FAQ

1

Measurement

Q.
ESR Modeling for TDK Capacitors
  • Multilayer Ceramic Chip Capacitors
Q.
MLCC Measuring Procedure of Impedance and ESR for HP4291
  • Multilayer Ceramic Chip Capacitors
Q.
Measuring Capacitance accurately in an MLCC V2
  • Multilayer Ceramic Chip Capacitors
Q.
What voltage and frequency should I apply to the capacitor when measuring high capacitance ceramic capacitors (MLCCs with dipped radial leads)?
  • MLCC with Dipped Radial Lead
Q.
What is the recommended meter for measuring high capacitance ceramic capacitors?
  • MLCC with Dipped Radial Lead
Q.
What functions should I look for when choosing a meter for measuring capacitance of MLCCs (Multilayer Ceramic Capacitors)?
  • MLCC with Dipped Radial Lead
Q.
When I measured the inductance of another company's product that is supposed to have the same inductance, it showed a different value. Why is that?
Q.
Provide instructions on how to measure impedance of a common mode filter / choke.
  • Signal Line Common Mode Chokes/Filters
Q.
How are NTC thermistors calibrated?
  • Chip NTC Thermistors (Protection Device)
    • /
  • Chip NTC Thermistors (Sensor)
Q.
How is a varistor calibrated?
  • Chip Varistors / Ceramic Transient Voltage Suppressors
Q.
Are there any recommended data loggers when using humidity sensors CHS series?
  • Humidity Sensors
Q.
What is the resolution of the measurement?
  • Ultrasonic Sensor Disks
    • /
  • Ultrasonic ToF (Time-of-Flight) Sensors
Q.
Can the module detect an object closer than 15 cm?
  • Ultrasonic Sensor Disks
    • /
  • Ultrasonic ToF (Time-of-Flight) Sensors
Q.
How does temperature affect the measurement?
  • Ultrasonic Sensor Disks
    • /
  • Ultrasonic ToF (Time-of-Flight) Sensors
Q.
How does the environment influence the measurement (rain, snow, etc)?
  • Ultrasonic Sensor Disks
    • /
  • Ultrasonic ToF (Time-of-Flight) Sensors
Q.
Is triangulation (3D-view) possible? 
  • Ultrasonic Sensor Disks
    • /
  • Ultrasonic ToF (Time-of-Flight) Sensors

Electrical Characteristics

Q.
Ripple current of MLCC (1): What is the allowable ripple current of capacitors?
  • MLCC with Dipped Radial Lead
    • /
  • Multilayer Ceramic Chip Capacitors
Q.
Ripple current of MLCC (2): Why do MLCCs (Multilayer Ceramic Chip Capacitors) generate heat with the ripple current?
  • Multilayer Ceramic Chip Capacitors
Q.
Ripple current of MLCC (3): Is heat generation with the ripple current a phenomenon that is unique to MLCCs (Multilayer Ceramic Chip Capacitors)?
  • Multilayer Ceramic Chip Capacitors
Q.
Ripple current of MLCC (4): How is the allowable ripple current measured?
  • Multilayer Ceramic Chip Capacitors
Q.
Ripple current of MLCC (5): What kinds of risks are involved when currents exceed allowable ripple currents?
  • Multilayer Ceramic Chip Capacitors
Q.
Ripple current of MLCC (6): Does polarity affect the allowable ripple current of MLCCs (Multilayer Ceramic Chip Capacitors)?
  • Multilayer Ceramic Chip Capacitors
Q.
Ripple current of MLCC (7): Does case size affect the allowable ripple current?
  • Multilayer Ceramic Chip Capacitors
Q.
ESR characteristics (1): What is ESR?
  • Multilayer Ceramic Chip Capacitors
Q.
ESR characteristics (2): What are the physical components of ESR?
  • Multilayer Ceramic Chip Capacitors
Q.
ESR characteristics (3): How much difference is there in ESR between different value MLCCs (Multilayer Ceramic Chip Capacitors)?
  • Multilayer Ceramic Chip Capacitors
Q.
ESR characteristics (4): Does frequency affect ESR?
  • Multilayer Ceramic Chip Capacitors
Q.
ESR characteristics (5): What should be taken into consideration when the ESR is a critical parameter in a circuit design?
  • Multilayer Ceramic Chip Capacitors
Q.
ESR characteristics (6): What can I do if the total temperature (external plus internal) exceeds the maximum rated temperature for the MLCC (Multilayer Ceramic Chip Capacitor)?
  • Multilayer Ceramic Chip Capacitors
Q.
Capacitor aging characteristics (1): What is MLCC (Multilayer Ceramic Chip Capacitor) “aging”?
  • Multilayer Ceramic Chip Capacitors