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  1. OLIVE2222

    How to identify capactiors

    - packaging ==>same or smaller (take care about axial/radial mounting) - series==>manufacturer dependent, just go for a brand recommended by Kris - capictance ==>same - tolerance ==> don't matter that much - ESR ==> looking for low ESR type is better - Lifetime at temp ==> the longer the better...
  2. OLIVE2222

    How to identify capactiors

    Yes indeed, moreover on the Siemens brand capacitor I talk about they are plenty of room to write down everything...
  3. OLIVE2222

    How to identify capactiors

    Yes on Siemens brand for instance
  4. OLIVE2222

    How to identify capactiors

    should be: 2/50 ==>2µF/50V 1/50 T8206A ==>1µF/50V 1/50 T8208A ==>1µF/50V 33/10 T8207A ==>33µF/10V
  5. OLIVE2222

    LM2596 inductor, capacitor, diode

    Not a problem at all!
  6. OLIVE2222

    LM2596 inductor, capacitor, diode

    If you have room enough you can go for a big inductor, the will offer a lower Rdc what is a good think!
  7. OLIVE2222

    LM2596 inductor, capacitor, diode

    Do you already use the TI simulator and create your components as I suggest you in your previous threat here under? https://www.electronicspoint.com/threads/lm2596-inductor-capacitor-diode.268867/#post-1610619 [Moderator's note: I have merged holex's two threads together. holex, please do not...
  8. OLIVE2222

    Help with graphics card capacitor

    Hi, hard to said what the capacitor value was, however you can go for something in the 100nF-1µF range without risk. To be noted that ceramic capacitors are very reliable compared to semiconductors, statically speaking not the best candidate to spot so. Olivier
  9. OLIVE2222

    Help: Arduino + MAX31855 (TC amplifier) + 4051 Multiplexer(s)

    You will find here under an example of thermocouple multiplexing (figure 10) http://www.analog.com/static/imported-files/application_notes/AN-274.pdf The MAX31855 being 5V compatible can directly be connected to the Arduino SPI bus
  10. OLIVE2222

    recognizing a component !

    This package is called mini-melf. They are many often resistor, don' t know if mini-melf inductors do exist. When resistors they are used for they higher dissipation capabilities. Don' t know about diode color code...
  11. OLIVE2222

    Multiplying Voltage by a factor

    You can also use an ADC with a variable or selectable voltage reference, again under software control.
  12. OLIVE2222

    need to identify this capacitor

    @Dave looks to be 14C621 on the first line and 52A on the second + a circled SA sign under there is a logo (unknown to me) with a E and a C stacked. @Paul Not sure if it's a capacitor or not, can you picture the board where it's coming from?
  13. OLIVE2222

    EMI issue with USB connection

    @Arouse1973, knowing that implementation matter in an electronic project is already a nice learning for an engineer.
  14. OLIVE2222

    EMI issue with USB connection

    Frankly I will go for a affordable dev board like this: https://www.olimex.com/Products/PIC/Proto/PIC-USB-4550/
  15. OLIVE2222

    EMI issue with USB connection

    OK regarding the USB connection, problem seems more located on the Power supply side.
  16. OLIVE2222

    EMI issue with USB connection

    The cable shielding is to be connected on the device GND. The connector frame is to be connected to device GND via a ferrite bead or a 1-10nF capacitor, to be experimented
  17. OLIVE2222

    EMI issue with USB connection

    Don't see the USB connection on your picture. If not yet the case unshielded wires must be very short between the PIC pins and the connector, around 1 inch maximum.
  18. OLIVE2222

    EMI issue with USB connection

    Hi Istvan, Please posting sharp picture(s) of your board as your schematic will help us to help you. Olivier
  19. OLIVE2222

    Power mosfets for automotive 12v and 24v use.

    Fet for automotive circuits don't have specific characteristics however automotive grade FET do exist. Here under Mouser filtered results accordingly: http://be.mouser.com/Semiconductors/Discrete-Semiconductors/_/N-awhng?Keyword=automotive+fet&FS=True
  20. OLIVE2222

    Help for breadboarding components

    Here the best of both world: https://www.tindie.com/products/crispytronics/energy-harvester-breakout-20-mv-startup/
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