OPB492L11Z Equivalent & Substitute Parts

Part Overview

The OPB492L11Z is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This through-beam optical sensor features a 0.125" (3.18mm) sensing distance and is designed for chassis mount applications with wire leads. The component is currently in active product status with 745 units in stock. Substitute parts are necessary when addressing inventory constraints, managing supply chain alternatives, or transitioning from obsolete product lines while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB492L11Z
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Series	Photologic®
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Pull-Up Resistor, Inverted
Voltage - Supply	4.5V ~ 16V
Current - Supply	7.5 mA
Response Time	50ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Chassis Mount
Package / Case	Module, Wire Leads
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the OPB492L11Z is determined by strict equivalence across the following critical parameters:

Sensing Distance: 0.125" (3.18mm)
Sensing Method: Through-Beam
Output Configuration: Pull-Up Resistor, Inverted
Voltage Supply Range: 4.5V ~ 16V
Current Supply: 7.5 mA
Response Time: 50ns
Operating Temperature Range: -40°C ~ 85°C
Mounting Type: Chassis Mount
Package / Case: Module, Wire Leads
Base Product Number: OPB492

Parts meeting all these criteria are classified as direct substitutes. The OPB492L11Z has two active equivalent parts and one obsolete alternative within the OPB492 base product family.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	Voltage - Supply	Current - Supply	Response Time	Operating Temperature	Mounting Type	Package / Case	RoHS Status	Inventory (Pcs)
OPB492L11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Inverted	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Chassis Mount	Module, Wire Leads	ROHS3 Compliant	745
OPB492T11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Inverted	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Chassis Mount	Module, Wire Leads	ROHS3 Compliant	4997
OPB482N11Z	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Inverted	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Chassis Mount	Module, Wire Leads	ROHS3 Compliant	848

Engineering Selection Recommendations

For new designs and active production environments, OPB492T11Z is the preferred substitute due to its active product status and significantly higher inventory availability (4997 units versus 745 units for OPB492L11Z). Both OPB492L11Z and OPB492T11Z are functionally identical and maintain full ROHS3 compliance and REACH unaffected status.

OPB482N11Z is classified as obsolete and should not be selected for new applications. While it maintains electrical and mechanical equivalence to the OPB492L11Z, its discontinued status presents long-term supply chain risk. This part is suitable only for legacy system maintenance where existing designs are locked to this specific part number.

All three parts share identical compliance certifications (ROHS3 Compliant, REACH Unaffected, EAR99 ECCN classification, and MSL 1 rating), ensuring regulatory and environmental compatibility across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can OPB492T11Z be used as a direct replacement for OPB492L11Z?

A: Yes. OPB492T11Z is a direct electrical and mechanical equivalent. Both parts share identical sensing distance, sensing method, output configuration, supply voltage range, current draw, response time, operating temperature range, mounting type, and package configuration. The parts are interchangeable at the circuit and mechanical assembly level.

Q: What is the difference between OPB492L11Z and OPB492T11Z?

A: The parts are functionally equivalent. The difference lies in the suffix designation (L versus T) and inventory availability. OPB492T11Z has higher stock levels (4997 units) compared to OPB492L11Z (745 units). Both maintain active product status.

Q: Why is OPB482N11Z listed as a substitute if it is obsolete?

A: OPB482N11Z is included for reference purposes in legacy system documentation and repair scenarios. While electrically and mechanically equivalent, its obsolete status means it should not be specified for new designs. Existing inventory (848 units) may be available for maintenance applications only.

Q: Are there any packaging differences between these substitute parts?

A: OPB492L11Z and OPB492T11Z are packaged in Bulk configuration. OPB482N11Z packaging information is not specified in the available data. All three parts use Module, Wire Leads as the package / case type and are designed for Chassis Mount applications.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. OPB492L11Z, OPB492T11Z, and OPB482N11Z all meet ROHS3 compliance, are REACH unaffected, carry EAR99 ECCN classification, and have MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance is maintained across all substitution options.

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