OP506C Equivalent & Substitute Parts

Part Overview

The OP506C is a phototransistor optical sensor manufactured by TT Electronics/Optek Technology, designed for 935nm infrared detection in a T-1 through-hole package with top-view orientation. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The OP506C operates across a wide temperature range of -40°C to 100°C with a maximum collector-emitter breakdown voltage of 30V and collector current rating of 3mA.

Substiute Parts

OP506C

TT Electronics/Optek TechnologyIn Stock: 1188OP506C Datasheet

Current PartRFQ

LTR-4206E

Lite-On Inc.In Stock: 75019LTR-4206E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP506C is determined by the following critical parameters:

• Package Type: T-1 through-hole package with top-view orientation
• Wavelength Compatibility: 935nm infrared detection capability
• Electrical Ratings: Collector-emitter breakdown voltage of 30V minimum, collector current capability of 3mA or greater
• Dark Current: Maximum 100nA specification
• Power Dissipation: 100mW maximum rating
• Compliance: ROHS3 compliance and REACH unaffected status
• Mounting Configuration: Through-hole technology with identical package footprint

The LTR-4206E from Lite-On Inc. meets these substitution criteria as an active product with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The LTR-4206E is the manufacturer-recommended substitute for the obsolete OP506C phototransistor. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production transitions.

The LTR-4206E provides equivalent electrical performance with the following considerations:

• Collector-emitter breakdown voltage and dark current specifications are identical
• Collector current rating of 4.8mA exceeds the OP506C requirement of 3mA, providing design margin
• Wavelength shift from 935nm to 940nm represents a 5nm variance within the infrared detection spectrum
• Operating temperature range of -40°C to 85°C is reduced compared to the OP506C upper limit of 100°C; applications requiring operation above 85°C require alternative evaluation
• Active product status ensures long-term availability and supply chain continuity

Frequently Asked Questions (FAQ)

Q: Can the LTR-4206E directly replace the OP506C in existing designs?

A: The LTR-4206E is mechanically and electrically compatible with the OP506C for most applications. Both components use identical T-1 through-hole packages with top-view orientation and share equivalent electrical ratings for collector-emitter breakdown voltage, dark current, and power dissipation. The 5nm wavelength difference (935nm to 940nm) falls within the infrared detection spectrum. Applications operating above 85°C ambient temperature require thermal analysis, as the LTR-4206E maximum operating temperature is 85°C compared to the OP506C specification of 100°C.

Q: What is the wavelength difference between 935nm and 940nm?

A: The wavelength variance of 5nm represents a minor shift within the infrared spectrum. Both wavelengths are suitable for standard infrared detection applications. System-level performance validation is required for wavelength-critical applications.

Q: Are both components RoHS compliant?

A: Both the OP506C and LTR-4206E are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the viewing angle specification for the LTR-4206E?

A: The LTR-4206E has a specified viewing angle of 20°. The OP506C viewing angle specification is not provided in the available technical data.

Q: Why is the LTR-4206E recommended as a substitute?

A: The OP506C is classified as obsolete, making the active LTR-4206E necessary for new production and design continuity. The LTR-4206E meets all critical substitution parameters including package type, electrical ratings, compliance certifications, and mounting configuration.