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  • 10Hz-10MHz usable bandwidth Low loss design
  • Easily measure varactors, junction capacitance
  • Measure X5R capacitor voltage sensitivity
  • Bias low power transistor amplifiers and diodes for parameter extraction


What's included:

J2130A DC Bias Injector
User manual
1 Year Warranty


When using the network analyzer to measure impedance, such as the capacitance and ESR or a capacitor, or the DCR of an inductor, etc., it is often necessary to provide a voltage bias to the device being tested. This is true of semiconductor junction capacitances, varactors, and some ceramic capacitors (especially X5R). In these cases the impedance is a function of the DC bias on the device. The Picotest DC bias injector (J2130A) is used for this purpose during impedance measurements.

Picotest J2130A DC Bias Injector

  • Characteristic Typical Units Conditions
    Maximum DC Bias 50 VDC  
    Bias Resistance 10k Ohms  
    Maximum Bias Current 5m A At 50V
    Frequency Response 15-40M+ Hz Frequency Sweep 10Hz~500MHz, Power=-10dBm
    Temperature Range 0-50 C  
    Maximum Altitude 6000 Ft  
    Absolute Maximum Input-Output Voltage 50 V Differential
    Absolute Maximum Voltage     < 50VAC and 75VDC
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