Part

Number

Tungsten

Probing Wire Shaft Diameter

Point

Radius

Model7 and Model 7A :dc-500MHz,50 ohm

7-5

5

micron

<0.1

micron

7-10

10

micron

<0.1

micron

7-22

22micron

<1.0

micron

7-35

35micron

<2.0micron

7-60

60

micron

<3.0

micron

7-125

125micron

<5.0micron

7-175

175micron

<5.0

micron

Model 12C :dc-500 Mhz,1 Megohm/0.1pF

12C-1-5

5micron

<0.1

micron

12C-1-10

10micron

<0.1

micron

12C-1-22

22micron

<1.0

micron

12C-1-35

35micron

<2.0micron

12C-1-60

60micron

<3.0

micron

12C-1-125

125micron

<5.0micron

12C-2-5

5micron

<0.1

micron

12C-2-10

10micron

<0.1

micron

12C-2-22

22micron

<1.0

micron

12C-2-35

35micron

<2.0micron

12C-2-60

60micron

<3.0

micron

12C-2-125

125micron

<5.0micron12C-4-55micron

<0.1

micron

12C-4-10

10micron

<0.1

micron

12C-4-22

22micron

<1.0

micron

12C-4-35

35micron

<2.0micron

12C-4-60

60micron

<3.0

micron

12C-4-125

125micron<5.0micronModel 34A：dc-3.0GHz,10 Megohm/0.1pF

34A-4-5

5micron

<0.1

micron

34A-4-10

10micron

<0.1

micron

34A-4-22

22micron

<1.0

micron

34A-4-35

35micron

<2.0micron

34A-4-60

60micron

<3.0

micron

34A-4-125

125micron<5.0micronModel 35

：

dc-26GHz

，

1.25Megohm/0.05pF

35-1-5

5micron

<0.1

micron35-1-1010micron

<0.1micron35-1-22

22micron

<1.0

micron

35-1-35

35micron

<2.0micron

Model 18C and Model 19C:DC-350 MHz

Model

18C

Inputcapacitance:0.02pFInput

leakage:10 femtoamps

Rise/fall

time:1.2ns

Frequency

response:dc to 350 MHz

Operating

range:0 to +10V range

Linearity:0.2%

5Vrange /2.0% 10v rangeGainaccuracy:

±