Description
Some boards already carry a pin header right where you need to look. For those boards, the Rohde & Schwarz RT-ZMA12 tip saves a soldering job. On this page, “tip” means a square-pin tip module: the front end that lets an RT-ZM modular probe fit onto square header pins. R&S rates it at over 6 GHz, with a rise time under 75 ps.
Header pins instead of solder joints
The RT-ZM system splits the probe into an amplifier module and a tip module. So you can swap the contact style while the amplifier stays the same. The RT-ZMA12 is the plug-on choice in that tip range. By contrast, the RT-ZMA10 and RT-ZMA11 are solder-in cables with a rating above 16 GHz. The trade is clear: you give up some bandwidth, and in return you can move the tip between boards without a soldering iron.
Rohde & Schwarz RT-ZMA12 tip data
| Item | RT-ZMA12 |
|---|---|
| Type | Square-pin probe tip module |
| System | R&S RT-ZM modular probe |
| Bandwidth | Over 6 GHz |
| Rise time | Under 75 ps |
| Modes listed | P, N, DM, CM |
| Order number | 1419.4324.02 |
Good jobs for a plug-on tip
The Rohde & Schwarz RT-ZMA12 tip, rated above 6 GHz, lines up well with the mid-range amplifiers. For example, R&S also lists the RT-ZM60 amplifier at over 6 GHz, so neither part holds the other back. Embedded teams can then check clocks, reset lines and serial buses on a debug header. Production test engineers can also reuse one tip across many boards of the same design. In addition, teaching labs get a probe front end that students can fit by hand.
R&S lists P, N, DM and CM modes for this tip as well. Because the RT-ZM system offers a MultiMode function, you can switch between single-ended, differential and common-mode views without refitting the contact.
Ordering the RT-ZMA12
Lost in HCM rents the Rohde & Schwarz RT-ZMA12 tip for short debug projects and sells it for permanent lab kits. First, note your RT-ZM amplifier model and the scope it runs on. Then request a quote from Lost in HCM and state how many tips you need. Other parts for the RT-ZM system sit under oscilloscope probes, and you can contact SMK Vietnam about fit. Part data comes from the Rohde & Schwarz modular probe page. Always follow the manufacturer’s manual and ratings.
Questions about the RT-ZMA12
Do I have to solder the RT-ZMA12?
No. It is a square-pin module, so it fits onto header pins. Pick a solder-in tip such as the RT-ZMA10 when you need the 16 GHz class.
Which amplifiers take this tip?
R&S lists the RT-ZM modular probe amplifier modules. Still, confirm your exact amplifier with Lost in HCM before you order.
Why is its rating lower than the solder-in tips?
R&S rates it above 6 GHz, while the solder-in cables go above 16 GHz. In practice, you trade some bandwidth for a contact you can move.
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