OPB492P11Z Equivalent & Substitute Parts

Part Overview

The OPB492P11Z is a through-beam optical sensor from the Photologic® series manufactured by TT Electronics/Optek Technology. This component is a 0.125" (3.18mm) module with wire leads designed for chassis mount applications. The OPB492P11Z is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring this sensing functionality.

Key Parameters

Parameter	Value
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the OPB492P11Z is determined by electrical and mechanical compatibility across the following critical parameters:

Sensing Distance: 0.125" (3.18mm) through-beam configuration
Output Configuration: Pull-Up Resistor, Inverted logic
Voltage Supply Range: 4.5V ~ 16V
Current Supply: 7.5 mA
Response Time: 50ns
Operating Temperature Range: -40°C ~ 85°C
Series Compatibility: Photologic® series

Substitute parts are grouped into two categories based on mounting type:

Category 1 - Chassis Mount Module (Wire Leads): OPB492T11Z and OPB492L11Z maintain identical electrical specifications and the same physical form factor as the OPB492P11Z, differing only in product status and packaging designation.

Category 2 - Through-Hole PCB Mount: OPB472N11 provides electrical equivalence but requires different mechanical integration due to PCB mount configuration instead of chassis mount.

Parameter Comparison

Part Number	Manufacturer	Product Status	Mounting Type	Package Type	Sensing Distance	Voltage Supply	Current Supply	Response Time	Operating Temperature	RoHS Status
OPB492P11Z	TT Electronics/Optek	Obsolete	Chassis Mount	Module, Wire Leads	0.125" (3.18mm)	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	ROHS3 Compliant
OPB492T11Z	TT Electronics/Optek	Active	Chassis Mount	Module, Wire Leads	0.125" (3.18mm)	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	ROHS3 Compliant
OPB492L11Z	TT Electronics/Optek	Active	Chassis Mount	Module, Wire Leads	0.125" (3.18mm)	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	ROHS3 Compliant
OPB472N11	TT Electronics/Optek	Active	Through Hole	PCB Mount	0.125" (3.18mm)	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	ROHS3 Compliant
OPB482N11Z	TT Electronics/Optek	Obsolete	Chassis Mount	Module, Wire Leads	0.125" (3.18mm)	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement)

OPB492T11Z and OPB492L11Z are the preferred substitutes for OPB492P11Z. Both parts are active products with identical electrical specifications, sensing characteristics, and chassis mount form factor. These substitutes provide direct compatibility with existing mechanical and electrical designs without modification.

Secondary Substitute (Mechanical Integration Required)

OPB472N11 is electrically equivalent but requires mechanical redesign due to its through-hole PCB mount configuration. This substitute is suitable only when system redesign to accommodate PCB mounting is feasible.

Obsolete Alternatives (Not Recommended)

OPB482N11Z shares the same chassis mount form factor and electrical specifications as OPB492P11Z but is classified as obsolete. This part should not be selected for new designs or long-term system support.

Frequently Asked Questions (FAQ)

Q: Can OPB492T11Z or OPB492L11Z be used as direct replacements for OPB492P11Z?

A: Yes. Both OPB492T11Z and OPB492L11Z are direct electrical and mechanical equivalents. They maintain identical sensing distance, output configuration, voltage and current specifications, response time, and operating temperature range. Both are active products from the same Photologic® series.

Q: What is the difference between OPB492T11Z and OPB492L11Z?

A: Both parts are electrically and mechanically identical. The difference lies in their part number designation and packaging classification. Both are active products suitable for new designs and system support.

Q: Can OPB472N11 replace OPB492P11Z without modification?

A: OPB472N11 is electrically equivalent but has a different mounting type. OPB472N11 uses through-hole PCB mount configuration, while OPB492P11Z uses chassis mount with wire leads. Mechanical redesign is required to accommodate the different mounting interface.

Q: Why is OPB492P11Z listed as obsolete?

A: OPB492P11Z is classified as obsolete by the manufacturer. Active equivalent products (OPB492T11Z and OPB492L11Z) are available and should be used for new designs and ongoing system support.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (OPB492T11Z, OPB492L11Z, OPB472N11, and OPB482N11Z) are ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: sensing distance (0.125"), sensing method (through-beam), output configuration (pull-up resistor, inverted), voltage supply range (4.5V ~ 16V), current supply (7.5 mA), response time (50ns), and operating temperature range (-40°C ~ 85°C). Mounting type determines whether mechanical integration changes are required.

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