Passive Component Testing

Besides testing capacitors, inductors and resistors individually, the passive component test devices are also able to measure assorted electronic components composed of them. Individual components include wound components and communication and power filters; Composites include switches, connectors, lead wires, conductive, dielectric material, magnetic material and semiconductor components. The tests not only analyze the characteristics of these components but also optimize the entire application process including the inspection of auto manufacturing and incoming/outgoing material, quality verification and RD analysis in order to meet the low cost/high efficiency requirements.

Passive component wide-ranging application field in power electronic products :

  • Switch mode power supply(SMPS) : adapter, charger
  • LED power driver circuit
  • Photovoltaic(PV) : PV module, PV inverter
  • Electric vehicle(EV) : BEV, HEV, PHEV

Passive component test solution :

  • Electrical characteristic measurement :
    Inductance, capacitance, resistance, impedance, dissipation factor, quality factor, leakage current, insulation resistance.
  • Reliability(load life) test :
    Bias current test, power loss & core loss test, ripple current test, high frequency withstanding voltage test, high frequency withstanding current test, temperature rising test.
Component Automatic Test System

Passive Component Tests

UUT type Test solution
Electrolytic capacitor
  • C/D/Z/ESR measurement
  • Leakage current
  • Ripple current test
EMI filter coil
  • Inductance, leakage inductance, balance, phase, turn-ratio, DCR
  • Hi-pot/IR/impulse winding test
X/Y capacitor
  • C/D measurement
  • Hi-pot/IR
  • Corona discharge detection
SMPS electrical safety test
  • Ground bond test
  • Hi-pot test
  • Insulation resistance
  • Leakage current
Film capacitor
  • C/D measurement
  • Insulation resistance
Power choke
  • Inductance, DCR
  • Hi-pot/IR
  • Impulse winding test
  • Bias current test
  • Temperature rising test
  • Power loss test
Ceramic capacitor
  • C/D measurement
  • Hi-pot test
  • Insulation resistance
  • HF corona detection
DC fan
  • Hi-pot/impulse winding test
  • DCR measurement
Transformer
  • Inductance, leakage inductance, balance, phase, turn-ratio, DCR
  • Hi-pot/IR/impulse winding test
  • HF withstanding test

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