SDP8614-301 Equivalent & Substitute Parts

Part Overview

The SDP8614-301 is a 935nm optical photo detector with logic output and open collector inverter configuration, manufactured by Honeywell Sensing and Productivity Solutions. This component operates across the industrial temperature range of -40°C to 85°C and features radial, 3-lead side-view packaging. The product is classified as obsolete, making identification of functionally equivalent substitute components essential for design continuity and procurement planning. Substitute parts must maintain compatibility across wavelength specification, output logic type, operating temperature range, and environmental compliance certifications.

Substiute Parts

SDP8614-301

Honeywell Sensing and Productivity SolutionsIn Stock: 3419SDP8614-301 Datasheet

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OPL530

TT Electronics / Optek TechnologyIn Stock: 1862OPL530 Datasheet

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OPL550

TT Electronics/Optek TechnologyIn Stock: 2895OPL550 Datasheet

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OPL550-OCA

TT Electronics/Optek TechnologyIn Stock: 1495OPL550-OCA Datasheet

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OPL550A

TT Electronics/Optek TechnologyIn Stock: 1653OPL550A Datasheet

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OPL551

TT Electronics/Optek TechnologyIn Stock: 1952OPL551 Datasheet

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OPL551-OC

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

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OPL551-OCA

TT Electronics/Optek TechnologyIn Stock: 1013OPL551-OCA Datasheet

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OPL560

TT Electronics/Optek TechnologyIn Stock: 890OPL560 Datasheet

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OPL560A

TT Electronics/Optek TechnologyIn Stock: 1084OPL560A Datasheet

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OPL561

TT Electronics/Optek TechnologyIn Stock: 877OPL561 Datasheet

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OPL561-OC

TT Electronics/Optek TechnologyIn Stock: 784OPL561-OC Datasheet

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OPL562

TT Electronics/Optek TechnologyIn Stock: 9616OPL562 Datasheet

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OPL563

TT Electronics/Optek TechnologyIn Stock: 2963OPL563 Datasheet

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QSE159

onsemiIn Stock: 1149QSE159 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SDP8614-301 are identified based on strict alignment with the following critical parameters:

Primary Matching Criteria:

• Wavelength: 935nm (exact match required)
• Component Type: Photo Detector, Logic Output (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Environmental Compliance: RoHS3 Compliant and REACH Unaffected (equivalent or superior status)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Output Type Substitution Logic: The SDP8614-301 features Open Collector Inverter output. Direct substitutes with identical output type are OPL550-OCA and OPL551-OC/OPL551-OCA. Additional substitutes with alternative output configurations (Push-Pull or NPN) are listed for applications where output logic inversion and collector type differences can be accommodated through circuit design modifications.

Package Consideration: The main part uses Radial, 3 Lead, Side View packaging. Substitute parts employ either identical Side View configuration or 3-SIP Side View packaging, both maintaining side-looking optical geometry required for this application class.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

OPL551-OC and OPL551-OCA are the preferred substitutes for the SDP8614-301. Both parts maintain identical output type (Open Collector Inverter), wavelength (935nm), operating temperature range (-40°C ~ 85°C), and environmental compliance certifications. These components are manufactured by TT Electronics/Optek Technology and carry Active product status with ROHS3 Compliant and REACH Unaffected designations, providing superior long-term availability and supply chain stability compared to the obsolete SDP8614-301.

Secondary Substitutes (Output Type Variation):

OPL550-OCA provides Open Collector output (non-inverting logic) while maintaining all other critical parameters. This substitute is suitable for applications where inverting logic can be accommodated through circuit design or where the application logic permits non-inverting output operation.

OPL530, OPL550, OPL550A, OPL551, OPL560, OPL560A, and OPL561 offer Push-Pull or NPN output configurations. These parts maintain wavelength, temperature range, and compliance specifications but require circuit-level modifications to accommodate different output logic types and drive characteristics.

Compliance and Availability:

All substitute parts exceed the RoHS compliance status of the original component (ROHS3 Compliant versus RoHS Compliant) and maintain REACH Unaffected status. All substitutes are classified as Active products with confirmed inventory availability, eliminating obsolescence risk associated with the SDP8614-301.

Frequently Asked Questions (FAQ)

Q: Can OPL550-OCA directly replace SDP8614-301 in all applications?

A: OPL550-OCA matches the SDP8614-301 across wavelength (935nm), operating temperature (-40°C ~ 85°C), package side-view geometry, and environmental compliance. The primary difference is output type: OPL550-OCA provides Open Collector (non-inverting) output, while SDP8614-301 provides Open Collector Inverter output. Direct substitution is possible only in applications where the logic inversion difference can be accommodated through circuit design or where the application logic permits non-inverting operation.

Q: What is the difference between OPL551-OC and OPL551-OCA?

A: Both OPL551-OC and OPL551-OCA provide identical electrical specifications: 935nm wavelength, Open Collector Inverter output, -40°C ~ 85°C operating temperature, and side-view packaging. The suffix "-OCA" indicates a variant designation within the OPL551 product line. Both are functionally equivalent substitutes for the SDP8614-301 and can be selected based on availability or procurement preference.

Q: Why do some substitutes use 3-SIP packaging instead of radial 3-lead?

A: OPL560, OPL560A, OPL561, and OPL561-OC employ 3-SIP (Single In-line Package) side-view configuration rather than radial 3-lead packaging. Both package types maintain side-looking optical geometry required for this application class. Selection between radial and 3-SIP packaging depends on circuit board layout compatibility and mechanical mounting requirements. Electrical performance and optical characteristics remain equivalent.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts carry ROHS3 Compliant certification, which exceeds the RoHS Compliant status of the original SDP8614-301. All substitutes also maintain REACH Unaffected status, ensuring compliance with current environmental regulations.

Q: What is the significance of the "-OC" and "-OCA" suffixes in part numbers?

A: The "-OC" suffix designates Open Collector output configuration. The "-OCA" suffix indicates an Open Collector Inverter variant. For the SDP8614-301 replacement, OPL551-OC and OPL551-OCA both provide Open Collector Inverter output (matching the original), while OPL550-OCA provides Open Collector non-inverting output. The suffix directly indicates the output logic type and inversion characteristic.

Q: Can OPL530 replace SDP8614-301?

A: OPL530 matches the SDP8614-301 across wavelength (935nm), operating temperature (-40°C ~ 85°C), and environmental compliance. However, OPL530 provides NPN output type and uses 3-SIP side-view packaging, whereas SDP8614-301 provides Open Collector Inverter output with radial 3-lead packaging. Substitution requires circuit-level modifications to accommodate NPN output characteristics and package geometry differences.

Q: What inventory availability should be expected for substitute parts?

A: All substitute parts are classified as Active products with confirmed inventory: OPL550-OCA (1,387 pcs), OPL551-OC (4,804 pcs), OPL551-OCA (970 pcs), OPL530 (1,817 pcs), OPL550 (2,875 pcs), OPL550A (1,628 pcs), OPL551 (1,931 pcs), OPL560 (832 pcs), OPL560A (1,049 pcs), and OPL561 (797 pcs). Active product status ensures long-term availability and supply chain continuity.