![SMD LED polarity marking: is the cathode marking standardized? - Electrical Engineering Stack Exchange SMD LED polarity marking: is the cathode marking standardized? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/1TP3Z.gif)
SMD LED polarity marking: is the cathode marking standardized? - Electrical Engineering Stack Exchange
![EDGELEC 100pcs 5mm RGB Tri-Color (Red Green Blue Multicolor) 4Pin LED Diodes Common Cathode Diffused Round Lens 29mm Long Lead +300pcs Resistors (for DC 6-12V) Included,Light Emitting Diodes : Industrial & Scientific - Amazon.com EDGELEC 100pcs 5mm RGB Tri-Color (Red Green Blue Multicolor) 4Pin LED Diodes Common Cathode Diffused Round Lens 29mm Long Lead +300pcs Resistors (for DC 6-12V) Included,Light Emitting Diodes : Industrial & Scientific - Amazon.com](https://m.media-amazon.com/images/I/519QPNaOgrL._AC_SX679_.jpg)
EDGELEC 100pcs 5mm RGB Tri-Color (Red Green Blue Multicolor) 4Pin LED Diodes Common Cathode Diffused Round Lens 29mm Long Lead +300pcs Resistors (for DC 6-12V) Included,Light Emitting Diodes : Industrial & Scientific - Amazon.com
![50pcs 5mm RGB LED Diffused Diode Light Common Anode/CATHODE Tricolor Red Green Blue 5 mm LED Emitting Diode Lamp Wide Angle|Diodes| - AliExpress 50pcs 5mm RGB LED Diffused Diode Light Common Anode/CATHODE Tricolor Red Green Blue 5 mm LED Emitting Diode Lamp Wide Angle|Diodes| - AliExpress](https://ae01.alicdn.com/kf/H5e875c13d9bb40ca82f405228129a2c5A/50pcs-5mm-RGB-LED-Diffused-Diode-Light-Common-Anode-CATHODE-Tricolor-Red-Green-Blue-5-mm.jpg)
50pcs 5mm RGB LED Diffused Diode Light Common Anode/CATHODE Tricolor Red Green Blue 5 mm LED Emitting Diode Lamp Wide Angle|Diodes| - AliExpress
![Elektronik & Messtechnik Business & Industrie DIY bis 20mA 3V gemeinsame Kathode 20 Stück - 5mm klar RGB LED 4-Pin €5.98 Elektronik & Messtechnik Business & Industrie DIY bis 20mA 3V gemeinsame Kathode 20 Stück - 5mm klar RGB LED 4-Pin €5.98](https://ae01.alicdn.com/kf/H6b1cf69fdcb44c8abc6259c33dc7617cp/100-Pcs-5mm-Led-Diode-Rgb-Licht-Emittierende-4Pin-Gemeinsame-Anode-Kathode-F5-2V-3V-Tricolor.jpg)