OPB493P11Z Equivalent & Substitute Parts

Part Overview

The OPB493P11Z is a through-beam optical sensor from the Photologic® series manufactured by TT Electronics/Optek Technology. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The sensor operates as a 0.125" (3.18mm) module with wire leads, providing NPN open collector inverted output for detection applications requiring through-beam sensing methodology.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB493P11Z
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Series	Photologic®
Product Status	Obsolete
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	NPN - Open Collector, Inverted
Mounting Type	Chassis Mount
Current - Supply	7.5 mA
Voltage - Supply	4.5V ~ 16V
Response Time	50ns
Operating Temperature	-40°C ~ 85°C
Package / Case	Module, Wire Leads
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution for the OPB493P11Z is 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
Current - Supply: 7.5 mA
Voltage - Supply: 4.5V ~ 16V
Response Time: 50ns
Operating Temperature: -40°C ~ 85°C
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

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

Module, Wire Leads (Chassis Mount): OPB483P11Z, OPB483L11Z, OPB493T11Z

PCB Mount (Through Hole): OPB463N11, OPB473N11

All substitute parts maintain identical electrical specifications and environmental ratings as the original OPB493P11Z.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	Mounting Type	Current - Supply	Voltage - Supply	Response Time	Operating Temperature	Package / Case	RoHS Status
OPB493P11Z	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	Chassis Mount	7.5 mA	4.5V ~ 16V	50ns	-40°C ~ 85°C	Module, Wire Leads	ROHS3 Compliant
OPB483P11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	Chassis Mount	7.5 mA	4.5V ~ 16V	50ns	-40°C ~ 85°C	Module, Wire Leads	ROHS3 Compliant
OPB483L11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	Chassis Mount	7.5 mA	4.5V ~ 16V	50ns	-40°C ~ 85°C	Module, Wire Leads	ROHS3 Compliant
OPB493T11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	Chassis Mount	7.5 mA	4.5V ~ 16V	50ns	-40°C ~ 85°C	Module, Wire Leads	ROHS3 Compliant
OPB463N11	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	Through Hole	7.5 mA	4.5V ~ 16V	50ns	-40°C ~ 85°C	PCB Mount	ROHS3 Compliant
OPB473N11	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	NPN - Open Collector, Inverted	Through Hole	7.5 mA	4.5V ~ 16V	50ns	-40°C ~ 85°C	PCB Mount	ROHS3 Compliant

Engineering Selection Recommendations

For applications currently using the obsolete OPB493P11Z, direct electrical substitution is available through OPB483P11Z, OPB483L11Z, or OPB493T11Z. All three parts maintain active product status and carry identical electrical and environmental specifications. These parts are ROHS3 compliant and REACH unaffected, matching the regulatory compliance profile of the original component.

For new designs or applications where PCB mounting is feasible, OPB463N11 and OPB473N11 provide equivalent electrical performance with through-hole PCB mount configuration. Both parts are active products with full compliance certifications.

Selection between wire lead and PCB mount variants depends solely on mechanical integration requirements within the target application. Electrical performance and environmental ratings remain constant across all substitute options.

Frequently Asked Questions (FAQ)

Q: Can OPB483P11Z directly replace OPB493P11Z in existing assemblies?

A: Yes. OPB483P11Z provides identical electrical specifications, output configuration, sensing distance, and environmental operating range. Both are module-type sensors with wire leads and chassis mount configuration. The primary difference is product status: OPB493P11Z is obsolete while OPB483P11Z is active.

Q: What is the difference between wire lead and PCB mount variants?

A: Wire lead variants (OPB483P11Z, OPB483L11Z, OPB493T11Z) use chassis mount configuration for panel or enclosure integration. PCB mount variants (OPB463N11, OPB473N11) use through-hole configuration for direct PCB assembly. All variants maintain identical electrical performance and sensing characteristics.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed—OPB483P11Z, OPB483L11Z, OPB493T11Z, OPB463N11, and OPB473N11—are ROHS3 compliant and REACH unaffected, matching the regulatory status of OPB493P11Z.

Q: What determines whether a part can substitute for OPB493P11Z?

A: Substitution is determined by equivalence in sensing distance (0.125"), sensing method (through-beam), output configuration (NPN open collector inverted), supply current (7.5 mA), supply voltage range (4.5V–16V), response time (50ns), and operating temperature range (-40°C to 85°C). Mounting type may differ based on application requirements.

Q: Is OPB493T11Z identical to OPB493P11Z?

A: OPB493T11Z matches all electrical and environmental specifications of OPB493P11Z. The primary distinction is product status: OPB493P11Z is obsolete while OPB493T11Z is active. Both use module wire lead configuration with chassis mount.

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