D-Probe, differential

Rugged differential 20 and 40 GHz probes (SS-configuration)


D-Probe series is designed for signal integrity testing. Its strong beryllium copper (BeCu) tips are perfect for direct probing of test pads on uneven surfaces, such as solder balls. With only two signal pins, D-Probes can perform accurate measurements without the need of nearby ground pads.

The user experience of D-Probe is similar to that of the microprobe. Precision Positioner TP250 allows an engineer to switch between the D-Probe and microprobe with different adapters easily. For customers who have microprobe positioners, they can order a special PacketMicro Adapter PMA01 to hold D-Probe.

D-Probe Specifications

  • Bandwidth: 20 GHz
  • Insertion Loss: less than 3 dB
  • Impedance: 100±3 Ohm
  • Connector Type: SMA Female
  • Size: 51 x 38 x 12 mm (2 x 1.5 x 0.5 in)
  • Availability: Now

D-Probe Part No. Information

  • DP-SS-201504 – 20 GHz, 0.4 mm pitch
  • DP-SS-201505 – 20 GHz, 0.5 mm pitch
  • DP-SS-201508 – 20 GHz, 0.8 mm pitch
  • DP-SS-201510 – 20 GHz, 1.0 mm pitch
  • DP-SS-201512 – 20 GHz, 1.2 mm pitch
  • DP-SS-401503 – 40 GHz, 0.3 mm pitch
  • DP-SS-401504 – 40 GHz, 0.4 mm pitch
  • DP-SS-351505 – 35 GHz, 0.5 mm pitch
D-Probe on TP250 Precision Positioner
D-Probe on TP300 Precision Positioner with TP300-PA adapter
D-Probe on TP300 Precision Positioner with PMA01 adapter


  • High Bandwidth: DC to 20 GHz
  • Low Insertion Loss: < 3 dB @ 20 GHz
  • Signal-Signal Only: Accurate S-parameter and TDR measurements without the need of nearby ground pads
  • Ruggedness: Strong enough for direct probing of test pads on uneven surfaces
  • High Repeatability: No moving parts
  • View D-Probe datasheet, 20 GHz and 40 GHz.


Clear Signal AITT-SFD

AITT-SFD (Smart Fixture De-Embedding) by Clear Signal Solutions is part of a user-friendly Advanced Interconnect Test Tool (AITT) that allows engineers to simplify test-fixture designs and perform fast, accurate S-parameter measurements. AITT tool is developed by the renowned research team, led by Professor Drewniak and Professor Fan, at Missouri University of Science and Technology.

Please contact PacketMicro for questions on AITT-SFD or if you like to license or start a free trial of AITT-SFD or other AITT tools.

D-Probe Performance

D-Probe Demonstrations

Two D-Probes in S-Parameter measurement

Two D-Probes in S-Parameter measurement

D-Probes TDR Measurement vs GGB, SMA

D-Probes TDR Measurement vs GGB, SMA

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