Step Switch with LED - Three Pack of Red Plastic with Red LED - PB86-A1
Product ID: 5499
Description
These hinged momentary step switches are evocative of the 16-step sequencer keys on
TR-808 sythesizers. Also sometimes used on A/V equipment, they're very tactile with a
good clicky feel. And of course, the built in red LED is great for indicating when
something is on or off - or as visual feedback when clicked.
There's four legs to the switch for mechanical stability. The switch is momentary SPDT
type, there are two pins of the four that act as the common, and they naturally connect
to one or the other of the remaining pins when the button is pressed. Check the
diagram below to see which pins are the pole and which are the two throws. You may
also want to use a multimeter on continuity mode to verify.
Note they are not breadboard or perf-board friendly! You'll need to either hand-wire or
design into a PCB.
The LED is a simple 3mm, 20mA max, 2.1V-forward-voltage, red LED embedded into
the plastic. There is no resistor built in so a 1K or so resistor will be useful to keep the
LED from burning out. Our LED guide will help you on how to pick a resistor - then you
can PWM dim the LED from a microcontroller pin, or connect it to a digital output as
desired.
Technical Details
Button dimensions: 17mm x 12mm x 14mm
Diagram
•
https://www.adafruit.com/product/5499 8-17-22
很抱歉,暂时无法提供与“5499”相匹配的价格&库存,您可以联系我们找货
免费人工找货