OPB980L55 Equivalent & Substitute Parts

Part Overview

The OPB980L55 is an optical sensor from TT Electronics/Optek Technology's Photologic® series, designed as a through-beam sensor with 0.125" (3.18mm) sensing distance and wire lead module packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The sensor operates with totem pole buffer output configuration and is suitable for chassis mount applications requiring through-beam optical detection.

Key Parameters

Parameter	Value
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

Substitute Part Grouping Explanation

Substitution for the OPB980L55 is based on 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), supply current (15 mA), supply voltage range (4.75V ~ 5.25V), response time (70ns), operating temperature range (-40°C ~ 70°C), and package type (module with wire leads).

The primary distinction between the OPB980L55 and its substitutes lies in packaging format and product status. The OPB980L55 is obsolete and supplied in non-specified packaging, while all substitute parts are active products available in bulk packaging with RoHS3 compliance and REACH unaffected status.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	Supply Voltage	Supply Current	Response Time	Operating Temperature	RoHS Status	Inventory (Pcs)
OPB980L55	TT Electronics/Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	RoHS non-compliant	672
OPB980L55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	20399
OPB930W51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	2332
OPB940W51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	2247
OPB940W55Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1300
OPB980L11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1101
OPB980L51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1063
OPB980P11Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1055
OPB980P51Z	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	2412
OPB980P55Z	TT Electronics / Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	995
OPB980T11Z	TT Electronics / Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1067

Engineering Selection Recommendations

For new designs and system replacements, OPB980L55Z is the direct equivalent with highest inventory availability (20,399 pcs). This part maintains all electrical and mechanical specifications while offering active product status and RoHS3 compliance.

Alternative active substitutes from the OPB980 and OPB940 base product families provide equivalent functional performance. OPB980P51Z offers the second-highest inventory level (2,412 pcs) among alternatives. OPB940W55Z and OPB940W51Z represent functionally equivalent options from the OPB940 base product line.

All substitute parts carry ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. The original OPB980L55 is RoHS non-compliant and obsolete; transition to an active substitute is recommended for compliance with current procurement standards.

Frequently Asked Questions (FAQ)

Q: Can OPB980L55Z directly replace OPB980L55 in existing designs?

A: Yes. OPB980L55Z maintains identical electrical specifications (4.75V ~ 5.25V supply, 15 mA current, 70ns response time), mechanical configuration (0.125" sensing distance, through-beam method, totem pole buffer output), and package type (module with wire leads). The primary difference is active product status and RoHS3 compliance.

Q: What distinguishes the OPB980 series from the OPB940 series?

A: Both series maintain identical electrical and mechanical parameters specified for this application. Differences exist in base product designation only. All listed substitutes are functionally equivalent for through-beam optical sensing at 0.125" distance with the specified electrical characteristics.

Q: Are there packaging differences between substitute parts?

A: All substitute parts are supplied in bulk packaging with the "Z" suffix designation. The original OPB980L55 has unspecified packaging. All maintain the same module with wire leads case type suitable for chassis mount applications.

Q: Which substitute offers the best inventory availability?

A: OPB980L55Z provides the highest inventory level at 20,399 pcs, making it the most readily available direct equivalent for the obsolete OPB980L55.

Q: Do all substitutes meet current regulatory compliance?

A: Yes. All substitute parts listed carry ROHS3 compliance and REACH unaffected status. The original OPB980L55 is RoHS non-compliant. Substitution ensures compliance with current environmental and regulatory requirements.

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