Components & Parts / Passives

Always have the right SMT components at your hand with this awesome 0805 Resistor and Capacitor book set! This book has nice translucent pages filled with cut tape SMT 0805 components, sorted, labeled and ready to go. This book has 63 5% resistor values, 3025 parts and 17 capacitor values, 700 parts. The nice thing is that you get a good distribution of the...

Always have the right SMT components at your hand with this awesome 0603 Resistor and Capacitor book set! This book has nice translucent pages filled with cut tape 0603 SMT components, sorted, labeled and ready to go. This book has 63 5% resistor values, 3025 parts and 17 capacitor values, 700 parts. The nice thing is that you get a good distribution of the...

These are our favorite trim pots, perfect for breadboarding and prototyping. They have a long grippy adjustment knob and with 0.1" spacing, they plug into breadboards or perfboards with ease. This is the same pot that comes with our character LCDs and tutorial packs.<!--

This potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 10K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Once you're done...

As any engineer will tell you, 0.1uF ceramic capacitors are the magic fairy dust of electronics - sprinkle them over your circuit schematics for good luck! But seriously, a 0.1uF capacitor right next to the VCC pin of your chips will improve stability by filtering out power supply spikes and noise that can cause flaky behavior. We love these little guys, they have...

This Big Freaking Capacitor is just the trick when you have a lot of current sloshing around your project. They'll help smooth out voltage spikes by providing a little buffering. We use these to help stabilize solar panels on our solar Lipoly charger kit, but they'd also be great with our servo driver boards or on the power connection to our 5V 10A power supply....

This 1K potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 1K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Once you're done...

This potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 100K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Once you're done...

We like capacitors so much we made a kids' show about them. They're super handy and it's really helpful to have a variety lying around to pick and choose from. This is a 10 pack of 10uF 50v capacitors, so they can be used with any DC voltage up to 50V. They have a tolerance of ±20% and long flexible pins that make them great for perf or breadboards. Remember...

We like capacitors so much we made a kids' show about them. They're super handy and it's really helpful to have a variety lying around to pick and choose from. This is a 10 pack of 220uF 16v capacitors so they can be used with any DC voltage up to 16V. They have a tolerance of ±20% and long flexible pins that make them great for perf or breadboards. Remember...

We like capacitors so much we made a kids' show about them. They're super handy and it's really helpful to have a variety lying around to pick and choose from. This is a 10 pack of 100uF 16v capacitors so they can be used with any DC voltage up to 16V. They have a tolerance of ±20% and long flexible pins that make them great for perf or breadboards. Remember...

We like capacitors so much we made a kids' show about them. They're super handy and it's really helpful to have a variety lying around to pick and choose from. This is a 10 pack of 47uF 25v capacitors, so they can be used with any DC voltage up to 25V. They have a tolerance of ±20% and long flexible pins that make them great for perf or breadboards. Remember...

Oh say can you see By the knob's early light... Sorry - we thought that was clever. And while it wasn't really, this potentiometer definitely is! We've seen these in miniature synthesizers. They're bigger than a trim-pot but smaller than a chunky potentiometer. Best of all no knob required! These have a knurled plastic grip with a white stripe marking. Use it as-is,...

This linear slide potentiometer comes with an added kick - its not just a plain old slide pot! Underneath is mounted a slim geared DC motor that can gently move the wiper up and down, without human interaction. Often seen in very fancy A/V control panels, you could use these as linear feedback sensors for light robotics, or for interactive controls that can be...

This Panel Mount Right Angle 10K Linear Potentiometer w/ On-Off Switch is a two-in-one, with both a breadboard-friendly potentiometer and a switch. For the potentiometer-half, you've got a standard linear taper 10K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. It also comes equipped with an...

Oh say can you see By the knob's early light... Sorry - we thought that was clever. And while it wasn't really, this potentiometer knob definitely is. It's a 'soft touch' T18 knob that works great with our Panel Mount 10K, Panel Mount 1K, and Panel Mount 100K potentiometers. The knob is designed to set directly on the potentiometer's ridges so it's an easy &...

This slim and modern potentiometer is small and compact, yet looks good and has a nice feel. We hand-selected the best knobs for your project in different sizes and varieties. This one is the Slim Metal Knob 10mm diameter x 10mm Tall (T18 Splines). It's a brushed aluminum knob with a shiny black (anodized?) coating. It kind of looks like the type of knob you'd find...

This potentiometer is a two-in-one: it's a log taper 10K ohm potentiometer, with a grippy shaft and it comes with an on-off switch. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a perfboard. Note the spacing on the switch/pot pins is 0.2" so it...

Sometimes a simple analog control device can be the perfect tactile solution for your project, but they can be surprisingly hard to come by. Luckily we've found a low-cost, quality Mini Analog Joystick to fill your directional analog input needs! Unlike most arcade-style joysticks which come with four clicking switches, this product has two 10KΩ potentiometers...

Oh say can you see By the knob's early light... Sorry - we thought that was clever. And while it wasn't really, this potentiometer knob definitely is. It's a 'soft touch' T18 knob that works great with our Panel Mount 10K, Panel Mount 1K, and Panel Mount 100K potentiometers. The knob is designed to set directly on the potentiometer's ridges so it's an easy &...

Slip slidin' away Slip slidin' away You know the nearer your resistance The more you're slip slidin' away If you're tired of the regular-old-twisty potentiometers we carry, why not slide over and try this slide pot? Most famously used on mixers and the transporter control panel on Star Trek, these slide pots are so cute and short at only 35mm. Use as a voltage...

This slim and modern potentiometer is small and compact, yet looks good and has a nice feel. We hand-selected the best knobs for your project in different sizes and varieties. This one is the Slim Metal Knob 10mm diameter x 15mm Tall (T18 Splines). It's a brushed aluminum knob with a shiny black (anodized?) coating. It kind of looks like the type of knob you'd find...

Slip slidin' away Slip slidin' away You know the nearer your resistance The more you're slip slidin' away If you're tired of the regular-old-twisty potentiometers we carry, why not slide over and try this slide pot? Most famously used on mixers and the transporter control panel on Star Trek, these slide pots are not too long at only 75mm. Use as a voltage divider and...

This Alpha 10K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 10K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots...

Slip slidin' away Slip slidin' away You know the nearer your resistance The more you're slip slidin' away If you're tired of the regular-old-twisty potentiometers we carry, why not slide over and try this slide pot? Most famously used on mixers and the transporter control panel on Star Trek, these slide pots are not too long at only 45mm. Use as a voltage divider and...

Our family of I2C-friendly user interface elements grows by one with this new product that makes it plug-n-play-easy to add a 75mm long slide potentiometer to any microcontroller or microcomputer with an I2C port. Each breakout is 3" long and 0.8" wide, with a single linear slide pot in the center. Underneath, there are four under-lighting NeoPixels that can display...

For projects that need a rotary encoder but need to keep it single-sided or need to avoid interrupting traces or devices on the other side, here's an all-SMT rotary encoder! It's a high-quality 30-detents encoder from Alps, with detents and a nice feel. There's a nice smooth bushing for placement in a box. Knob not included, but you can pick one up here. This encoder...

This Panel Mount 10K Dual Linear Potentiometer w/ On-Off Switch is a two-in-one, you get a dual-ganged potentiometer and an on-off switch. For the potentiometer-half, you've got a dual standard linear-taper 10Kohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. It also comes equipped with an on/off...

This potentiometer is a two-in-one, good in a breadboard or with a panel. It's a log taper 10K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Once you're done prototyping, you can...

This Alpha 50K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 50K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots...

This Alpha Dual-Gang 10K Audio potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's an audio/log taper 10K potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into...

This Alpha 100K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 100K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots...

For the easiest way possible to measure twists, turn to this STEMMA potentiometer breakout (ha!). This plug-n-play pot comes with a JST-PH 2mm connector and a matching JST PH 3-Pin to Male Header Cables - 200mm, so wiring up is a cinch. Simply plug the cable in, then use the black wire to connect to your ground, white wire to the input/signal pin, and the red wire to...

This Alpha Dual-Gang 100K Audio potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's an audio / log tape 100K ohm potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug...

It's half USB Key, half Adafruit Trinket, half mini slide pot... it's Slider Trinkey, the circuit board with a Trinket M0 heart, NeoPixel glow, and a 35mm long 10KΩ slide potentiometer. The PCB is designed to slip into any USB A port on a computer or laptop. There's an ATSAMD21 microcontroller on board with just enough circuitry to keep it happy. One pin of the...

This Panel Mount 10K Dual Log Potentiometer is a dual-ganged potentiometer that will satisfy all your stereo-signal needs. Instead of just one potentiometer, you actually get two separate pots, 'ganged' together. Turning the grippy shaft twists both standard logarithmic-taper 10Kohm potentiometers. It's smooth and easy to turn, but not so loose that it will shift on...

This Alpha Dual-Gang 50K Linear potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's an audio/log taper 50K potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into...

You might recognize this interesting new component from behind-the-scenes studio clips of audio recording equipment or even music videos. A fader is a control device for fading or changing the sound volume, light intensity, or simply the gain on an audio or video signal. Here is a small, black handheld-size DIY version for your next audio or music (maybe even with a...

This Alpha 5K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 5K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Once you're done...

This Alpha 25K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 25K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots...

This Alpha Dual-Gang 250K Audio potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's a audio/log taper 250K ohm potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it...

This Alpha 10K Reverse Audio potentiometer is a two-in-one, good in a breadboard or with a panel. It's a unique reverse audio taper 10K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha...

This Alpha 5K Reverse Audio potentiometer is a two-in-one, good in a breadboard or with a panel. It's a unique reverse audio taper 5K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots...

This Alpha 1K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 1K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots for...

This Alpha 250K Reverse Audio potentiometer is a two-in-one, good in a breadboard or with a panel. It's a unique reverse audio taper 250K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha...

This Alpha 1M Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 1 Megaohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots...

This Alpha 500K Reverse Audio potentiometer is a two-in-one, good in a breadboard or with a panel. It's a unique reverse audio taper 500K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha...

This Alpha 50K Reverse Audio potentiometer is a two-in-one, good in a breadboard or with a panel. It's a unique reverse audio taper 50k ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha...

This Alpha 1M Reverse Audio potentiometer is a two-in-one, good in a breadboard or with a panel. It's a unique reverse audio taper 1 Megaohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha...

This Panel Mount 10K Dual Linear Potentiometer is a dual-ganged potentiometer that will satisfy all your stereo-signal needs. Instead of just one potentiometer, you actually get two separate pots, 'ganged' together. Turning the grippy shaft twists both standard linear-taper 10Kohm potentiometers. It's smooth and easy to turn, but not so loose that it will shift on...

This Panel Mount 10K Dual Logarithmic Potentiometer w/ On-Off Switch is a two-in-one; you get a dual-ganged potentiometer and an on-off switch. For the potentiometer-half, you've got a dual standard log-taper 10Kohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. It also comes equipped with an on/off...

We've had a foot pedal switch in the store for a while but some people have contacted us asking if there was a way to retrofit it to perform variable speed control, like a potentiometer. And here it is! This is a Foot Pedal Potentiometer (a.k.a Sewing Machine Speed Controller). This is a really nice quality one, very sturdy, with a friendly 3.5mm 'audio' connector on...

This Alpha 2K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 2K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks...

This Alpha 20K "W" TS Tone potentiometer is a two-in-one, good in a breadboard or with a panel. It's a funky W TS Tone taper 20K ohm potentiometer. A W taper is pretty unique and is reverse audio log up to the midpoint and regular audio log after that, sometimes these are called 'G' taper. It's smooth and easy to turn, but not so loose that it will shift on its own....

This Alpha Dual-Gang 1M Audio potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's an audio/log tape 1 Megaohm potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it...

This Alpha 1K Reverse Audio potentiometer is a two-in-one, good in a breadboard or with a panel. It's a unique reverse audio taper 1K potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots for...

This Alpha Dual-Gang 5K Audio potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's an audio/log taper 5K potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a...

This Alpha 250K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 250K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard....

This Alpha 500K Linear potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 500K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha pots...

This Alpha 100K Reverse Audio potentiometer is a two-in-one, good in a breadboard or with a panel. It's a unique reverse audio taper 100K ohm potentiometer. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Folks love Alpha...

This Alpha Dual-Gang 1K Audio potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's an audio/log taper 1K potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a...

This Alpha Dual-Gang 500K Linear potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's an audio/log taper 500K potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it...

This Alpha Dual-Gang 25K Audio potentiometer is a two-in-one potentiometer stack, for independent stereo control. It's an audio/log taper 25K potentiometer on each half, with one shared knob for both. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into...

When I was studying power supply electronics in school, the instructor always talked about adding BFC's to the circuit - Big Freakin' Capacitors. This here is UHFC - Unbelievably Huge Freaking Capacitor. If you have a super-cap project that needs up to 700 Farads of capacitance, check it out. Like most super-caps it has a 2.5V-max rated voltage, and remember that...

Oh say can you see By the knob's early light... Sorry - we thought that was clever. And while it wasn't really, this potentiometer knob definitely is. It's a 'soft touch' T18 knob that works great with our Panel Mount 10K, Panel Mount 1K, and Panel Mount 100K potentiometers. The knob is designed to set directly on the potentiometer's ridges so it's an easy &...