OPB980N51Z Equivalent & Substitute Parts

Part Overview

The OPB980N51Z is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This through-beam optical sensor operates at 0.125" (3.18mm) sensing distance with wire lead connections and chassis mount configuration. The part is currently obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new designs requiring compatible optical sensing functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB980N51Z
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Series	Photologic®
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Totem Pole, Buffer
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
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the OPB980N51Z are qualified based on strict electrical and mechanical parameter equivalence within the Photologic® optical sensor family. All substitute parts maintain identical specifications across the following critical parameters:

Sensing Distance: 0.125" (3.18mm)
Sensing Method: Through-Beam
Output Configuration: Totem Pole, Buffer
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

Substitute parts differ only in internal optical configuration and packaging format (Bulk packaging vs. original packaging), with all variants maintaining full functional and electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	Current - Supply	Voltage - Supply	Response Time	Operating Temperature	RoHS Status	Inventory (Pcs)
OPB980N51Z	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	993
OPB930W51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	2332
OPB940W51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	2247
OPB940W55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1300
OPB980L11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1101
OPB980L51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1063
OPB980L55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	20399
OPB980P11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1055
OPB980P51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	2412
OPB980P55Z	TT Electronics / Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	995
OPB980T11Z	TT Electronics / Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1067

Engineering Selection Recommendations

All listed substitute parts are active production components from TT Electronics/Optek Technology, providing superior availability compared to the obsolete OPB980N51Z. Each substitute maintains full compliance with ROHS3 and REACH requirements, ensuring regulatory compatibility for new designs and system upgrades.

Selection among substitute parts should be based on inventory availability and internal optical configuration requirements specific to the application. All parts deliver identical electrical performance, supply current, voltage tolerance, response time, and operating temperature range. The OPB980L55Z offers the highest inventory level at 20,399 pieces, providing optimal supply chain stability for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can OPB980N51Z be directly replaced with any of the listed substitute parts?

A: Yes. All substitute parts maintain identical electrical specifications, sensing distance, output configuration, and operating parameters. Direct substitution is supported without circuit modification.

Q: What is the difference between OPB980L55Z and OPB980P51Z?

A: Both parts share identical electrical and mechanical specifications. Differences exist only in internal optical configuration and packaging format. Selection depends on application-specific optical requirements and packaging preferences.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant certification and REACH Unaffected status, meeting current environmental and regulatory requirements.

Q: Does the wire lead configuration remain consistent across all substitute parts?

A: Yes. All substitute parts maintain Module, Wire Leads packaging and Chassis Mount configuration identical to the original OPB980N51Z.

Q: What is the supply voltage tolerance for these optical sensors?

A: All parts operate within 4.75V to 5.25V supply voltage range with 15 mA supply current and 70ns response time across the full -40°C to 70°C operating temperature range.

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