OPB882L51 Equivalent & Substitute Parts

Part Overview

The OPB882L51 is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This component is classified as obsolete and operates with a 0.125" (3.18mm) sensing distance using through-beam detection methodology. The module features pre-wired chassis mount packaging and unamplified phototransistor output configuration. Due to its obsolete product status, equivalent and parametrically compatible substitute parts are available from the same manufacturer's active product lines.

Key Parameters

Parameter	Value
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
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the OPB882L51 is based on strict electrical and mechanical parameter matching across the following criteria:

Critical Matching Parameters:

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 maximum
Operating temperature range: -40°C to 85°C
Mounting type: Chassis mount
Package type: Module, pre-wired
Amplification type: Unamplified

All substitute parts listed maintain identical electrical performance specifications and mechanical compatibility. Substitutes are differentiated by product status (active vs. obsolete), RoHS compliance level, and packaging format (bulk vs. other configurations).

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Config	If (Max)	Ic (Max)	Vce Breakdown (Max)	Operating Temp	Mounting Type	Package Type	Type	RoHS Status	Inventory
OPB882L51	TT Electronics/Optek	Obsolete	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	RoHS Non-Compliant	676 Pcs
OPB882T51Z	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	865 Pcs
OPB360N51	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1394 Pcs
OPB365N11	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	658 Pcs
OPB365N51	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1916 Pcs
OPB365P55	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1052 Pcs
OPB370N51	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1250 Pcs
OPB370N55	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	90400 Pcs
OPB375N51	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	648 Pcs
OPB380N11Z	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1100 Pcs
OPB380P51Z	TT Electronics/Optek	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	651 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain complete electrical and mechanical equivalence to the OPB882L51. Selection between substitutes should be based on the following factors:

Product Status: The OPB882L51 is obsolete. All substitute parts listed carry active product status, ensuring long-term availability and continued manufacturer support.

RoHS Compliance: The original OPB882L51 is RoHS non-compliant. All substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and procurement.

Inventory Availability: OPB370N55 offers the highest inventory level at 90,400 pieces, followed by OPB365N51 at 1,916 pieces. Remaining substitutes maintain inventory levels between 648 and 1,394 pieces.

Direct Manufacturer Recommendation: OPB882T51Z is the manufacturer-recommended direct substitute, sharing the same base product number (OPB882) with the original part while providing active status and ROHS3 compliance.

Parametric Equivalents: OPB360N51, OPB365 series (N11, N51, P55), OPB370 series (N51, N55), OPB375N51, and OPB380 series (N11Z, P51Z) are parametrically equivalent alternatives that maintain all critical electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can OPB882L51 be directly replaced with OPB882T51Z?

A: Yes. OPB882T51Z is the manufacturer-recommended direct substitute. Both parts share identical electrical specifications, sensing distance, output configuration, and mounting type. The primary differences are product status (active vs. obsolete) and RoHS compliance level (ROHS3 vs. non-compliant).

Q: Are all listed substitutes electrically interchangeable?

A: Yes. All substitute parts maintain identical electrical performance: 50 mA maximum forward current, 30 mA maximum collector current, 30 V collector-emitter breakdown voltage, and -40°C to 85°C operating temperature range.

Q: What is the difference between OPB370N55 and OPB370N51?

A: Both parts are parametrically equivalent with identical electrical and mechanical specifications. The difference lies in packaging designation (N55 vs. N51 suffix) and inventory availability. OPB370N55 has significantly higher stock (90,400 pieces vs. 1,250 pieces).

Q: Does the pre-wired module packaging remain consistent across all substitutes?

A: Yes. All substitute parts maintain the same module, pre-wired package type with chassis mount configuration, ensuring mechanical compatibility in existing designs.

Q: Why is RoHS compliance important for this substitution?

A: RoHS compliance is a regulatory requirement for components used in new equipment designs and procurement in many jurisdictions. All active substitute parts are ROHS3 compliant, whereas the obsolete OPB882L51 is non-compliant. This ensures compliance with current environmental standards.

Q: Can I use OPB365 series parts as substitutes?

A: Yes. OPB365N11, OPB365N51, and OPB365P55 are parametrically equivalent to OPB882L51. All three variants maintain identical electrical specifications and through-beam sensing distance of 0.125" (3.18mm).

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