OPB983L11Z Equivalent & Substitute Parts

Part Overview

The OPB983L11Z 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 NPN open collector inverted output configuration. The part is currently active in production status with 896 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and operational parameters that ensure direct functional interchangeability in circuit applications.

Key Parameters

Parameter	Value
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	NPN - Open Collector, Inverted
Voltage Supply	4.75V ~ 5.25V
Current Supply	15 mA
Response Time	70ns
Operating Temperature	-40°C ~ 70°C
Mounting Type	Chassis Mount
Package Type	Module, Wire Leads
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the OPB983L11Z are qualified based on identical electrical and mechanical parameters across all critical specifications. The substitution logic is based on the following matching criteria:

Sensing distance: 0.125" (3.18mm)
Sensing method: Through-Beam
Output configuration: NPN - Open Collector, Inverted
Supply voltage range: 4.75V ~ 5.25V
Supply current: 15 mA
Response time: 70ns
Operating temperature range: -40°C ~ 70°C
Mounting type: Chassis Mount
Package type: Module, Wire Leads
Series: Photologic®
Compliance: ROHS3 Compliant, REACH Unaffected

All substitute parts listed maintain 100% parameter compatibility with the main part number across these specifications.

Parameter Comparison

Part Number	Manufacturer	Sensing Distance	Output Config	Supply Voltage	Supply Current	Response Time	Operating Temp	RoHS Status	Inventory (Pcs)
OPB983L11Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	896
OPB933W51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	3489
OPB933W55Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1243
OPB943W51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1180
OPB983L51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1900
OPB983P51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	2108
OPB983T51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	20199
OPB993L11Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1716
OPB993T51Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1436
OPB983T55Z	TT Electronics/Optek Technology	0.125" (3.18mm)	NPN - Open Collector, Inverted	4.75V ~ 5.25V	15 mA	70ns	-40°C ~ 70°C	ROHS3 Compliant	1009

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the OPB983L11Z. Selection among equivalent parts should be based on:

Product availability and inventory levels
Lead time requirements
Compliance certifications: All parts are ROHS3 compliant and REACH unaffected
Active production status: All substitute parts are currently active in production

The OPB983T51Z offers the highest inventory availability at 20,199 units, providing supply chain flexibility. The OPB933W51Z, OPB983P51Z, and OPB983L51Z also maintain substantial stock levels exceeding 1,900 units each.

Frequently Asked Questions (FAQ)

Q: Can OPB983L11Z be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts are electrically and mechanically equivalent. They share identical sensing distance, output configuration, supply voltage, current requirements, response time, operating temperature range, and package type. Direct substitution is supported without circuit modification.

Q: What determines if a part is a valid substitute for OPB983L11Z?

A: Valid substitutes must match all critical parameters: 0.125" (3.18mm) sensing distance, through-beam sensing method, NPN open collector inverted output, 4.75V to 5.25V supply voltage, 15 mA supply current, 70ns response time, -40°C to 70°C operating temperature, chassis mount configuration, and module wire leads package type.

Q: Are there differences in the base product numbers among substitutes?

A: Yes. The substitute parts include different base product numbers (OPB933, OPB943, OPB983, OPB993), but all variants listed maintain identical electrical specifications and are qualified as direct equivalents for the OPB983L11Z application.

Q: Do all substitute parts have the same compliance certifications?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance profile of the OPB983L11Z.

Q: Which substitute part has the best availability?

A: OPB983T51Z has the highest inventory level at 20,199 units in stock, followed by OPB983P51Z at 2,108 units and OPB983L51Z at 1,900 units.

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