OP290C Infrared Emitter - Equivalent & Substitute Parts

Part Overview

The OP290C is an infrared (IR) emitter manufactured by TT Electronics/Optek Technology, designed for applications requiring 890nm wavelength emission at 150mA forward current. This component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. The OP290C operates across an industrial temperature range of -40°C to 100°C and is packaged in a T 1 3/4 through-hole configuration. Substitute parts are identified when equivalent electrical and mechanical parameters align within acceptable tolerances for the target application, particularly when the primary part faces inventory constraints or end-of-life considerations.

Substiute Parts

OP290C

TT Electronics/Optek TechnologyIn Stock: 1296OP290C Datasheet

Current PartRFQ

QED123

onsemiIn Stock: 4736QED123 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OP290C is determined by alignment of the following critical parameters:

• Wavelength tolerance: Near-infrared spectrum compatibility (880nm-890nm range acceptable for most applications)
• Forward current rating: Substitute must support the application's required current draw without exceeding maximum ratings
• Forward voltage: Operating voltage must be compatible with existing circuit design
• Viewing angle: Beam divergence characteristics must match application requirements
• Package type: Through-hole T 1 3/4 form factor for mechanical and thermal compatibility
• Operating temperature range: Must encompass the application's thermal environment
• Compliance certifications: RoHS3 and REACH status must match or exceed the primary part

The QED123 qualifies as a substitute based on shared wavelength proximity (880nm vs 890nm), identical through-hole mounting configuration, matching temperature range, and equivalent compliance certifications. Differences in forward current (100mA vs 150mA) and viewing angle (18° vs 50°) require application-level verification to ensure functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the OP290C and QED123 maintain Active product status with identical RoHS3 and REACH compliance certifications, ensuring regulatory alignment for new designs and production continuity. The OP290C remains the primary selection when the application requires 150mA forward current capability and 50° viewing angle characteristics. The QED123 serves as a substitute when circuit design accommodates 100mA maximum current and narrower 18° beam divergence, with wavelength operation at 880nm instead of 890nm. Forward voltage differential (4V vs 1.7V) necessitates circuit-level compatibility assessment prior to substitution. Both components share identical operating temperature range and through-hole mounting methodology, supporting thermal and mechanical interchangeability at the package level.

Frequently Asked Questions (FAQ)

Q: Can QED123 directly replace OP290C in existing designs?

A: Direct replacement requires verification that the application circuit accommodates QED123's lower forward voltage (1.7V vs 4V), reduced maximum current (100mA vs 150mA), and narrower viewing angle (18° vs 50°). Wavelength difference (880nm vs 890nm) is within near-infrared spectrum tolerance for most applications.

Q: What are the primary differences between OP290C and QED123?

A: Key differences include forward voltage (4V vs 1.7V), maximum forward current (150mA vs 100mA), viewing angle (50° vs 18°), and wavelength (890nm vs 880nm). Both share identical operating temperature range, through-hole mounting type, and compliance certifications.

Q: Are both parts suitable for -40°C to 100°C operating environments?

A: Yes. Both OP290C and QED123 specify identical operating temperature range of -40°C to 100°C, ensuring thermal compatibility for applications within this range.

Q: What compliance certifications apply to both parts?

A: Both OP290C and QED123 are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Does package form factor differ between these parts?

A: Both components utilize through-hole T 1 3/4 packaging. QED123 specifies radial 5mm diameter configuration within the T 1 3/4 form factor, maintaining mechanical compatibility for standard through-hole PCB mounting.