# Phototransistor

**Type:** Product page · **SKU:** CE09800 · **Brand:** [Core Electronics](https://core-electronics.com.au/brands/core-electronics-australia)
**Page:** https://core-electronics.com.au/phototransistor.html ([markdown](https://core-electronics.com.au/phototransistor.html.md))

Phototransistors are semiconductors that change properties based on ambient visible light intensity. Perfect for inexpensive daylight sensors, and light-based triggers.

## Pricing

- **Price:** $1.30 (inc GST) — $1.18 AUD, exc GST
- **Quantity discounts:** 6+ $1.13 (exc GST) · 20+ $1.07 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 1 today; more stock is typically available with a 8–12 day lead time.

## Description

Our phototransistor is a light-sensitive semiconductor device that is used to detect light. It changes electrical properties allowing a measurable level of current to pass through only when the ambient lighting conditions are valid.

### Dimensions

![phototransistor dimensions](https://core-electronics.com.au/media/wysiwyg/3du33-dimensions.png)

### Pinout

![phototransistor pinout](https://core-electronics.com.au/media/catalog/product/3/d/3du33-pinout_1.png)

### Specifications

 | (Light) Trigger Current | 0.3 μA |
|---|---|
| (Dark) Passthrough Current | 0.5 to 1 mA |
| Max Working Voltage | 10 V (DC) |
| Reverse Breakdown Voltage | 15 V (DC) |
| Type | Though-Hole NPN Triode Phototransistor |

### Shipping List

- 1 x 3DU33 Phototransistor

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/c/e/ce9800-phototransistor.jpg)