OPB882T55 Equivalent & Substitute Parts

Part Overview

The OPB882T55 is an optical sensor through-beam phototransistor module manufactured by TT Electronics / Optek Technology. This component is classified as an unamplified optical sensor with a 0.125" (3.18mm) sensing distance, designed for slot-type through-beam detection applications. The part is currently listed as obsolete, which necessitates identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for seamless system integration.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB882T55
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

Substitute parts for the OPB882T55 are qualified based on strict parametric equivalence across the following critical specifications:

Sensing distance: 0.125" (3.18mm)
Sensing method: Through-beam
Output configuration: Phototransistor
Current ratings: If (Max) 50 mA, Ic (Max) 30 mA
Voltage rating: Collector-Emitter Breakdown 30 V
Operating temperature range: -40°C ~ 85°C
Mounting type: Chassis Mount
Package type: Module, Pre-Wired
Sensor type: Unamplified

All identified substitute parts maintain these parameters without deviation. Substitutes are further categorized by product status and compliance certifications to support procurement decisions.

Parameter Comparison

Part Number	Manufacturer	Sensing Distance	Sensing Method	Output Configuration	If (Max)	Ic (Max)	VCE Breakdown (Max)	Operating Temperature	Mounting Type	Package / Case	Type	Product Status	RoHS Status	Inventory
OPB882T55	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Obsolete	RoHS non-compliant	1064 Pcs
OPB882T55Z	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	760 Pcs
OPB360N51	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	1394 Pcs
OPB365N11	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	658 Pcs
OPB365N51	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	1916 Pcs
OPB365P55	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	1052 Pcs
OPB370N51	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	1250 Pcs
OPB370N55	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	90400 Pcs
OPB375N51	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	648 Pcs
OPB380N11Z	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	1100 Pcs
OPB380P51Z	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	Active	ROHS3 Compliant	651 Pcs

Engineering Selection Recommendations

The OPB882T55 is obsolete and no longer in active production. All listed substitute parts are manufactured by the same supplier (TT Electronics / Optek Technology) and maintain complete electrical and mechanical equivalence.

The primary distinction among substitutes is product status and regulatory compliance. OPB882T55Z is the direct successor variant, sharing the same base part number (OPB882) with updated RoHS3 compliance and active production status. This part represents the most direct replacement path.

Alternative part numbers (OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, OPB380P51Z) are parametric equivalents from different product series within the OPB optical sensor family. All maintain identical electrical performance and mechanical form factor. These alternatives are suitable for applications where the specific part number variant is not critical to system design.

All active substitutes carry ROHS3 compliance certification, whereas the original OPB882T55 is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements.

Inventory availability varies across substitute options, with OPB370N55 offering the highest stock level (90,400 units), providing supply chain flexibility for high-volume procurement.

Frequently Asked Questions (FAQ)

Q: Can OPB882T55Z be used as a direct replacement for OPB882T55?

A: Yes. OPB882T55Z is the active production variant of the same base part number (OPB882) and maintains identical electrical specifications (50 mA If, 30 mA Ic, 30 V VCE breakdown), sensing distance (0.125"), sensing method (through-beam), output configuration (phototransistor), operating temperature range (-40°C ~ 85°C), and mechanical form factor (chassis mount, module pre-wired). The primary difference is product status (active vs. obsolete) and RoHS3 compliance.

Q: Are the OPB360, OPB365, OPB370, OPB375, and OPB380 series parts interchangeable with OPB882T55?

A: Yes, from an electrical and mechanical standpoint. All listed parts share identical specifications for sensing distance, sensing method, output configuration, current ratings, voltage ratings, operating temperature, mounting type, and package configuration. These represent different product series within the OPB optical sensor family but are parametrically equivalent for through-beam phototransistor applications.

Q: What is the significance of the suffix letters and numbers in part numbers like OPB365N51 versus OPB365P55?

A: Suffix variations (such as N51, P55, N11Z, P51Z) indicate different internal configurations or packaging variants within the same base product series. However, all variants listed maintain identical electrical and mechanical parameters specified for substitution purposes. Specific suffix selection may be driven by internal design requirements or supplier availability, but electrical performance remains constant across all listed alternatives.

Q: Does the RoHS compliance difference between OPB882T55 and its substitutes affect compatibility?

A: RoHS compliance is a regulatory and procurement consideration rather than a functional compatibility issue. The original OPB882T55 is RoHS non-compliant, while all active substitutes are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, ROHS3-compliant alternatives are necessary. For applications without such regulatory constraints, both compliant and non-compliant variants are functionally equivalent.

Q: Which substitute part offers the best supply chain availability?

A: OPB370N55 currently maintains the highest inventory level at 90,400 units, followed by OPB365N51 at 1,916 units. For applications requiring immediate availability or high-volume procurement, OPB370N55 is the optimal choice from a supply perspective while maintaining full parametric equivalence.

Q: Are there any mechanical or form factor differences between the substitute parts?

A: No. All substitute parts share identical mechanical specifications: chassis mount configuration, module pre-wired package type, and 0.125" (3.18mm) sensing distance. Physical installation and integration requirements remain unchanged across all listed alternatives.

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