OP603TXV Equivalent & Substitute Parts

Part Overview

The OP603TXV is a phototransistor optical sensor in a top view pill package, manufactured by TT Electronics/Optek Technology. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement. The OP603TXV operates as a surface-mount photodetector with a 36° viewing angle and is suitable for applications requiring light detection in the -55°C to 125°C temperature range.

Substiute Parts

OP603TXV

TT Electronics/Optek TechnologyIn Stock: 819OP603TXV Datasheet

Current PartRFQ

OP604TXV

TT Electronics/Optek TechnologyIn Stock: 852OP604TXV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP603TXV is determined by strict equivalence across the following critical parameters:

• Optical sensor category and phototransistor function
• Surface mount packaging with top view pill orientation
• Collector-emitter breakdown voltage: 50 V maximum
• Dark current specification: 25 nA maximum
• Viewing angle: 36°
• Power dissipation: 50 mW maximum
• Operating temperature range: -55°C to 125°C
• Moisture sensitivity level: 1 (Unlimited)

The OP604TXV meets all these criteria and is classified as an active product, making it a direct functional equivalent for the obsolete OP603TXV.

Parameter Comparison

Engineering Selection Recommendations

The OP604TXV is the direct substitute for the obsolete OP603TXV. Both components share identical electrical and mechanical specifications across all critical parameters. The OP604TXV offers the following advantages:

• Active product status ensures ongoing availability and manufacturer support
• ROHS3 compliance meets current environmental and regulatory requirements, whereas the OP603TXV is RoHS non-compliant
• Maximum collector current of 8 mA exceeds the OP603TXV specification of 5 mA, providing additional design margin
• Identical package, orientation, and thermal operating range enable direct substitution in existing designs

Selection of the OP604TXV eliminates obsolescence risk and aligns with current compliance standards.

Frequently Asked Questions (FAQ)

Q: Can the OP604TXV be used as a direct replacement for the OP603TXV in existing designs?

A: Yes. The OP604TXV is electrically and mechanically equivalent to the OP603TXV across all specified parameters, including voltage rating, dark current, viewing angle, power dissipation, operating temperature range, and package configuration. No circuit modifications are required.

Q: What is the difference in collector current between these parts?

A: The OP603TXV has a maximum collector current of 5 mA, while the OP604TXV has a maximum of 8 mA. The OP604TXV specification exceeds the original part, providing additional current capacity without affecting compatibility.

Q: Does the OP604TXV meet RoHS compliance requirements?

A: Yes. The OP604TXV is ROHS3 compliant, whereas the OP603TXV is RoHS non-compliant. This makes the OP604TXV suitable for applications requiring environmental compliance certification.

Q: Are the packaging and mounting specifications identical?

A: Yes. Both parts use surface mount technology with a top view pill package orientation, identical moisture sensitivity level, and the same mechanical footprint.

Q: Why is the OP603TXV classified as obsolete?

A: The OP603TXV has been discontinued by the manufacturer. The OP604TXV is the active equivalent product and is recommended for all new designs and procurement.