OPB493P11 Equivalent & Substitute Parts

Part Overview

The OPB493P11 is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This through-beam optical sensor operates at a 0.125" (3.18mm) sensing distance with NPN open collector inverted output configuration. The part is classified as obsolete, making equivalent substitute parts necessary for ongoing applications and new designs. Active alternatives within the same electrical and mechanical specifications are available to ensure design continuity.

Substiute Parts

OPB493P11

TT Electronics/Optek TechnologyIn Stock: 840OPB493P11 Datasheet

Current PartRFQ

OPB463N11

TT Electronics/Optek TechnologyIn Stock: 1952OPB463N11 Datasheet

MFR RecommendedRFQ

OPB473N11

TT Electronics/Optek TechnologyIn Stock: 851OPB473N11 Datasheet

MFR RecommendedRFQ

OPB483L11Z

TT Electronics/Optek TechnologyIn Stock: 1188OPB483L11Z Datasheet

MFR RecommendedRFQ

OPB483P11Z

TT Electronics/Optek TechnologyIn Stock: 1190OPB483P11Z Datasheet

MFR RecommendedRFQ

OPB493T11Z

TT Electronics/Optek TechnologyIn Stock: 1083OPB493T11Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters across all candidates:

• Sensing Distance: 0.125" (3.18mm)
• Sensing Method: Through-Beam
• Output Configuration: NPN - Open Collector, Inverted
• Voltage Supply Range: 4.5V ~ 16V
• Current Supply: 7.5 mA
• Response Time: 50ns
• Operating Temperature Range: -40°C ~ 85°C
• Manufacturer: TT Electronics/Optek Technology
• Series: Photologic®

All substitute parts listed below meet these electrical specifications. The primary distinction among substitutes is the mounting type and package configuration. OPB463N11 and OPB473N11 feature PCB mount through-hole packaging, while OPB483L11Z, OPB483P11Z, and OPB493T11Z maintain the module wire leads configuration matching the original OPB493P11 form factor.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain electrical equivalence with the OPB493P11 across sensing distance, output configuration, supply voltage, current draw, response time, and operating temperature range. The primary selection criterion is mounting configuration and regulatory compliance.

For applications requiring direct form-factor compatibility with the original OPB493P11 chassis mount wire leads configuration, OPB483L11Z, OPB483P11Z, and OPB493T11Z are electrically and mechanically equivalent. All three are active products with ROHS3 compliance, providing long-term availability and regulatory alignment.

For applications where PCB mount through-hole integration is acceptable, OPB463N11 and OPB473N11 offer active product status and ROHS3 compliance. These parts are suitable for new PCB designs or retrofit applications where mounting method can be adapted.

The original OPB493P11 carries RoHS non-compliant status and obsolete product classification. All substitute parts listed are active products with ROHS3 compliance, ensuring regulatory compliance for current and future manufacturing requirements.

Frequently Asked Questions (FAQ)

Q: Can OPB463N11 or OPB473N11 directly replace OPB493P11 in existing assemblies?

A: Electrical substitution is valid. However, OPB463N11 and OPB473N11 use PCB mount through-hole packaging, while OPB493P11 uses chassis mount wire leads. Physical integration requires mechanical redesign or adapter solutions.

Q: What is the difference between OPB483L11Z and OPB483P11Z?

A: Both parts share identical electrical specifications and chassis mount wire leads packaging. The distinction lies in packaging designation (L versus P variant). Both are active products with ROHS3 compliance and equivalent inventory availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. OPB463N11, OPB473N11, OPB483L11Z, OPB483P11Z, and OPB493T11Z all carry ROHS3 compliance status. The original OPB493P11 is RoHS non-compliant.

Q: Which substitute offers the best long-term availability?

A: All substitute parts are classified as active products. OPB483L11Z, OPB483P11Z, and OPB493T11Z maintain the original form factor and are recommended for direct replacement scenarios. OPB463N11 and OPB473N11 provide alternatives for new designs with PCB integration.

Q: Do all substitutes operate at the same sensing distance?

A: Yes. All substitute parts operate at 0.125" (3.18mm) sensing distance, matching the original OPB493P11 specification.

Q: What is the supply voltage range for these optical sensors?

A: All parts, including OPB493P11 and its substitutes, operate within the 4.5V to 16V supply voltage range with 7.5 mA current draw.