1N6266 Infrared Emitter - Equivalent & Substitute Parts

Part Overview

The 1N6266 is an infrared (IR) emitter operating at 940nm wavelength, designed for applications requiring high-intensity near-infrared light emission. Manufactured by onsemi, this component delivers 100mA forward current with 25mW/sr radiant intensity in a TO-46-2 through-hole package. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

1N6266

onsemiIn Stock: 10701N6266 Datasheet

Current PartRFQ

OP130

TT Electronics/Optek TechnologyIn Stock: 1760OP130 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N6266 is determined by the following critical parameters:

• Wavelength tolerance: 940nm ±5nm range acceptable for most IR receiver applications
• Forward current rating: Must support 100mA continuous operation
• Package compatibility: TO-46-2 through-hole form factor required for mechanical fit
• Operating temperature range: Must span -65°C to 125°C minimum
• Radiant intensity: Output power must meet or exceed application requirements

The OP130 qualifies as a substitute based on matching wavelength (935nm, within tolerance), identical forward current rating (100mA), compatible package (TO-46-2), and matching temperature range (-65°C to 125°C).

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of 1N6266:

The OP130 (TT Electronics/Optek Technology) is the primary substitute. It maintains electrical compatibility across all critical parameters: identical 100mA forward current, matching TO-46-2 package, and equivalent operating temperature range. The 5nm wavelength difference (935nm vs 940nm) falls within acceptable tolerance for standard IR receiver applications. The OP130 is actively manufactured and RoHS3 compliant, providing supply chain continuity and regulatory compliance advantages over the obsolete 1N6266.

Compliance considerations:

Both components carry identical REACH Unaffected and EAR99 ECCN classifications. The OP130 provides additional RoHS3 compliance certification, beneficial for applications subject to environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can the OP130 directly replace the 1N6266 in existing designs?

A: Yes. The OP130 matches the 1N6266 in forward current (100mA), package type (TO-46-2), and operating temperature range (-65°C to 125°C). The 5nm wavelength difference (935nm vs 940nm) is within typical IR receiver acceptance bandwidth. No circuit modifications are required.

Q: What is the significance of the wavelength difference between 940nm and 935nm?

A: The 5nm difference represents approximately 0.5% deviation. Most IR receiver photodiodes designed for 940nm operation accept wavelengths within ±10nm. The OP130 at 935nm remains within this tolerance band for standard applications.

Q: Are there mechanical compatibility concerns with the OP130 substitute?

A: No. Both components use identical TO-46-2 through-hole packages with lens-top metal can construction. PCB footprints and mounting procedures are interchangeable.

Q: How do the radiant intensity specifications compare?

A: The 1N6266 specifies 25mW/sr while the OP130 specifies 1mW/cm². These use different measurement units (solid angle vs area). Direct numerical comparison is not valid. Application-specific optical system design determines whether the OP130 output meets performance requirements.

Q: Is the OP130 more readily available than the 1N6266?

A: Yes. The 1N6266 is obsolete with no active manufacturing. The OP130 maintains active production status, ensuring reliable supply availability.