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OPB990P55 Equivalent & Substitute Parts
Part Overview
The OPB990P55 is an optical sensor from TT Electronics/Optek Technology's Photologic® series, designed as a through-beam optical sensor with 0.125" (3.18mm) sensing distance and wire lead module packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The OPB990P55 operates with totem pole buffer output configuration, 15 mA supply current, and 4.75V to 5.25V supply voltage range, suitable for applications requiring precise through-beam optical detection.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | OPB990P55 |
| 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 |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the OPB990P55 are selected 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: 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
- Category: Optical Sensors
- Series: Photologic®
Substitute parts differ in packaging format (bulk vs. other configurations) and product status (active vs. obsolete). All substitute parts listed are manufactured by TT Electronics/Optek Technology and are RoHS3 compliant, representing current production alternatives to the obsolete OPB990P55.
Parameter Comparison
| Part Number | Sensing Distance | Sensing Method | Output Configuration | Current - Supply | Voltage - Supply | Response Time | Operating Temperature | Product Status | RoHS Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|
| OPB990P55 | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Obsolete | RoHS non-compliant | 728 |
| OPB990P55Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 740 |
| OPB930W51Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 2332 |
| OPB940W51Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 2247 |
| OPB940W55Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 1300 |
| OPB980L11Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 1101 |
| OPB980L51Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 1063 |
| OPB980L55Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 20399 |
| OPB980P11Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 1055 |
| OPB980P51Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 2412 |
| OPB980P55Z | 0.125" (3.18mm) | Through-Beam | Totem Pole, Buffer | 15 mA | 4.75V ~ 5.25V | 70ns | -40°C ~ 70°C | Active | ROHS3 Compliant | 995 |
Engineering Selection Recommendations
The OPB990P55 is obsolete and no longer in active production. Direct replacement with OPB990P55Z is the primary equivalent, maintaining identical electrical and mechanical specifications while offering active product status and ROHS3 compliance.
For applications requiring active production parts with full regulatory compliance, the OPB980 series (OPB980L11Z, OPB980L51Z, OPB980L55Z, OPB980P11Z, OPB980P51Z, OPB980P55Z) and OPB940 series (OPB940W51Z, OPB940W55Z) provide functionally equivalent alternatives. The OPB930W51Z also qualifies as a direct substitute.
All substitute parts maintain identical electrical performance characteristics: 15 mA supply current, 4.75V to 5.25V supply voltage, 70ns response time, and -40°C to 70°C operating temperature range. All substitute parts are ROHS3 compliant, addressing regulatory requirements that the original OPB990P55 does not meet.
Frequently Asked Questions (FAQ)
Q: Can OPB990P55Z be used as a direct replacement for OPB990P55?
A: Yes. OPB990P55Z is the direct equivalent with identical electrical and mechanical specifications. The primary differences are active product status and ROHS3 compliance. Packaging format is bulk.
Q: What is the difference between OPB980 and OPB940 series substitutes?
A: Both series maintain identical electrical specifications and sensing characteristics as the OPB990P55. Differences exist only in base product number designation within the Photologic® family. All listed variants are functionally equivalent for through-beam optical sensing applications.
Q: Are all substitute parts RoHS compliant?
A: All substitute parts listed are ROHS3 compliant. The original OPB990P55 is RoHS non-compliant. If RoHS compliance is required for your application, any of the listed substitute parts satisfy this requirement.
Q: Does packaging format affect electrical performance?
A: No. All parts maintain identical electrical specifications regardless of packaging format (bulk vs. other configurations). Packaging affects only procurement and handling, not functional performance.
Q: What inventory levels are available for substitute parts?
A: OPB980L55Z has the highest inventory at 20,399 pieces. OPB930W51Z and OPB940W51Z each have over 2,000 pieces available. All substitute parts are in active stock.
Q: Can I use OPB930W51Z or OPB940W55Z interchangeably with OPB990P55?
A: Yes. All listed substitute parts are electrically and mechanically equivalent. They share identical sensing distance, output configuration, supply requirements, response time, and operating temperature range.
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