OPB815W Equivalent & Substitute Parts

Part Overview

The OPB815W is an optical sensor manufactured by TT Electronics/Optek Technology, designed as a through-beam phototransistor module with a 0.375" (9.53mm) sensing distance. This pre-wired chassis mount component operates in the -40°C to 80°C temperature range and delivers a maximum DC forward current of 50 mA with a 30 V collector-emitter breakdown voltage.

The OPB815W is classified as obsolete. Locating equivalent or substitute components is necessary to support legacy system maintenance, repair, and continued operation where original stock is depleted or unavailable.

Substiute Parts

OPB815W

TT Electronics/Optek TechnologyIn Stock: 1016OPB815W Datasheet

Current PartRFQ

OPB815WZ

TT Electronics/Optek TechnologyIn Stock: 2531OPB815WZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OPB815W is determined by strict equivalence across the following critical parameters:

• Sensing distance: 0.375" (9.53mm)
• Sensing method: Through-beam optical detection
• Output configuration: Phototransistor
• Current rating: 50 mA maximum DC forward current
• Voltage rating: 30 V collector-emitter breakdown
• Operating temperature range: -40°C to 80°C
• Mounting type: Chassis mount
• Package configuration: Module, pre-wired

The OPB815WZ qualifies as a direct substitute because it maintains identical electrical specifications, sensing characteristics, and mechanical form factor. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The OPB815WZ is the direct substitute for the OPB815W. Both components share identical electrical and mechanical specifications, ensuring functional equivalence in circuit applications.

The OPB815WZ offers two significant advantages over the obsolete OPB815W:

1. Active product status with confirmed inventory availability (2498 pcs in stock versus 994 pcs for the OPB815W)
2. ROHS3 compliance, meeting current environmental and regulatory standards

For new designs or system replacements, the OPB815WZ is the appropriate selection. For legacy system repairs requiring exact form-factor and electrical compatibility, both parts are functionally interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the OPB815WZ replace the OPB815W in existing applications?

A: Yes. The OPB815WZ is electrically and mechanically equivalent to the OPB815W. Both components feature identical sensing distance (0.375"), through-beam detection method, phototransistor output, current rating (50 mA), voltage rating (30 V), operating temperature range (-40°C to 80°C), and pre-wired module packaging.

Q: What is the difference between OPB815W and OPB815WZ?

A: The primary differences are product status and regulatory compliance. The OPB815W is obsolete and RoHS non-compliant. The OPB815WZ is an active product with ROHS3 compliance. Packaging differs (OPB815W is unspecified; OPB815WZ is bulk), but both maintain identical electrical and mechanical form factors.

Q: Are there any compatibility concerns when substituting OPB815WZ for OPB815W?

A: No compatibility concerns exist. The components are pin-compatible, functionally identical, and share the same mechanical mounting interface (chassis mount). Circuit integration requires no modifications.

Q: Why is the OPB815W listed as obsolete?

A: The OPB815W has been superseded by the OPB815WZ, which offers improved regulatory compliance (ROHS3) and active manufacturing status. The OPB815W remains available in limited inventory but is no longer in active production.

Q: Which part should be selected for new designs?

A: The OPB815WZ should be selected for new designs. It provides active product support, regulatory compliance, and confirmed long-term availability.