SE1450-002L Infrared Emitter 935nm Equivalent & Substitute Parts

Part Overview

The SE1450-002L is an infrared (IR) emitter manufactured by Honeywell Sensing and Productivity Solutions, designed for 935nm wavelength applications requiring 50mA forward current operation. This component features a coaxial metal can package with a 24° viewing angle and operates across the temperature range of -55°C to 125°C. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new design implementations.

Substiute Parts

SE1450-002L

Honeywell Sensing and Productivity SolutionsIn Stock: 820SE1450-002L Datasheet

Current PartRFQ

OP165D

TT Electronics/Optek TechnologyIn Stock: 1060OP165D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SE1450-002L is determined by the following critical parameters:

Primary Matching Criteria:

• Wavelength: 935nm (exact match required)
• Forward Current Rating: 50mA (maximum rating must equal or exceed)
• Forward Voltage: 1.6V typical (must be compatible with circuit design)
• Mounting Type: Through Hole (mechanical compatibility)

Secondary Considerations:

• Viewing Angle: 24° (optical beam pattern; narrower angles acceptable in most applications)
• Operating Temperature Range: -55°C to 125°C (substitute must cover application requirements)
• Package Configuration: Coaxial metal can or equivalent through-hole package

The OP165D from TT Electronics/Optek Technology meets the primary electrical matching criteria with identical wavelength (935nm), forward current rating (50mA), and forward voltage (1.6V). Both components utilize through-hole mounting technology. Differences in viewing angle (18° vs 24°) and operating temperature range (-40°C to 100°C vs -55°C to 125°C) represent design trade-offs requiring application-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

SE1450-002L Status: Obsolete product with 760 units available in current inventory. Continued reliance on this component for new designs is not recommended due to discontinued manufacturing status.

OP165D Recommendation: The OP165D represents the primary equivalent substitute, offering active product status with 973 units in inventory. This component maintains electrical compatibility across all critical parameters: 935nm wavelength, 50mA forward current rating, and 1.6V forward voltage. Both components achieve identical RoHS compliance certifications and unlimited moisture sensitivity ratings.

Design Considerations: The OP165D operates within a narrower temperature range (-40°C to 100°C) compared to the SE1450-002L (-55°C to 125°C). Applications requiring operation below -40°C or above 100°C must evaluate alternative solutions. The OP165D features an 18° viewing angle versus the SE1450-002L's 24° angle; optical system designs must account for this reduced beam divergence. Package geometry differs (T-1 versus coaxial metal can), requiring mechanical redesign of mounting fixtures and PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the OP165D directly replace the SE1450-002L without circuit modifications?

A: Electrical circuit compatibility is confirmed. Both components operate at 1.6V forward voltage and 50mA maximum current with identical 935nm wavelength output. Physical mounting and optical beam pattern require mechanical redesign due to package type and viewing angle differences.

Q: What is the impact of the 18° versus 24° viewing angle difference?

A: The OP165D's narrower 18° viewing angle concentrates infrared output into a tighter beam pattern compared to the SE1450-002L's 24° angle. Applications requiring wide-angle detection must verify optical system performance. Narrower beam angles typically increase radiant intensity at the optical axis.

Q: Are there temperature range limitations with the OP165D?

A: The OP165D operates from -40°C to 100°C, which is narrower than the SE1450-002L's -55°C to 125°C range. Applications requiring operation below -40°C or above 100°C cannot use the OP165D and require alternative component evaluation.

Q: Do both components meet current environmental compliance standards?

A: Yes. The SE1450-002L is RoHS Compliant, and the OP165D is ROHS3 Compliant. Both components carry unlimited moisture sensitivity ratings (MSL 1). The OP165D additionally carries REACH Unaffected status.

Q: What are the package differences between these components?

A: The SE1450-002L uses a coaxial metal can package, while the OP165D uses a T-1 package. These represent different through-hole form factors requiring distinct PCB footprints and mechanical mounting approaches. Existing designs using the SE1450-002L require layout modifications to accommodate the OP165D.

Q: Is the OP165D suitable for new product designs?

A: Yes. The OP165D carries active product status with established supply availability. New designs should incorporate the OP165D to ensure long-term component availability and manufacturing support.