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CUSTOM Tungsten Carbide (WC) Micro Probe Tip / Punch Needle [31D-ARL-T0]  $7.20
Please Select Options:
1) D= Shank Diameter:
2) A= Tip Taper Angle:
3) R= Tip Radius:
4) L= Overall Length:
5) T= Tip Type:
Quantity Discounts:  5% at 100, 10% at 250
Reviews Quantity:   (minimum=50)

Probe Needles / Probe Tips for micro-electronic probes and probe cards, or Punch Needles for micro-punches.

Features:

  • Finest quality needles available
  • Special, proprietary machining technique used to grind needles of superior accuracy and consistency
  • Machine grinding creates smooth, straight surfaces (unlike chemical etching which can result in pits and concave/convex surfaces)
  • Flat tip option recommended for punching applications

Standard Specifications:

D= Diameter

   

 A= Tip Angle 

   

R= Tip Radius

   

L= Length

mil / um

 p/n 

deg

 p/n 

mil / um

 p/n 

inch / mm

 p/n 

13.0 / 330

310-

 5

0

0.20 /  5.1

1

0.500 / 12.7

1

15.0 / 381

311-

 8

1

0.25 /  6.4

2

0.625 / 15.9

2

20.0 / 508

312-

10

2

0.50 / 12.7

3

0.750 / 19.1

3

25.0 / 635

313-

15

3

0.75 / 19.1

4

0.875 / 22.2

4

27.5 / 698

314-

18

4

1.00 / 25.4

5

1.000 / 25.4

5

28.0 / 711

315-

20

5

2.50 / 63.5

6

1.250 / 31.8

6

 31.0 / 787 

 316- 

 25 

6

 5.00 / 127. 

7

 1.500 / 38.1 

7

   

30

7

 

 

2.000 / 50.8

9

Non-Standard Specifications:

Semprex can manufacture custom probe needles/tips that have dimensions between the values listed in the chart above (but not outside the minimum and maximum values listed). Please contact us for a quotation. Be sure to specify Material, Shank Diameter, Tip/Taper Angle, Tip Radius, and Overall Length.

Tolerances:

Diameter +/-0.2 mil (5.1 um), Angle +/-1.0 deg, Radius +/-0.1 mil (2.5 um), Length +/-0.031 inch (0.8 mm)

Material Composition & Properties:

Grade 883, which consists of approximately WC=89.5% + Co=10.0% + Others=0.5%

Volume Resistivity= 2.5x10^-8 ohm-cm, Thermal Conductivity= 42 W/mK

Density= 14.45 g/cm^3, Hardness= 91.6 HRa, Transverse Rupture Strength= 441 Kgf/mm^2 (630 kpsi), Compressive Strength= 610 Kgf/mm^2 (870 kpsi)

Other Images for this Product (click to enlarge):

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Manufacturer Info
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Micro Punch / Probe  Needle D=.020 A=30 R=.002 L=0.50
Micro Punch / Probe Needle D=.020 A=30 R=.002 L=0.50
$7.63
$6.49

Micro Punch / Probe  Needle D=.020 A=30 R=.002 L=0.50
Micro Punch / Probe Needle D=.020 A=30 R=.002 L=0.50
$7.63
$3.79

Micro Punch / Probe Needle D=.020 A=11 R=.00025 L=1.25
Micro Punch / Probe Needle D=.020 A=11 R=.00025 L=1.25
$7.68
$6.53

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