SD2410-003 Equivalent & Substitute Parts

Part Overview

The SD2410-003 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 procurement continuity. Substitute parts must maintain compatibility across optical wavelength specifications, electrical performance parameters, and mechanical form factors.

Substiute Parts

SD2410-003

Honeywell Sensing and Productivity SolutionsIn Stock: 824SD2410-003 Datasheet

Current PartRFQ

OP643SL

TT Electronics/Optek TechnologyIn Stock: 3544OP643SL Datasheet

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OP644SL

TT Electronics / Optek TechnologyIn Stock: 1032OP644SL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SD2410-003 are identified based on the following critical parameters:

Optical Compatibility: Wavelength specification within the near-infrared spectrum (880nm primary, 890nm acceptable for broadband IR applications). Both substitute parts operate at 890nm, representing a 10nm offset within typical phototransistor spectral tolerance bands for this application category.

Electrical Performance: Voltage breakdown rating, dark current leakage, and power dissipation capacity. Substitute parts demonstrate enhanced electrical specifications (25V breakdown vs. 15V, 100nA dark current vs. 250nA, 50mW power vs. 125mW).

Mechanical Form Factor: Package type (pill configuration), orientation (top view), and mounting compatibility. Both substitutes maintain pill package geometry and top view orientation but transition from through-hole to surface mount assembly.

Regulatory Compliance: RoHS and REACH certification status. Substitute parts carry ROHS3 Compliant and REACH Unaffected designations, meeting current regulatory requirements.

Product Status: Active product status of substitutes ensures ongoing availability and manufacturing support, contrasting with the obsolete status of the SD2410-003.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Designs: OP643SL and OP644SL are functionally equivalent substitutes with active product status, ensuring long-term availability and manufacturing support. Both parts maintain pill package geometry and top view optical orientation required for SD2410-003 replacement.

Regulatory Compliance: Substitute parts carry ROHS3 Compliant and REACH Unaffected certifications, meeting current regulatory requirements for new product designs and procurement cycles.

Mounting Transition Consideration: Substitution requires transition from through-hole PCB mounting (SD2410-003) to surface mount assembly (OP643SL, OP644SL). This represents a mechanical assembly change requiring PCB layout modification.

Electrical Performance: Substitute parts provide enhanced voltage breakdown rating (25V vs. 15V) and reduced dark current leakage (100nA vs. 250nA), supporting improved circuit reliability and signal integrity in applications where these parameters are critical.

Wavelength Specification: The 10nm wavelength offset (890nm vs. 880nm) falls within acceptable tolerance for broadband infrared detection applications. Designs with narrow-band wavelength requirements must validate spectral response compatibility through detailed optical specifications.

Frequently Asked Questions (FAQ)

Q: Can OP643SL and OP644SL directly replace SD2410-003 in existing through-hole PCB designs?

A: Direct pin-for-pin replacement is not possible due to mounting type transition from through-hole to surface mount. PCB layout redesign is required to accommodate surface mount assembly. Optical and electrical functionality remains compatible.

Q: What is the significance of the 10nm wavelength difference between SD2410-003 (880nm) and substitute parts (890nm)?

A: The 10nm offset represents a minor spectral shift within typical phototransistor detection bands. Both wavelengths operate in the near-infrared spectrum suitable for standard IR detection applications. Applications requiring precise 880nm wavelength matching must evaluate spectral response curves against specific optical source characteristics.

Q: Are OP643SL and OP644SL electrically interchangeable with each other?

A: Yes. Both parts share identical electrical specifications (25V breakdown, 100nA dark current, 50mW power), wavelength (890nm), temperature range (-65°C ~ 125°C), and package configuration (pill, top view, surface mount). Selection between these parts depends on availability and procurement requirements.

Q: How does the reduced power rating (50mW vs. 125mW) of substitute parts affect circuit design?

A: The lower power dissipation rating of substitute parts requires verification that circuit operating conditions do not exceed 50mW continuous dissipation. Designs operating within this thermal envelope experience no functional impact. High-power applications may require circuit modification or alternative component selection.

Q: What compliance advantages do substitute parts provide over the obsolete SD2410-003?

A: Substitute parts carry ROHS3 Compliant and REACH Unaffected certifications, meeting current regulatory standards for new product designs and procurement. The obsolete SD2410-003, while RoHS Compliant, lacks current regulatory alignment and manufacturing support.

Q: Does the extended operating temperature range (-65°C vs. -55°C minimum) of substitute parts provide design advantages?

A: Yes. The expanded lower temperature limit (-65°C vs. -55°C) extends environmental operating capability for applications requiring enhanced cold-temperature performance. The upper temperature limit remains identical (125°C).