SE1450-004L Infrared Emitter 935nm Equivalent & Substitute Parts

Part Overview

The SE1450-004L 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 SE1450-004L is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

SE1450-004L

Honeywell Sensing and Productivity SolutionsIn Stock: 4797SE1450-004L Datasheet

Current PartRFQ

OP165B

TT Electronics/Optek TechnologyIn Stock: 2836OP165B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SE1450-004L is determined by the following critical parameters:

Primary Matching Criteria:

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

Secondary Considerations:

• Viewing Angle: 24° (affects optical performance; narrower angles may limit application suitability)
• Operating Temperature Range: -55°C to 125°C (extended range preferred for reliability)
• Package Configuration: Coaxial metal can versus alternative through-hole packages (affects mechanical fit)
• Compliance Status: RoHS compliance required for regulated applications

The OP165B qualifies as a substitute based on matching wavelength (935nm), forward current (50mA), forward voltage (1.6V), and through-hole mounting. However, differences in viewing angle, temperature range, and package type must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

OP165B Substitution Suitability:

The OP165B is a viable substitute for the SE1450-004L based on electrical parameter alignment (wavelength, forward current, forward voltage) and compliance certifications (RoHS3 compliance exceeds RoHS requirements).

Constraints and Considerations:

1. Package Footprint: The OP165B uses a T-1 package, while the SE1450-004L uses a coaxial metal can package. PCB layout and mechanical mounting modifications are required.

2. Viewing Angle: The OP165B provides an 18° viewing angle compared to the SE1450-004L's 24° angle. Applications requiring the broader 24° optical coverage must verify that 18° meets performance specifications.

3. Operating Temperature Range: The OP165B operates from -40°C to 100°C, compared to the SE1450-004L's -55°C to 125°C range. Applications requiring extended temperature operation below -40°C or above 100°C must use the SE1450-004L or identify alternative parts with matching temperature specifications.

4. Product Status: The OP165B is actively manufactured, ensuring long-term availability and supply chain stability compared to the obsolete SE1450-004L.

5. Compliance: Both parts meet RoHS requirements. The OP165B's ROHS3 compliance aligns with current regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can the OP165B directly replace the SE1450-004L without circuit modifications?

A: The OP165B matches the SE1450-004L in electrical specifications (wavelength, forward current, forward voltage). However, the different package types (T-1 versus coaxial metal can) require PCB layout modifications. Circuit-level electrical compatibility is maintained.

Q: What is the impact of the 18° viewing angle on OP165B compared to the 24° angle of SE1450-004L?

A: The OP165B's narrower 18° viewing angle concentrates optical output over a smaller area. Applications requiring the broader 24° coverage pattern must verify that the reduced angle meets optical performance requirements. This is a critical consideration for wide-angle detection or illumination applications.

Q: Is the OP165B suitable for applications requiring operation below -40°C or above 100°C?

A: No. The OP165B's operating temperature range is -40°C to 100°C. Applications requiring the SE1450-004L's extended range (-55°C to 125°C) must either use the SE1450-004L or identify alternative parts with matching temperature specifications.

Q: Are there any compliance or certification differences between the two parts?

A: Both parts are RoHS compliant. The OP165B carries ROHS3 compliance, which represents current regulatory standards. Both parts have MSL 1 (Unlimited) moisture sensitivity ratings, indicating no special storage or handling requirements.

Q: What are the inventory implications of using the OP165B as a substitute?

A: The SE1450-004L is obsolete with limited remaining inventory. The OP165B is actively manufactured and maintained in stock, providing superior long-term supply chain availability and supporting ongoing production requirements.

Q: Does the OP165B require different circuit design considerations?

A: No. Both parts operate at 1.6V typical forward voltage and 50mA maximum forward current. Circuit design parameters remain unchanged. Only mechanical mounting and optical coverage patterns require evaluation.