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OPB870P11 Equivalent & Substitute Parts
Part Overview
The OPB870P11 is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This pre-wired chassis mount sensor operates at a 0.125" (3.18mm) sensing distance and is classified as an unamplified optical sensor with phototransistor output configuration. The OPB870P11 is currently obsolete, necessitating identification of active equivalent and substitute parts that maintain identical electrical and mechanical specifications for direct replacement in existing applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | OPB870P11 |
| Manufacturer | TT Electronics/Optek Technology |
| Category | Optical Sensors |
| Sensing Distance | 0.125" (3.18mm) |
| Sensing Method | Through-Beam |
| Output Configuration | Phototransistor |
| Current - DC Forward (If) (Max) | 50 mA |
| Current - Collector (Ic) (Max) | 30 mA |
| Voltage - Collector Emitter Breakdown (Max) | 30 V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Chassis Mount |
| Package / Case | Module, Pre-Wired |
| Type | Unamplified |
| 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 OPB870P11 are identified based on strict parametric equivalence across the following critical specifications:
- Sensing Distance: 0.125" (3.18mm)
- Sensing Method: Through-Beam
- Output Configuration: Phototransistor
- Current - DC Forward (If) (Max): 50 mA
- Current - Collector (Ic) (Max): 30 mA
- Voltage - Collector Emitter Breakdown (Max): 30 V
- Operating Temperature: -40°C ~ 85°C
- Mounting Type: Chassis Mount
- Package / Case: Module, Pre-Wired
- Type: Unamplified
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
- REACH Status: REACH Unaffected
All identified substitute parts maintain identical electrical performance and mechanical compatibility with the OPB870P11. Substitutes are classified as either manufacturer-recommended (active product status) or parametric equivalents (active product status).
Parameter Comparison
| Part Number | Manufacturer | Product Status | Sensing Distance | Sensing Method | Output Configuration | If (Max) | Ic (Max) | VCE Breakdown (Max) | Operating Temperature | Mounting Type | Package / Case | Type | RoHS Status | MSL | REACH Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OPB870P11 | TT Electronics/Optek Technology | Obsolete | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB870N11 | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB360N51 | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB365N11 | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB365N51 | TT Electronics / Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB365P55 | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB370N51 | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB370N55 | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB375N51 | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB380N11Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
| OPB380P51Z | TT Electronics/Optek Technology | Active | 0.125" (3.18mm) | Through-Beam | Phototransistor | 50 mA | 30 mA | 30 V | -40°C ~ 85°C | Chassis Mount | Module, Pre-Wired | Unamplified | ROHS3 Compliant | 1 (Unlimited) | REACH Unaffected |
Engineering Selection Recommendations
The OPB870P11 is classified as obsolete and no longer in active production. All identified substitute parts are active products from TT Electronics/Optek Technology and maintain full parametric equivalence with the original part.
OPB870N11 is the manufacturer-recommended direct replacement, offering identical specifications with active product status and bulk packaging availability.
All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original OPB870P11. Selection among the parametric equivalents should be based on packaging requirements and inventory availability, as all parts deliver identical electrical performance and mechanical compatibility.
Frequently Asked Questions (FAQ)
Q: Can OPB870N11 be used as a direct replacement for OPB870P11?
A: Yes. OPB870N11 is the manufacturer-recommended substitute with identical electrical specifications, sensing distance, output configuration, and operating temperature range. The primary difference is product status (active versus obsolete) and packaging designation.
Q: What is the difference between the substitute parts listed?
A: All substitute parts maintain identical electrical and mechanical parameters. Differences exist only in base product series designation (OPB360, OPB365, OPB370, OPB375, OPB380) and packaging suffix codes. These variations do not affect functional compatibility or performance characteristics.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the OPB870P11.
Q: What is the sensing distance specification for these optical sensors?
A: All parts operate at a 0.125" (3.18mm) through-beam sensing distance. This specification is consistent across the OPB870P11 and all identified substitutes.
Q: Can these sensors be used in applications requiring -40°C to 85°C operation?
A: Yes. All parts, including the OPB870P11 and all substitutes, are rated for -40°C to 85°C operating temperature range.
Q: What is the maximum collector current for these phototransistor modules?
A: The maximum collector current (Ic) is 30 mA for the OPB870P11 and all identified substitute parts.
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