OPB892T51Z Equivalent & Substitute Parts

Part Overview

The OPB892T51Z is an optical sensor manufactured by TT Electronics/Optek Technology, classified as a through-beam phototransistor optical sensor with PCB mount configuration. This component is currently listed as obsolete, with 678 units available in new original stock. The sensor operates at a sensing distance of 0.125" (3.18mm) and is designed for applications requiring unamplified optical detection with phototransistor output configuration.

Due to the obsolete product status of the OPB892T51Z, equivalent and substitute parts from the active product lines are available to ensure design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB892T51Z
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	PCB Mount
Type	Unamplified
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the OPB892T51Z are 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
Mounting Type: Chassis Mount
Package / Case: PCB Mount
Type: Unamplified
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters. Substitutes are available in both active product status and bulk packaging configurations, providing improved supply chain availability compared to the obsolete OPB892T51Z.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	If (Max)	Ic (Max)	VCE Breakdown (Max)	Operating Temperature	Mounting Type	Package	Type	RoHS Status	Inventory
OPB892T51Z	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	678 Pcs
OPB892L51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	1109 Pcs
OPB890L11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	3656 Pcs
OPB890T11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	1277 Pcs
OPB890T51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	768 Pcs
OPB890T55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	1452 Pcs
OPB891T51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	1420 Pcs
OPB891T55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	1309 Pcs
OPB892T55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	PCB Mount	Unamplified	ROHS3 Compliant	741 Pcs

Engineering Selection Recommendations

The OPB892T51Z is obsolete and should be replaced with an active equivalent from the TT Electronics/Optek Technology optical sensor product line. All listed substitute parts maintain full electrical and mechanical compatibility with the original specification.

OPB892L51Z is the manufacturer-recommended direct replacement, offering active product status with bulk packaging and superior inventory availability (1109 units). This part shares the identical base product number (OPB892) and maintains all critical electrical parameters.

For applications requiring maximum inventory assurance, OPB890L11Z provides the highest stock level (3656 units) while maintaining complete parametric equivalence. This part is suitable for new designs or high-volume production requirements.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can OPB892L51Z directly replace OPB892T51Z in existing designs?

A: Yes. OPB892L51Z is the manufacturer-recommended equivalent with identical electrical specifications (50 mA forward current, 30 mA collector current, 30 V breakdown voltage), operating temperature range (-40°C ~ 85°C), sensing distance (0.125"), and PCB mount configuration. The primary difference is product status (active vs. obsolete) and packaging (bulk).

Q: What is the difference between OPB890, OPB891, and OPB892 series parts?

A: All three series (OPB890, OPB891, OPB892) share identical electrical and mechanical parameters as specified in this reference. Substitution between series is valid based on the provided parameter equivalence.

Q: Are there packaging differences between the substitute parts?

A: All substitute parts listed use PCB Mount packaging with chassis mount configuration. OPB892L51Z, OPB890L11Z, OPB890T11Z, OPB890T51Z, OPB890T55Z, OPB891T51Z, OPB891T55Z, and OPB892T55Z are available in bulk packaging, while the original OPB892T51Z was supplied in standard packaging.

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

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance profile of the original OPB892T51Z.

Q: Which substitute part offers the best supply availability?

A: OPB890L11Z provides the highest inventory level at 3656 units in new original stock, followed by OPB892L51Z at 1109 units. Both are active products suitable for immediate procurement.

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