OPB892P51 Equivalent & Substitute Parts

Part Overview

The OPB892P51 is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This component features a 0.125" (3.18mm) sensing distance with pre-wired chassis mount packaging and unamplified phototransistor output configuration. The part is currently obsolete, making identification of active equivalent and substitute components essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB892P51
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Phototransistor
Current - DC Forward (If) (Max)	50 mA
Current - Collector (Ic) (Max)	30 mA
Voltage - Collector Emitter Breakdown (Max)	30 V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Chassis Mount
Package / Case	Module, Pre-Wired
Type	Unamplified
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the OPB892P51 is determined by strict electrical and mechanical parameter matching across the optical sensor product line. The critical parameters that define substitutability are:

Electrical Parameters: Sensing distance (0.125" / 3.18mm), sensing method (through-beam), output configuration (phototransistor), maximum collector current (30 mA), maximum forward current (50 mA), and collector-emitter breakdown voltage (30 V).

Mechanical Parameters: Mounting type (chassis mount), package configuration (module, pre-wired), and operating temperature range (-40°C ~ 85°C).

Compliance Parameters: RoHS status and REACH compliance status.

Substitute parts are grouped into two categories:

Manufacturer Recommended Substitute: OPB892L51Z differs only in mounting configuration (PCB mount versus pre-wired module) and product status (active versus obsolete), maintaining all electrical parameters.

Parametric Equivalents: OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, and OPB380P51Z maintain identical electrical specifications and pre-wired module packaging while representing different product series within the OPB family. All are active products with RoHS3 compliance.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	Ic (Max)	If (Max)	Vce Breakdown (Max)	Operating Temp	Mounting Type	Package / Case	Type	RoHS Status
OPB892P51	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	RoHS non-compliant
OPB892L51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant
OPB360N51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant
OPB365N11	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant
OPB365N51	TT Electronics / Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant
OPB365P55	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant
OPB370N51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant
OPB370N55	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant
OPB375N51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant
OPB380N11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant
OPB380P51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	30 mA	50 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant

Engineering Selection Recommendations

All parametric equivalent parts listed maintain identical electrical and mechanical specifications to the OPB892P51. The primary distinction between substitute options is product status and compliance certification.

The OPB892P51 is obsolete and RoHS non-compliant. All listed substitutes are active products with ROHS3 compliance, ensuring continued availability and regulatory alignment with current environmental standards.

For applications requiring pre-wired module packaging identical to the original OPB892P51 configuration, the parametric equivalents OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, and OPB380P51Z provide direct functional replacement with active product status.

The OPB892L51Z offers an alternative with PCB mount configuration instead of pre-wired module packaging. This substitution requires mechanical redesign of the mounting interface but maintains all electrical parameters and provides active product status with RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can OPB892L51Z replace OPB892P51 directly?

A: OPB892L51Z maintains all electrical parameters (sensing distance, current ratings, voltage ratings, operating temperature) but differs in mounting configuration. The original OPB892P51 uses pre-wired module packaging, while OPB892L51Z uses PCB mount. Direct mechanical substitution requires redesign of the mounting interface.

Q: What is the difference between the parametric equivalent parts?

A: All parametric equivalents (OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, OPB380P51Z) maintain identical electrical specifications and pre-wired module packaging. The differences are in product series designation within the OPB family. All are active products with ROHS3 compliance.

Q: Why is RoHS compliance important for this substitution?

A: The OPB892P51 is RoHS non-compliant. All active substitutes are ROHS3 compliant, meeting current environmental regulations for electronic components. This compliance is required for new designs and procurement in regulated markets.

Q: Are all substitute parts available in the same quantities?

A: Inventory levels vary across substitute parts. OPB370N55 has the highest inventory (90,400 pcs), while OPB375N51 has lower availability (648 pcs). Verify current stock status with your supplier for procurement planning.

Q: Can I use OPB892L51Z in a new design instead of the obsolete OPB892P51?

A: Yes, OPB892L51Z is the manufacturer-recommended substitute. It provides active product status and RoHS3 compliance. However, the PCB mount configuration requires mechanical redesign compared to the pre-wired module of the original part.

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