OPB741W Equivalent & Substitute Parts

Part Overview

The OPB741W is a reflective optical sensor manufactured by TT Electronics/Optek Technology, designed for applications requiring non-contact object detection at a sensing distance of 0.150" (3.81mm). This component features a phototransistor output and is supplied as a pre-wired chassis mount module.

The OPB741W is classified as obsolete. Locating direct replacements from current inventory requires identifying substitute parts that maintain electrical and mechanical compatibility with the original specification.

Substiute Parts

OPB741W

TT Electronics/Optek TechnologyIn Stock: 1000OPB741W Datasheet

Current PartRFQ

OPB741WZ

TT Electronics/Optek TechnologyIn Stock: 1575OPB741WZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPB741W is determined by matching the following critical parameters:

• Sensing Distance: 0.150" (3.81mm)
• Sensing Method: Reflective
• Output Type: Phototransistor
• Voltage - Collector Emitter Breakdown (Max): 30 V
• Current - DC Forward (If) (Max): 40 mA
• Mounting Type: Chassis Mount
• Package / Case: Module, Pre-Wired
• Operating Temperature Range: -40°C ~ 80°C

The OPB741WZ meets all these parameters and is available from the same manufacturer with active product status.

Parameter Comparison

Engineering Selection Recommendations

The OPB741WZ is the direct substitute for the OPB741W. Both components share identical electrical and mechanical specifications, including sensing distance, output type, voltage ratings, and operating temperature range.

The OPB741WZ offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, the OPB741WZ is ROHS3 compliant, whereas the OPB741W is RoHS non-compliant. For applications subject to RoHS requirements, the OPB741WZ is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the OPB741WZ directly replace the OPB741W?

A: Yes. The OPB741WZ is electrically and mechanically identical to the OPB741W. Both components feature the same sensing distance (0.150"), sensing method (reflective), output type (phototransistor), voltage ratings (30 V max), current ratings (40 mA max), mounting configuration (chassis mount), and operating temperature range (-40°C ~ 80°C).

Q: What is the difference between OPB741W and OPB741WZ?

A: The primary differences are product status and regulatory compliance. The OPB741W is obsolete and RoHS non-compliant. The OPB741WZ is active and ROHS3 compliant. The OPB741WZ is supplied in bulk packaging, whereas packaging information for the OPB741W is not specified.

Q: Are there any compatibility concerns when substituting OPB741W with OPB741WZ?

A: No compatibility concerns exist. The components are functionally equivalent across all specified electrical and mechanical parameters. Both are pre-wired chassis mount modules with identical sensing characteristics.

Q: Should RoHS compliance influence the selection between these parts?

A: RoHS compliance should be considered based on application requirements and regulatory obligations. The OPB741WZ is ROHS3 compliant, making it suitable for applications subject to RoHS directives. The OPB741W is RoHS non-compliant and should be selected only when RoHS compliance is not a requirement.