SDP8611-001 Equivalent & Substitute Parts

Part Overview

The SDP8611-001 is an optical sensor manufactured by Honeywell Sensing and Productivity Solutions, classified as a photodetector with Schmitt logic output and side-looking configuration. This component operates at 935nm wavelength and provides open collector inverter output in a radial 3-lead package. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system redesign, legacy system maintenance, and component sourcing.

Substiute Parts

SDP8611-001

Honeywell Sensing and Productivity SolutionsIn Stock: 1216SDP8611-001 Datasheet

Current PartRFQ

OPL551-OC

TT Electronics / Optek TechnologyIn Stock: 4885OPL551-OC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SDP8611-001 is determined by strict alignment of the following critical parameters:

Wavelength Matching: The substitute part must operate at 935nm to maintain optical compatibility with existing infrared source and receiver circuits.

Sensor Type and Output Logic: The substitute must provide photo detector functionality with integrated logic output and open collector inverter configuration to ensure direct signal compatibility with downstream digital circuits.

Package Configuration: The substitute must feature side-view orientation and compatible lead configuration to allow physical integration into existing mechanical assemblies and PCB layouts.

Environmental Specifications: Operating temperature range of -40°C to 85°C and MSL rating of 1 (Unlimited) must be maintained to ensure reliability across specified environmental conditions.

Regulatory Compliance: RoHS and REACH compliance status must be equivalent or superior to support current manufacturing and supply chain requirements.

The OPL551-OC from TT Electronics / Optek Technology meets all these substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: OPL551-OC is the qualified equivalent for SDP8611-001 applications.

Rationale: The OPL551-OC maintains identical electrical specifications across all critical parameters: 935nm wavelength, photo detector with logic output, open collector inverter configuration, and -40°C to 85°C operating range. Both components share MSL 1 (Unlimited) rating and REACH Unaffected status. The OPL551-OC carries ROHS3 compliance, which exceeds the RoHS Compliant status of the obsolete SDP8611-001, ensuring compatibility with current regulatory requirements.

Product Status Advantage: The OPL551-OC maintains active product status with documented inventory availability (4804 pcs), providing long-term supply chain stability compared to the obsolete SDP8611-001.

Compliance Consideration: Both components carry EAR99 ECCN classification, maintaining consistent export control status for supply chain planning.

Frequently Asked Questions (FAQ)

Q: Can OPL551-OC directly replace SDP8611-001 in existing designs?

A: Yes. The OPL551-OC meets all critical electrical and environmental specifications of the SDP8611-001. Both components operate at 935nm wavelength with identical output logic (open collector inverter) and temperature range (-40°C to 85°C). Physical compatibility requires verification of lead configuration and mounting orientation in the specific application.

Q: What is the significance of the wavelength parameter in substitution?

A: Wavelength determines optical compatibility with infrared sources and receiver circuits. Both the SDP8611-001 and OPL551-OC operate at 935nm, ensuring the substitute will respond to the same infrared spectrum as the original component.

Q: Why is product status relevant to substitution?

A: The SDP8611-001 is obsolete, meaning Honeywell no longer manufactures or supports this component. The OPL551-OC is active, ensuring continued availability, technical support, and supply chain reliability for new production and legacy system maintenance.

Q: Are there differences in RoHS compliance between these parts?

A: The SDP8611-001 carries RoHS Compliant status, while the OPL551-OC carries ROHS3 Compliant status. ROHS3 represents a more current compliance standard and is fully compatible with applications requiring RoHS Compliant components.

Q: What does "open collector inverter" output mean for circuit integration?

A: Open collector inverter output means the component provides a logic signal that is inverted (low output when sensor is activated) and uses an open collector configuration, requiring an external pull-up resistor. Both the SDP8611-001 and OPL551-OC provide identical output behavior, ensuring direct compatibility with existing signal conditioning circuits.

Q: Is the side-view package orientation critical for substitution?

A: Yes. Side-view orientation determines the optical axis direction and mechanical mounting requirements. Both components feature side-view configuration, ensuring compatibility with existing optical path design and mechanical assembly.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component has minimal moisture sensitivity and does not require special moisture control during storage or handling. Both components share this rating, eliminating any moisture management differences during substitution.