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NTC 5D-9 Thermistor?

Discussion in 'Electronic Repair' started by Bob Shuman, Dec 16, 2005.

  1. Bob Shuman

    Bob Shuman Guest

    Have you traced the circuit and know for certain they are in the line and
    neutral sides of the primary? Could they be in series or parallel in the
    same line side feed? What are the values of the two components? Obviously
    from the photo one is much larger so I would assume will be for higher
    current/power, but possibly the thermal constants could be different and the
    combination in parallel may give a better in rush current curve or possibly
    protect against the problem I saw with the single under-designed device. I
    guess I am just wondering if the second part wasn't a "fix" to a known
    design problem

  2. Bob Shuman

    Bob Shuman Guest


    Per your request to post a follow up, the CL40 part arrived via UPS today
    and although about 4X the physical size, installed without any problem and
    the unit is working once again. Thanks again for the advice. Let's hope
    that doubling the current capacity will prevent a reoccurrence.

  3. Congratulations on a good repair, and you are very welcome.

    Enjoy the holiday weekend.
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