Greater Selectivity & Micro. Stim. $526.00
Stereotrodes - Tungsten - Standard Tip
(250 µm X 5 ")
ITEM Length Outside Diameter Tip Separation Tip Profile Impedance (MΩ) Applications Price - 10/Pkg Buy
WE5ST30.1A10 5 " 0.610 mm 250 µm Standard Tip 0.1 meg MultiUnit & ERP recording & Stim. $601.00
WE5ST30.5A10 5 " 0.610 mm 250 µm Standard Tip 0.5 meg Single & multiunit rec. & stim. $601.00
WE5ST31.0A10 5 " 0.610 mm 250 µm Standard Tip 1.0 meg Single & multiunit rec. & stim. $601.00
WE5ST31.5A10 5 " 0.610 mm 250 µm Standard Tip 1.5 meg Single & multiunit rec. & stim. $601.00
WE5ST32.0A10 5 " 0.610 mm 250 µm Standard Tip 2.0 meg Greater Selectivity & Micro. Stim. $601.00