OPB816 Equivalent & Substitute Parts

Part Overview

The OPB816 is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This chassis-mounted, pre-wired sensor operates with a 0.200" (5.08mm) sensing distance and provides unamplified phototransistor output. The OPB816 is classified as obsolete, necessitating identification of active equivalent parts for continued system support and new designs. Substitute parts must maintain identical electrical and mechanical parameters to ensure direct compatibility in existing applications.

Substiute Parts

OPB816

TT Electronics/Optek TechnologyIn Stock: 1175OPB816 Datasheet

Current PartRFQ

OPB816Z

TT Electronics/Optek TechnologyIn Stock: 11796OPB816Z Datasheet

DirectRFQ

OPB817Z

TT Electronics/Optek TechnologyIn Stock: 6129OPB817Z Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OPB816 are identified based on strict parameter matching across electrical and mechanical specifications. The critical parameters determining substitution eligibility are:

• Sensing distance: 0.200" (5.08mm)
• Sensing method: Through-beam
• Output configuration: Phototransistor
• Current ratings: If (Max) 50 mA, Ic (Max) 30 mA
• Voltage rating: Collector-Emitter Breakdown 30 V
• Mounting type: Chassis Mount
• Package type: Module, Pre-Wired
• Sensor type: Unamplified

Parts meeting all these parameters are classified as direct equivalents or parametric equivalents. The OPB816Z is a direct manufacturer equivalent with identical specifications and active product status. The OPB817Z is a parametric equivalent with matching electrical and mechanical parameters, with the exception of operating temperature range (-40°C ~ 80°C versus -40°C ~ 85°C).

Parameter Comparison

Engineering Selection Recommendations

The OPB816Z is the primary substitute for the obsolete OPB816. Both parts share identical electrical specifications, mechanical configuration, and operating temperature range. The OPB816Z carries active product status and ROHS3 compliance, providing long-term availability and regulatory alignment for new designs and production continuity.

The OPB817Z serves as an alternative parametric equivalent with all electrical and mechanical parameters matching the OPB816, with the exception of maximum operating temperature (80°C versus 85°C). Selection of OPB817Z is appropriate for applications where the upper temperature limit of 80°C satisfies system requirements. The OPB817Z also maintains active product status and ROHS3 compliance.

Both substitute parts are manufactured by the same supplier, ensuring consistency in design, quality, and performance characteristics. Regulatory compliance improvements (ROHS3) in both substitutes support modern procurement and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can OPB816Z directly replace OPB816 in existing designs?

A: Yes. The OPB816Z maintains identical electrical ratings (50 mA forward current, 30 mA collector current, 30 V breakdown voltage), sensing distance (0.200"), sensing method (through-beam), output configuration (phototransistor), operating temperature range (-40°C ~ 85°C), and mechanical configuration (chassis mount, pre-wired module). Direct substitution is supported without circuit modification.

Q: What is the difference between OPB816Z and OPB817Z?

A: The OPB817Z operates at a maximum temperature of 80°C, compared to 85°C for OPB816Z. All other electrical and mechanical parameters are identical. Selection depends on application temperature requirements.

Q: Why is the OPB816 obsolete?

A: The OPB816 is classified as obsolete by the manufacturer. Active equivalents (OPB816Z and OPB817Z) are available to support existing applications and enable new designs with current product availability.

Q: Are there packaging differences between these parts?

A: All three parts share identical packaging: module, pre-wired configuration with chassis mount. Packaging is not a differentiating factor for substitution.

Q: Do the substitute parts meet current regulatory standards?

A: Yes. Both OPB816Z and OPB817Z are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original OPB816 is RoHS non-compliant.

Q: What inventory levels are available for these parts?

A: OPB816Z has 11,763 pieces in stock. OPB817Z has 6,117 pieces in stock. The original OPB816 has 1,114 pieces in stock but is obsolete.