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TT Electronics - Optek Technology OP231 Infrared Emitting Diode

The OP231 is a gallium aluminium arsenide (GaAlAs) infrared emitting diode housed in a hermetic metal package. Its GaAlAs construction provides a higher radiated output compared to standard gallium arsenide at the same forward current. The diode features a lens that produces a narrow beam angle of 18°, suitable for precise beam applications. With an emission wavelength of 890 nm, it closely matches the spectral response of silicon phototransistors. This device is mechanically and spectrally compatible with OP800, OP593, and OP598 phototransistors, making it ideal for non-contact reflective object sensors, automation, safety, end-of-travel detection, and door sensors. It offers focused or non-focused optical patterns and an enhanced temperature range for reliable operation in various applications.

Authorized Distributors
Source:Newark
Part No:OP231
Stock:387
Inv Date:06-11-2026
Price: Unit price: $3.99
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Source:DigiKey
Part No:OP231
Stock:666
Inv Date:06-11-2026
Price: Unit price: $3.58
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Part No:OP231
Stock:282
Inv Date:06-12-2026
Price: Unit price: $3.58
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Part No:OP231
Stock:998
Inv Date:06-11-2026
Price: Unit price: $4.246
Buy/RFQ:
Part No:OP231
Stock:998
Inv Date:06-11-2026
Price: Unit price: $4.246
Buy/RFQ:
Part No:OP231
Stock:0
Inv Date:06-11-2026
Price: Unit price: $3.17
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TT Electronics - Optek Technology OP231 Infrared Emitting Diode Specifications:

  • Emission Wavelength: 890 nm
  • Beam Angle: 18° (focused), 50° (wide)
  • Package: Hermetic TO-46 metal housing
  • Optical Power (Peak): 15/NA mw/cm²
  • Operating Temperature Range: -65°C to +125°C
  • Storage Temperature Range: -65°C to +150°C
  • Forward Current: 100 mA (continuous), 10 A (peak)
  • Power Dissipation: 200 mW
  • Reverse Voltage: 2.0 V
  • Peak Emission Wavelength Tolerance: ±10 nm
  • Spectral Bandwidth: 80 nm
  • Dimensions: Length approx. 4.65 mm, Diameter ~2.0 mm
  • Application: Non-contact sensors, automation, safety systems, optical detection

Buy the Hlectronics OP231 - Reliable Infrared Emitting Diode for Industrial Applications

Purchase the Hlectronics OP231 infrared emitting diode online today and enhance your sensor and automation systems with superior optical power, precise beam angles, and high reliability. Perfect for non-contact detection, safety, and industrial automation, it offers a robust hermetic package and an operating temperature range from -65°C to +125°C. Whether for assembly line automation or safety sensors, this diode ensures consistent performance, ease of integration, and long-term durability. Order now to improve your industrial sensing applications with these high-quality infrared emitters.

Buy Hlectronics OP231 now and experience unmatched reliability and performance in your sensor and automation projects.

Frequently Asked Questions

Where can I buy TT Electronics - Optek Technology OP231?

You can click on the BUY or RFQ button to purchase OP231 from an authorized TT Electronics - Optek Technology distributor.

How do I troubleshoot issues or seek technical support for part OP231?

You can download the OP231 datasheet or visit the TT Electronics - Optek Technology website for support.

Who is the manufacturer of OP231?

TT Electronics - Optek Technology

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