Products 145-168 of 2414
Show
Crystal 4MHz
Sale!
Price: $1.65
View
Availability: Back Order
Item #: COM-00539 -

"Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated at 20pF capacitance and +/- 50ppm stability. Low profile HC49/US Package."

Crystal 32kHz
Sale!
Price: $2.61
View
Availability: Back Order
Item #: COM-00540 -

"Standard ‘Watch’ or Real-Time-Clock crystal. 32.768kHz means it is precisely half of a 16-bit counter. Start counting at 0x8000 (or 32768). When the counter rolls over from 65535 to 0, then you know that exactly one second has passed. Reset the interrupt, reset the counter, and start counting again! Rated at 12.5pF load capacitance, 35K ohm max (18K ohm typical) series resistance, and +/- 20ppm stability. Small cylinder package."

Ceramic Resonator 8MHz
Sale!
Price: $1.65
View
Availability: Back Order
Item #: COM-00542 -

"Resonators function like crystals but stick closer to their specified frequency over a full temperature range. These resonators are +/-0.5% or better from -20C-+80C. These resonators have built-in load capacitors so no external caps are needed. Datasheets: 20MHz, 10/8/4MHz"

RS232 Converter SMD - MAX3232
Sale!
Price: $3.39
View
Availability: Back Order
Item #: COM-00589 -

"The ‘must have’ IC for 3V projects. This is the RS232 converter IC that is capable of running at 3V and communicating with 3V logic. Comes in an easy to solder 16-Pin SOIC SMD package. Requires four external 0.1uF ceramic capacitors - no more 10uF monsters! Operates from 2.7V to 6V. Documents: Datasheet (3232EB) "

Voltage Regulator - Adjustable LM1117 SMD
Sale!
Price: $2.61
View
Availability: Back Order
Item #: COM-00595 -

"This is a 1A Adjustable SOT-223 voltage regulator capable of outputting 1.2V to 18V. The LM1117 uses the same pin-out and setup as the popular LM317 adjustable regulator, contained in a handy surface mount package. Requires two external resistors to function. Documents: FAN1117A.pdf SFE Eagle Library has this part! Check out our Unregulated Power Supply Tutorial " ...

Surface Mount DPDT Switch
Sale!
Price: $2.61
View
Availability: Back Order
Item #: COM-00597 -

"Surface mount DPDT switch for those tight portable designs. Capable of switching up to 1.2VA (360mA at 3.3V and 240mA at 5V). Documents: Datasheet "

Crystal 14.7456MHz
Sale!
Price: $1.65
View
Availability: Back Order
Item #: COM-00669 -

"Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated at 20pF capacitance and +/- 50ppm stability. Low profile HC49/US Package."

LED Matrix - Dual Color - Small
Hot!
Price: $8.61
View
Availability: Stocked
Item #: COM-00681 -

"LED Matrix with dual-color LEDs. This small matrix has both bright-red and bright-green LEDs built into one common cathode housing. Unit comes with a black finish and a opaque LED lenses. The picture does not quite do the matrix justice. The Red and Green LEDs are quite clear, and turning both on creates a nice yellow color. Dimensions: 0.275x1.25x1.25" Documents: Datasheet " ...

2.4GHz Transceiver IC - nRF24L01+
Price: $6.09
View
Availability: Back Order
Item #: COM-00690 -

"Nordic Semiconductor nRF24L01+. Transceiver chip operating in the 2.4GHz band. Take all the coolness of the nRF2401A and add some extra pipelines, buffers, and an auto-retransmit feature - very nice! The improved ‘+’ version of the nRF24L01 includes more features and better range! Features: Drop in compatible with nRF24L01 1.9V-3.6V supply 2Mbit data rate New long range 250kbit option Auto acknowledge Auto re-transmit Multiceiver - 6 data pipes 32 byte separate TX and RX FIFOs 5V...

Super Capacitor - 10F/2.5V
Sale!
Price: $8.61
View
Availability: Back Order
Item #: COM-00746 -

"Yes you read that correctly - 10Farad capacitor. This small cap can be charged up and then slowly dissipated running an entire system for hours. Combine two in series for 5F/5V. Do not over voltage or reverse polarize these capacitors. Dimensions: 13mm x 33.5mm Documents: Datasheet "

Button Pad 4x4 - LED Compatible
Sale!
Price: $7.56
View
Availability: Back Order
Item #: COM-07835 -

"This is a translucent silicon rubber button pad with 16 buttons originally inspired by the folks at monome.org. Each button has a hole underneath that accepts either a 3mm or 5mm standard LED. The idea is that you can create a button interface of your choice with the ability to display simple colors under each button. Mainly, we wanted to use our tri-color LEDs to create a full RGB color for each button. 16 button pad can be split up into four, 4 button pads. Each button has a conductive...

Button Pad 2x2 - LED Compatible
Sale!
Price: $3.39
View
Availability: Back Order
Item #: COM-07836 -

"This is a translucent silicon rubber button pad with 4 buttons orignally inspired by the folks at monome.org. Each button has a hole underneath that accepts either a 3mm or 5mm standard LED. The idea is that you can create a button interface of your choice with the ability to display simple colors under each button. Mainly, we wanted to use our tri-color LEDs to create a full RGB color for each button. Each button has a conductive circle backing so that a switch can be created with exposed...

Triple Output LED RGB - SMD
Sale!
Price: $3.91
View
Availability: Back Order
Item #: COM-07844 -

"This is the very popular RGB combo but in SMD form. These units have four pads with a common anode configuration. Use this one LED for three status indicators or pulse width modulate all three and get mixed colors! Simple breakout board available below. Iv (Typical): Red: 81mcd Green: 130mcd Blue: 54mcd Vf (Typical): Red: 2.0V Green: 3.5V Blue: 3.5V Wavelength (λD - nm): Red: 615nm Green: 530nm Blue: 470nm Documents: Datasheet LED Tutorial " ...

Mini Speaker - PC Mount 12mm 2.048kHz
Price: $3.39
View
Availability: Stocked
Item #: COM-07950 -

"This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces. This is not a true piezoelectric speaker but behaves similarly. Instead of a piezoelectric crystal that vibrates with an electric current, this tiny speaker uses an electromagnet to drive a thin metal sheet. That means you need to use some form of alternating current to get sound. The good news is that this speaker is tuned to respond best with...

Button Pad 4x4 - Breakout PCB
Price: $17.30
View
Availability: Stocked
Item #: COM-08033 -

"This a simple breakout board for the button pads. Each LED and button is brought out to the side connectors. The connectors are soldered to the back side of the PCB. We recommend trimming the connector leads on the button side as short as possible to reduce the deflection of the pad. Now with footprints for diodes! Use the super cheap 1N4148 through hole diodes. These can be used to isolate the switches to make for a bit easier decoding. Documents: Schematic Eagle Files Hookup Guide Datasheet...

DIP Switch - 8 Position
Sale!
Price: $2.61
View
Availability: Back Order
Item #: COM-08034 -

"DIP switch with 8 individual switch positions. The pins have .1" spacing - fits great into a breadboard! Works great as general control switches. Documents: Datasheet "

Ambient Light Sensor - TEMT6000
Sale!
Price: $2.61
View
Availability: Back Order
Item #: COM-08348 -

"This is a small ambient light sensor that acts as an NPN transistor. The more the sensor is exposed to light, the stronger the base bias. Simple to use! Simple breakout board available below. Documents: Datasheet "

Resettable Fuse PTC
Sale!
Price: $2.17
View
Availability: Back Order
Item #: COM-08357 -

"This is a handy little device that can save your system from smoking. A resettable fuse (also known as a PTC) is a resistor that has very unique properties. For this model, if your circuit tries to draw more than 250mA of current (if you have a bad short for instance) the PTC would ‘trip’ (by heating up). The increased resistance (trip state) would break the circuit and allow only a small leakage current. The leakage current may still be enough to hurt some electronics but...

Resistor 10k Ohm 1/6th Watt PTH
Sale!
Price: $0.43
View
Availability: Back Order
Item #: COM-08374 -

"1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 10K resistors make excellent pull-ups, pull-downs, and current limiters. Need more than one? Checkout our bag of resistors. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : 10KEBK-ND Documents:Breadboard Lecture, Sensor Interfacing, Voltage Dividers Sold in single pieces" ...

Resistor 330 Ohm 1/6th Watt PTH
Sale!
Price: $0.43
View
Availability: Back Order
Item #: COM-08377 -

"1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 330Ohm resistors make excellent LED current limiters and are great for general use. Need more than one? Checkout our bags of resistors. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : 330EBK-ND Documents:Breadboard Lecture Sold in single pieces" ...

7-Segment Display - LED (Red)
Sale!
Price: $2.00
View
Availability: Back Order
Item #: COM-08546 -

Description: Your basic 7-segment LED. Common anode. Two decimal points, but only the one on the right is wired. Digit height is 0.6". Overall height is 1"Documents:DatasheetArduino Library (Thanks Derek!)

Capacitor Ceramic 22pF
Sale!
Price: $0.43
View
Availability: Back Order
Item #: COM-08571 -

"This is a very common 22pF capacitor. Used with crystals for loading purposes. 0.1" spaced leads make this a perfect candidate for breadboarding and perf boarding. Rated at 200V. Documents:Crystal Oscillator Lecture Sold in single pieces"

BlinkM - I2C Controlled RGB LED
Sale!
Price: $23.65
View
Availability: Back Order
Item #: COM-08579 -

"BlinkM is a “Smart LED”, a networkable and programmable full-color RGB LED for hobbyists, industrial designers, prototypers, and experimenters. It is designed to allow the easy addition of dynamic indicators, displays, and lighting to existing or new projects. If you’ve used up all your microcontroller PWM channels controlling RGB LEDs and still want more, BlinkM is for you. BlinkM uses a high quality, high power RGB LED and a small AVR microcontroller to allow a user to...

Crystal SMD 24MHz
Sale!
Price: $1.65
View
Availability: Back Order
Item #: COM-08581 -

"These are very small surface mount quartz crystals used where size is a concern. 24MHz for maximum speed. Note: The datasheet below is a generic datasheet for many of our crystals. The value of the crystal may not match. Features: Small 5x3.2mm footprint Operating temperature: -40-85C Frequency Tolerance: +/- 20ppm 12pF load capacitance Documents:AT-SMD-5x3.pdf" ...