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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
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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