OPB962L51 Equivalent & Substitute Parts

Part Overview

The OPB962L51 is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This through-beam optical sensor features a 0.125" (3.18mm) sensing distance and PCB mount configuration. The OPB962L51 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Active alternatives within the OPB962 and OPB972 base product families provide direct functional equivalence with current manufacturing availability.

Substiute Parts

OPB962L51
TT Electronics/Optek TechnologyIn Stock: 1124OPB962L51 Datasheet
OPB962L51
Current Part
OPB962N51
TT Electronics/Optek TechnologyIn Stock: 1438OPB962N51 Datasheet
OPB962N51
MFR Recommended
OPB962N55
TT Electronics/Optek TechnologyIn Stock: 2060OPB962N55 Datasheet
OPB962N55
MFR Recommended
OPB962T51
TT Electronics/Optek TechnologyIn Stock: 791OPB962T51 Datasheet
OPB962T51
MFR Recommended
OPB962T55
TT Electronics/Optek TechnologyIn Stock: 1157OPB962T55 Datasheet
OPB962T55
MFR Recommended
OPB972L51
TT Electronics/Optek TechnologyIn Stock: 2816OPB972L51 Datasheet
OPB972L51
MFR Recommended
OPB972N51
TT Electronics/Optek TechnologyIn Stock: 2981OPB972N51 Datasheet
OPB972N51
MFR Recommended
OPB972P51
TT Electronics / Optek TechnologyIn Stock: 1165OPB972P51 Datasheet
OPB972P51
MFR Recommended
OPB972T51
TT Electronics/Optek TechnologyIn Stock: 1134OPB972T51 Datasheet
OPB972T51
MFR Recommended
OPB972T55
TT Electronics/Optek TechnologyIn Stock: 1403OPB972T55 Datasheet
OPB972T55
MFR Recommended

Key Parameters

Parameter Value
Sensing Distance 0.125" (3.18mm)
Sensing Method Through-Beam
Output Configuration Totem Pole, Inverted
Mounting Type Through Hole
Current - Supply 15 mA
Voltage - Supply 4.75V ~ 5.25V
Response Time 70ns
Operating Temperature -40°C ~ 70°C
Package / Case PCB Mount
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the OPB962L51 is determined by electrical and mechanical parameter equivalence. All substitute parts maintain identical specifications across the following critical parameters: sensing distance (0.125"), sensing method (through-beam), output configuration (totem pole, inverted), mounting type (through hole), supply current (15 mA), supply voltage range (4.75V ~ 5.25V), response time (70ns), operating temperature range (-40°C ~ 70°C), and package type (PCB mount).

Substitute parts are grouped into two base product families: OPB962 series and OPB972 series. Within each family, packaging variants (designated by suffix codes such as N, T, L, and P) represent different tape and reel or bulk packaging configurations. These packaging differences do not affect electrical or mechanical performance and do not impact circuit-level compatibility.

All substitute parts maintain ROHS3 compliance, MSL rating of 1 (unlimited), and REACH unaffected status, ensuring regulatory and environmental compatibility with the original OPB962L51.

Parameter Comparison

Part Number Manufacturer Series Product Status Sensing Distance Sensing Method Output Configuration Current - Supply Voltage - Supply Response Time Operating Temperature RoHS Status Inventory (Pcs)
OPB962L51 TT Electronics/Optek Technology Photologic® Obsolete 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 1046
OPB962N51 TT Electronics/Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 1415
OPB962N55 TT Electronics/Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 2020
OPB962T51 TT Electronics/Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 692
OPB962T55 TT Electronics/Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 1060
OPB972L51 TT Electronics/Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 2714
OPB972N51 TT Electronics/Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 2905
OPB972P51 TT Electronics / Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 1135
OPB972T51 TT Electronics/Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 1034
OPB972T55 TT Electronics/Optek Technology Photologic® Active 0.125" (3.18mm) Through-Beam Totem Pole, Inverted 15 mA 4.75V ~ 5.25V 70ns -40°C ~ 70°C ROHS3 Compliant 1334

Engineering Selection Recommendations

All listed substitute parts are manufactured by TT Electronics/Optek Technology and maintain active product status, ensuring ongoing availability and manufacturing support. The OPB962 series (OPB962N51, OPB962N55, OPB962T51, OPB962T55) provides direct substitution within the same base product family as the obsolete OPB962L51. The OPB972 series (OPB972L51, OPB972N51, OPB972P51, OPB972T51, OPB972T55) offers equivalent electrical and mechanical performance within an alternative base product family.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Selection between OPB962 and OPB972 base families should be determined by existing design documentation and supply chain preferences, as both families provide identical electrical performance and mechanical compatibility.

Packaging suffix designations (N, T, L, P) indicate different distribution formats and do not affect circuit-level performance or PCB mount compatibility. Inventory availability varies across part numbers; OPB972N51 and OPB972L51 offer the highest stock levels at 2905 and 2714 units respectively.

Frequently Asked Questions (FAQ)

Q: Can OPB962 series parts be substituted with OPB972 series parts?

A: Yes. Both OPB962 and OPB972 base product families maintain identical electrical specifications, sensing distance, output configuration, supply current, supply voltage, response time, and operating temperature range. PCB mount compatibility is equivalent across both families.

Q: What do the suffix codes (N, T, L, P) represent?

A: Suffix codes designate packaging and distribution formats (tape and reel configurations or bulk packaging). These codes do not affect electrical performance, mechanical dimensions, or circuit compatibility. Selection is based on procurement and assembly requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory standards.

Q: Is the OPB962L51 still available?

A: The OPB962L51 is classified as obsolete. However, 1046 units remain in stock. For new designs and long-term production, active substitute parts from the OPB962 or OPB972 families are recommended.

Q: Do packaging differences affect PCB assembly compatibility?

A: No. Packaging suffix codes indicate distribution format only. All parts feature identical through-hole PCB mount configurations and electrical interfaces.

Q: Which substitute part offers the best inventory availability?

A: OPB972N51 offers the highest inventory level at 2905 units, followed by OPB972L51 at 2714 units.

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