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OPB983L55Z Equivalent & Substitute Parts
Part Overview
The OPB983L55Z 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 classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. Active alternatives within the same electrical and mechanical specifications are available to ensure design continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | OPB983L55Z |
| Manufacturer | TT Electronics/Optek Technology |
| Category | Optical Sensors |
| Series | Photologic® |
| Sensing Distance | 0.125" (3.18mm) |
| Sensing Method | Through-Beam |
| Output Configuration | NPN - Open Collector, Inverted |
| Mounting Type | Chassis Mount |
| Voltage - Supply | 4.75V ~ 5.25V |
| Current - Supply | 15 mA |
| Response Time | 70ns |
| Operating Temperature | -40°C ~ 70°C |
| Package / Case | Module, Wire Leads |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the OPB983L55Z is determined by strict equivalence across the following critical parameters:
- Sensing Distance: 0.125" (3.18mm)
- Sensing Method: Through-Beam
- Output Configuration: NPN - Open Collector, Inverted
- Voltage Supply Range: 4.75V ~ 5.25V
- Current Supply: 15 mA
- Response Time: 70ns
- Operating Temperature Range: -40°C ~ 70°C
- Package Type: Module, Wire Leads
- Mounting Type: Chassis Mount
All substitute parts listed maintain identical electrical performance characteristics and mechanical compatibility. The primary distinction among substitutes is product status (active vs. obsolete) and packaging format (bulk vs. other configurations). Parts are grouped by base product number (OPB933, OPB943, OPB983, OPB993) with variant suffixes indicating packaging and lead configuration differences.
Parameter Comparison
| Part Number | Manufacturer | Series | Sensing Distance | Sensing Method | Output Configuration | Voltage Supply | Current Supply | Response Time | Operating Temperature | Package / Case | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OPB983L55Z | 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 | Module, Wire Leads | Obsolete | ROHS3 Compliant |
| 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| OPB983L11Z | 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| OPB983P11Z | 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| 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 | Module, Wire Leads | Active | ROHS3 Compliant |
| OPB993L55Z | 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 | Module, Wire Leads | Active | ROHS3 Compliant |
Engineering Selection Recommendations
All listed substitute parts maintain full electrical and mechanical compatibility with the OPB983L55Z. The primary selection criterion is product status: all substitute parts are classified as active, ensuring ongoing manufacturer support and availability. All parts comply with ROHS3 and maintain identical supply voltage, current draw, response time, and operating temperature specifications.
For applications requiring direct replacement of the obsolete OPB983L55Z, any substitute part from this list provides equivalent performance. Selection among substitutes should be based on inventory availability and packaging requirements specific to procurement channels.
Frequently Asked Questions (FAQ)
Q: Can OPB983L55Z substitutes be used interchangeably in existing designs?
A: Yes. All substitute parts maintain identical electrical specifications (4.75V ~ 5.25V supply, 15 mA current, 70ns response time), output configuration (NPN open collector inverted), sensing distance (0.125"), and package type (module with wire leads). Direct substitution is electrically and mechanically compatible.
Q: What is the difference between OPB983L55Z and OPB983L51Z?
A: Both parts share the same base product number (OPB983) and maintain identical electrical and mechanical specifications. The suffix variation (55Z vs. 51Z) indicates packaging or lead configuration differences, but electrical performance and sensing characteristics remain equivalent.
Q: Why are there multiple base product numbers (OPB933, OPB943, OPB983, OPB993) in the substitute list?
A: All listed base product numbers represent different product lines within the Photologic® series. Despite different base designations, each part listed maintains the identical electrical specifications, sensing distance, output configuration, and package type required for substitution.
Q: Is the OPB983L55Z still available for purchase?
A: The OPB983L55Z is classified as obsolete. Active substitute parts are available from the list provided, all of which are currently in stock and manufactured by TT Electronics/Optek Technology.
Q: Do all substitute parts comply with RoHS requirements?
A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the original OPB983L55Z.
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