OP266C Infrared Emitter - Equivalent & Substitute Parts

Part Overview

The OP266C is an infrared (IR) emitter operating at 890nm wavelength, designed for through-hole mounting applications requiring 50mA forward current at 1.8V typical forward voltage. This component is classified as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications. The OP266C maintains full ROHS3 compliance and operates across the industrial temperature range of -40°C to 100°C.

Substiute Parts

OP266C

TT Electronics/Optek TechnologyIn Stock: 998OP266C Datasheet

Current PartRFQ

OP266B

TT Electronics / Optek TechnologyIn Stock: 1502OP266B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP266C is determined by strict equivalence across the following electrical and mechanical parameters:

• Wavelength: 890nm (exact match required)
• Forward current rating: 50mA (exact match required)
• Forward voltage: 1.8V typical (exact match required)
• Viewing angle: 18° (exact match required)
• Package type: T-1 through-hole (exact match required)
• Operating temperature range: -40°C to 100°C (exact match required)
• Compliance certifications: ROHS3, REACH Unaffected (exact match required)

The OP266B qualifies as a direct substitute based on identical electrical specifications and mechanical form factor. The primary distinction is product status: OP266B is active and currently in production, whereas OP266C is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The OP266B is the direct equivalent for OP266C replacement. Both components share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility in existing circuit designs. The OP266B holds active product status with current manufacturing availability, eliminating supply chain constraints associated with the obsolete OP266C. Both components maintain equivalent compliance certifications (ROHS3 Compliant, REACH Unaffected), supporting regulatory requirements across industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can OP266B be used as a direct replacement for OP266C in existing designs? A: Yes. The OP266B provides identical electrical performance (890nm wavelength, 50mA forward current, 1.8V forward voltage) and mechanical compatibility (T-1 through-hole package, 18° viewing angle). No circuit modifications are required.

Q: What is the primary reason to transition from OP266C to OP266B? A: The OP266C is classified as obsolete. The OP266B is the active equivalent, ensuring long-term supply availability and manufacturing continuity.

Q: Are there compliance differences between OP266C and OP266B? A: No. Both components maintain identical compliance status: ROHS3 Compliant and REACH Unaffected.

Q: Does the T-1 package remain the same for both parts? A: Yes. Both OP266C and OP266B use the T-1 through-hole package, maintaining identical PCB footprint and mounting requirements.

Q: What is the operating temperature range for both components? A: Both OP266C and OP266B operate across -40°C to 100°C (TA), supporting industrial temperature applications.