OPB828B Equivalent & Substitute Parts

Part Overview

The OPB828B 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 OPB828B is currently listed as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB828B
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	Through Hole
Package / Case	PCB Mount
Type	Unamplified
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the OPB828B are identified based on strict parametric equivalence across the following critical 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
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

All substitute parts listed maintain identical electrical and mechanical specifications to the OPB828B. The primary distinction between substitute options is product status (active vs. obsolete) and packaging configuration (bulk vs. other formats).

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	MSL	REACH Status
OPB828B	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	1 (Unlimited)	REACH Unaffected
OPB828D	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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected
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	1 (Unlimited)	REACH Unaffected

Engineering Selection Recommendations

The OPB828B is obsolete and no longer in active production. All listed substitute parts maintain identical electrical and mechanical specifications, ensuring direct functional equivalence in circuit applications. Selection among available substitutes should be based on:

Product Status: OPB828D is the manufacturer-recommended direct replacement, carrying active product status with confirmed availability. All OPB360, OPB365, and OPB370 series variants are active products with established supply chains.

Compliance & Certifications: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original OPB828B specifications. Moisture sensitivity level remains constant at MSL 1 (Unlimited) across all options.

Availability & Inventory: Substitute parts demonstrate varying inventory levels. OPB360T51 shows the highest inventory at 2007 units, while OPB365T55 provides 4496 units. Selection should account for procurement lead times and supply continuity requirements.

Frequently Asked Questions (FAQ)

Q: Can OPB828D be used as a direct replacement for OPB828B?

A: Yes. OPB828D is the manufacturer-recommended equivalent with identical electrical and mechanical parameters. The primary difference is product status: OPB828D is active while OPB828B is obsolete.

Q: Are all listed substitutes electrically equivalent?

A: All substitute parts listed maintain identical specifications for sensing distance (0.125"), sensing method (through-beam), output configuration (phototransistor), maximum forward current (50 mA), maximum collector current (30 mA), collector-emitter breakdown voltage (30 V), and operating temperature range (-40°C to 85°C).

Q: What is the difference between OPB360, OPB365, and OPB370 series parts?

A: These series variants maintain identical electrical and mechanical specifications as defined in this reference. Differences are limited to part number designation and internal manufacturing variants. All are parametrically equivalent to OPB828B.

Q: Does packaging format affect electrical performance?

A: No. All substitute parts use identical PCB mount through-hole packaging. Packaging designation (bulk) refers to order format and does not affect component electrical characteristics or circuit performance.

Q: Are compliance certifications maintained across all substitutes?

A: Yes. All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity level, matching OPB828B certifications.

Q: Which substitute part should be selected for new designs?

A: OPB828D is the manufacturer-recommended choice for new designs, as it is the direct active equivalent with confirmed long-term availability. OPB360 and OPB365 series parts are alternative active options with established supply channels.

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