SD2440-001 Equivalent & Substitute Parts Reference

Part Overview

The SD2440-001 is a phototransistor optical sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for 880nm infrared detection applications. This component features a top view pill package configuration with through-hole PCB mounting. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and component procurement.

Substiute Parts

SD2440-001

Honeywell Sensing and Productivity SolutionsIn Stock: 790SD2440-001 Datasheet

Current PartRFQ

OP600A

TT Electronics/Optek TechnologyIn Stock: 787OP600A Datasheet

SimilarRFQ

OP600B

TT Electronics/Optek TechnologyIn Stock: 1034OP600B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SD2440-001 are identified based on the following critical parameters that define functional equivalence:

Primary Matching Criteria:

• Optical sensor category and phototransistor function
• Pill package configuration
• Top view orientation
• Infrared wavelength range (880nm-890nm)
• Dark current specification (100 nA maximum)
• Operating temperature overlap capability

Substitute Parts Identified:

• OP600A (TT Electronics/Optek Technology)
• OP600B (TT Electronics/Optek Technology)

Both substitute parts maintain the same package type (pill), orientation (top view), and dark current specification (100 nA max). The wavelength operates at 890nm, which is within the near-infrared spectrum adjacent to the original 880nm specification. Both substitutes are classified as active products with current manufacturing status, ensuring long-term component availability.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The SD2440-001 is classified as obsolete. Both OP600A and OP600B are active products with current manufacturing status, providing assured long-term component availability and supply chain continuity.

Compliance and Certifications: All three parts maintain RoHS compliance. The substitute parts (OP600A and OP600B) carry ROHS3 Compliant designation and REACH Unaffected status, meeting current regulatory requirements. Both substitutes are classified under the same ECCN (EAR99) and HTSUS (8541.49.7080) codes as the original part.

Electrical Parameter Alignment: The substitute parts operate within compatible electrical parameters. The maximum collector-emitter breakdown voltage of 25 V on the substitutes is lower than the original 30 V specification. The maximum power dissipation of 50 mW on substitutes is lower than the original 125 mW. These differences require circuit-level evaluation to confirm suitability for specific applications.

Wavelength and Optical Characteristics: The substitutes operate at 890nm compared to the original 880nm. This 10nm difference falls within the near-infrared spectrum and maintains functional compatibility for most infrared detection applications. The viewing angle specification is not provided for the substitute parts.

Mounting Configuration: The original part uses through-hole PCB mounting, while both substitutes use surface mount technology. This represents a significant mechanical difference requiring PCB redesign or adapter solutions for direct replacement in existing through-hole designs.

Frequently Asked Questions (FAQ)

Q: Can OP600A and OP600B be used as direct replacements for SD2440-001 in existing PCB designs?

A: Direct replacement is not possible without PCB modification. The SD2440-001 uses through-hole mounting, while OP600A and OP600B use surface mount technology. The package type (pill) is identical, but the mounting interface differs fundamentally. PCB redesign or mechanical adapter solutions are required.

Q: What is the significance of the 10nm wavelength difference between 880nm and 890nm?

A: Both wavelengths operate in the near-infrared spectrum. The 10nm difference represents a 1.1% shift in wavelength. Functional compatibility depends on the specific application's optical filter characteristics and detector sensitivity curve. Circuit-level evaluation is necessary to confirm performance in the target application.

Q: Are the electrical parameter differences between the original and substitute parts critical?

A: The substitute parts have lower maximum ratings: 25 V collector-emitter breakdown voltage (versus 30 V) and 50 mW maximum power (versus 125 mW). These differences require circuit analysis to confirm the substitutes operate within safe margins in the intended application. If the original design approaches these maximum ratings, the substitutes may not be suitable.

Q: What is the inventory status of these parts?

A: SD2440-001 has 682 pieces in stock (obsolete status). OP600A has 723 pieces available. OP600B has 948 pieces available. Both substitutes are active products with current manufacturing support.

Q: Do the substitute parts meet current regulatory requirements?

A: Yes. Both OP600A and OP600B carry ROHS3 Compliant designation and REACH Unaffected status. They share the same ECCN (EAR99) and HTSUS (8541.49.7080) classification as the original part, ensuring regulatory alignment for procurement and export purposes.

Q: What is the operating temperature range compatibility?

A: The original SD2440-001 operates from -55°C to 125°C. Both substitutes operate from -65°C to 125°C, providing extended low-temperature capability. The upper temperature limit is identical. The substitutes are compatible for all applications within the original temperature range and extend capability to lower temperatures.