OPB802W55 Equivalent & Substitute Parts

Part Overview

The OPB802W55 is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This component is classified as obsolete, with 737 units available in new original stock. The sensor operates as an unamplified optical detector with a 0.375" (9.53mm) sensing distance and chassis mount configuration, designed for slot-type through-beam detection applications.

Due to the obsolete product status of OPB802W55, direct substitutes with active product status are necessary for new designs and ongoing production requirements. The substitute parts listed maintain identical electrical and mechanical parameters while offering improved availability and RoHS3 compliance.

Key Parameters

Parameter	Value
Sensing Distance	0.375" (9.53mm)
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 Range	-40°C ~ 80°C
Mounting Type	Chassis Mount
Package / Case	Module, Pre-Wired
Type	Unamplified
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for OPB802W55 is determined by strict equivalence across the following critical parameters:

Sensing Distance: 0.375" (9.53mm)
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 Range: -40°C ~ 80°C
Mounting Type: Chassis Mount
Package / Case: Module, Pre-Wired
Type: Unamplified

All substitute parts listed maintain 100% equivalence across these parameters. Substitutes are grouped by base product number (OPB800, OPB801, OPB810, OPB811, OPB812 series) with packaging variant designations (W51, W55) and bulk packaging configuration (Z suffix).

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 / Case	Type	RoHS Status	Inventory (Pcs)
OPB802W55	TT Electronics/Optek Technology	Obsolete	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	RoHS non-compliant	737
OPB802W55Z	TT Electronics/Optek Technology	Active	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1230
OPB800W51Z	TT Electronics/Optek Technology	Active	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	12796
OPB800W55Z	TT Electronics/Optek Technology	Active	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1842
OPB801W55Z	TT Electronics/Optek Technology	Active	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	3801
OPB810W51Z	TT Electronics/Optek Technology	Active	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1570
OPB810W55Z	TT Electronics/Optek Technology	Active	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1905
OPB811W55Z	TT Electronics/Optek Technology	Active	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	7163
OPB812W55Z	TT Electronics/Optek Technology	Active	0.375" (9.53mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1797

Engineering Selection Recommendations

OPB802W55Z is the primary direct substitute, offering identical electrical and mechanical specifications with active product status and ROHS3 compliance. This part maintains the OPB802 base product number with bulk packaging configuration.

For applications requiring alternative base product numbers within the OPB series, OPB800W55Z, OPB801W55Z, OPB810W55Z, OPB811W55Z, and OPB812W55Z are parametrically equivalent alternatives. All substitute parts are manufactured by TT Electronics/Optek Technology and carry ROHS3 compliance certification.

OPB800W51Z and OPB810W51Z are parametrically equivalent with W51 packaging variant designation, providing additional inventory availability (12796 and 1570 units respectively) for high-volume applications.

All substitute parts maintain unlimited moisture sensitivity level (MSL 1) and are classified as REACH Unaffected with EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can OPB802W55Z directly replace OPB802W55 in existing designs?

A: Yes. OPB802W55Z maintains 100% electrical and mechanical parameter equivalence with OPB802W55. The primary differences are active product status, ROHS3 compliance, and bulk packaging configuration (Z suffix). No circuit modifications are required.

Q: What is the difference between W51 and W55 packaging variants?

A: Both W51 and W55 variants maintain identical electrical specifications and sensing distance of 0.375" (9.53mm). The designation indicates packaging or connector configuration variants within the OPB series. Selection between W51 and W55 depends on mechanical interface requirements in the application.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed carry ROHS3 compliance certification. The original OPB802W55 is RoHS non-compliant. Substitution to any listed part upgrades compliance status for new production.

Q: What is the inventory status for each substitute part?

A: OPB800W51Z has the highest inventory at 12796 units. OPB811W55Z provides 7163 units. OPB801W55Z offers 3801 units. OPB810W55Z and OPB812W55Z each provide approximately 1800 units. OPB802W55Z (direct substitute) has 1230 units available.

Q: Are there any electrical parameter differences between the OPB800, OPB801, OPB810, OPB811, and OPB812 base product numbers?

A: No. All base product numbers in the OPB series listed as substitutes maintain identical electrical parameters: 50 mA maximum DC forward current, 30 mA maximum collector current, and 30 V maximum collector-emitter breakdown voltage. Differences are limited to base product designation and internal design variants that do not affect electrical performance.

Q: What certifications apply to all substitute parts?

A: All substitute parts carry ROHS3 compliance, REACH Unaffected status, and EAR99 export classification. Moisture sensitivity level is MSL 1 (Unlimited) for all parts.

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