WP7104SYCK Equivalent & Substitute Parts

Part Overview

The WP7104SYCK is a yellow 590nm LED indicator manufactured by Kingbright, designed for through-hole mounting applications requiring discrete 2V radial configuration. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The part delivers 1300mcd luminous intensity with a 34° viewing angle in a standard 3mm T-1 lens package.

Substiute Parts

WP7104SYCK

KingbrightIn Stock: 1040WP7104SYCK Datasheet

Current PartRFQ

WP710A10SYCK

KingbrightIn Stock: 4452WP710A10SYCK Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WP7104SYCK is determined by strict equivalence across the following critical parameters:

Optical Characteristics: Wavelength-dominant and wavelength-peak must both be 590nm to maintain yellow color specification and optical performance consistency.

Electrical Characteristics: Forward voltage (Vf) of 2V and test current of 20mA must be maintained to ensure circuit compatibility without redesign of current-limiting resistor networks.

Luminous Intensity: Millicandela rating of 1300mcd must be preserved to maintain indicator visibility and brightness specifications in the application.

Mechanical Compatibility: Lens size (3mm T-1), lens style (round with domed top), lens transparency (clear), and package configuration (radial through-hole) must remain identical to ensure PCB footprint and mechanical fit.

Viewing Angle: 34° viewing angle specification must be maintained for consistent light distribution characteristics.

Regulatory Compliance: RoHS3 compliance, REACH unaffected status, and MSL rating of 1 must be preserved.

The substitute part WP710A10SYCK meets all these criteria while offering the advantage of active product status and improved inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The WP710A10SYCK is the direct equivalent substitute for the obsolete WP7104SYCK. All electrical, optical, and mechanical parameters are identical across both components. The substitute part maintains full compliance with RoHS3 and REACH regulatory requirements, with identical MSL rating of 1 (unlimited moisture sensitivity level).

The primary advantage of WP710A10SYCK is its active product status, ensuring long-term availability and supply chain continuity. Current inventory levels for WP710A10SYCK (4360 pcs) significantly exceed those of the obsolete WP7104SYCK (940 pcs), providing superior procurement reliability.

No circuit redesign, PCB layout modification, or application re-qualification is required when transitioning from WP7104SYCK to WP710A10SYCK. The parts are pin-compatible, footprint-compatible, and electrically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can WP710A10SYCK be used as a direct replacement for WP7104SYCK without circuit modifications?

A: Yes. WP710A10SYCK is a direct equivalent with identical electrical specifications (2V forward voltage, 20mA test current), optical characteristics (590nm wavelength, 1300mcd), and mechanical dimensions (3mm T-1 radial through-hole package). No circuit redesign is required.

Q: What is the difference between WP7104SYCK and WP710A10SYCK?

A: The primary difference is product status. WP7104SYCK is obsolete, while WP710A10SYCK is active. All technical specifications, including wavelength, brightness, voltage, current, lens configuration, and compliance certifications, are identical.

Q: Are the PCB footprints identical between these two parts?

A: Yes. Both parts share identical mechanical specifications: 2.90mm diameter, 5.90mm maximum height, radial through-hole mounting configuration, and 3mm T-1 lens package. PCB footprints are directly compatible.

Q: Does WP710A10SYCK meet the same regulatory requirements as WP7104SYCK?

A: Yes. WP710A10SYCK maintains identical compliance certifications: RoHS3 compliant, REACH unaffected, and MSL rating of 1 (unlimited). Both parts carry the same ECCN (EAR99) and HTSUS (8541.41.0000) classifications.

Q: What is the viewing angle for WP710A10SYCK?

A: The viewing angle is 34°, identical to WP7104SYCK. This specification determines the light distribution pattern and should be considered when designing indicator visibility into the application.

Q: Is the lens transparency the same for both parts?

A: Yes. Both WP7104SYCK and WP710A10SYCK feature clear lens transparency with colorless lens color, ensuring consistent optical transmission and yellow color appearance.