Capacitors, Inductors, Resistors

Measure, Analyze, and Optimize Electrical Behavior

Magnetics and passive component testing. Chroma manufactures a complete line of test equipment to measure the electrical behavior and characterization of capacitors, inductors, resistors, and wound components to the most current of specifications. Characterization tests include inductance, capacitance, resistance, impedance, dissipation factor, quality factor, leakage current, and insulation resistance. In addition, Chroma’s equipment can also test switches, connectors, lead wires, conductive, dielectric material, magnetic material, and semiconductor components.

The tests not only analyze the characteristics of components but also help to optimize the entire application process including automated manufacturing assessment, incoming and outgoing material inspection, quality verification, and R&D analysis in order to meet low cost, high efficiency requirements.

Passive Component Test

White Paper: LCR Measurement Primer

What is Impedance? What are the measurements of Impedance? This primer defines and explains the measurement of the impedance parameters known as L (inductance), C (capacitance), and R (resistance). Impedance parameters are characteristic of an AC circuit; this primer describes the impedance measurements that are typically used, including their equations. Also described are the connections to the device under test, and how to use test instruments to precisely measure impedance. In addition, primer describes the testing of individual passive components for inductance, capacitance, and resistance.

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Component Test Solutions

UUT type


Test Solution

Inductive components, resistors, fuses, connectors, cables, winding resistance of motors and transformers
  • DC resistance
  • Contact resistance
Electrolytic capacitor
  • C/D/Z/ESR measurement
  • Leakage current
  • Ripple current test
EMI filter coil
  • Inductance, leakage inductance, balance, phase, turn-ratio, DCR
  • Hipot/Insulation resistance/Impulse winding test
X/Y capacitor
  • C/D measurement
  • Hipot/Insulation resistance
  • Corona discharge detection
SMPS electrical safety test
  • Ground bond test
  • Hipot test
  • Insulation resistance
  • Leakage current
Film capacitor
  • C/D measurement
  • Insulation resistance
Power choke
  • Inductance, DCR
  • Hipot/Insulation resistance
  • Impulse winding test
  • Bias current test
  • Temperature rising test
  • Power loss test
Ceramic capacitor
  • C/D measurement
  • Hipot test
  • Insulation resistance
  • HF corona detection
DC fan
  • Hipot/impulse winding test
  • DCR measurement
  • Inductance, leakage inductance, balance, phase, turn-ratio, DCR
  • Hipot/Insulation resistance/Impulse winding test
  • HF withstanding test
Lead Acid Battery
  • Surge Test
  • Breakdown Voltage
Lithium Ion Battery and Capacitors
  • Partial Discharge
  • Flashover Detection
  • Leakage Current
  • Insulation Resistance

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