OPB390P55Z Equivalent & Substitute Parts

Part Overview

The OPB390P55Z is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This unamplified sensor operates with a 0.125" (3.18mm) sensing distance and is designed for chassis mount applications in pre-wired module configuration. The part is active in production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and operational parameters to ensure direct functional replacement in circuit designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB390P55Z
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	Chassis Mount
Package / Case	Module, Pre-Wired
Type	Unamplified
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the OPB390P55Z are identified based on strict parametric equivalence across the following critical criteria:

Matching Parameters (Required for Substitution):

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
Mounting Type: Chassis Mount
Package / Case: Module, Pre-Wired
Type: Unamplified
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain identical electrical performance specifications and mechanical compatibility with the OPB390P55Z. Variations in operating temperature range and base product number designations do not affect functional substitution capability within the specified parameter set.

Parameter Comparison

Part Number	Manufacturer	Sensing Distance	Sensing Method	Output Configuration	If (Max)	Ic (Max)	VCE Breakdown (Max)	Operating Temperature	Mounting Type	Package / Case	Type	RoHS Status	MSL	Inventory (Pcs)
OPB390P55Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	852
OPB360N51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	1394
OPB365N51	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	1916
OPB370N51	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	1250
OPB370N55	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	90400
OPB380P55Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	3121
OPB390P11Z	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	1366
OPB829AZ	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	2154
OPB829CZ	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	1185
OPB829DZ	TT Electronics/Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	5613
OPB830W11Z	TT Electronics / Optek Technology	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3 Compliant	1 (Unlimited)	2618

Engineering Selection Recommendations

All listed substitute parts maintain full parametric equivalence with the OPB390P55Z across electrical performance and mechanical specifications. Selection among equivalent parts should be based on the following engineering considerations:

Operating Temperature Range: The OPB390P55Z, OPB360N51, OPB365N51, OPB370N51, OPB370N55, OPB380P55Z, and OPB390P11Z operate across -40°C to 85°C. The OPB829AZ, OPB829CZ, OPB829DZ, and OPB830W11Z operate across -40°C to 80°C. For applications requiring operation above 80°C, select from the first group.

Compliance and Certifications: All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.49.8000. All parts maintain MSL 1 (unlimited) moisture sensitivity level.

Product Status: All parts are active in production status, ensuring continued availability and supply chain stability.

Inventory Availability: OPB370N55 offers the highest inventory level at 90,400 pieces, followed by OPB829DZ at 5,613 pieces. Consider inventory levels for supply chain planning and lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can OPB829AZ, OPB829CZ, OPB829DZ, and OPB830W11Z be used as direct replacements for OPB390P55Z?

A: These parts are parametrically equivalent with one exception: operating temperature range is limited to -40°C to 80°C compared to -40°C to 85°C for the OPB390P55Z. For applications operating within -40°C to 80°C, these parts provide full functional equivalence. For applications requiring operation above 80°C, use OPB390P55Z, OPB360N51, OPB365N51, OPB370N51, OPB370N55, OPB380P55Z, or OPB390P11Z.

Q: What are the critical parameters that define substitution compatibility?

A: Substitution compatibility is determined by matching: sensing distance (0.125" / 3.18mm), sensing method (through-beam), output configuration (phototransistor), maximum forward current (50 mA), maximum collector current (30 mA), collector-emitter breakdown voltage (30 V), mounting type (chassis mount), package configuration (module, pre-wired), and sensor type (unamplified).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity level, matching the compliance profile of the OPB390P55Z.

Q: Does the base product number variation affect substitution?

A: Base product number variations (OPB360, OPB365, OPB370, OPB380, OPB390, OPB829, OPB830) reflect different optical sensor designs within the TT Electronics/Optek Technology product line. When all electrical and mechanical parameters match, these parts are functionally equivalent for the specified application parameters.

Q: What is the difference between OPB370N51 and OPB370N55?

A: Both parts are parametrically identical across all electrical and mechanical specifications. The designation suffix variation reflects different internal configurations or manufacturing batches. Both are direct substitutes for OPB390P55Z. OPB370N55 offers significantly higher inventory availability (90,400 pieces).

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