OPB847TX Equivalent & Substitute Parts

Part Overview

The OPB847TX is an optical sensor manufactured by TT Electronics/Optek Technology, designed for through-beam slot detection applications. This phototransistor-based sensor operates at a 0.100" (2.54mm) sensing distance and is configured for PCB mount installation. The component is currently in active production status with 857 units available in inventory. Equivalent and substitute parts are identified when applications require alternative sourcing, inventory replenishment, or design flexibility while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

OPB847TX

TT Electronics/Optek TechnologyIn Stock: 935OPB847TX Datasheet

Current PartRFQ

OPB847

TT Electronics/Optek TechnologyIn Stock: 2013OPB847 Datasheet

Parametric EquivalentRFQ

OPB848

TT Electronics / Optek TechnologyIn Stock: 1351OPB848 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OPB847TX are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Sensing Distance: 0.100" (2.54mm)
• Sensing Method: Through-Beam
• Output Configuration: Phototransistor
• Current - DC Forward (If) (Max): 50 mA
• Voltage - Collector Emitter Breakdown (Max): 30 V
• Response Time: 12µs
• Operating Temperature Range: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: PCB Mount
• Type: Unamplified

The OPB847 and OPB848 meet all these criteria and are classified as parametric equivalents. Both parts share identical electrical performance, thermal operating range, and physical mounting characteristics with the OPB847TX.

Parameter Comparison

Engineering Selection Recommendations

All three parts—OPB847TX, OPB847, and OPB848—are active production components with identical electrical specifications and environmental compliance certifications. Selection between these parts is based on availability and supply chain requirements rather than technical performance differences.

OPB847 and OPB848 are direct parametric equivalents suitable for applications currently specified for OPB847TX. All parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across industrial and commercial applications. The through-hole PCB mount configuration and unamplified phototransistor output remain consistent across all three variants.

Frequently Asked Questions (FAQ)

Q: Can OPB847 or OPB848 be used as direct replacements for OPB847TX?

A: Yes. OPB847 and OPB848 are parametric equivalents with identical electrical performance, sensing distance, response time, and operating temperature range. All three parts share the same through-hole PCB mount configuration and phototransistor output characteristics.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by matching sensing distance (0.100"), sensing method (through-beam), output configuration (phototransistor), maximum forward current (50 mA), collector-emitter breakdown voltage (30 V), response time (12µs), operating temperature range (-40°C to 85°C), and mounting type (through hole PCB mount).

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts maintain identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity level (MSL 1 - Unlimited). Regulatory and environmental certifications are consistent across OPB847TX, OPB847, and OPB848.

Q: What inventory levels are available for each part?

A: OPB847TX has 857 units in stock, OPB847 has 1984 units, and OPB848 has 1280 units available as new original inventory.

Q: Are these parts suitable for high-temperature applications?

A: All three parts operate within the -40°C to 85°C temperature range. Applications requiring operation outside this range require alternative component selection.