OPB380P51Z Equivalent & Substitute Parts

Part Overview

The OPB380P51Z is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This unamplified optical sensor features a 0.125" (3.18mm) sensing distance and pre-wired chassis mount 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 specifications, and environmental operating parameters to ensure direct functional interchangeability in slot-type optical sensing applications.

Key Parameters

Parameter	OPB380P51Z 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	-40°C ~ 85°C
Mounting Type	Chassis Mount
Package / Case	Module, Pre-Wired
Type	Unamplified
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the OPB380P51Z are qualified based on the following criteria:

Primary Matching Parameters:

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 30 V
Mounting type: Chassis Mount
Package type: Module, Pre-Wired
Sensor type: Unamplified

Secondary Compliance Parameters:

RoHS Status: ROHS3 Compliant
MSL: 1 (Unlimited)
REACH Status: REACH Unaffected

All substitute parts listed maintain identical electrical performance specifications and mechanical form factors. Operating temperature ranges vary between -40°C ~ 85°C and -40°C ~ 80°C; parts with -40°C ~ 80°C range are suitable for applications not requiring the extended upper temperature limit of 85°C.

Parameter Comparison

Part Number	Manufacturer	Sensing Distance	Sensing Method	Output Config	If (Max)	Ic (Max)	VCE Breakdown (Max)	Operating Temp	Mounting	Package	Type	RoHS	Inventory
OPB380P51Z	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	651 Pcs
OPB360N51	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	1394 Pcs
OPB365N51	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	1916 Pcs
OPB370N51	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	1250 Pcs
OPB370N55	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	90400 Pcs
OPB380P55Z	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	3121 Pcs
OPB390P11Z	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 85°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	1366 Pcs
OPB829AZ	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	2154 Pcs
OPB829CZ	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	1185 Pcs
OPB829DZ	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	5613 Pcs
OPB830W11Z	TT Electronics/Optek	0.125" (3.18mm)	Through-Beam	Phototransistor	50 mA	30 mA	30 V	-40°C ~ 80°C	Chassis Mount	Module, Pre-Wired	Unamplified	ROHS3	2618 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the OPB380P51Z. Selection between equivalent parts should be based on the following factors:

Temperature Range Compatibility: Parts OPB360N51, OPB365N51, OPB370N51, OPB370N55, OPB380P55Z, and OPB390P11Z support the full operating temperature range of -40°C ~ 85°C, matching the OPB380P51Z specification. Parts OPB829AZ, OPB829CZ, OPB829DZ, and OPB830W11Z operate within -40°C ~ 80°C and are suitable for applications not requiring operation above 80°C.

Compliance and Certification: All substitute parts carry ROHS3 compliance, MSL 1 (Unlimited) rating, REACH Unaffected status, and identical ECCN and HTSUS classifications, ensuring regulatory equivalence.

Inventory Availability: OPB370N55 offers the highest inventory level at 90,400 pieces, followed by OPB829DZ at 5,613 pieces, providing supply chain flexibility for high-volume applications.

Functional Equivalence: All parts are unamplified through-beam phototransistor modules with identical current and voltage ratings, ensuring direct functional substitution in slot-type optical sensing circuits.

Frequently Asked Questions (FAQ)

Q: Can OPB829AZ, OPB829CZ, OPB829DZ, and OPB830W11Z be used as direct replacements for OPB380P51Z?

A: These parts are electrically and mechanically equivalent with one exception: their maximum operating temperature is -40°C ~ 80°C instead of -40°C ~ 85°C. They are suitable replacements for applications operating within the -40°C ~ 80°C range. For applications requiring operation up to 85°C, use OPB360N51, OPB365N51, OPB370N51, OPB370N55, OPB380P55Z, or OPB390P11Z.

Q: Are all substitute parts pre-wired modules?

A: Yes. All listed substitute parts are supplied as pre-wired chassis mount modules with identical package configuration to the OPB380P51Z.

Q: Do substitute parts have the same electrical ratings?

A: Yes. All substitute parts maintain identical maximum ratings: DC Forward Current (If) 50 mA, Collector Current (Ic) 30 mA, and Collector Emitter Breakdown Voltage 30 V.

Q: What is the sensing distance for all these parts?

A: All parts, including the OPB380P51Z and all substitutes, feature a 0.125" (3.18mm) through-beam sensing distance.

Q: Are all parts ROHS3 compliant?

A: Yes. The OPB380P51Z and all listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: Which substitute part has the best inventory availability?

A: OPB370N55 has the highest inventory at 90,400 pieces, making it the preferred choice for high-volume procurement when temperature range requirements are met.

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