OPB705 Equivalent & Substitute Parts

Part Overview

The OPB705 is an optical sensor with PCB mount packaging designed for slot-type sensing applications. Manufactured by onsemi, this component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and component procurement. The OPB704, manufactured by TT Electronics / Optek Technology, serves as a direct substitute offering active product status with reflective sensing capability and improved compliance posture.

Substiute Parts

OPB705

onsemiIn Stock: 877OPB705 Datasheet

Current PartRFQ

OPB704

TT Electronics / Optek TechnologyIn Stock: 1755OPB704 Datasheet

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OPB705

onsemiIn Stock: 877OPB705 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPB705 is determined by the following critical parameters:

• Mounting Type: Through Hole configuration required for PCB integration
• Package / Case: PCB Mount form factor for mechanical compatibility
• Category: Optical Sensors classification for functional equivalence
• Electrical Characteristics: Output type and current ratings for circuit compatibility
• Compliance Status: RoHS and REACH certifications for regulatory alignment

The OPB704 qualifies as a substitute based on matching mounting type (Through Hole), package configuration (PCB Mount), and optical sensor category. The OPB704 provides reflective sensing at 0.149" (3.8mm) distance with phototransistor output, establishing functional equivalence for slot-type sensing applications. Additionally, the OPB704 maintains active product status and achieves ROHS3 compliance, addressing the obsolescence and compliance limitations of the OPB705.

Parameter Comparison

Engineering Selection Recommendations

The OPB704 is the designated substitute for the obsolete OPB705. Selection of the OPB704 addresses two primary engineering constraints:

1. Product Lifecycle: The OPB705 is obsolete, limiting long-term procurement viability. The OPB704 maintains active product status, ensuring supply chain continuity.

2. Regulatory Compliance: The OPB704 achieves ROHS3 compliance, whereas the OPB705 is RoHS non-compliant. For applications subject to RoHS directives, the OPB704 satisfies regulatory requirements.

Both components share identical MSL ratings, REACH status, ECCN classification, and HTSUS codes, confirming compatibility across environmental and export control parameters. The OPB704 provides specified electrical characteristics (30 V collector-emitter breakdown, 25 mA maximum collector current, 40 mA maximum forward current) and reflective sensing at 0.149" distance, establishing functional equivalence for optical sensing applications requiring Through Hole PCB Mount configuration.

Frequently Asked Questions (FAQ)

Q: What are the primary reasons for substituting OPB705 with OPB704?

A: The OPB705 is obsolete, creating procurement challenges. The OPB704 is an active product offering ROHS3 compliance, addressing both supply availability and regulatory requirements while maintaining compatible mounting and package specifications.

Q: Are the mounting configurations identical between OPB705 and OPB704?

A: Yes. Both components use Through Hole mounting type with PCB Mount package configuration, ensuring mechanical compatibility in existing PCB layouts.

Q: What electrical parameters define the OPB704 substitute?

A: The OPB704 specifies 30 V maximum collector-emitter breakdown voltage, 25 mA maximum collector current, and 40 mA maximum DC forward current. These parameters establish the electrical operating envelope for circuit design.

Q: Does the OPB704 provide the same sensing distance as the OPB705?

A: The OPB704 specifies 0.149" (3.8mm) reflective sensing distance. The OPB705 sensing distance is not provided in available documentation. Circuit validation is required to confirm distance compatibility with application requirements.

Q: Are environmental and compliance ratings equivalent?

A: Both components share MSL 1 (Unlimited), REACH Unaffected status, EAR99 ECCN classification, and 8541.49.8000 HTSUS code. The OPB704 provides superior RoHS compliance (ROHS3 vs. non-compliant), benefiting regulatory alignment.

Q: What is the output type of the OPB704?

A: The OPB704 uses phototransistor output with reflective sensing method, providing active optical detection suitable for slot-type and reflective sensing applications.