OPB862T55 Equivalent & Substitute Parts

Part Overview

The OPB862T55 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 designed for slot-type optical sensing applications with a 0.125" (3.18mm) sensing distance. The OPB862T55 is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Active alternatives with identical electrical and mechanical parameters are available from the same manufacturer series.

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	Through Hole
Package / Case	PCB Mount
Type	Unamplified
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the OPB862T55 are qualified based on matching all critical electrical and mechanical parameters. The substitution logic is based on the following key 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: Through Hole
Package / Case: PCB Mount
Type: Unamplified

All substitute parts listed maintain identical specifications across these parameters, ensuring functional and electrical compatibility. The primary distinction between the OPB862T55 and its substitutes is product status: the OPB862T55 is obsolete, while all listed substitutes are active products.

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
OPB862T55	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	1125 Pcs
OPB862T51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	1113 Pcs
OPB360L11	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	742 Pcs
OPB360L51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	688 Pcs
OPB360L55	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	1118 Pcs
OPB360T51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	2007 Pcs
OPB360T55	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	769 Pcs
OPB365L51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	1132 Pcs
OPB365T55	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	4496 Pcs
OPB370L55	TT Electronics / Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	909 Pcs
OPB370T11	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	ROHS3 Compliant	909 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the OPB862T55. Selection among the active alternatives should be based on the following factors:

Product Status: All substitute parts are classified as active products, ensuring ongoing manufacturer support and availability. The OPB862T55 is obsolete and should be replaced in new designs.

Compliance Certifications: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the original part.

Inventory Availability: OPB360T51 offers the highest inventory level at 2007 pieces, followed by OPB365T55 at 4496 pieces. These options provide the greatest supply security for production requirements.

Manufacturer Continuity: All substitute parts are manufactured by TT Electronics/Optek Technology, maintaining design continuity and technical support consistency.

Frequently Asked Questions (FAQ)

Q: Can OPB862T51 be used as a direct replacement for OPB862T55?

A: Yes. OPB862T51 is an active product variant of the same base product number (OPB862) with identical electrical and mechanical parameters. The difference in the part number suffix reflects packaging or internal configuration variations that do not affect functional compatibility.

Q: What is the difference between OPB360 and OPB365 series substitutes?

A: Both OPB360 and OPB365 series parts maintain identical electrical specifications and sensing parameters as the OPB862T55. The series designation reflects different product lines within the TT Electronics/Optek Technology optical sensor portfolio, but all listed variants are functionally equivalent for through-beam phototransistor applications.

Q: Are all substitute parts suitable for the same PCB footprint?

A: All substitute parts share identical mounting type (Through Hole) and package configuration (PCB Mount), ensuring mechanical compatibility with existing PCB designs. Physical verification of pin spacing and component outline is recommended during design transition.

Q: What is the significance of the suffix letters in part numbers (L, T) and numbers (11, 51, 55)?

A: The suffix designations indicate internal configuration or packaging variants within the product family. All listed variants maintain the same electrical parameters and sensing distance specified for the OPB862T55.

Q: Are there any temperature or compliance differences between the substitute parts?

A: No. All substitute parts operate across the identical temperature range (-40°C ~ 85°C) and maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original OPB862T55.

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