OPB742W Equivalent & Substitute Parts

Part Overview

The OPB742W is a reflective optical sensor manufactured by TT Electronics/Optek Technology, designed for 0.150" (3.81mm) sensing distance applications. This component features a phototransistor output and chassis mount configuration with pre-wired module packaging. The OPB742W is currently classified as obsolete, making identification of suitable substitute components essential for ongoing production and maintenance applications.

Substiute Parts

OPB742W

TT Electronics/Optek TechnologyIn Stock: 913OPB742W Datasheet

Current PartRFQ

OPB742WZ

TT Electronics/Optek TechnologyIn Stock: 1263OPB742WZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the OPB742W are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following key criteria:

• Sensing Distance: Must match 0.150" (3.81mm) to ensure proper optical alignment and detection range
• Sensing Method: Must be reflective to maintain functional compatibility
• Output Type: Must be phototransistor for circuit-level compatibility
• Voltage Rating: Collector Emitter Breakdown voltage must be 30 V or greater
• Current Rating: DC Forward current must support 40 mA maximum
• Mounting Configuration: Must be chassis mount with pre-wired module packaging
• Operating Temperature: Must support -40°C ~ 80°C range
• Moisture Sensitivity: MSL 1 (Unlimited) classification

The OPB742WZ meets all these criteria and is classified as an active product, making it a direct substitute for the obsolete OPB742W.

Parameter Comparison

Engineering Selection Recommendations

The OPB742WZ is the direct substitute for the obsolete OPB742W. Both components share identical electrical specifications and mechanical configurations across all critical parameters. The primary distinction is product status and regulatory compliance: the OPB742WZ is an active product with ROHS3 compliance, whereas the OPB742W is obsolete and RoHS non-compliant.

For new designs and ongoing production requiring reflective optical sensing at 0.150" (3.81mm) distance with phototransistor output, the OPB742WZ provides continuity of supply and improved regulatory alignment. The OPB742WZ is available in bulk packaging with 1224 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the OPB742WZ directly replace the OPB742W in existing applications?

A: Yes. The OPB742WZ is electrically and mechanically equivalent to the OPB742W across all specified parameters, including sensing distance, output type, voltage and current ratings, mounting configuration, and operating temperature range.

Q: What is the difference between OPB742W and OPB742WZ?

A: The OPB742W is obsolete, while the OPB742WZ is an active product. The OPB742WZ also carries ROHS3 compliance, whereas the OPB742W is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: The OPB742W packaging is unspecified in available documentation. The OPB742WZ is supplied in bulk packaging. Both maintain the same Module, Pre-Wired case configuration for chassis mount applications.

Q: What parameters must match for optical sensor substitution?

A: Critical parameters include sensing distance (0.150"), sensing method (reflective), output type (phototransistor), voltage rating (30 V), current rating (40 mA), mounting type (chassis mount), and operating temperature range (-40°C ~ 80°C).

Q: Is the OPB742WZ suitable for new product designs?

A: Yes. The OPB742WZ is an active product with ROHS3 compliance, making it appropriate for new designs requiring reflective optical sensing at 3.81mm distance with phototransistor output.