OPB890P55 Equivalent & Substitute Parts

Part Overview

The OPB890P55 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 phototransistor output configuration and pre-wired chassis mount packaging. The OPB890P55 is classified as obsolete product status. Due to its obsolescence, identifying equivalent and substitute parts with matching electrical and mechanical parameters is necessary for design continuity and procurement planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB890P55
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

Substitute parts for the OPB890P55 are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching 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: Module, Pre-Wired
Type: Unamplified

All substitute parts listed maintain identical electrical ratings and mechanical specifications. Substitutes are differentiated by product status (Active vs. Obsolete) and RoHS compliance status.

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
OPB890P55	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	1009 Pcs
OPB890P55Z	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	1091 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

Direct Replacement (Highest Priority): OPB890P55Z is the direct successor to OPB890P55, maintaining identical electrical and mechanical specifications while transitioning to Active product status and ROHS3 compliance. This part is the primary recommendation for new designs and obsolescence mitigation.

Parametric Equivalents (Secondary Options): OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, and OPB380P51Z are parametric equivalents that maintain all critical electrical and mechanical parameters. All substitute parts are Active product status with ROHS3 compliance, providing long-term supply assurance compared to the obsolete OPB890P55.

Compliance Consideration: The original OPB890P55 is RoHS non-compliant. All substitute parts listed are ROHS3 compliant, meeting current regulatory requirements for new applications and manufacturing environments.

Inventory Availability: OPB370N55 offers the highest inventory availability at 90,400 pieces, followed by OPB365N51 at 1,916 pieces. Remaining substitutes maintain adequate stock levels for production requirements.

Frequently Asked Questions (FAQ)

Q: Can OPB890P55Z be used as a direct replacement for OPB890P55? A: Yes. OPB890P55Z maintains identical electrical ratings (50 mA If max, 30 mA Ic max, 30 V VCE breakdown), sensing distance (0.125"), sensing method (through-beam), output configuration (phototransistor), operating temperature range (-40°C to 85°C), and mechanical packaging (chassis mount, module pre-wired). The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What distinguishes the parametric equivalent parts from OPB890P55Z? A: All parametric equivalents (OPB360N51, OPB365 series, OPB370 series, OPB375N51, OPB380 series) match the electrical and mechanical specifications of OPB890P55. Differences exist only in base product number designations and internal design variants, which do not affect functional compatibility in applications requiring the specified parameters.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant. The original OPB890P55 is RoHS non-compliant. Substitution to any listed part ensures compliance with current RoHS regulations.

Q: Does sensing distance remain constant across all substitute parts? A: Yes. All substitute parts maintain the 0.125" (3.18mm) sensing distance specification, ensuring mechanical and optical compatibility in existing slot configurations and mounting positions.

Q: Are there packaging differences between substitute parts? A: No. All substitute parts use identical packaging: Module, Pre-Wired configuration with Chassis Mount mounting type. Pre-wired connections and mechanical form factor remain consistent across all listed substitutes.

Q: Which substitute part offers the best long-term availability? A: OPB370N55 provides the highest inventory level at 90,400 pieces, combined with Active product status and ROHS3 compliance, offering optimal long-term supply security for production planning.

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