OPB832W51Z Equivalent & Substitute Parts

Part Overview

The OPB832W51Z 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 specifications, mechanical compatibility, and operational parameters to ensure direct functional replacement in circuit designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB832W51Z
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 ~ 80°C
Mounting Type	Chassis Mount
Package / Case	Module, Pre-Wired
Type	Unamplified
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the OPB832W51Z are qualified based on the following critical parameters that determine functional equivalence:

Sensing Distance: 0.125" (3.18mm) — determines optical path and detection range
Sensing Method: Through-Beam — defines the optical detection architecture
Output Configuration: Phototransistor — specifies the output signal type
Current Ratings: If (Max) 50 mA and Ic (Max) 30 mA — ensures electrical compatibility
Voltage Rating: Collector Emitter Breakdown 30 V — defines maximum operating voltage
Mounting Type: Chassis Mount — ensures mechanical fit
Package Configuration: Module, Pre-Wired — confirms form factor compatibility
Type: Unamplified — maintains signal processing characteristics
Compliance: ROHS3 Compliant, MSL 1 — ensures regulatory and environmental compatibility

All substitute parts listed maintain these core parameters, allowing direct functional replacement in applications designed for the OPB832W51Z.

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	Inventory
OPB832W51Z	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	934 Pcs
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	1394 Pcs
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	1916 Pcs
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	1250 Pcs
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	90400 Pcs
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	3121 Pcs
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	1366 Pcs
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	2154 Pcs
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	1185 Pcs
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	5613 Pcs
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	2618 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the OPB832W51Z. Selection among these equivalents should be based on:

Product Status and Availability: All substitute parts are active in production status with ROHS3 compliance and MSL 1 rating, ensuring regulatory alignment and environmental stability equivalent to the primary part.

Operating Temperature Range: The OPB832W51Z operates within -40°C to 80°C. Substitute parts OPB360N51, OPB365N51, OPB370N51, OPB370N55, and OPB380P55Z extend the upper operating limit to 85°C, providing enhanced thermal margin for applications requiring extended temperature performance. Parts OPB829AZ, OPB829CZ, OPB829DZ, and OPB830W11Z maintain the -40°C to 80°C range identical to the primary part.

Inventory Availability: OPB370N55 offers the highest inventory level at 90,400 pieces, followed by OPB365N51 at 1,916 pieces. These options provide supply chain flexibility for high-volume production requirements.

Compliance and Certifications: All parts carry identical ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification, ensuring no regulatory substitution barriers.

Frequently Asked Questions (FAQ)

Q: Can OPB360N51 directly replace OPB832W51Z in existing designs?

A: Yes. OPB360N51 maintains identical electrical specifications (50 mA If, 30 mA Ic, 30 V VCE breakdown), sensing distance (0.125"), sensing method (through-beam), output configuration (phototransistor), mounting type (chassis mount), and package format (module, pre-wired). The extended operating temperature range (-40°C to 85°C versus -40°C to 80°C) provides additional thermal margin without affecting circuit compatibility.

Q: What is the difference between OPB370N51 and OPB370N55?

A: Both parts are functionally equivalent with identical electrical and mechanical parameters. The difference lies in packaging or internal configuration denoted by the suffix variation (N51 versus N55). Both maintain the same sensing distance, current ratings, voltage specifications, and operating temperature range (-40°C to 85°C).

Q: Are all substitute parts pre-wired modules?

A: Yes. All listed substitute parts are configured as module, pre-wired packages with chassis mount installation, matching the OPB832W51Z form factor and installation requirements.

Q: Which substitute part offers the best inventory availability?

A: OPB370N55 provides the highest stock level at 90,400 pieces, making it the optimal choice for applications requiring immediate availability or high-volume procurement.

Q: Do substitute parts maintain the same compliance certifications?

A: Yes. All substitute parts carry ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification identical to the OPB832W51Z, ensuring no regulatory substitution barriers or compliance reclassification requirements.

Q: Can I use OPB829DZ as a substitute if my application operates at 85°C?

A: OPB829DZ operates within -40°C to 80°C, which does not extend to 85°C. For applications requiring 85°C operation, select from OPB360N51, OPB365N51, OPB370N51, OPB370N55, or OPB380P55Z, which all support -40°C to 85°C operating range.

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