Order IR LEDs Online with Confidence
Get the right infrared LEDs for cameras, sensors, remote controls or robotics projects without guesswork. We stock a wide range of IR emitter wavelengths, viewing angles and power ratings so you can match a part to a specific application - and collect same-day from Samrand or our CBD branches when stock allows. Save procurement time with VAT invoices, account quoting for bulk buys, and local support that understands South African lead-time realities.
Why buy from Communica for IR LEDs
Practical benefits matter: local availability reduces project delays, our branch pickup options cut freight costs, and our selection includes maker-favourite brands and industrial-grade parts suitable for prototypes through production. Browse compatible parts and related accessories on our collections page or see the full catalog on All Products.
Quick spec callouts to decide fast
When ordering IR LEDs online, prioritise wavelength (commonly 850nm and 940nm), radiant intensity (mW/sr), viewing angle, forward voltage and peak current. Below is a compact comparison to help you choose the right emitter for night-vision, proximity sensing or remote signalling.
| Use case | Wavelength | Viewing angle | Typical drive |
|---|---|---|---|
| Camera illumination | 850nm | 30°-120° | 20-100 mA pulsed |
| Invisible illumination (no visible red glow) | 940nm | 40°-120° | 20-200 mA pulsed |
| Proximity sensor | 850nm | 20°-60° | 5-50 mA continuous |
Simple resistor calculation - practical formula
Use Ohm’s law to size a series resistor for single LED drive: R = (Vsup - Vf) / I. Example: a 5V supply, Vf = 1.2V, target current I = 20mA gives R = (5 - 1.2) / 0.02 = 190 Ω (use 180-200 Ω standard). For pulsed arrays, consider peak current, duty cycle and thermal limits and consult the LED datasheet for pulse ratings.
Wiring diagram (single LED and small array)
Single LED series resistor wiring (ASCII):
+V ---///\---|>|--- GND R LED
Three LEDs in series (ensure Vsup > sum of Vf):
+V ---///\---|>|---|>|---|>|--- GND R LED1 LED2 LED3
If you need help matching LEDs to drivers or camera sensitivity, our staff can advise - see branch locations and hours on the Branches & Trading Hours page for collection options.
