SDP8406-004 Equivalent & Substitute Parts Reference

Part Overview

The SDP8406-004 is a 935nm side view radial phototransistor manufactured by Honeywell Sensing and Productivity Solutions. This optical sensor component is classified as obsolete, with 1171 pieces currently available in stock. The part operates within a collector-emitter breakdown voltage of 30V maximum and maintains a dark current specification of 100nA maximum. Due to its obsolete product status, equivalent and substitute parts from active manufacturers are necessary for ongoing design requirements and production continuity.

Substiute Parts

SDP8406-004

Honeywell Sensing and Productivity SolutionsIn Stock: 1196SDP8406-004 Datasheet

Current PartRFQ

OPS698

TT Electronics/Optek TechnologyIn Stock: 1185OPS698 Datasheet

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OP550A

TT Electronics/Optek TechnologyIn Stock: 2027OP550A Datasheet

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OP550B

TT Electronics / Optek TechnologyIn Stock: 1221OP550B Datasheet

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PT928-6C-F

Everlight Electronics Co LtdIn Stock: 3295PT928-6C-F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SDP8406-004 is determined by the following critical parameters: wavelength specification (935nm), orientation (side view), mounting configuration (through hole radial), voltage rating (30V collector-emitter breakdown maximum), and dark current specification (100nA maximum). All substitute parts must maintain compatibility across these core electrical and mechanical parameters to ensure functional equivalence in circuit applications.

The substitute parts are grouped into two categories:

Direct Equivalents (Similar): OP550A and OP550B from TT Electronics/Optek Technology match the wavelength (935nm), orientation (side view), mounting type (through hole), package configuration (radial), voltage rating (30V), and dark current specification (100nA). Both parts are active products with extended operating temperature ranges (-40°C ~ 100°C) and ROHS3 compliance.

Functional Equivalent (Upgrade): OPS698 from TT Electronics/Optek Technology operates at the same voltage rating (30V) and dark current specification (100nA) with radial through-hole mounting. This part functions as a through-beam optical sensor with phototransistor output, representing an alternative sensing method while maintaining core electrical parameters.

Near-Equivalent (Wavelength Variant): PT928-6C-F from Everlight Electronics operates at 940nm wavelength (5nm variance from 935nm specification) with matching voltage rating (30V), dark current specification (100nA), side view orientation, through-hole right-angle mounting, and radial package configuration. Operating temperature range is -25°C ~ 85°C.

Parameter Comparison

Engineering Selection Recommendations

OP550A and OP550B Selection: These parts represent the closest functional equivalents to the SDP8406-004. Both maintain identical wavelength (935nm), orientation (side view), voltage rating (30V), dark current specification (100nA), and power rating (100mW). Both are active products with ROHS3 compliance and extended operating temperature ranges to 100°C. OP550A maintains 1990 pieces in stock inventory, while OP550B maintains 1137 pieces. Selection between these two variants depends on specific application requirements not detailed in the provided parameters.

OPS698 Selection: This part is suitable for applications where through-beam sensing methodology is acceptable. It maintains the critical voltage (30V) and dark current (100nA) specifications with active product status and ROHS3 compliance. Operating temperature range extends to 100°C. This part is available with 1139 pieces in stock inventory.

PT928-6C-F Selection: This part operates at 940nm wavelength, representing a 5nm variance from the 935nm specification. It maintains identical voltage rating (30V), dark current specification (100nA), side view orientation, and through-hole right-angle mounting. ROHS3 compliance and MSL 1 rating are confirmed. Operating temperature range is -25°C ~ 85°C, matching the original part's upper limit. This part is available with 3200 pieces in stock inventory. Selection of this variant requires confirmation that the 940nm wavelength variance is acceptable for the application.

All substitute parts maintain RoHS and MSL compliance consistent with the original SDP8406-004 specification.

Frequently Asked Questions (FAQ)

Q: Can OP550A or OP550B be used as direct replacements for SDP8406-004?

A: OP550A and OP550B are functionally equivalent to SDP8406-004 across all critical parameters: wavelength (935nm), orientation (side view), mounting type (through hole), package configuration (radial), voltage rating (30V), and dark current specification (100nA). Both are active products with ROHS3 compliance and extended operating temperature ranges. These parts are suitable for direct substitution in circuit designs.

Q: What is the difference between OP550A and OP550B?

A: Both OP550A and OP550B share identical electrical specifications and package configurations. The provided parameters do not specify functional differences between these variants. Selection should be based on application-specific requirements and availability.

Q: Is OPS698 compatible with SDP8406-004 applications?

A: OPS698 maintains the same voltage rating (30V) and dark current specification (100nA) as SDP8406-004. However, OPS698 functions as a through-beam optical sensor, whereas SDP8406-004 is a side view phototransistor. Compatibility depends on whether the application requires side view sensing geometry or can accommodate through-beam sensing methodology.

Q: Can PT928-6C-F be used instead of SDP8406-004?

A: PT928-6C-F operates at 940nm wavelength compared to SDP8406-004's 935nm specification, representing a 5nm variance. All other critical parameters match: voltage rating (30V), dark current specification (100nA), side view orientation, through-hole right-angle mounting, and radial package configuration. Substitution is permissible only if the 940nm wavelength variance is acceptable for the application's optical filtering and detection requirements.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: wavelength specification, orientation (side view), mounting type (through hole), package configuration (radial), voltage rating (collector-emitter breakdown maximum), and dark current specification (maximum). All substitute parts must maintain these core electrical and mechanical parameters to ensure functional equivalence.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed (OP550A, OP550B, OPS698, and PT928-6C-F) maintain ROHS3 compliance status. The original SDP8406-004 is RoHS Compliant. All parts maintain Moisture Sensitivity Level 1 (Unlimited) rating.

Q: What is the inventory status of substitute parts?

A: OP550A is available with 1990 pieces in stock. OP550B is available with 1137 pieces in stock. OPS698 is available with 1139 pieces in stock. PT928-6C-F is available with 3200 pieces in stock. All parts are listed as new original stock.