OPB360L51 Equivalent & Substitute Parts

Part Overview

The OPB360L51 is an optical sensor manufactured by TT Electronics/Optek Technology, designed as a through-beam phototransistor with PCB mount configuration. This component operates at a sensing distance of 0.125" (3.18mm) and is classified as an unamplified optical sensor. The part is currently active in production with 688 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, ensuring functional compatibility in slot-type optical sensing applications.

Key Parameters

Parameter	OPB360L51 Specification
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)

Substitute Part Grouping Explanation

Substitute parts for the OPB360L51 are qualified based on strict parameter equivalence across the following criteria:

Sensing distance: 0.125" (3.18mm)
Sensing method: Through-Beam
Output configuration: Phototransistor
Current ratings: If (Max) 50 mA, Ic (Max) 30 mA
Voltage rating: Collector Emitter Breakdown (Max) 30 V
Operating temperature range: -40°C ~ 85°C
Mounting type: Through Hole
Package type: PCB Mount
Sensor type: Unamplified
Regulatory compliance: ROHS3 Compliant, REACH Unaffected

All identified substitute parts maintain identical electrical performance characteristics and mechanical compatibility with the OPB360L51. Substitution is valid across all base product numbers (OPB360, OPB365, OPB370, OPB380, OPB390) when these parameters remain constant.

Parameter Comparison

Part Number	Manufacturer	Sensing Distance	Sensing Method	Output Configuration	If (Max)	Ic (Max)	Vce Breakdown (Max)	Operating Temperature	Mounting Type	Package	Type	Inventory
OPB360L51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	688 Pcs
OPB360T51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	2007 Pcs
OPB365T55	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	4496 Pcs
OPB370L55	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	909 Pcs
OPB370T51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	909 Pcs
OPB370T55	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	1112 Pcs
OPB380T11Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	1111 Pcs
OPB380T51Z	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	2503 Pcs
OPB380T55Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	1036 Pcs
OPB390L11Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	1137 Pcs
OPB390L51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Through Hole	PCB Mount	Unamplified	1025 Pcs

Engineering Selection Recommendations

All substitute parts listed maintain active product status and full compliance with ROHS3 and REACH regulations. Selection among equivalent parts should be based on inventory availability and lead time requirements. OPB365T55 offers the highest inventory level at 4496 units, followed by OPB380T51Z at 2503 units. All parts are manufactured by TT Electronics/Optek Technology and carry identical electrical ratings, thermal operating range, and mechanical mounting specifications. No performance degradation occurs when substituting between any listed part numbers.

Frequently Asked Questions (FAQ)

Q: Can OPB360L51 be directly replaced with OPB360T51? A: Yes. Both parts share identical electrical parameters, sensing distance, output configuration, and mounting specifications. The difference in part number suffix does not affect functional compatibility.

Q: Are all substitute parts suitable for the same PCB layout? A: Yes. All substitute parts maintain through-hole mounting type and PCB mount package configuration, ensuring mechanical compatibility with existing PCB designs without layout modifications.

Q: What determines if a part is a valid substitute for OPB360L51? A: Valid substitutes must match all of the following: 0.125" (3.18mm) sensing distance, through-beam sensing method, phototransistor output, 50 mA maximum forward current, 30 mA maximum collector current, 30 V collector-emitter breakdown voltage, -40°C to 85°C operating temperature range, through-hole mounting, PCB mount package, and unamplified sensor type.

Q: Do all substitute parts have the same regulatory compliance? A: Yes. All listed parts are ROHS3 compliant and REACH unaffected, meeting identical environmental and regulatory requirements.

Q: Is there a performance difference between OPB360, OPB370, OPB380, and OPB390 base product numbers? A: No. Within this substitute list, all base product numbers maintain identical electrical and mechanical specifications. Differences in part number designation do not affect functional performance in applications requiring the specified parameters.

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