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104M06QC100 - 

RC Network, Quencharc Q Series, 0.1 µF, ± 20%, 100 ohm, ± 10%, 500 mW

CORNELL DUBILIER 104M06QC100

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Manufacturer Part No:
104M06QC100
Newark Part No.:
72K6759
Product Range
Quencharc Q Series
Technical Datasheet:
(EN)
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Product Information

:
Quencharc Q Series
:
0.1µF
:
± 20%
:
100ohm
:
± 10%
:
500mW
:
250V
:
600V
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Product Overview

The 104M06QC100 is a 0.1µF radial metalized Polyester Film Capacitor for transient suppression.
  • Noise and arc suppression
  • Relay contact protection
  • Noise reduction on controllers and drives
  • EMI/RFI reduction
  • dv/dt Suppression
  • Type QRL, UL/CSA version
  • Coated with flame-retardant epoxy
  • 1.6 x DC rated voltage at +25°C

Applications

Industrial

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2 years, 6 months ago
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Answers

A: 
In choosing a Quencharc suppressor, first of all, check the maximum switching current rating of the contacts to be protected. This value differs for different types of contact materials and different types of relays. The maximum current during the contact closure with an RC network is Eo/Rc, where Eo is the source voltage and Rc is the resistance value of the network. The quantity Eo/Rc must be lower than the maximum switching current for obvious reasons. Next, the selection of capacitance is best done with an oscilloscope.
Connect the oscilloscope probe to the relay wiper and ground the other plate of the contact. Without an RC network across the contacts, check the amplitude of the transient voltage on contact break and the amplitude of the current on contact make. If the voltage is less than 300V and the current less than the maximum switching current rating of the relay, and if you don’t see any arcing, you may not need the contact protection at all. If you spot arcing, connect a .1 mF + 100 ohm, 250 VAC, Quencharc across the contacts, and observe the levels of suppression, voltage on break and current on make. The suppressed voltage should be below 250V, which provides 70 volts of safety margin from the breakdown potential of air. If the voltage is still above 250V, try a .25 mF + 220 ohms or a .5 mF + 330 ohms range. If you need a higher capacitance than 1.0 mF, you may be better off with a Zener or a varistor in terms of cost and space. For most relays and triacs .1 mF + 100 ohms provides a satisfactory suppression.
2 years, 6 months ago
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