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OPB970L51 Equivalent & Substitute Parts
Part Overview
The OPB970L51 is a through-beam optical sensor manufactured by TT Electronics / Optek Technology, part of the Photologic® series. This component is designed for 0.125" (3.18mm) PCB mount applications with totem pole buffer output configuration. The OPB970L51 is currently classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | OPB970L51 |
| 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 | Through Hole |
| Voltage - Supply | 4.75V ~ 5.25V |
| Current - Supply | 15 mA |
| Response Time | 70ns |
| Operating Temperature | -40°C ~ 70°C |
| Package / Case | PCB Mount |
| 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 OPB970L51 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: Through Hole
- Voltage Supply Range: 4.75V ~ 5.25V
- Current Supply: 15 mA
- Response Time: 70ns
- Operating Temperature Range: -40°C ~ 70°C
- Package / Case: PCB Mount
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
- REACH Status: REACH Unaffected
The substitute parts differ only in packaging configuration (bulk vs. original packaging) and product status (active vs. obsolete). All substitute parts are currently in active production status, ensuring long-term availability and supply chain continuity.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Sensing Distance | Sensing Method | Output Configuration | Voltage Supply | Current Supply | Response Time | Operating Temperature | RoHS Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| OPB970L51 | 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 | ROHS3 Compliant | 870 |
| OPB930L51 | 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 | 1285 |
| OPB930L55 | 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 | 672 |
| OPB960L51 | 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 | 1073 |
| OPB960N11 | 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 | 1052 |
| OPB960N51 | 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 | 8810 |
| OPB960N55 | 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 | 1745 |
| OPB960P51 | 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 | 1144 |
| OPB960T11 | 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 | 1065 |
| OPB960T51 | 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 | 20199 |
| OPB960T55 | 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 | 1239 |
Engineering Selection Recommendations
All listed substitute parts maintain full electrical and mechanical compatibility with the OPB970L51. Selection among substitute parts should be based on the following factors:
Product Status: All substitute parts are in active production status, ensuring continued availability and support from TT Electronics / Optek Technology. The OPB970L51 is obsolete and should be replaced with an active equivalent.
Compliance Certifications: All substitute parts carry identical RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.
Supply Availability: OPB960T51 offers the highest inventory level (20,199 pcs), followed by OPB960N51 (8,810 pcs), providing optimal supply chain security for high-volume applications.
Packaging Considerations: All substitute parts are supplied in bulk packaging. Original packaging availability should be confirmed with the supplier if required for specific procurement workflows.
Frequently Asked Questions (FAQ)
Q: Can OPB960T51 directly replace OPB970L51 in existing designs?
A: Yes. OPB960T51 maintains identical electrical specifications (4.75V ~ 5.25V supply, 15 mA current, 70ns response time) and mechanical parameters (0.125" sensing distance, through-beam configuration, totem pole buffer output, through-hole PCB mount). No circuit modifications are required.
Q: What is the difference between OPB930 and OPB960 series substitutes?
A: Both OPB930 and OPB960 series parts meet all electrical and mechanical parameter requirements for OPB970L51 substitution. The difference lies in the base product number designation within the Photologic® family. Selection between series should be based on supplier availability and procurement preference.
Q: Are there differences in the suffix designations (L51, L55, N11, N51, N55, P51, T11, T51, T55)?
A: The suffix designations represent different variants within the Photologic® optical sensor family. All listed variants maintain identical electrical and mechanical specifications required for OPB970L51 substitution. Suffix differences do not affect functional compatibility in applications designed for the OPB970L51.
Q: Does bulk packaging affect component performance?
A: No. Bulk packaging is a supply format only and does not affect electrical performance, response characteristics, or operating specifications. All parts maintain identical functional parameters regardless of packaging configuration.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed carry ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements.
Q: Which substitute part offers the best supply chain security?
A: OPB960T51 provides the highest inventory availability at 20,199 pcs, followed by OPB960N51 at 8,810 pcs. These parts offer optimal supply continuity for production applications.
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