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OPB990N55Z Equivalent & Substitute Parts
Part Overview
The OPB990N55Z is a through-beam optical sensor module manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This component is classified as an optical sensor with a 0.125" (3.18mm) sensing distance, designed for chassis mount applications with wire leads. The OPB990N55Z is currently listed as obsolete, making identification of functionally equivalent active alternatives necessary for ongoing system support and new designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | OPB990N55Z |
| 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 | 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 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the OPB990N55Z is determined by strict equivalence across the following critical parameters:
- 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
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
- REACH Status: REACH Unaffected
All substitute parts listed below maintain identical electrical and mechanical specifications across these parameters. Substitutes are available from the same manufacturer (TT Electronics/Optek Technology) within the Photologic® series and carry active product status, ensuring continued availability and support.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Sensing Distance | Sensing Method | Output Configuration | Current - Supply | Voltage - Supply | Response Time | Operating Temperature | Package / Case | RoHS Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OPB990N55Z | TT Electronics/Optek Technology | Obsolete | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 683 |
| OPB930W51Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 2332 |
| OPB940W51Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 2247 |
| OPB940W55Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 1300 |
| OPB980L11Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 1101 |
| OPB980L51Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 1063 |
| OPB980L55Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 20399 |
| OPB980P11Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 1055 |
| OPB980P51Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 2412 |
| OPB980P55Z | TT Electronics / Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 995 |
| OPB980T11Z | TT Electronics / Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Module, Wire Leads | ROHS3 Compliant | 1067 |
Engineering Selection Recommendations
All listed substitute parts are functionally equivalent to the OPB990N55Z across all specified electrical and mechanical parameters. Selection among active alternatives should be based on:
Product Status: All substitute parts carry active product status, ensuring manufacturer support, continued availability, and compliance with current regulatory requirements. The OPB990N55Z is obsolete and should be replaced in new designs.
Regulatory Compliance: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the compliance profile of the original part.
Inventory Availability: OPB980L55Z offers the highest inventory level (20,399 pcs), providing supply chain stability. OPB980P51Z (2,412 pcs) and OPB930W51Z (2,332 pcs) also maintain substantial stock levels.
Base Product Series: Substitute parts are organized within OPB930, OPB940, and OPB980 base product families, all within the Photologic® series from TT Electronics/Optek Technology.
Frequently Asked Questions (FAQ)
Q: Can OPB980L55Z directly replace OPB990N55Z in existing designs?
A: Yes. The OPB980L55Z maintains identical electrical specifications (15 mA supply current, 4.75V ~ 5.25V supply voltage, 70ns response time), mechanical configuration (chassis mount, module with wire leads), sensing characteristics (0.125" through-beam), and output configuration (totem pole, buffer). No circuit modifications are required.
Q: What is the difference between OPB980L55Z, OPB980P55Z, and OPB980T11Z?
A: These parts differ only in internal configuration codes (L, P, T designations) and packaging variants (55Z, 11Z suffixes). All three maintain identical electrical and mechanical parameters specified for substitution. Selection depends on packaging requirements and internal circuit configuration needs specific to your application.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the OPB990N55Z.
Q: Why is OPB990N55Z listed as obsolete?
A: The OPB990N55Z has been discontinued by the manufacturer. Active alternatives within the same Photologic® series provide equivalent functionality with ongoing manufacturer support and supply availability.
Q: Can I use OPB930W51Z or OPB940W51Z as alternatives?
A: Yes. Both OPB930W51Z and OPB940W51Z are functionally equivalent substitutes with identical electrical and mechanical specifications. Selection should be based on packaging preference (bulk packaging available for all) and inventory availability for your supply chain requirements.
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