Warning Cookies are used on this site to provide the best user experience. If you continue, we assume that you agree to receive cookies from this site. OK

72BE Beryllium Copper Probe

Our quantity discounts:
Quantity 50+ 250+ 500+
Price $17.10 $16.20 $15.30

Minimum quantity for "72BE Beryllium Copper Probe" is 50.

Ask a Question

The 72BE Series probes are constructed from solid 20 mil disposable beryllium copper wire with a taper electro-chemially etched to the radius.
(Also known as 72BEG with optional gold plating)

Low contact resistance copper material.
Soft material design reduces contact surface damage from tip.

Reduced scrub marks on device pads.
Lower contact resistance probe.
Easily bent or cut to custom shapes.
Solderable surface for custom applications.

All prices are EACH PROBE, NOT PER BOX
Sold in boxes of  10, 20, or 25.

Made to order.

What size probe should I use?

The typical recommendation is to use a probe diameter that is half to two thirds the size of the contact. Remember, APT's probes are sold by the radius, so you must double the number to determine the diameter. It is normally found that a radius larger than 20 microns does not yield lower contact resistance. An example is: The contact pad is 10 microns, using the recommendation, you would then use a probe with a radius of 2.5 - 3.5 microns. (5- 7 micron diameter)

Why are some probes etch and others ground?

There are two common ways to manufacture the probe's taper and radius: 1.Electrochemically etch 2.Mechanically grind Why is one method chosen over another? 1.The base material is the driving reason: a. Tungsten, Tungsten rhenium are typically electrochemically etched b. Paliney® 7, beryllium copper, tungsten carbide, steel are generally mechanically ground materials This is the short answer, for more details on the subject please refer to the link in the Technical Resources Area under Probe Question's.

Dimensions of the 72BE Series solid Beryllium Copper alloy probe with a electro-chemially etched taper and radius:

The BeCu material can accept Gold, Nickel and optional Silver plating.

Straight version:

72T probe - straight


72BE with 45 degree bend:

72P Paniney 7 probe with 45 degree bend


72BE with 60 degree bend:

72BE Beryllium Copper probe with 60 degree bend


Please refer to this section for American Probe & Technologies cross reference to other manufactures model numbers.


Cascade Part Number
Equivalent APT Model Number
4811372BE-G3/500 x 1.25"
5782972BEG-F3/200 x 1.25"


Karl Suss Part Number
Equivalent APT Model Number



 Probing Solutions Part Number
 Equivalent APT Model Number
 72BE-D3/50 x 1.25


Semiprobe Part Number
Equivalent APT Model Number
DC-1100172BE-E3/70 x 1.25
DC-1102472BE-E3/100 x 1.25
DC-1102572BE-E3/125 x 1.25
DC-1102672BE-E3/200 x 1.25
DC-1102872BE-E3/50 x 1.25