OPB829C Equivalent & Substitute Parts

Part Overview

The OPB829C is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This unamplified sensor features a 0.125" (3.18mm) sensing distance and pre-wired chassis mount configuration. The OPB829C is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. Direct manufacturer equivalents and parametric alternatives are available from the same manufacturer with active product status and improved compliance certifications.

Key Parameters

Parameter	Value
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 Range	-40°C ~ 80°C
Mounting Type	Chassis Mount
Package / Case	Module, Pre-Wired
Type	Unamplified
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the OPB829C are grouped into two categories based on substitution type:

Direct Manufacturer Substitute: OPB829CZ maintains identical electrical and mechanical parameters to the OPB829C. This part differs only in packaging (Bulk vs. standard) and product status (Active vs. Obsolete). RoHS3 compliance is improved over the original part.

Parametric Equivalents: OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, and OPB380P51Z are classified as parametric equivalents. These parts maintain all critical electrical parameters: 50 mA maximum DC forward current, 30 mA maximum collector current, 30 V maximum collector-emitter breakdown voltage, 0.125" (3.18mm) sensing distance, through-beam sensing method, phototransistor output configuration, chassis mount configuration, and pre-wired module packaging. Operating temperature ranges extend to -40°C ~ 85°C on parametric equivalents, providing improved thermal performance. All substitute parts carry Active product status and RoHS3 compliance.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	If (Max)	Ic (Max)	VCE Breakdown (Max)	Operating Temp	Mounting Type	Package / Case	Type	RoHS Status	Inventory
OPB829C	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	RoHS non-compliant	1088 Pcs
OPB829CZ	TT Electronics/Optek Technology	Active	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
OPB360N51	TT Electronics/Optek Technology	Active	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
OPB365N11	TT Electronics/Optek Technology	Active	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	658 Pcs
OPB365N51	TT Electronics / Optek Technology	Active	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
OPB365P55	TT Electronics/Optek Technology	Active	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	1052 Pcs
OPB370N51	TT Electronics/Optek Technology	Active	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	Active	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
OPB375N51	TT Electronics/Optek Technology	Active	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	648 Pcs
OPB380N11Z	TT Electronics/Optek Technology	Active	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	1100 Pcs
OPB380P51Z	TT Electronics/Optek Technology	Active	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	651 Pcs

Engineering Selection Recommendations

OPB829CZ is the primary direct substitute for OPB829C. Both parts maintain identical electrical and mechanical specifications. OPB829CZ carries Active product status and RoHS3 compliance, addressing the obsolescence and regulatory compliance limitations of the original OPB829C.

Parametric equivalents OPB360N51, OPB365N11, OPB365N51, OPB365P55, OPB370N51, OPB370N55, OPB375N51, OPB380N11Z, and OPB380P51Z are suitable for applications where the extended operating temperature range (-40°C ~ 85°C) provides system benefit. All parametric equivalents maintain the critical electrical parameters and mechanical form factor of the OPB829C while offering Active product status and RoHS3 compliance.

All substitute parts are manufactured by TT Electronics/Optek Technology, ensuring consistent design heritage and manufacturing standards. Inventory availability is robust across all substitute options, with OPB370N55 offering the highest stock level at 90,400 pieces.

Frequently Asked Questions (FAQ)

Q: Can OPB829CZ be used as a direct replacement for OPB829C?

A: Yes. OPB829CZ is a direct manufacturer substitute with identical electrical and mechanical parameters. The primary differences are packaging type (Bulk) and product status (Active vs. Obsolete). RoHS3 compliance is improved.

Q: What is the difference between OPB829CZ and the parametric equivalents?

A: OPB829CZ maintains the exact operating temperature range of the OPB829C (-40°C ~ 80°C). Parametric equivalents extend the upper operating temperature limit to 85°C. All parts share identical sensing distance, current ratings, voltage ratings, output configuration, and mounting type.

Q: Are all substitute parts pre-wired modules?

A: Yes. All substitute parts listed maintain the pre-wired module configuration with chassis mount packaging, matching the OPB829C form factor.

Q: What are the key parameters that determine substitutability?

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

Q: Do all substitute parts meet RoHS compliance?

A: Yes. All substitute parts carry RoHS3 compliance certification. The original OPB829C is RoHS non-compliant.

Q: Which substitute part has the highest inventory availability?

A: OPB370N55 has the highest inventory level at 90,400 pieces in stock.

Q: Can parametric equivalents be used in applications requiring the original -40°C ~ 80°C temperature range?

A: Yes. Parametric equivalents rated for -40°C ~ 85°C are fully compatible with applications requiring -40°C ~ 80°C operation, as the extended range encompasses the lower specification.

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