Product Overview
OPTEK OP999 890nm Infrared PIN Photodiode T-1 3/4 Through-Hole
Condition
Unused new old stock (NOS). Package bodies are clean with straight through-hole wire leads. Sold each.
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Product Overview
Engineered for infrared beam-break circuits and optical interrupters, this detector pairs a dark blue dome lens with high-speed junction response. The radial through-hole package integrates into light barrier receivers, optical tachometers, and pulse detection assemblies.
Key Features
- 890 nm peak sensitivity wavelength
- Standard T-1 3/4 (5mm) radial package
- Infrared-transmitting dark blue molded dome lens
- Two-lead through-hole configuration
- Narrow 18-degree receiving half-angle
- Fast 5 ns rise and fall response time
Applications
- Replacing damaged optical receivers in industrial interrupter gates and tachometer pickups
- Breadboarding custom infrared remote control receivers, beam-break tripwires, or optical tachometers
- Benchtop repairs on automated counting systems and optical edge sensors
Frequently Asked Questions
Is the OPTEK OP999 an emitter or a detector?
The OP999 is a photodetector (PIN photodiode), not an infrared emitting diode. It generates photocurrent when exposed to infrared light centered near 890 nm.
What is the lead spacing and footprint?
It uses standard radial through-hole wire leads suited for 0.1-inch (2.54 mm) pitch prototype boards and printed circuit boards.
How is the package oriented for cathode and anode?
The cathode lead aligns with the flat edge on the package flange, following standard radial optical component polarity conventions.
A classic 890nm eye built for quiet detection when the beam breaks. Solder it in, align your emitter, and let the circuit do its job.
