OP169B Infrared Emitter - Equivalent & Substitute Parts

Part Overview

The OP169B is a Through Hole radial infrared (IR) emitter operating at 935nm wavelength, manufactured by TT Electronics/Optek Technology. This component is classified as Obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The OP169B delivers 50mA maximum forward current with a 1.4V typical forward voltage and 18° viewing angle, designed for applications requiring near-infrared emission in the 935nm spectrum.

Substiute Parts

OP169B

TT Electronics/Optek TechnologyIn Stock: 888OP169B Datasheet

Current PartRFQ

OP269A

TT Electronics/Optek TechnologyIn Stock: 1177OP269A Datasheet

MFR RecommendedRFQ

OP269A

TT Electronics/Optek TechnologyIn Stock: 1177OP269A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OP169B are identified based on the following critical parameters that determine functional compatibility:

• Mounting Type: Through Hole radial configuration
• Package / Case: Radial form factor
• Current Rating: 50mA maximum forward current
• Operating Temperature Range: -40°C ~ 100°C
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

The OP269A is identified as a manufacturer-recommended substitute. While the OP269A operates at a different wavelength (890nm versus 935nm) and exhibits different electrical characteristics (1.5V forward voltage, 0.58mW/cm² radiant intensity), it maintains identical mounting configuration, current rating, temperature range, and compliance certifications. The wavelength difference represents a shift within the near-infrared spectrum and must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The OP269A is the manufacturer-recommended substitute for the obsolete OP169B. Both components maintain identical compliance certifications (ROHS3 Compliant, REACH Unaffected) and share the same mechanical form factor (Through Hole radial package). The OP269A is currently in Active product status, ensuring ongoing availability and supply chain continuity.

Key differences between the parts are wavelength (890nm versus 935nm) and radiant intensity (0.58mW/cm² versus 0.11mW/cm²). These electrical and optical characteristics must be evaluated against application-specific requirements, particularly in systems where wavelength-dependent sensor response or optical filtering is employed.

Frequently Asked Questions (FAQ)

Q: Can the OP269A directly replace the OP169B in existing designs?

A: The OP269A shares identical mounting configuration (Through Hole radial), current rating (50mA), temperature range (-40°C ~ 100°C), and compliance certifications with the OP169B. However, the wavelength difference (890nm versus 935nm) and increased radiant intensity (0.58mW/cm² versus 0.11mW/cm²) require evaluation against application-specific optical and sensor requirements.

Q: What is the primary reason for substitution?

A: The OP169B is classified as Obsolete. The OP269A is the manufacturer-recommended substitute and maintains Active product status, ensuring continued availability and supply chain support.

Q: Are there any compliance or regulatory differences between these parts?

A: Both the OP169B and OP269A are ROHS3 Compliant and REACH Unaffected. No compliance or regulatory differences exist between these components.

Q: How do the electrical characteristics differ?

A: The OP269A operates at 1.5V typical forward voltage compared to the OP169B at 1.4V. The OP269A also exhibits higher radiant intensity at 0.58mW/cm² versus 0.11mW/cm² (both measured at 20mA). Maximum forward current remains identical at 50mA for both parts.

Q: Are the packages identical?

A: Yes. Both the OP169B and OP269A use Through Hole radial packaging with identical mechanical form factors and mounting configurations.