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OPB993P51Z Equivalent & Substitute Parts
Part Overview
The OPB993P51Z is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This through-beam optical sensor operates at 0.125" (3.18mm) sensing distance with NPN open collector inverted output configuration. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, design flexibility, or application-specific lead configuration needs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Sensing Distance | 0.125" (3.18mm) |
| Sensing Method | Through-Beam |
| Output Configuration | NPN - Open Collector, Inverted |
| Voltage Supply | 4.75V ~ 5.25V |
| Current Supply | 15 mA |
| Response Time | 70ns |
| Operating Temperature | -40°C ~ 70°C |
| Mounting Type | Chassis Mount |
| Package / Case | Module, Wire Leads |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the OPB993P51Z are qualified based on identical electrical and mechanical parameters across all critical specifications. All substitute parts maintain the same sensing distance (0.125" / 3.18mm), through-beam sensing method, NPN open collector inverted output, supply voltage range (4.75V ~ 5.25V), supply current (15 mA), response time (70ns), operating temperature range (-40°C ~ 70°C), chassis mount configuration, and wire lead packaging. Substitution is determined by part number variations within the OPB series (OPB933, OPB943, OPB983, OPB993) and lead configuration designations (W, P, L, T suffixes), all of which deliver identical functional performance within the specified parameter set.
Parameter Comparison
| Part Number | Manufacturer | Series | Sensing Distance | Sensing Method | Output Configuration | Voltage Supply | Current Supply | Response Time | Operating Temperature | Mounting Type | Package / Case | RoHS Status | Product Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OPB993P51Z | TT Electronics/Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 777 |
| OPB933W51Z | TT Electronics/Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 3489 |
| OPB933W55Z | TT Electronics/Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 1243 |
| OPB943W51Z | TT Electronics/Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 1180 |
| OPB983L51Z | TT Electronics / Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 1900 |
| OPB983P51Z | TT Electronics / Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 2108 |
| OPB983T51Z | TT Electronics/Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 20199 |
| OPB993L11Z | TT Electronics/Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 1716 |
| OPB993T51Z | TT Electronics / Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 1436 |
| OPB983T55Z | TT Electronics/Optek Technology | Photologic® | 0.125" (3.18mm) | Through-Beam | NPN - Open Collector, Inverted | 4.75V ~ 5.25V | 15 mA | 70ns | -40°C ~ 70°C | Chassis Mount | Module, Wire Leads | ROHS3 Compliant | Active | 1009 |
Engineering Selection Recommendations
All listed substitute parts maintain Active product status and ROHS3 compliance, qualifying them for direct substitution in applications requiring through-beam optical sensing at 0.125" (3.18mm) distance with NPN open collector inverted output. Selection among equivalent parts is determined by lead configuration requirements and inventory availability. OPB983T51Z offers the highest inventory level (20,199 units), while OPB983T55Z and OPB943W51Z present lower inventory positions. All parts are manufactured by TT Electronics/Optek Technology within the Photologic® series and deliver identical electrical performance across the specified parameter range.
Frequently Asked Questions (FAQ)
Q: What determines if a part can substitute for the OPB993P51Z? A: Substitute parts must maintain identical sensing distance (0.125" / 3.18mm), through-beam sensing method, NPN open collector inverted output configuration, supply voltage range (4.75V ~ 5.25V), supply current (15 mA), response time (70ns), operating temperature range (-40°C ~ 70°C), chassis mount configuration, and wire lead packaging. All listed parts meet these criteria.
Q: Are there differences between OPB933, OPB943, OPB983, and OPB993 series parts? A: Within the parameter set provided, all series variants deliver identical electrical and mechanical performance. Differences are reflected in part number designations and lead configuration suffixes (W, P, L, T), which do not affect functional equivalence for the specified application.
Q: What do the suffix letters (W, P, L, T) represent? A: Suffix designations indicate lead configuration variants. All variants listed maintain the same electrical specifications and wire lead packaging format required for chassis mount through-beam optical sensing applications.
Q: Can I use any substitute part interchangeably with the OPB993P51Z? A: Yes. All substitute parts listed maintain identical electrical parameters, output configuration, supply requirements, response time, operating temperature range, and packaging. Selection is based on lead configuration preference and inventory availability.
Q: Are all substitute parts ROHS3 compliant? A: Yes. All parts listed, including the OPB993P51Z and all substitutes, carry ROHS3 compliance certification.
Q: What is the moisture sensitivity level for these parts? A: All parts carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.
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