OPB892P55 Equivalent & Substitute Parts

Part Overview

The OPB892P55 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 equivalent and substitute parts necessary for ongoing system support and new designs requiring this functional specification.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB892P55
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
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the OPB892P55 is determined by strict equivalence across the following critical parameters:

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
Type: Unamplified

Substitute parts are grouped into two categories:

MFR Recommended Substitute: OPB892T55Z differs from the original part only in mounting type (PCB Mount vs. Chassis Mount) and product status (Active vs. Obsolete). This represents the direct manufacturer upgrade path.

Parametric Equivalents: OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, and OPB380P51Z maintain identical electrical specifications and sensing characteristics. These parts differ only in base product number designation and are all active products with RoHS3 compliance.

Parameter Comparison

Parameter	OPB892P55	OPB892T55Z	OPB360N51	OPB365N11	OPB365N51	OPB365P55	OPB370N51	OPB370N55	OPB375N51	OPB380N11Z	OPB380P51Z
Sensing Distance	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.125" (3.18mm)
Sensing Method	Through-Beam	Through-Beam	Through-Beam	Through-Beam	Through-Beam	Through-Beam	Through-Beam	Through-Beam	Through-Beam	Through-Beam	Through-Beam
Output Configuration	Phototransistor	Phototransistor	Phototransistor	Phototransistor	Phototransistor	Phototransistor	Phototransistor	Phototransistor	Phototransistor	Phototransistor	Phototransistor
Current - DC Forward (If) (Max)	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA
Current - Collector (Ic) (Max)	30 mA	30 mA	30 mA	30 mA	30 mA	30 mA	30 mA	30 mA	30 mA	30 mA	30 mA
Voltage - Collector Emitter Breakdown (Max)	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V	30 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Type	Unamplified	Unamplified	Unamplified	Unamplified	Unamplified	Unamplified	Unamplified	Unamplified	Unamplified	Unamplified	Unamplified
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount
Package / Case	Module, Pre-Wired	PCB Mount	Module, Pre-Wired	Module, Pre-Wired	Module, Pre-Wired	Module, Pre-Wired	Module, Pre-Wired	Module, Pre-Wired	Module, Pre-Wired	Module, Pre-Wired	Module, Pre-Wired
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For applications currently using OPB892P55, the following selection criteria apply:

OPB892T55Z is the manufacturer-recommended substitute. This part maintains all electrical and sensing specifications while transitioning from obsolete to active product status. The primary difference is packaging: OPB892T55Z uses PCB Mount configuration versus the original Chassis Mount. This part achieves ROHS3 compliance, addressing regulatory requirements for new designs and production runs.

OPB370N55 offers the highest inventory availability (90,400 units) among parametric equivalents while maintaining identical electrical specifications and pre-wired module packaging. This part is suitable for applications where the base product number designation does not impact system integration.

All substitute parts listed maintain the critical electrical parameters: 50 mA maximum DC forward current, 30 mA maximum collector current, 30 V collector-emitter breakdown voltage, and -40°C to 85°C operating temperature range. All active substitutes are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can OPB892T55Z directly replace OPB892P55 in existing designs?

A: OPB892T55Z maintains identical electrical specifications and sensing characteristics. The primary difference is mounting type: OPB892T55Z uses PCB Mount while OPB892P55 uses Chassis Mount. Mechanical integration must be evaluated based on your specific mounting requirements.

Q: What is the difference between the MFR Recommended substitute and Parametric Equivalents?

A: OPB892T55Z is the manufacturer's direct upgrade path from the obsolete OPB892P55, differing only in mounting configuration and product status. Parametric equivalents (OPB360N51, OPB365 series, OPB370 series, OPB375N51, OPB380 series) are alternative active products that match all electrical and sensing specifications but use different base product number designations.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are ROHS3 compliant. The original OPB892P55 is RoHS non-compliant. Compliance status is a key consideration for new production and regulatory requirements.

Q: Does package type affect electrical performance?

A: No. The difference between Module Pre-Wired (OPB892P55, parametric equivalents) and PCB Mount (OPB892T55Z) packaging affects mechanical integration only. Electrical specifications, sensing distance, and output characteristics remain identical.

Q: Which substitute part has the best inventory availability?

A: OPB370N55 has the highest inventory level at 90,400 units in stock. This part is suitable for applications where base product number does not impact system requirements.

Q: Can I use parametric equivalents interchangeably with OPB892P55?

A: Yes, from an electrical and functional standpoint. All parametric equivalents maintain the 0.125" sensing distance, through-beam sensing method, phototransistor output, and identical current and voltage specifications. Mechanical mounting and integration must be evaluated for your specific application.

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