PMK MMCX Series User manual

Instruction Manual
MMCX Probe Series
with Universal BNC Interface
Up to 1 GHz, <4pF
±42Vpk, 60V DC
Preliminary
DE | EN

MMCX Probe Series Instruction Manual
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Copyright © 2023 PMK - All rights reserved.
Manufacturer
PMK Mess- und Kommunikationstechnik GmbH
Königsteiner Str. 98
65812 Bad Soden, Germany
Tel: [phone]
Internet: www.pmk.de
E-Mail: [e-mail]
Warranty
PMK warrants this product for normal use and operation within specifications for a period of one year from date of
shipment and will repair or replace any defective product which was not damaged by negligence, misuse, improper
installation, accident or unauthorized repair or modification by the buyer. This warranty covers defects in materials and
workmanship only and does not cover wear and tear. PMK disclaims any other implied warranties of merchantability
or fitness for a particular purpose. PMK will not be liable for any indirect, special, incidental, or consequential damages
(including damages for loss of profits, loss of business, loss of use or data, interruption of business and the like), even
if PMK has been advised of the possibility of such damages arising from any defect or error in this manual or product.
Declaration of Conformity
PMK declares the conformity of this product with the actual required safety standards in accordance with
the Low Voltage Directive (LVD) 2014/35/EU:
The basis on which conformity is being declared:
EN IEC 61326-1:2021
Electrical equipment for measurement, control and laboratory use –
EMC requirements - Part 1: General requirements
EN IEC 61000-4-2:2008
Electromagnetic compatibility (EMC) –Part 4-2: Testing and measurement
techniques –Electrostatic discharge immunity test
EN IEC 61010-031:2022
Safety requirements for electrical equipment for measurement, control and
laboratory use
–
Part 031: Safety requirements for hand-held probe assemblies for electrical
measurement and test
WEEE/ RoHS Directives
This electronic product is classified within the WEEE/ RoHS category list as monitoring and control
equipment (category 9) and is compliant to the following EC Directives.
WEEE Directive 2012/19/EU Waste Electrical and Electronic Equipment
RoHS Directive 2011/65/EU Restriction of the use of certain Hazardous Substances in Electrical and
Electronic Equipment
Your help and efforts are required to protect and keep clean our environment. Therefore, return this electronic product
at the end of its life either to our Service Department or take care of separate WEEE collection and professional WEEE
treatment yourself. Do not dispose as unsorted municipal waste.

MMCX Probe Series Instruction Manual
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Table of Contents
Manufacturer........................................................................................................................................................ 2
Warranty............................................................................................................................................................... 2
Declaration of Conformity .................................................................................................................................... 2
WEEE/ RoHS Directives......................................................................................................................................... 2
IEC Pollution Degrees............................................................................................................................................ 4
IEC Safety Symbols................................................................................................................................................ 4
Safety and Handling Information.......................................................................................................................... 5
About MMCX Probes ............................................................................................................................................ 6
Factory Calibration ............................................................................................................................................... 6
Specifications........................................................................................................................................................ 7
Electrical Specifications................................................................................................................................... 7
Mechanical Specifications ............................................................................................................................... 7
Environmental Specifications .......................................................................................................................... 8
Dimensions...................................................................................................................................................... 8
Typical Frequency Response ........................................................................................................................... 9
Typical Input Impedance ................................................................................................................................. 9
Cleaning................................................................................................................................................................ 9
MMCX Handling Information.............................................................................................................................. 10
Scope of Delivery ................................................................................................................................................ 10
Ordering Information.......................................................................................................................................... 10

MMCX Probe Series Instruction Manual
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IEC Pollution Degrees
Definitions and Examples:
Overview of measurement categories according to IEC 61010-01
O = No Measurement Category (Other circuits that are not directly connected to mains)
Pollution Degree 1
No POLLUTION or only dry, nonconductive POLLUTION. NOTE: The
POLLUTION has no influence.
Pollution Degree 2
Only- nonconductive POLLUTION. Occasionally, however, a temporary
conductivity caused by condensation must be accepted.
Pollution Degree 3
Conductive POLLUTION occurs or dry, non-conductive POLLUTION
occurs which becomes conductive due to condensation which is to be
expected.
IEC Safety Symbols
The following symbols may appear on the product or in this instruction manual:
Caution, risk of danger. Refer to manual.
Caution, risk of electric shock.
Earth (ground) TERMINAL.

MMCX Probe Series Instruction Manual
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Safety and Handling Information
The overall safety of any measurement setup incorporating this probe is the responsibility of the user.
Prevent personal injury, fire and product damage.
To avoid personal injury and to prevent fire or damage to this product or products con-
nected to it, review and comply with the following safety precautions. Be aware that if you
use this probe assembly in a manner not specified the protection this product provides
may be impaired. Only qualified personnel should use this probe assembly.
Use only grounded instruments.
Do not connect the MMCX ground contact to a potential other than earth ground. Always
make sure the probe and the measurement instrument are grounded properly.
Connect and disconnect properly.
Connect the probe output to the measurement instrument before connecting the probe’s
MMCX plug input to the MMCX socket test point in the circuit under test.
Disconnect the probe’s MMCX input from the de-energized circuit under test before
disconnecting the probe from the measurement instrument.
Observe probe and probe accessory ratings.
Do not apply any electrical potential to the probe input which exceeds the maximum ratings
of the probe, or the accessories connected to it. In case of a combination always the lower
rating / measurement category applies to both probe and accessories connected to it.
Keep away from hazardous live circuits.
Avoid open circuitry. Do not touch connections or components when power is present.
Do not operate with suspected failures.
Refer to qualified service personnel.
Indoor use only.
Do not operate in wet or damp environment. Keep the product dry and clean.
Do not operate the product in an explosive atmosphere.

MMCX Probe Series Instruction Manual
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About MMCX Probes
Over the last years MMCX has developed as the standard connectivity solution for repeatable
measurements with highest signal fidelity.
Where traditional passive probes have long ground leads meaning a high inductance causing a ground
loop, the compact MMCX design overcomes these traditional obstacles.
PMK’s MMCX probe series provides models with a very low capacitive loading of less than 4pF for least
capacitive loading and highest signal fidelity with their direct MMCX input.
Different models are available up to >1GHz bandwidthand ±42V input voltagemaking the MMCX probe
series the modern and ideal solution for testing, debugging, and design validation.
Individual Connectivity Accessories for the Highest Signal Fidelity
The MMCX probes series has a universal BNC output connector andis compatible with any oscilloscope
in the lab. Active models MMCX-A require a 50Ω input impedance, or 1MΩ input impedance and a 50Ω
feed-through termination. Passive models MMCX-P require 1MΩ input impedance.
The active probe models require a power supply, which is not included in the scope of delivery, and has
to be ordered separately. Review the Ordering Information at the end of this document for more details.
Factory Calibration
The active probe models are shipped with calibration certificate. For the passive probe models, the
certificate is optional.
Annual re-calibration of the active probes is recommended. ISO17025 calibration upon delivery or as
re-calibration will be possible on request.

MMCX Probe Series Instruction Manual
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Specifications
Read the Instruction Manual before first use and keep it for future reference. A digital copy of the latest
Instruction Manual revision can be downloaded at www.pmk.de.
Do not exceed the specifications. Allow the probe to warm up for 20 minutes. This probe comes with 1
year warranty. Each specification is determined at +23 °C ambient temperature. This probe series is
not rated for CAT II, III or IV.
Electrical Specifications
Specifications that are not marked with (*) as guaranteed are typical.
Model Number
Attenuation Ratio
(± 2 % at DC)
Bandwidth
(-3dB) 1
Rise time
(10%-90%) 1
Input
Impedance
MMCX-P0725
25:1
> 700 MHz
< 570 ps
14.9 MΩ || < 4 pF
MMCX-P0610
10:1
> 600 MHz
< 630 ps
10 MΩ || < 8 pF
MMCX-A1025
25:1
> 1 GHz
< 425 ps
19.5 MΩ || < 4 pF
Each input accessory is lowering the probe’s bandwidth. Please review the “Ordering Information”
section for the bandwidth limitations of each accessory.
Referring derating over frequency graphs are available in the MMCX Probe Series instruction manual.
Model
Number
Noise 2, 3
(Input referred)
Propagation
Delay
Compensation
Range
Probe
Type
Input Coupling of
the Measuring
Instrument
MMCX-P0725
n/a
< 5 ns
7 pF –20 pF
passive
1 MΩ
MMCX-P0610
n/a
< 5 ns
7 pF –20 pF
passive
1 MΩ
MMCX-A1025
TBD
< 6 ns
n/a
active 4
50 Ω
The following specification is valid for all models:
Maximum Rated Input Voltage ± 42V peak, 30 V rms, ± 60 V DC
Mechanical Specifications
Parameter
Specification
Weight (Probe only)
45g (passive) / TBD (active)
Length
1.2 m
Probe Input
MMCX (Male)
Output Connector
BNC (Male) 5
Notes
1Determined with a Tektronix 6GHz MSO6B series oscilloscope
2Only applicable for active probe models MMCX-A
3RMS noise [mV] at 500MHz bandwidth; noise in [nV/sqrt(Hz)] at 100MHz
4A power supply is required and needs to be ordered separately.
5Depending on model, available with or without read-out

MMCX Probe Series Instruction Manual
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Environmental Specifications
Parameter
Specification
Temperature
Range
Operating
-40 °C to +60 °C
Non-Operating
-40 °C to +71 °C
Maximum
Relative
Humidity
Operating
80 % relative humidity for temperatures up to +31 °C,
decreasing linearly to 40 % at +45 °C, non-condensing
humidity
Non-Operating
95 % relative humidity for temperatures up to +40 °C
Altitude
Operating
up to 2000 m
Non-Operating
up to 15000 m
Dimensions
The dimensional drawing is coming soon.

MMCX Probe Series Instruction Manual
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Typical Frequency Response
The frequency response plot shown here is for the probe series without any accessories. Frequency
responses with specific accessories are available on request.
Typical Frequency Response –MMCX-P0725 - normalized
Typical Input Impedance
The input impedance of the probe decreases as the frequency of theapplied signal increases.
Typical Differential Input Impedance –MMCX-P0725
Cleaning
To clean the exterior of the probe, use a soft cloth moistened with either distillated water or isopropyl
alcohol. Before use allow the probe to dry completely.
qqqq
1
0
-1
-2
-3
-4
1
0.1 1 10 100 1G
Frequency [Hz]
0.1 1 10 100 1G
Frequency [Hz]
qqqq
10M
1M
100k
10k
1k
100

MMCX Probe Series Instruction Manual
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MMCX Handling Information
When using MMCX connectors, insert the probe’s MMCX plug straight into the mating socket until a
“click” sound occurs to indicate a proper connection between the plug and socket.
When removing the probe’s MMCX input from the MMCX socket, make sure the circuit
under test is de-energized.
Then grasp the probe’s MMCX connector and pull straight out, taking care not to wiggling the
connector side-to-side to prevent excessive stresses on the socket and its connection to the DUT.
Scope of Delivery
A power supply and referring connection cable are required for the active probe models only. See
chapter “Ordering Information” to review the selection.
1x MMCX Probe
1x Adaptor FF-SQ-MMCX MMCX to 2x 0.025'' (0.635mm) socket, -40°C to +125°C
1x P25-2 Pico Hook™red, for use with FF-SQ-MMCX5
1x P25-0 Pico Hook™black, for use with FF-SQ-MMCX5
1x Color Coding Rings (four colors)
TBD
1x Instruction Manual
n/a
1x Factory Calibration Certificate (only with active probe models)
n/a
The accessories for this probe series have been safety tested.
Do not use any other accessories or power supplies than what is recommended.
Ordering Information
Step 1: Select Base Probe
MMCX-P0725
Passive probe with MMCX input, 700MHz, 42V peak, 25:1, 1.2m cable
length, calibration certificate not included
MMCX-P0610
Passive probe with MMCX input, 600MHz, 42V peak, 10:1, 1.2m cable
length, calibration certificate not included
MMCX-P0610RO
Passive probe with MMCX input, 600MHz, 42V peak, 10:1, 1.2m cable
length, calibration certificate not included, dividing factor read-out function
MMCX-A1025
Active probe with MMCX input, 1GHz, 42V peak, 25:1, 1.2m cable length,
calibration certificate included, power supply and connection cable required
and need to be ordered separately