APT1608SRCPRV Equivalent & Substitute Parts

Part Overview

The APT1608SRCPRV is a red LED indication component manufactured by Kingbright in 0603 (1608 Metric) surface mount package. This discrete LED operates at 1.85V forward voltage with a dominant wavelength of 640nm and provides 30mcd luminous intensity. The component is classified as obsolete product status, necessitating identification of active equivalent parts for ongoing design requirements and procurement continuity.

Substiute Parts

APT1608SRCPRV

KingbrightIn Stock: 31693APT1608SRCPRV Datasheet

Current PartRFQ

APT1608SURCK

KingbrightIn Stock: 2421APT1608SURCK Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the APT1608SRCPRV is determined by the following critical parameters that must remain compatible:

Mechanical Compatibility:

• Package type: 0603 (1608 Metric) surface mount
• Physical dimensions: 1.60mm L x 0.80mm W, 0.75mm maximum height
• Lens style: Rectangle with flat top
• Lens size: 1.20mm x 0.80mm

Electrical Compatibility:

• Color: Red spectrum
• Lens transparency: Clear
• Viewing angle: 120°
• Forward voltage range: Acceptable variation within circuit design tolerance
• Luminous intensity: Acceptable variation for indication applications
• Wavelength: Red spectrum (630nm to 655nm range)

Regulatory & Environmental:

• RoHS3 compliance required
• MSL rating: 3 (168 Hours)
• Base product number: APT1608

The APT1608SURCK meets all mechanical, electrical, and regulatory criteria for direct substitution while offering improved specifications in active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: APT1608SURCK

The APT1608SURCK is the direct equivalent for APT1608SRCPRV applications. Both components share identical mechanical form factors, package specifications, and regulatory compliance status. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Electrical Parameter Differences:

The APT1608SURCK operates at 1.95V forward voltage compared to 1.85V for the original part, representing a 0.10V increase. This difference is within typical circuit design tolerance for LED indication applications and does not preclude direct substitution in standard current-limiting resistor configurations.

The substitute part provides 80mcd luminous intensity versus 30mcd in the original, offering enhanced brightness for indication purposes. The dominant wavelength shifts from 640nm to 630nm, remaining within the red spectrum and maintaining visual color consistency for indication applications.

Compliance & Availability:

Both parts maintain ROHS3 compliance and identical MSL ratings. The APT1608SURCK is available in Tape & Reel packaging format, suitable for automated assembly processes. The original part is classified as obsolete, making the active substitute the appropriate selection for new designs and ongoing procurement.

Frequently Asked Questions (FAQ)

Q: Can APT1608SURCK be used as a direct replacement for APT1608SRCPRV in existing designs?

A: Yes. Both components share identical mechanical dimensions (1.60mm x 0.80mm x 0.75mm maximum height), package type (0603/1608 Metric), and mounting method (surface mount). The forward voltage difference of 0.10V and increased luminous intensity do not prevent direct substitution in standard LED indication circuits with appropriate current-limiting resistor selection.

Q: What is the impact of the 0.10V forward voltage difference?

A: The forward voltage increase from 1.85V to 1.95V requires minimal circuit adjustment. In typical LED indication circuits using current-limiting resistors, this difference is accommodated within standard design tolerances. Recalculation of series resistor values may be performed using Ohm's law if precise current control is required.

Q: Does the increased brightness (80mcd vs 30mcd) affect compatibility?

A: The higher luminous intensity of the substitute part provides enhanced visibility for indication purposes. This represents an improvement in performance and does not create compatibility issues. Applications requiring specific brightness levels should evaluate the 80mcd output against design requirements.

Q: Are there packaging differences between these parts?

A: The original APT1608SRCPRV is supplied in bulk packaging, while the APT1608SURCK is available in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and provides improved handling and placement efficiency.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both APT1608SRCPRV and APT1608SURCK are ROHS3 compliant with identical MSL ratings of 3 (168 Hours). Regulatory and environmental compliance is equivalent between the two parts.

Q: What is the wavelength difference between 640nm and 630nm?

A: Both wavelengths fall within the red spectrum and produce visually identical color for indication applications. The 10nm difference is not perceptible to human vision in LED indication contexts and does not affect functional compatibility.