OPB771T Equivalent & Substitute Parts

Part Overview

The OPB771T is a reflective optical sensor manufactured by TT Electronics/Optek Technology, designed for detecting objects using infrared light reflection. This sensor operates with Kodak® Paper as the sensing object and features NPN open collector output configuration. The OPB771T is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

OPB771T

TT Electronics/Optek TechnologyIn Stock: 1201OPB771T Datasheet

Current PartRFQ

OPB771TZ

TT Electronics/Optek TechnologyIn Stock: 982OPB771TZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPB771T is determined by strict equivalence across the following critical parameters:

• Sensing distance range: 0.080" ~ 0.220" (2.03mm ~ 5.59mm)
• Sensing method: Reflective
• Sensing object: Kodak® Paper
• Output configuration: NPN - Open Collector
• Supply voltage: 4.75V ~ 5.25V
• Supply current: 10 mA
• Sensing light: Infrared

The OPB771TZ qualifies as a direct substitute based on identical electrical specifications and sensing characteristics. Differences in mounting type (Through Hole versus Chassis Mount) and product status do not affect functional equivalence for reflective optical sensing applications.

Parameter Comparison

Engineering Selection Recommendations

The OPB771TZ is the direct equivalent substitute for the obsolete OPB771T. Both components share identical electrical and optical specifications, ensuring functional compatibility in reflective optical sensing applications. The OPB771TZ offers the advantage of active product status, ensuring continued availability and supply chain reliability.

The OPB771TZ achieves ROHS3 compliance, whereas the OPB771T is non-compliant. This distinction is significant for applications subject to regulatory requirements. Both components maintain identical moisture sensitivity levels and REACH status.

Mounting type differs between the two parts (Through Hole versus Chassis Mount). This difference requires mechanical design consideration during component integration but does not affect electrical or optical performance.

Frequently Asked Questions (FAQ)

Q: Can OPB771TZ directly replace OPB771T in existing designs?

A: Yes. The OPB771TZ provides electrical and optical equivalence to the OPB771T. Mounting type differences require mechanical design adjustment but do not affect sensor functionality.

Q: What is the significance of the product status difference?

A: The OPB771T is classified as obsolete, indicating discontinued manufacturing. The OPB771TZ maintains active status, ensuring ongoing availability and supply chain support.

Q: Are there compliance differences between these parts?

A: The OPB771TZ is ROHS3 compliant, while the OPB771T is non-compliant. Both maintain identical REACH status. Compliance requirements should be evaluated based on application and regulatory jurisdiction.

Q: Do mounting type differences affect sensor performance?

A: Mounting type (Through Hole versus Chassis Mount) affects mechanical integration only. Optical and electrical performance remain identical across both configurations.

Q: What parameters must remain constant for substitution?

A: Sensing distance, sensing method, sensing object, output configuration, supply voltage, supply current, and sensing light wavelength must all remain constant for functional equivalence.