OPB380L11Z Equivalent & Substitute Parts

Part Overview

The OPB380L11Z 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 currently listed as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement.

The OPB380L11Z operates as an unamplified optical sensor with a 0.125" (3.18mm) sensing distance, designed for through-beam detection applications. The obsolete status of this part requires engineers to evaluate active alternatives that maintain electrical and mechanical compatibility with existing designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB380L11Z
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
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the OPB380L11Z is determined by strict 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

All substitute parts listed maintain identical electrical ratings and mechanical specifications. The primary distinction between the OPB380L11Z and its active equivalents is product status. The OPB380L11Z is obsolete, while substitute parts are active and available for procurement.

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	Type	RoHS Status
OPB380L11Z	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
OPB380T11Z	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
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
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
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
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
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
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
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
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
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

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical equivalence to the OPB380L11Z. Selection among active alternatives should be based on the following criteria:

Product Status: All substitute parts are active and available for procurement, eliminating obsolescence risk associated with the OPB380L11Z.

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

Recommended Primary Substitute: OPB380T11Z is the manufacturer-recommended direct substitute, offering identical electrical specifications and mechanical configuration with active product status.

Alternative Equivalents: OPB360 series (OPB360L11, OPB360L51, OPB360L55, OPB360T51, OPB360T55), OPB365 series (OPB365L51, OPB365T55), and OPB370 series (OPB370L55, OPB370T11) provide parametric equivalence and are suitable for applications where the OPB380L11Z was specified.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between OPB380L11Z and its substitutes?

A: The OPB380L11Z is obsolete, while all listed substitutes are active. Electrical ratings, mechanical specifications, and compliance certifications are identical across all parts.

Q: Can OPB380T11Z be used as a direct replacement for OPB380L11Z?

A: Yes. OPB380T11Z is the manufacturer-recommended substitute with identical electrical and mechanical specifications. The primary distinction is product status and packaging format.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status.

Q: What determines compatibility between OPB380L11Z and substitute parts?

A: Compatibility is determined by equivalence across sensing distance (0.125"), sensing method (through-beam), output configuration (phototransistor), current ratings (If 50 mA max, Ic 30 mA max), voltage rating (30 V max), operating temperature range (-40°C to 85°C), mounting type (through hole), and package type (PCB mount).

Q: Are there inventory considerations when selecting a substitute?

A: Inventory levels vary across substitute parts. OPB365T55 has the highest inventory (4496 pcs), while OPB360L51 has 688 pcs. Procurement timelines should account for available stock levels.

Q: Can substitute parts be used interchangeably in existing designs?

A: Yes. All substitute parts maintain identical electrical and mechanical specifications, allowing direct substitution in designs originally specified for OPB380L11Z without circuit modification.

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