S-Probe, single-ended

Rugged single-ended 20 GHz probe for direct probing

S-Probe Product Picture

S-Probe series of single-ended probes can perform up to 20 GHz are designed for RF, power integrity, and signal integrity testing. Its strong beryllium copper (BeCu) tips is perfect for direct probing of uneven surfaces, such as solder pads and circuit components. This is a big improvement over the fragile microprobes.

S-Probe Specifications

  • Bandwidth:
    20 GHz (0.25/0.4/0.5 mm)
    18 GHz (0.8/1.0 mm)
    16 GHz (1.2/1.4/1.6 mm)
  • Insertion Loss: less than 3 dB
  • Impedance: 50±2 Ohm
  • Connector Type: SMA Female
  • Size: 38 x 20 x 12 mm (1.5 x 0.8 x 0.5 in)
  • Availability: Now


S-Probe Part Information

    • SP-GR-2015025 – 20 GHz, 0.25 mm pitch
    • SP-GR-201504 – 20 GHz, 0.4 mm pitch
    • SP-GR-201505 – 20 GHz, 0.5 mm pitch
    • SP-GR-181508 – 18 GHz, 0.8 mm pitch
    • SP-GR-181510 – 18 GHz, 1.0 mm pitch
    • SP-GR-161512 – 16 GHz, 1.2 mm pitch
    • SP-GR-161514 – 16 GHz, 1.4 mm pitch
    • SP-GR-161516 – 16 GHz, 1.6 mm pitch
Component Size vs. Probe Pitch
Component Size vs. Probe Pitch
S-Probe on TP300 Precision Positioner
S-Probe on TP300 Precision Positioner with PMA01 adapter
S-Probe on TP300 Precision Positioner
“S-Probe on TP250 Precision Positioner


  • High Bandwidth: DC to 20 GHz
  • Low Insertion Loss: < 3 dB @ 20 GHz for probe pitch < 1 mm
  • Ruggedness: Strong enough for direct probing test pads on uneven surfaces
  • Probe-tip Calibration: accurate measurements without the need of soldering semi-rigid RF cables
  • High Repeatability: No moving parts
  • View S-Probe datasheet.


Constant shrinking size of circuit components makes soldering semi-rigid RF cables to test gigahertz circuits impractical. The rugged S-Probe and its calibration substrate (TCS70) allow engineers to perform probe-tip calibration for accurate, repetitive measurements.

The user experience of S-Probe is similar to that of the microprobe. Users can use PacketMicro’s TP250 and TP150 Precision Positioners to hold an S-Probe. TP250 allows an engineer to switch between S-Probe and microprobe (with provided adapters) easily. For customers who already have microprobe positioners, they can order a special adapter PMA01 to hold S-Probe.

2 Probe Measurement of TCS70 Thru

SProbe TipCal


S-Probe Demonstrations

Two S-Probes used in 2XThru testing

Two S-Probes used in 2XThru testing

Two S-Probes used in 2XThru testing

Two S-Probes used in 2XThru testing

About PacketMicro

PacketMicro, based in Silicon Valley, provides a wide range of gigahertz probes, probe positioners, bench-top probe stations, and digital microscopes. In addition, PacketMicro offers wireless modules and engineering services in Bluetooth Smart, ZigBee, and wireless sensor networks. PacketMicro customers include many Fortune 100 companies.

Get in touch

PacketMicro, Inc.
2312 Walsh Avenue, Suite A
Santa Clara, CA 95051

+1 408 675 3900 (Main)

+1 408 580 0059