OPB854B3 Equivalent & Substitute Parts

Part Overview

The OPB854B3 is an optical sensor manufactured by TT Electronics/Optek Technology, designed as a through-beam phototransistor with PCB mount configuration. This component operates at a sensing distance of 0.100" (2.54mm) and is classified as an unamplified optical sensor. The OPB854B3 is currently listed as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and new design implementations where this sensor type is required.

Substiute Parts

OPB854B3

TT Electronics/Optek TechnologyIn Stock: 902OPB854B3 Datasheet

Current PartRFQ

OPB854A3

TT Electronics/Optek TechnologyIn Stock: 1432OPB854A3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPB854B3 is determined by strict equivalence across the following critical parameters:

• Sensing Distance: 0.100" (2.54mm) — optical path alignment requirement
• Sensing Method: Through-Beam — functional operating principle
• Output Configuration: Phototransistor — signal output type
• Current - Collector (Ic) (Max): 30 mA — electrical load capacity
• Voltage - Collector Emitter Breakdown (Max): 30 V — voltage rating
• Operating Temperature Range: -40°C ~ 85°C — thermal operating envelope
• Mounting Type: Through Hole — physical installation method
• Package / Case: PCB Mount — form factor compatibility

The OPB854A3 meets all these criteria as a parametric equivalent, maintaining identical electrical specifications and mechanical compatibility while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The OPB854A3 is the direct parametric equivalent for the obsolete OPB854B3. Both components share identical electrical ratings, thermal operating range, and mechanical mounting specifications. The primary distinction is product status: the OPB854B3 is obsolete while the OPB854A3 maintains active status with confirmed inventory availability.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications requiring environmental compliance. The OPB854A3 is suitable for direct substitution in existing designs or new implementations requiring through-beam optical sensing at 0.100" (2.54mm) distance with phototransistor output.

Frequently Asked Questions (FAQ)

Q: Can the OPB854A3 replace the OPB854B3 in existing designs?

A: Yes. The OPB854A3 is a parametric equivalent with identical electrical specifications, thermal range, and PCB mount configuration. No circuit modifications are required.

Q: What is the difference between OPB854B3 and OPB854A3?

A: Both components are manufactured by TT Electronics/Optek Technology and share identical specifications across all critical parameters. The OPB854B3 is obsolete; the OPB854A3 is active with available inventory.

Q: Are there packaging differences between these parts?

A: Both use PCB mount through-hole packaging. The OPB854A3 is available in bulk packaging, while the OPB854B3 packaging specification was not provided.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the OPB854B3 and OPB854A3 are ROHS3 compliant and REACH unaffected.

Q: What sensing distance do these optical sensors operate at?

A: Both components operate at a sensing distance of 0.100" (2.54mm) using through-beam sensing methodology.

Q: What is the maximum collector current rating?

A: Both parts have a maximum collector current (Ic) rating of 30 mA.

Q: What is the operating temperature range?

A: Both components operate across -40°C to 85°C.