OPB992L55Z Equivalent & Substitute Parts

Part Overview

The OPB992L55Z is a through-beam optical sensor module manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This 0.125" (3.18mm) sensing distance module features wire leads and chassis mount configuration, designed for applications requiring precise object detection through optical beam interruption. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing system support and new designs requiring compatible functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB992L55Z
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Series	Photologic®
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Totem Pole, Inverted
Mounting Type	Chassis Mount
Current - Supply	15 mA
Voltage - Supply	4.75V ~ 5.25V
Response Time	70ns
Operating Temperature	-40°C ~ 70°C
Package / Case	Module, Wire Leads
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.49.8000

Substitute Part Grouping Explanation

Substitute parts for the OPB992L55Z are qualified based on strict electrical and mechanical parameter matching within the Photologic® optical sensor family. All substitute candidates maintain identical specifications across the following critical parameters:

Sensing Distance: 0.125" (3.18mm)
Sensing Method: Through-Beam
Output Configuration: Totem Pole, Inverted
Mounting Type: Chassis Mount
Supply Current: 15 mA
Supply Voltage: 4.75V ~ 5.25V
Response Time: 70ns
Operating Temperature Range: -40°C ~ 70°C
Package Type: Module, Wire Leads
Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

Substitution is determined by base product number variants (OPB932, OPB942, OPB982, OPB992) combined with suffix designations that indicate packaging and lead configuration options. All qualified substitutes are active products with current manufacturing status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	Supply Voltage	Supply Current	Response Time	Operating Temperature	Package / Case	RoHS Status
OPB992L55Z	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB932W51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB932W55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB942W55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB982P11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB982P51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB982T51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB982T55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB992L51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB992N55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant
OPB992P51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	Module, Wire Leads	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the OPB992L55Z. Selection among active alternatives should prioritize product availability and supply chain status. The OPB992P51Z offers the highest inventory level (69,800 units), providing optimal supply security for high-volume applications. The OPB992N55Z (20,299 units) and OPB982P51Z (1,937 units) represent secondary options with substantial stock availability.

All substitute candidates carry identical ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part. The transition from the obsolete OPB992L55Z to any active substitute requires no circuit redesign, as all electrical parameters, response characteristics, and output configurations remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can OPB992L55Z be directly replaced with OPB992P51Z? A: Yes. Both parts share identical electrical specifications, sensing distance, output configuration, and operating parameters. The suffix variation indicates packaging designation only, with no functional difference in circuit operation.

Q: What is the difference between OPB932, OPB942, OPB982, and OPB992 base numbers? A: The base product numbers represent different sensor variants within the Photologic® series. All qualified substitutes maintain the same 0.125" (3.18mm) sensing distance, through-beam method, totem pole inverted output, and electrical characteristics specified for the OPB992L55Z.

Q: Are there any compliance differences between substitute parts? A: No. All substitute parts carry identical ROHS3 compliance, REACH unaffected status, and regulatory certifications (ECCN: EAR99, HTSUS: 8541.49.8000).

Q: Which substitute part has the best availability? A: OPB992P51Z maintains the highest inventory (69,800 units), followed by OPB992N55Z (20,299 units). Both are active products with established supply chains.

Q: Do substitute parts require PCB layout modifications? A: No. All substitute parts use identical module wire lead packaging and chassis mount configuration, requiring no changes to mechanical mounting or electrical routing.

Q: What is the operating temperature range for all substitutes? A: All substitute parts operate across -40°C to 70°C, matching the original OPB992L55Z specification.

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