OPB993N11Z Equivalent & Substitute Parts

Part Overview

The OPB993N11Z is a through-beam optical sensor module manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This component is classified as an optical sensor with a 0.125" (3.18mm) sensing distance, designed for chassis mount applications with wire leads. The part is currently obsolete, making equivalent substitute parts necessary for ongoing system support and new designs requiring compatible through-beam optical sensing functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB993N11Z
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Series	Photologic®
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the OPB993N11Z are determined by strict equivalence 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
Series: Photologic®
Manufacturer: TT Electronics/Optek Technology

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters. Substitutes are available in active product status, ensuring long-term availability and support compared to the obsolete OPB993N11Z.

Parameter Comparison

Part Number	Product Status	Sensing Distance	Sensing Method	Output Configuration	Current - Supply	Voltage - Supply	Response Time	Operating Temperature	Package / Case	RoHS Status	Inventory (Pcs)
OPB993N11Z	Obsolete	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	989
OPB933W51Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	3489
OPB933W55Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	1243
OPB943W51Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	1180
OPB983L11Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	896
OPB983L51Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	1900
OPB983P11Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	998
OPB983P51Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	2108
OPB983T51Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	20199
OPB993L11Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	1716
OPB993L55Z	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant	722

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the OPB993N11Z. Selection among active alternatives should prioritize:

Product Status: All substitute parts are in active production status, ensuring availability and manufacturer support. The OPB993N11Z is obsolete and no longer manufactured.
Compliance Certifications: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory standing.
Inventory Availability: OPB983T51Z offers the highest inventory level at 20,199 pieces, followed by OPB933W51Z at 3,489 pieces. These options provide supply chain security for high-volume applications.
Packaging Consistency: All substitutes are supplied in bulk packaging, consistent with standard procurement practices for active components.

Frequently Asked Questions (FAQ)

Q: Can OPB933W51Z, OPB933W55Z, OPB943W51Z, OPB983L11Z, OPB983L51Z, OPB983P11Z, OPB983P51Z, OPB983T51Z, OPB993L11Z, and OPB993L55Z be used interchangeably with OPB993N11Z?

A: Yes. All listed parts share identical electrical specifications (15 mA supply current, 4.75V–5.25V supply voltage, 70ns response time), mechanical configuration (0.125" sensing distance, through-beam method, NPN open collector inverted output, chassis mount), and operating range (-40°C to 70°C). They are functionally equivalent for direct substitution.

Q: Why is the OPB993N11Z listed as obsolete?

A: The OPB993N11Z has been discontinued by the manufacturer. Active substitute parts from the OPB933, OPB943, and OPB983 base product families provide equivalent functionality with ongoing manufacturer support and availability.

Q: Are there packaging differences between the OPB993N11Z and its substitutes?

A: The OPB993N11Z was supplied in standard packaging. All substitute parts are supplied in bulk packaging, which is the current standard for Photologic® series optical sensors. The module configuration and wire lead interface remain unchanged.

Q: Do all substitutes meet the same compliance requirements?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original OPB993N11Z.

Q: Which substitute part offers the best supply availability?

A: OPB983T51Z provides the highest inventory level at 20,199 pieces, making it the optimal choice for applications requiring supply chain continuity and volume procurement.

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