OP290A OPTEK TECHNOLOGY LED (Other) In Stock
OPTEK OP290A is an 890 nm infrared LED in a T-1 3/4 (5mm) through-hole package with a 30° half-angle beam and continuous forward current rated at 100 mA. It delivers high-power IR emission for sensing, remote control, and free-space optical link applications requiring a focused near-infrared beam.
- Manufacturer
- OPTEK TECHNOLOGY
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- OP290A Datasheet PDF
- Category
- LED
- Price
- From $0.8294(MOQ 100)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of OP290A?
- 890 nm peak emission wavelength precisely matches silicon photodetector sensitivity peaks for optimal IR sensor system performance
- T-1 3/4 (5mm) through-hole package with 30° half-angle provides a focused narrow IR beam ideal for long-range proximity and object detection
- 100 mA continuous forward current rating with 1A peak pulsed capability enables high-intensity burst modulation for remote-control and data-link use cases
What is OP290A used for?
The OP290A is designed for proximity detection, reflective and transmissive optical sensing, and infrared remote-control systems where an 890 nm, 5mm through-hole emitter delivers a focused 30° beam with up to 100 mA continuous drive. Its emission wavelength is well-matched to standard silicon photodiodes and phototransistors, simplifying IR transceiver circuit design in industrial automation barriers, encoders, and smoke detectors. Medical device proximity switches, robotics edge detectors, and consumer IR blaster modules also benefit from the OP290A's high radiant intensity and compact T-1 3/4 form factor.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the OP290A datasheet?
OP290A Datasheet DownloadOfficial datasheet from OPTEK TECHNOLOGY
What are equivalent replacements for OP290A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 890 nm emission of the OP290A compare to 940 nm LEDs for silicon photodetector pairing?
At 890 nm, the OP290A sits closer to the peak spectral response of many silicon PIN photodiodes (typically 850–900 nm), yielding higher detected photocurrent for a given forward drive current of 100 mA compared with 940 nm emitters, which fall further from the detector's peak. This improves signal-to-noise ratio in proximity sensing and optical barrier applications.
What pulsed drive current can the OP290A handle, and why does pulsed operation benefit IR sensing systems?
The OP290A supports a peak pulsed forward current of 1A at low duty cycles (typically under 10%), compared to its 100 mA continuous rating. Pulsed drive sharply increases instantaneous radiant intensity, extending detection range and enabling lock-in demodulation circuits to reject ambient 890 nm IR noise, which is critical in industrial and outdoor optical sensing environments.
In what through-hole assembly scenarios is the 5mm T-1 3/4 package of the OP290A preferred over SMD IR emitters?
The T-1 3/4 (5mm) package is preferred when the emitter must protrude through a panel aperture, be hand-soldered during prototyping, or be mechanically aligned with a remote optical axis, since its 30° half-angle beam can be physically aimed without PCB repositioning—advantages that surface-mount IR LEDs on flat PCBs cannot easily replicate.
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Why Buy from FindMyChip
About OPTEK TECHNOLOGY
OPTEK TECHNOLOGY is a leading electronic component manufacturer. FindMyChip sources OPTEK TECHNOLOGY ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.9900 | $99.00 |
| 250+ | $0.9580 | $239.50 |
| 1000+ | $0.8400 | $840.00 |
| 2500+ | $0.8300 | $2075.00 |
| 5000+ | $0.8294 | $4146.95 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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