The dual LED series consists of a 660nm (Red), 940nm (IR). They are widely used in medical analytical and monitoring devices. They can also be used in applications requiring a low cost Bi-Wavelength light source.
The matching photo detectors' responses are optimized for maximum responsivity at 660nm as well as near IR wavelengths. They exhibit low capacitance and low dark currents.
Product Features Leadless Ceramic Substrate Lead Frame Molded Packages Two and Three Lead Designs Bi-Wavelengths LED's Matching Detector Response Product Applications SpO2 Blood Analysis Medical Instrumentation Ratiometric Instruments
■ Absolute maximum ratings
| Parameter | Symbol | Ratings | Unit | |
| 660nm | 940nm | |||
| Power dissipation | PD | 90 | 60 | mW |
| Forward current | IF | 50 | 50 | mA |
| Reverse voltage | VR | 5 | V | |
| Operating temperature | TOPR | -25 ~ +85 | ℃ | |
| Storage temperature | TSTG | -30 ~ +100 | ℃ | |
■ Electro-optical characteristics (Ta=25℃)
| Parameter | Symbol | Min | Typ | Max | Unit | Condition | |
| Forward voltage | VF | 660nm | - | 1.80 | 2.0 | V | IF = 20mA |
| 940nm | - | 1.25 | 1.4 | ||||
| Reverse current | IR | 660nm | - | - | 10 | μA | VR = 5V |
| 940nm | - | - | 10 | ||||
| Radiant Intensity | PO | 660nm | 2.0 | 5.0 | - | mW | IF = 20mA |
| 940nm | 1.0 | 2.0 | - | ||||
| Peak wavelength | λp | 660nm | 660 | - | 666 | nm | IF = 20mA |
| 940nm | - | 940 | - | ||||
| Spectral Bandwidth | Δλ | 660nm | - | 20 | - | nm | IF = 20mA |
| 940nm | 70 | ||||||
