OPB802L55 Equivalent & Substitute Parts

Part Overview

The OPB802L55 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 0.375" (9.53mm) and is classified as an unamplified optical sensor. The part is currently active in production with 1075 units in stock. Equivalent and substitute parts become necessary when addressing supply chain constraints, inventory availability, or design flexibility requirements while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

OPB802L55

TT Electronics/Optek TechnologyIn Stock: 1155OPB802L55 Datasheet

Current PartRFQ

OPB800L51

TT Electronics/Optek TechnologyIn Stock: 15392OPB800L51 Datasheet

Parametric EquivalentRFQ

OPB800L55

TT Electronics/Optek TechnologyIn Stock: 3361OPB800L55 Datasheet

Parametric EquivalentRFQ

OPB810L51

TT Electronics/Optek TechnologyIn Stock: 2944OPB810L51 Datasheet

Parametric EquivalentRFQ

OPB811L55

TT Electronics/Optek TechnologyIn Stock: 1513OPB811L55 Datasheet

Parametric EquivalentRFQ

OPB810L55

TT Electronics/Optek TechnologyIn Stock: 709OPB810L55 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OPB802L55 are qualified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Sensing Distance: 0.375" (9.53mm)
• Sensing Method: Through-Beam
• Output Configuration: Phototransistor
• Current - DC Forward (If) (Max): 50 mA
• Current - Collector (Ic) (Max): 30 mA
• Voltage - Collector Emitter Breakdown (Max): 30 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: PCB Mount
• Type: Unamplified
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

All substitute parts listed maintain these exact specifications, ensuring direct functional and mechanical compatibility with the OPB802L55 in PCB-mounted through-beam optical sensing applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain full parametric equivalence with the OPB802L55 across electrical specifications, operating conditions, and compliance certifications. Selection among active alternatives should prioritize inventory availability and product status.

OPB800L51 and OPB800L55 offer the highest inventory levels (15304 and 3345 units respectively) and maintain active product status, making them preferred selections for new designs and high-volume applications.

OPB810L51 and OPB811L55 are active alternatives with moderate inventory availability (2836 and 1457 units respectively), suitable for applications where supply chain flexibility is required.

OPB810L55 is classified as obsolete and carries the lowest inventory (644 units). While electrically and mechanically equivalent, this part should be avoided for new designs due to its discontinued status.

All active alternatives carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

Frequently Asked Questions (FAQ)

Q: Can OPB800L51 be used as a direct replacement for OPB802L55?

A: Yes. OPB800L51 maintains identical electrical specifications (50 mA DC forward current, 30 mA collector current, 30 V breakdown voltage), operating temperature range (-40°C to 85°C), sensing distance (0.375"), through-beam sensing method, phototransistor output configuration, and PCB mount package. All compliance certifications (ROHS3, REACH unaffected) are equivalent.

Q: What is the difference between OPB802L55 and OPB811L55?

A: Both parts are parametrically equivalent across all electrical and mechanical specifications. The difference lies in the base product number designation (OPB802 versus OPB811), which reflects different product lines within the TT Electronics/Optek optical sensor family. Both are active products with identical performance characteristics.

Q: Why is OPB810L55 listed as obsolete?

A: OPB810L55 is classified as discontinued by the manufacturer. While it maintains full parametric equivalence with OPB802L55, its obsolete status indicates that TT Electronics/Optek no longer actively manufactures this variant. New designs should select from active alternatives.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts are PCB mount through-hole components with identical package specifications. OPB810L55 shows packaging listed as unspecified in available data, but maintains the same PCB mount and through-hole mounting characteristics as the primary part.

Q: Which substitute part offers the best inventory availability?

A: OPB800L51 provides the highest inventory level at 15304 units in stock, followed by OPB800L55 at 3345 units. Both are active products suitable for immediate procurement.