OP803TX Equivalent & Substitute Parts

Part Overview

The OP803TX is a phototransistor optical sensor manufactured by TT Electronics/Optek Technology, designed for 890nm wavelength detection in a TO-206AA (TO-18-3 Metal Can) through-hole package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The OP803TX delivers 50mA maximum collector current with 100nA maximum dark current, operating across the -65°C to 125°C temperature range.

Substiute Parts

OP803TX

TT Electronics/Optek TechnologyIn Stock: 918OP803TX Datasheet

Current PartRFQ

OP805SL

TT Electronics/Optek TechnologyIn Stock: 1618OP805SL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP803TX is determined by strict equivalence across the following critical parameters:

• Wavelength: 890nm detection capability
• Voltage rating: 30V Collector-Emitter breakdown minimum
• Current capacity: 50mA maximum collector current
• Dark current: 100nA maximum specification
• Power dissipation: 250mW maximum rating
• Package type: TO-206AA (TO-18-3 Metal Can) through-hole configuration
• Orientation: Top View mounting

The OP805SL meets all specified electrical and mechanical parameters, providing direct functional equivalence to the obsolete OP803TX.

Parameter Comparison

Engineering Selection Recommendations

The OP805SL is the direct substitute for the obsolete OP803TX. Both components share identical electrical specifications and mechanical packaging. The OP805SL carries Active product status with ROHS3 compliance, providing regulatory advantage over the non-compliant OP803TX. Inventory availability of 1590 units for the OP805SL supports production requirements. Selection of the OP805SL eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing OP803TX circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the OP805SL directly replace the OP803TX in existing designs?

A: Yes. The OP805SL provides identical electrical performance across all specified parameters: 890nm wavelength, 30V breakdown voltage, 50mA maximum collector current, 100nA dark current, and 250mW power rating. Both components use the TO-206AA through-hole package with top-view orientation, requiring no circuit modifications.

Q: What is the primary difference between these parts?

A: The OP803TX is obsolete, while the OP805SL maintains Active product status. The OP805SL also carries ROHS3 compliance, whereas the OP803TX is non-compliant. Electrical and mechanical specifications remain equivalent.

Q: Are there viewing angle differences between these parts?

A: The OP803TX specifies a 24° viewing angle. The OP805SL viewing angle is not specified in available data. Verify viewing angle requirements against application specifications before final selection.

Q: What packaging options are available for the OP805SL?

A: The OP805SL is supplied in Bulk packaging. The OP803TX packaging type is not specified in available data.

Q: Is the OP805SL suitable for high-temperature applications?

A: Both components operate across the -65°C to 125°C temperature range, supporting extended temperature applications within this specification.