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J2102B Common Mode Transformer

KEY FEATURES:

  • Greatly attenuates the effects of low frequency ground loops
  • Supports the 2 Port Shunt Thru impedance measurement required for Power Distribution Networks (PDN’s)
  • Ultra-low noise output - Ultra-high ripple rejection
  • Two output connector versions, BNC and N
  • Maintains 50 Ohm transmission line integrity to at least 6GHz
  • Works with all types of test equipment to eliminate ground loops, such as Network Analyzers, Oscilloscopes and Spectrum Analyzers

What's included:

J2102B Common Mode Transformer - BNC or N Type Connector
User manual
1 Year Warranty

More Information

Solution Page
Press Release
Solution Brochure – Ultra Low PDN Impedance Measurement


Questions? Don't hesitate to Contact Us

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Model Description Price  
J2102B-BNC J2102B Common Mode Transformer – BNC Connectors
$799.00
J2102B-N J2102B Common Mode Transformer – N Connectors
$799.00

The simplest and most effective method for eliminating a ground loop is to add a wideband common mode transformer to the measurement, such as the Picotest J2102B Common Mode Transformer. The transformer for a low impedance PDN measurement must have very wide bandwidth, low loss and tight coupling, otherwise, the results will not be accurate over the measured frequency range. It is also important to maintain the 50 Ohm transmission line impedance through this transformer. The J2102B accomplishes this with ease.

The J2102B paired with the Picotest PDN Cable is the best general solution. The J2113A is a better choice if you need to measure below 3kHz and below a maximum frequency of 500kHz. Due to the limited CMRR, the J2113A is not recommended below 1mOhm. If other cables are used with either solution, there may be significant degradation in measurement accuracy below 1MHz due to poor cable shield resistance and isolation.

New Video on Extended Range 2-Port Shunt Thru Measurement In this video, Steve Sandler shows how to simplify one of the more complicated impedance measurements. The 2-Port shunt thru measurement is powerful and accurate down to very small impedance. Using the Bode 100 you can measure power distribution network impedance and decoupling capacitors with a very wide dynamic range. https://www.picotest.com/blog/extended-range-shunt-thru-measurement-with-steve-sandler/

 

Specifications
Characteristic Rating
Usable Bandwidth 1Hz-6GHz
Insertion Loss TBD
Return Loss TBD
Maximum Voltage 50V
Temperature Range 0-50C
Maximum Altitude 6000 Ft
Absolute Maximum Voltage < 50VAC and 75VDC

*Note: The upper end of the bandwidth is heavily dependent on the interconnect between the Injector and the DUT.

 

Application notes coming soon!

 

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