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Thread: Which transistor to use?

  1. #1
    Junior Member
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    May 2018
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    Which transistor to use?

    Hi there,

    i want to control a LED strip which uses 12V. Each color got it's own power lane, so with PWM i should mix the colors i want.
    However i'm wondering which transistor i should use which i can hook up the the teensy (3.3V out afaik) and can handle the 12V.

    Unfortunalety i have not much electritian knowledge so i'm asking you, if you can recommend any transistor that fits in my case.
    I read a whole bunch of datasheets but due to my limited knowledge i don't really know which transistor can be used.

  2. #2
    Senior Member
    Join Date
    Feb 2017
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    I've used this MOSFET from Adafruit successfully:
    https://www.adafruit.com/product/355

    They also have a tutorial:
    https://learn.adafruit.com/rgb-led-strips?view=all

  3. #3
    Senior Member
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    Montreal, Canada
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    you can also get the RFP30N06LE from adafruit, dont forget to get 10K ohm resistors for your mosfets

  4. #4
    Senior Member PaulStoffregen's Avatar
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    Nov 2012
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    If you're controlling many of these 12V LED strips, these inexpensive boards usually end up costing less than you can even buy the bare transistors.

    https://www.amazon.com/CHINLY-channe.../dp/B01MG9KYCD

    https://www.ebay.com/itm/30Channel-3...V/291695075649

    https://www.aliexpress.com/item/30-c...333091413.html

    The good news is you can very easily transmit DMX from Teensy 3.x using the serial ports. Serial1 & Serial2 are best because they have the FIFOs, for fewer interrupts.

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