DIP Infrared LED Datasheets

Download specifications for Through-Hole Infrared LED series

Round IR LEDs

5 models

Model Size Updated Download
IR LED 3mm 3mm — PDF
IR LED 5mm 5mm — PDF
IR LED 8mm 8mm — PDF
IR LED 10mm 10mm — PDF
High Power IR LED — — PDF

Bi-color and specialty infrared LED series are continuously updated — contact sales@queendomlamp.com for the latest list.

All specifications are subject to change without prior notice.
Datasheets are updated periodically. If your required model is not listed or the file appears outdated,
please contact our technical support team at sales@queendomlamp.com.

Series documents: IR LED Product Manual 2024 (PDF)

Downloads & Related Products

Product range: Infrared Emitter Products

Infrared DIP LED Selection Guide

850 nm or 940 nm?

Parameter 850 nm IR LED 940 nm IR LED
Visible red glow Faint (die visible) None — fully covert
Radiant intensity at equal drive Higher ~30–40% lower
Camera / sensor response Strong on most CCD/CMOS Weaker; needs IR-pass filter
Typical use CCTV night vision, IR illumination Remote controls, presence sensing

Reading the Datasheet

  • Radiant intensity (mW/sr) replaces luminous intensity for IR — compare only at the same test current and viewing angle
  • Half angle defines the beam: narrow (±10–20°) for long-range illumination, wide (±40°) for close-range sensing
  • Peak wavelength (λp) must match your photodiode sensitivity window (e.g., 940 nm emitters pair with 940 nm-filtered photodiodes)

Driving and Application Notes

IR LEDs tolerate high pulse currents — many DIP types accept 1 A pulses (≤ 100 µs, 1% duty) for burst signaling and camera flash. For continuous illumination, derate forward current above 25 °C ambient following the power derating curve in the datasheet. Common applications include CCTV illuminators, TV/AV remote controls, break-beam sensors, reflective object sensors, and IR data links.

See all wavelength options in Infrared Emitters, including SMD and high-power formats. For matched receivers, our photodiode series covers 850/940 nm filtering.

DIP Infrared Packages: What the 5 mm and 3 mm Choices Mean

Through-hole infrared LEDs remain the default where the emitter must sit proud of the board, aim mechanically, or survive hand assembly. The 5 mm package holds a standard die with a molded lens that sets the beam; the 3 mm package trades roughly 20–30% of radiant intensity for tighter spacing on dense panels and remote-control keypads. Both are available with the same 850 nm / 940 nm die options as their SMD counterparts, so the wavelength logic — 850 nm for camera and sensor reach, 940 nm for invisibility and control — carries over directly.

Beam Angle Selection

Half-Angle Radiant Intensity Typical Working Distance Representative Use
±15–20° Highest (narrow lens) 3–10 m Beam-break counters, long-range camera illumination
±30–40° Moderate 1–3 m Reflective sensing, card readers, ear-thermometer probes
±60° and wider Lowest (flood lens) <1 m Close-range presence detection, diffuse illumination

Circuit Patterns That Age Well

  • Remote-control transmitters: single 940 nm die, 30–40° lens, pulsed at 300–500 mA peak with 1:10 duty — carrier-modulated at 36–38 kHz for receiver selectivity
  • Photointerrupter emitters: narrow-angle 940 nm matched to the slot receiver, driven DC at 20 mA with the receiver threshold set mid-scale
  • Camera illuminators: 850 nm arrays with current-matched series strings, DC drive, and the supply decoupled from the video ground plane to prevent switching noise in the image

For array-scale designs where the emitter and camera are engineered together, the infrared camera application note walks through wavelength, angle, and drive trade-offs with measured results; the biometric passport reader case covers 850 nm illumination at close working distances.

Frequently Asked Questions

Can I replace a 5 mm IR LED with a 3 mm one without changing the circuit?

Electrically yes — forward voltage and rated current are the same. Optically you lose intensity because the smaller lens collects less light; expect to widen the receiver threshold or add a second emitter.

Why did my IR emitter dim after a year of outdoor service?

Encapsulant yellowing under sustained UV and heat is the usual cause. Specify glass-lens or high-reliability epoxy variants for continuous outdoor operation, and verify the operating junction temperature stays under 85 °C.

How close can I match emitters in a beam-break pair?

Order to a radiant-intensity rank if the vendor offers binning; otherwise buy the emitter and receiver from one lot and verify the pair’s margin across temperature before committing the enclosure design.