OP750D Equivalent & Substitute Parts

Part Overview

The OP750D is a phototransistor optical sensor manufactured by TT Electronics/Optek Technology, designed for 935nm infrared detection in side view radial configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The OP750D operates within a collector-emitter breakdown voltage of 30V maximum and supports collector current up to 30mA, with dark current specifications of 100nA maximum.

Substiute Parts

OP750D

TT Electronics/Optek TechnologyIn Stock: 1123OP750D Datasheet

Current PartRFQ

OP750B

TT Electronics/Optek TechnologyIn Stock: 1187OP750B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP750D is determined by strict equivalence across the following critical parameters:

• Wavelength: 935nm infrared detection capability
• Electrical Ratings: Collector-emitter breakdown voltage (30V), maximum collector current (30mA), and dark current specification (100nA)
• Power Dissipation: 200mW maximum rating
• Mechanical Configuration: Through-hole mounting, side view orientation, radial package
• Operating Temperature Range: -40°C to 100°C

The OP750B meets all specified electrical and mechanical parameters and maintains identical functional characteristics for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The OP750B is the direct equivalent substitute for the OP750D. Both components share identical electrical specifications, mechanical configuration, and environmental operating parameters. The OP750B maintains active product status with current manufacturing availability, whereas the OP750D is obsolete. Both components comply with ROHS3 and REACH regulatory requirements, ensuring equivalent compliance posture for applications requiring environmental and hazardous substance restrictions.

Selection of the OP750B over the OP750D is justified by product lifecycle status and supply chain continuity. The OP750B is manufactured to the same base product number (OP750) and provides equivalent performance for all 935nm infrared phototransistor applications requiring through-hole radial mounting with side view orientation.

Frequently Asked Questions (FAQ)

Q: Can the OP750B directly replace the OP750D in existing designs?

A: Yes. The OP750B is electrically and mechanically equivalent to the OP750D across all specified parameters, including wavelength (935nm), voltage ratings (30V breakdown), current ratings (30mA collector, 100nA dark), power dissipation (200mW), and package configuration (through-hole radial side view). Direct substitution is supported without circuit modification.

Q: What is the primary difference between OP750D and OP750B?

A: The OP750D is classified as obsolete, while the OP750B maintains active product status. Both components are manufactured by TT Electronics/Optek Technology and share identical functional specifications. The OP750B is the recommended selection for new designs and ongoing production due to supply availability.

Q: Are there packaging differences between these parts?

A: Both components use radial through-hole packages with side view orientation. The OP750D is specified without packaging detail, while the OP750B is supplied in bulk packaging. The mechanical footprint and pin configuration remain identical.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the OP750D and OP750B are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and hazardous substance requirements.

Q: What operating temperature range applies to both components?

A: Both the OP750D and OP750B operate across the identical temperature range of -40°C to 100°C, supporting equivalent thermal performance in industrial and commercial applications.