OPB608C Equivalent & Substitute Parts

Part Overview

The OPB608C is a reflective optical sensor manufactured by TT Electronics/Optek Technology, designed for PCB mount applications with a 0.050" (1.27mm) sensing distance. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing production and maintenance applications. The OPB608C functions as a phototransistor-based optical sensor suitable for reflective sensing applications requiring through-hole mounting on printed circuit boards.

Substiute Parts

OPB608C

TT Electronics/Optek TechnologyIn Stock: 909OPB608C Datasheet

Current PartRFQ

OPB608A

TT Electronics / Optek TechnologyIn Stock: 1871OPB608A Datasheet

DirectRFQ

OPB608B

TT Electronics/Optek TechnologyIn Stock: 6389OPB608B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OPB608C are identified based on strict electrical and mechanical parameter matching within the OPB608 series. The substitution logic is based on the following critical parameters:

• Sensing distance: 0.050" (1.27mm)
• Sensing method: Reflective
• Output type: Phototransistor
• Voltage rating: 30 V maximum collector-emitter breakdown
• Current ratings: 25 mA maximum collector current, 50 mA maximum DC forward current
• Mounting configuration: Through-hole PCB mount
• Operating temperature range: -40°C to 85°C
• Regulatory compliance: ROHS3 compliant, REACH unaffected

The OPB608A and OPB608B are direct equivalents within the same product family, sharing identical electrical specifications and mechanical form factors. Both parts are currently in active production status, distinguishing them from the obsolete OPB608C.

Parameter Comparison

Engineering Selection Recommendations

Both OPB608A and OPB608B are suitable replacements for the obsolete OPB608C based on complete electrical and mechanical parameter equivalence. The OPB608B is designated as the manufacturer-recommended substitute and maintains the highest current inventory availability at 6298 pieces. The OPB608A is classified as a direct equivalent with 1819 pieces in stock. Both parts carry identical regulatory certifications: ROHS3 compliance and REACH unaffected status. Selection between OPB608A and OPB608B should be based on packaging requirements and inventory availability, as both parts are functionally interchangeable within the specified electrical and thermal operating parameters.

Frequently Asked Questions (FAQ)

Q: Are OPB608A and OPB608B electrically identical to OPB608C?

A: Yes. All three parts share identical electrical specifications including 30 V maximum collector-emitter breakdown voltage, 25 mA maximum collector current, and 50 mA maximum DC forward current. They operate across the same temperature range of -40°C to 85°C.

Q: What is the primary difference between OPB608A and OPB608B?

A: Both parts are electrically and mechanically equivalent. The OPB608B is the manufacturer-recommended substitute with higher inventory availability. Packaging is specified as bulk for both variants.

Q: Can OPB608A or OPB608B be used as direct drop-in replacements for OPB608C?

A: Yes. Both parts feature identical through-hole PCB mount configurations, sensing distance of 0.050" (1.27mm), and reflective sensing methodology. No circuit modifications are required.

Q: Are there any compliance or regulatory differences between these parts?

A: No. All three parts maintain ROHS3 compliance and REACH unaffected status. Moisture sensitivity level is 1 (unlimited) for all variants.

Q: Which substitute part should be selected for new designs?

A: Either OPB608A or OPB608B is appropriate for new designs. Both are active production parts. Selection should be based on packaging preferences and supplier inventory availability.