OPB993T11 Equivalent & Substitute Parts

Part Overview

The OPB993T11 is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This through-beam optical sensor operates at 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 system maintenance and new designs requiring compatible functionality.

Substiute Parts

OPB993T11

TT Electronics/Optek TechnologyIn Stock: 757OPB993T11 Datasheet

Current PartRFQ

OPB933W51Z

TT Electronics/Optek TechnologyIn Stock: 3561OPB933W51Z Datasheet

MFR RecommendedRFQ

OPB933W55Z

TT Electronics/Optek TechnologyIn Stock: 1260OPB933W55Z Datasheet

MFR RecommendedRFQ

OPB943W51Z

TT Electronics/Optek TechnologyIn Stock: 1290OPB943W51Z Datasheet

MFR RecommendedRFQ

OPB983L11Z

TT Electronics/Optek TechnologyIn Stock: 909OPB983L11Z Datasheet

MFR RecommendedRFQ

OPB983L51Z

TT Electronics / Optek TechnologyIn Stock: 1963OPB983L51Z Datasheet

MFR RecommendedRFQ

OPB983P11Z

TT Electronics/Optek TechnologyIn Stock: 1065OPB983P11Z Datasheet

MFR RecommendedRFQ

OPB983P51Z

TT Electronics / Optek TechnologyIn Stock: 2214OPB983P51Z Datasheet

MFR RecommendedRFQ

OPB983T51Z

TT Electronics/Optek TechnologyIn Stock: 20258OPB983T51Z Datasheet

MFR RecommendedRFQ

OPB993L11Z

TT Electronics/Optek TechnologyIn Stock: 1792OPB993L11Z Datasheet

MFR RecommendedRFQ

OPB993L55Z

TT Electronics/Optek TechnologyIn Stock: 774OPB993L55Z Datasheet

MFR RecommendedRFQ

OPB993P51Z

TT Electronics/Optek TechnologyIn Stock: 836OPB993P51Z Datasheet

MFR RecommendedRFQ

OPB993T51Z

TT Electronics / Optek TechnologyIn Stock: 1498OPB993T51Z Datasheet

MFR RecommendedRFQ

OPB993T55Z

TT Electronics/Optek TechnologyIn Stock: 1161OPB993T55Z Datasheet

MFR RecommendedRFQ

OPB983T55Z

TT Electronics/Optek TechnologyIn Stock: 1045OPB983T55Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OPB993T11 are qualified based on strict electrical and mechanical parameter matching within the Photologic® optical sensor family. All substitute candidates maintain identical specifications across the following critical parameters:

• Sensing Distance: 0.125" (3.18mm)
• Sensing Method: Through-Beam
• Output Configuration: NPN - Open Collector, Inverted
• Mounting Type: Chassis Mount
• Current - Supply: 15 mA
• Voltage - Supply: 4.75V ~ 5.25V
• Response Time: 70ns
• Operating Temperature: -40°C ~ 70°C
• Package / Case: Module, Wire Leads

Substitute parts differ only in base product designation (OPB933, OPB943, OPB983, OPB993) and suffix codes indicating packaging variants and lead configurations. All substitute parts listed are active products with ROHS3 compliance, addressing the obsolescence and regulatory compliance limitations of the original OPB993T11.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain functional and electrical equivalence to the OPB993T11 across all critical operating parameters. Selection among substitute candidates should prioritize the following factors:

Product Status: All substitute parts are active products, eliminating obsolescence risk associated with the original OPB993T11.

Regulatory Compliance: All substitute parts carry ROHS3 compliance certification, addressing the RoHS non-compliance status of the original part. This compliance is mandatory for applications subject to EU RoHS Directive requirements.

Inventory Availability: OPB983T51Z offers the highest inventory level at 20,199 units, providing supply chain stability. OPB933W51Z provides 3,489 units with active status. Secondary options include OPB983L51Z (1,900 units) and OPB993L11Z (1,716 units).

Lead Configuration: Suffix codes indicate packaging variants. The "T" designation in OPB983T51Z and original OPB993T11 indicates consistent lead configuration. The "L" and "W" designations in alternative parts represent different lead styles within the same functional family.

Frequently Asked Questions (FAQ)

Q: Can OPB993T11 be directly replaced with any of the listed substitute parts?

A: Yes. All substitute parts maintain identical electrical specifications (supply voltage, current, response time, output configuration) and mechanical parameters (sensing distance, mounting type, package style). Direct substitution is functionally equivalent.

Q: What is the primary reason to transition from OPB993T11 to a substitute part?

A: The OPB993T11 is classified as obsolete. Substitute parts are active products with ROHS3 compliance, ensuring long-term availability and regulatory alignment for new designs and system maintenance.

Q: Do the different base product numbers (OPB933, OPB943, OPB983, OPB993) indicate functional differences?

A: No. Within this product family, base product numbers and suffix codes represent packaging and lead configuration variants. All listed parts maintain identical electrical and sensing characteristics specified in this reference.

Q: What do the suffix codes (W51Z, L11Z, T51Z, etc.) represent?

A: Suffix codes indicate packaging type and lead configuration variants. These designations do not affect electrical performance or sensing functionality. Selection should be based on mechanical fit requirements and available inventory.

Q: Is ROHS3 compliance required for my application?

A: ROHS3 compliance is mandatory for products sold in the European Union and many other regulated markets. All substitute parts listed carry ROHS3 certification, while the original OPB993T11 does not. Verify regulatory requirements for your specific application and market.

Q: Which substitute part offers the best supply chain stability?

A: OPB983T51Z provides the highest inventory level at 20,199 units, offering superior supply chain stability. OPB933W51Z (3,489 units) and OPB983L51Z (1,900 units) are secondary options with substantial availability.