SE3455-002 Infrared Emitter 935nm Equivalent & Substitute Parts

Part Overview

The SE3455-002 is an infrared (IR) emitter manufactured by Honeywell Sensing and Productivity Solutions, operating at 935nm wavelength with a maximum forward current of 100mA and typical forward voltage of 1.7V. The device is housed in a TO-46-2 metal can package with a 90° viewing angle, suitable for through-hole mounting applications across the temperature range of -55°C to 125°C.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this infrared emitter.

Substiute Parts

SE3455-002

Honeywell Sensing and Productivity SolutionsIn Stock: 2298SE3455-002 Datasheet

Current PartRFQ

OP130

TT Electronics/Optek TechnologyIn Stock: 1760OP130 Datasheet

SimilarRFQ

OP165W

TT Electronics/Optek TechnologyIn Stock: 1017OP165W Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for infrared emitters is determined by the following critical parameters: wavelength, maximum forward current rating, forward voltage characteristics, viewing angle, package type, and operating temperature range. Parts are considered substitutable when these parameters align within acceptable tolerances for the application circuit.

The SE3455-002 has two identified substitutes from TT Electronics/Optek Technology:

OP130: Shares the same wavelength (935nm), maximum forward current (100mA), similar forward voltage (1.75V), identical package type (TO-46-2 Metal Can), and overlapping operating temperature range. The primary difference is a narrower viewing angle (18° versus 90°).

OP165W: Shares the same wavelength (935nm) and viewing angle (90°), but operates at a reduced maximum forward current (50mA) and lower forward voltage (1.6V). The package type differs (T-1 versus TO-46-2 Metal Can), and the operating temperature range is narrower (-40°C ~ 100°C).

Parameter Comparison

Engineering Selection Recommendations

OP130 Selection Criteria: This substitute is the closest functional equivalent to the SE3455-002. It maintains identical wavelength, current rating, and package form factor. The forward voltage difference of 0.05V is within typical component tolerances. OP130 is currently in active production status with ROHS3 compliance certification. The primary design consideration is the reduced viewing angle (18° versus 90°), which affects the spatial distribution of infrared radiation. Selection of OP130 is appropriate for applications where the narrower beam angle is compatible with the optical system design.

OP165W Selection Criteria: This substitute shares the same wavelength and viewing angle as the main part but operates at half the maximum forward current (50mA versus 100mA). The forward voltage is 0.1V lower. OP165W is housed in a T-1 package rather than TO-46-2, requiring mechanical redesign of the mounting interface. The operating temperature range is narrower, limiting use in applications requiring the full -55°C to 125°C range. OP165W is suitable only for applications where the reduced current rating and modified package form factor are acceptable.

Both substitutes carry active product status and current compliance certifications (ROHS3), ensuring ongoing availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can OP130 be used as a direct replacement for SE3455-002 in all applications?

A: OP130 is functionally compatible for applications where the 18° viewing angle meets optical requirements. The narrower beam angle concentrates infrared radiation in a smaller spatial area compared to the 90° angle of the SE3455-002. Circuit-level compatibility is maintained due to matching wavelength, current rating, and forward voltage characteristics. Mechanical compatibility is preserved through identical TO-46-2 package specifications.

Q: What are the limitations of using OP165W as a substitute?

A: OP165W operates at 50mA maximum forward current, half that of the SE3455-002. Applications requiring 100mA operation cannot use this part without circuit redesign. The T-1 package differs from the TO-46-2 metal can, requiring modification of the mounting interface and PCB layout. The operating temperature range (-40°C ~ 100°C) is narrower than the original part, restricting use in extreme temperature environments.

Q: Are there package compatibility issues between the substitutes?

A: Yes. OP130 uses the TO-46-2 Lens Top Metal Can package, which is mechanically compatible with the original SE3455-002 TO-46-2 Metal Can package for through-hole mounting. OP165W uses the T-1 package, which has different physical dimensions and pin configuration, requiring PCB redesign and mechanical rework.

Q: Do the substitutes meet the same compliance standards as the original part?

A: Both OP130 and OP165W carry ROHS3 compliance certification, which supersedes the RoHS Compliant status of the SE3455-002. Both parts are classified as REACH Unaffected. Compliance requirements are met or exceeded by both substitutes.

Q: How do forward voltage differences affect circuit design?

A: The SE3455-002 has a typical forward voltage of 1.7V. OP130 operates at 1.75V (0.05V higher), and OP165W operates at 1.6V (0.1V lower). These variations affect the voltage drop across the emitter in series circuits. Circuit designs with current-limiting resistors will experience minor changes in actual forward current. For precision applications, resistor values may require adjustment to maintain target operating current.