# Transistor - NPN (2N3904)

**Type:** Product page · **SKU:** COM-00521 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/transistor-npn-2n3904.html ([markdown](https://core-electronics.com.au/transistor-npn-2n3904.html.md))

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

> ⚠ If this product is unavailable, [we have alternatives here](https://core-electronics.com.au/npn-transistor-2n3904.html)

## Pricing

- **Price:** $0.91 (inc GST) — $0.83 AUD, exc GST
- **Quantity discounts:** 5+ $0.80 (exc GST) · 25+ $0.78 (exc GST) · 100+ $0.75 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 25 and Aug 28.

## Description

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

**Datasheet:** [2N3904](https://core-electronics.com.au/attachments/localcontent/2N3904_6227911cead.pdf)

## Guides for this product

- [Potentiometers and the Arduino Uno](https://core-electronics.com.au/guides/arduino/potentiometers-and-the-arduino-uno/)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/t/r/transistor_-_npn__2n3904___com-00521__01.jpg)