OPB702R Equivalent & Substitute Parts

Part Overview

The OPB702R is a reflective optical sensor manufactured by TT Electronics/Optek Technology, designed for 0.150" (3.81mm) PCB mount applications. This component is classified as obsolete, making identification of suitable alternatives essential for ongoing production and maintenance requirements. The OPB702R functions as a phototransistor-based reflective sensor with through-hole mounting capability, suitable for applications requiring object detection at short sensing distances.

Substiute Parts

OPB702R

TT Electronics/Optek TechnologyIn Stock: 1034OPB702R Datasheet

Current PartRFQ

OPB702

TT Electronics/Optek TechnologyIn Stock: 3356OPB702 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPB702R is determined by strict alignment of the following critical parameters:

• Sensing Distance: 0.150" (3.81mm) — must match exactly
• Sensing Method: Reflective — must match exactly
• Mounting Type: Through Hole — must match exactly
• Package / Case: PCB Mount — must match exactly
• Operating Temperature Range: -40°C ~ 85°C — must match or exceed
• Current - DC Forward (If) (Max): 50 mA — substitute must meet or exceed
• Voltage - Collector Emitter Breakdown (Max): Substitute must meet or exceed the original specification

The OPB702 qualifies as a direct substitute based on these parameters. Both components share identical sensing distance, sensing method, mounting type, package configuration, and operating temperature range. The OPB702 provides enhanced voltage rating (30 V vs. 15 V) and maintains the same current specification, making it electrically compatible and suitable for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

The OPB702 is the manufacturer-recommended substitute for the obsolete OPB702R. Both components are manufactured by TT Electronics/Optek Technology and maintain identical mechanical and functional specifications for sensing distance, sensing method, mounting configuration, and operating temperature range.

The OPB702 offers improved electrical performance with a maximum collector-emitter breakdown voltage of 30 V compared to the OPB702R's 15 V rating, providing enhanced voltage margin in circuit designs. Current specifications remain equivalent at 50 mA maximum DC forward current.

Both components maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring compatibility with modern manufacturing and environmental standards. The OPB702 is currently in active production status with established supply availability, eliminating obsolescence concerns associated with the OPB702R.

Frequently Asked Questions (FAQ)

Q: Can the OPB702 directly replace the OPB702R in existing designs?

A: Yes. The OPB702 maintains identical sensing distance (0.150" / 3.81mm), reflective sensing method, through-hole mounting type, and PCB mount package configuration. Operating temperature range and current specifications are equivalent. The enhanced voltage rating of the OPB702 provides additional design margin without requiring circuit modification.

Q: What is the primary difference between OPB702R and OPB702?

A: The OPB702R is obsolete, while the OPB702 is in active production. The OPB702 provides a higher maximum collector-emitter breakdown voltage (30 V vs. 15 V), offering improved electrical robustness. Both components are functionally equivalent for reflective optical sensing applications at 0.150" distance.

Q: Are there any packaging differences between these components?

A: Both the OPB702R and OPB702 use identical PCB mount through-hole packaging. The OPB702 is available in bulk packaging, while the OPB702R was supplied in standard packaging. This difference does not affect component functionality or mechanical compatibility.

Q: Do both components meet current compliance requirements?

A: Yes. Both the OPB702R and OPB702 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. Both maintain MSL 1 (unlimited) moisture sensitivity level rating.

Q: What applications are suitable for these optical sensors?

A: These reflective optical sensors are designed for object detection, position sensing, and proximity detection applications requiring 0.150" (3.81mm) sensing distance. The through-hole PCB mount configuration supports integration into standard circuit board assemblies.