OPL561A Equivalent & Substitute Parts

Part Overview

The OPL561A is an optical sensor from the Photologic® series manufactured by TT Electronics/Optek Technology. It functions as a 935nm photo detector with logic output, featuring push-pull output configuration in a 3-SIP side view package. The OPL561A is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. The availability of active alternative parts ensures continuity for applications requiring equivalent optical sensing functionality.

Substiute Parts

OPL561A

TT Electronics/Optek TechnologyIn Stock: 1167OPL561A Datasheet

Current PartRFQ

OPL561

TT Electronics/Optek TechnologyIn Stock: 877OPL561 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the OPL561A is determined by strict alignment of the following critical parameters:

• Wavelength: 935nm infrared detection capability
• Type: Photo detector with integrated logic output
• Output Type: Push-pull configuration
• Package / Case: 3-SIP side view form factor
• Operating Temperature Range: -40°C to 85°C
• RoHS and REACH Compliance: ROHS3 Compliant, REACH Unaffected

The OPL561 (without the "A" suffix) qualifies as a direct substitute, maintaining identical electrical and mechanical specifications while offering active product status and improved availability. Both components share the same Photologic® series designation and are manufactured by the same supplier.

Parameter Comparison

Engineering Selection Recommendations

The OPL561 is the primary substitute for the obsolete OPL561A. Both components maintain identical functional and mechanical specifications across all critical parameters. The OPL561 offers the advantage of active product status, ensuring ongoing availability and manufacturing support. Both parts satisfy ROHS3 compliance and REACH requirements, making them suitable for applications with environmental and regulatory constraints. Selection between these components should be based on inventory availability and supply chain considerations, as electrical and mechanical compatibility is complete.

Frequently Asked Questions (FAQ)

Q: Can the OPL561 directly replace the OPL561A in existing designs?

A: Yes. The OPL561 maintains identical wavelength (935nm), output type (push-pull), package configuration (3-SIP side view), and operating temperature range (-40°C to 85°C). Direct substitution is supported without circuit modification.

Q: What is the significance of the "A" suffix in OPL561A?

A: The "A" suffix designates a specific product variant or manufacturing revision. The OPL561 (without suffix) represents the current active production version with equivalent electrical and mechanical characteristics.

Q: Are there compliance differences between OPL561A and OPL561?

A: No. Both components are ROHS3 compliant and REACH unaffected, with identical moisture sensitivity levels (MSL 1, unlimited). Compliance status is equivalent.

Q: What packaging options are available for the OPL561?

A: The OPL561 is supplied in bulk packaging, while the OPL561A was supplied in standard packaging. The component itself maintains the 3-SIP side view form factor in both cases.

Q: Why is the OPL561A classified as obsolete?

A: Obsolescence reflects the manufacturer's discontinuation of this specific part number variant. The OPL561 remains in active production, providing continuity for applications requiring equivalent 935nm photo detector functionality with logic output.