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Components & Parts > Transistors

Transistor - NPN (2N3904)

SKU: COM-00521

$0.68 AUD, inc GST
$0.62 AUD, exc GST

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Transistor - NPN (2N3904)
0.68 AUD

SKU: COM-00521

$0.68 AUD, inc GST
$0.62 AUD, exc GST
3 reviews 0 5 4.4
In stock, ships same business day if ordered before 2PM
Delivered by Tue, 21st of Aug
Shipping Offer


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

These are very common, high quality BJT NPN transistors made by ST Micro.

Datasheet: 2N3904

This product is listed in:

Documentation and Resources:
  • Potentiometers and the Arduino Uno
  • Variable resistors come in all shapes and sizes, and they all do the same basic job. They allow you precisely control voltage/current flow within a circuit. The most common type of variable resistor we see in DIY electronics is the Potentiometer, or ...
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...

Product Comments

Customer Reviews

  1. Review by Stuart - functions perfectly as described verified purchaser

    functions perfectly as described. But if you order multiple of these it takes them days to ship out your order because supposedly that is what's required to grab a dozen out of a box.

    Core Electronics Response: We ran short Stuart, and we also got in touch with you about that (offering a split shipment). (Posted on 29/04/2018)

  2. Review by Goldman verified purchaser

    Just perfect. (Posted on 28/03/2018)

  3. Review by Sam verified purchaser

    Great item for the amateur maker; provides some great functionality to those growing projects. (Posted on 2/08/2017)

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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