Specifications
| Type | Description |
|---|---|
| Part Number | IR333-A |
| Manufacturer | EVERLIGHT |
| Product Type | SMD LED |
| Category | LED |
| LED Type | Infrared emitting diode |
| Package Size | 5.0 mm |
| Package Style | T-1 3/4 |
| Lens Color | Blue |
| Chip Material | GaAlAs |
| Lead Spacing | 2.54 mm |
| Package Dimension Tolerance | ±0.25 mm |
| Continuous Forward Current | 100 mA |
| Peak Forward Current | 1.0 A |
| Peak Forward Current Condition | Pulse width <=100 us, duty <=1%, Ta=25°C |
| Reverse Voltage | 5 V |
| Operating Temperature | -40 to +85 °C |
| Storage Temperature | -40 to +100 °C |
| Soldering Temperature | 260 °C |
| Soldering Temperature Condition | Soldering time <=10 seconds |
| Power Dissipation | 150 mW |
| Power Dissipation Condition | At or below 25°C free air temperature |
| Radiant Intensity at 20 mA | Min 7.8 mW/sr, Typ 20 mW/sr, Max 48 mW/sr |
| Radiant Intensity at 20 mA Condition | IF=20 mA, Ta=25°C |
| Radiant Intensity at 100 mA | Typ 85 mW/sr |
| Radiant Intensity at 100 mA Condition | IF=100 mA, pulse width <=100 us, duty <=1%, Ta=25°C |
| Radiant Intensity at 1 A | Typ 750 mW/sr |
| Radiant Intensity at 1 A Condition | IF=1 A, pulse width <=100 us, duty <=1%, Ta=25°C |
| Peak Wavelength | Typ 940 nm |
| Peak Wavelength Condition | IF=20 mA, Ta=25°C |
| Spectral Bandwidth | Typ 45 nm |
| Spectral Bandwidth Condition | IF=20 mA, Ta=25°C |
| Forward Voltage at 20 mA | Min 1.2 V, Typ 1.5 V |
| Forward Voltage at 20 mA Condition | IF=20 mA, Ta=25°C |
| Forward Voltage at 100 mA | Typ 1.4 V, Max 1.8 V |
| Forward Voltage at 100 mA Condition | IF=100 mA, pulse width <=100 us, duty <=1%, Ta=25°C |
| Forward Voltage at 1 A | Typ 2.6 V, Max 4.0 V |
| Forward Voltage at 1 A Condition | IF=1 A, pulse width <=100 us, duty <=1%, Ta=25°C |
| Reverse Current | Max 10 uA |
| Reverse Current Condition | VR=5 V, Ta=25°C |
| View Angle | Typ 20 deg |
| View Angle Condition | 2θ1/2, IF=20 mA, Ta=25°C |
| Radiant Intensity Rank M | 7.8 to 12.5 mW/sr |
| Radiant Intensity Rank M Condition | IF=20 mA |
| Radiant Intensity Rank N | 11.0 to 17.6 mW/sr |
| Radiant Intensity Rank N Condition | IF=20 mA |
| Radiant Intensity Rank P | 15.0 to 24.0 mW/sr |
| Radiant Intensity Rank P Condition | IF=20 mA |
| Radiant Intensity Rank Q | 21.0 to 34.0 mW/sr |
| Radiant Intensity Rank Q Condition | IF=20 mA |
| Radiant Intensity Rank R | 30.0 to 48.0 mW/sr |
| Radiant Intensity Rank R Condition | IF=20 mA |
| Forward Voltage Measurement Uncertainty | ±0.1 V |
| Luminous Intensity Measurement Uncertainty | ±10% |
| Dominant Wavelength Measurement Uncertainty | ±1.0 nm |
| Packing Quantity | 200 to 500 pcs per bag, 5 bags per box, 10 boxes per carton |
| RoHS Compliance | Product remains within RoHS compliant version |
| REACH Compliance | Compliant with EU REACH |
| Halogen Free Compliance | Br <900 ppm, Cl <900 ppm, Br+Cl <1500 ppm |
| Datasheet Status | request_only |
Product Overview
IR333-A is an EVERLIGHT infrared emitting diode designed as a 940 nm LED device. The package is a 5.0 mm T-1 3/4 through-hole format with 2.54 mm lead spacing, a blue lens, and GaAlAs chip material. Package dimensions use a ±0.25 mm tolerance unless otherwise specified.
Electrical ratings include 100 mA continuous forward current, 1.0 A peak forward current for pulse width <=100 us and duty <=1%, 5 V reverse voltage, and 150 mW power dissipation at or below 25 °C free air temperature. The device is rated for -40 to +85 °C operation and -40 to +100 °C storage.
At IF=20 mA and Ta=25 °C, the LED has a typical 940 nm peak wavelength, 45 nm spectral bandwidth, and 20 degree viewing angle. Radiant intensity is specified as 7.8 mW/sr minimum, 20 mW/sr typical, and 48 mW/sr maximum at IF=20 mA, with additional pulsed typical values at 100 mA and 1 A.
Key Features
- 940 nm infrared emitting diode
- 5.0 mm T-1 3/4 through-hole package
- 2.54 mm lead spacing
- Blue lens with GaAlAs chip material
- 100 mA continuous forward current rating
- 1.0 A pulsed peak forward current rating
- Typical 20 degree viewing angle
- 150 mW power dissipation at 25°C
- RoHS, REACH, and halogen-free compliance stated
Typical Applications
- Infrared emitter circuits
- 940 nm optical transmission
- Through-hole LED assemblies
- Pulsed infrared emission designs
- Narrow-angle IR indication
- GaAlAs infrared LED replacement
Procurement Notes
When requesting a quote for IR333-A, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For LED and optoelectronic sourcing, brightness bin, wavelength or color temperature bin, forward voltage range, viewing angle, moisture sensitivity level and soldering process limits may affect final selection, availability and lead time.
FAQ
What type of LED is the IR333-A?
IR333-A is an EVERLIGHT infrared emitting diode. The extracted datasheet facts identify it as a 940 nm infrared emitting LED using GaAlAs chip material in a 5.0 mm T-1 3/4 through-hole package.
What package is used for IR333-A?
The device uses a 5.0 mm T-1 3/4 through-hole LED package. The extracted facts also specify 2.54 mm lead spacing and a package dimension tolerance of ±0.25 mm unless otherwise specified.
What are the main current ratings for IR333-A?
At Ta=25°C, the continuous forward current rating is 100 mA. The peak forward current rating is 1.0 A when pulse width is <=100 us and duty cycle is <=1%.
What optical output data is specified at 20 mA?
At IF=20 mA and Ta=25°C, radiant intensity is specified as 7.8 mW/sr minimum, 20 mW/sr typical, and 48 mW/sr maximum. The peak wavelength is typically 940 nm.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.