IRED（Infrared Emitting Diode)
*IRED series have been discontinued and orders are no longer accepted as of September 30th 2023.
IRED was the first product in the optical semiconductor business of Hitachi, Ltd.
We have continued to produce this product for 43 years and it has been favorably received by many customers.
FL-type IRED uses a unique dome-shaped chip to achieve high light out-coupling efficiency and lens technology to create a highly parallel beam shape.
Therefore, it is widely used for FA encoders that require high output.
The main feature of SG type is its large, clean, uniform and strong emission with no wire shadow on the emitting surface.
It has been adopted by many customers for eye care systems, space transmission devices, sensor systems and others.
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IRED Radiation Directional
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SG Type
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FL Type
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IRED's Main Characteristics
| Part No | Absolute Maximum Rating |
Optical and Electrical Characterristics | Test Conditions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Forward Current (mA) |
Operating temperature (℃） |
Optical output power (mW) |
Peak wavelength (nm) |
Spectral width (nm) |
Forward voltage (V) |
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| min. | typ. | max. | min. | typ. | max. | min. | typ. | max. | min. | typ. | max. | ||||
| HE8811 | 200 | -20 to 60 | 20 | 30 | - | 780 | 820 | 900 | - | 50 | 60 | - | 2 | 2.5 | IF=150mA |
| HE8404SG | 250 | -20 to 60 | 40 | 50 | - | 790 | 820 | 850 | - | 50 | 60 | - | 1.9 | 2.5 | IF=200mA |
| HE8812SG | 250 | -20 to 60 | 40 | 50 | - | 840 | 870 | 900 | - | 50 | 60 | - | 1.8 | 2.5 | IF=200mA |
| HE8807SG | 200 | -20 to 85 | 10 | 15 | - | 800 | 880 | 900 | - | 30 | 60 | - | 1.7 | 2.3 | IF=150mA |
| HE8807FL | 200 | -20 to 85 | 0.5* | 1.0* | - | 800 | 880 | 900 | - | 30 | 60 | - | 1.7 | 2.3 | IF=150mA |
*: The optical output within 9 degrees of the acceptance angle.
Application
| Properties | Examples of applications |
|---|---|
| Excellent beam shape | Ophthalmic Equipment, Encoders |
| High brightness |