3535 Far‑Infrared LED (1000–2000 nm)
OVERVIEW|Product Overview
The 3535 far‑infrared LED series is built on a ceramic‑based 3.5 × 3.5 mm SMD package and operates across the 1000–2000 nm wavelength range.
It delivers stable radiant output suitable for heating‑related equipment, drying systems, infrared illumination modules, and controlled thermal environments.
The robust thermal structure supports long‑duration operation in industrial applications.
Multiple nominal wavelengths and radiant‑intensity levels are available, enabling engineers to match different material absorption characteristics and system requirements.
The series is suitable for compact IR emitter modules, multi‑channel infrared arrays, and custom industrial IR systems.
PRODUCT|Specifications
| PRODUCT | RANK | NOMINAL (nm) |
PEAK (nm) | RADIANT (mW/sr) | VOLTAGE (V) | TYPICAL 2θ1/2 |
TEST (mA) |
PART NUMBER | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| MIN | MAX | MIN | MAX | MIN | MAX | ||||||
| HP3535S12WF | SMDIL0816 | 1050 | 1000 | 1080 | 180 | 360 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0816 |
| HP3535S12WF | SMDIL0817 | 1200 | 1120 | 1240 | 150 | 300 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0817 |
| HP3535S12WF | SMDIL0818 | 1300 | 1240 | 1360 | 120 | 260 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0818 |
| HP3535S12WF | SMDIL0819 | 1400 | 1360 | 1440 | 100 | 200 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0819 |
| HP3535S12WF | SMDIL0820 | 1500 | 1440 | 1560 | 90 | 180 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0820 |
| HP3535S12A12WF | SMDIL0821 | 1600 | 1560 | 1640 | 80 | 160 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0821 |
| HP3535S12A22WF | SMDIL0822 | 1750 | 1720 | 1840 | 60 | 130 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0822 |
| HP3535S12WF | SMDIL0823 | 1950 | 1840 | 2040 | 40 | 100 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0823 |
| HP3535S12WF | SMDIL0824 | 2060 | 1960 | 2080 | 30 | 90 | 1.40 | 2.40 | 120 | 700 | 85414010005SMDIL0824 |
FEATURES|Product Advantages
- Far‑infrared wavelength options from 1050–2060 nm for industrial IR systems.
- 3535 ceramic SMD package with high thermal conductivity.
- Stable radiant output suitable for continuous operation.
- Multiple radiant‑intensity ranks for different design requirements.
- 120° wide viewing angle for uniform infrared distribution.
- Compliant with ROHS, REACH and EN62471 photobiological safety standards.
APPLICATION|Typical Applications
- Industrial infrared heating modules.
- Drying and thermal‑processing equipment.
- Infrared illumination for inspection and sensing systems.
- Moisture‑control heating in electrical cabinets and enclosures.
- Laboratory instruments requiring far‑infrared light sources.


