Dialight 5710122 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5710122 is a 2mm bi-level green LED circuit board indicator designed for through-hole, right-angle mounting applications. This component features a diffused, tinted lens with a domed top, operating at 2.1V with a 20mA current rating and 8.7mcd brightness output at a 38° viewing angle. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications requiring equivalent or compatible alternatives.

Substiute Parts

5710122

DialightIn Stock: 7525710122 Datasheet

Current PartRFQ

5710122F

DialightIn Stock: 27685710122F Datasheet

DirectRFQ

WP4060VH/2GD

KingbrightIn Stock: 1048WP4060VH/2GD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5710122 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Configuration: 2 High (bi-level)
• Color: Green
• Mounting Type: Through Hole, Right Angle
• Current Rating: 20mA
• Lens Type: Diffused, Tinted

Secondary Compatibility Parameters:

• Voltage Rating: 2.1V nominal (tolerance range acceptable)
• Wavelength - Peak: 565nm nominal (green spectrum range)
• Millicandela Rating: 8.7mcd nominal (brightness tolerance acceptable)
• Viewing Angle: 38° nominal (wider angles acceptable for general illumination)
• Lens Size: 2.00mm Dia (mechanical fit consideration)

The substitute parts listed maintain compatibility across primary criteria while allowing minor variations in secondary parameters within acceptable engineering tolerances for LED circuit board indicator applications.

Parameter Comparison

Engineering Selection Recommendations

5710122F (Dialight - Direct Substitute): This part is the recommended primary substitute. It maintains identical electrical specifications (2.1V, 20mA, 8.7mcd, 565nm) and mechanical mounting configuration as the obsolete 5710122. The 5710122F is currently in active production status with improved RoHS3 compliance and superior moisture sensitivity rating (MSL 1 vs. MSL 2), providing enhanced reliability for long-term storage and deployment. This part is the direct functional equivalent and requires no circuit redesign.

WP4060VH/2GD (Kingbright - Similar Substitute): This Kingbright part provides functional substitution with minor parameter variations. The voltage rating increases from 2.1V to 2.2V (0.1V differential), wavelength shifts from 565nm to 568nm (within green spectrum tolerance), and brightness increases from 8.7mcd to 9mcd. The viewing angle expands from 38° to 70°, providing wider light distribution. The lens diameter reduces from 2.00mm to 1.80mm, requiring mechanical fit verification in the target application. This part is suitable where the parameter variations are acceptable and cross-manufacturer sourcing is required. RoHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q: Can the 5710122F directly replace the obsolete 5710122 without circuit modification?

A: Yes. The 5710122F maintains identical electrical parameters (voltage, current, brightness, wavelength) and mounting configuration. No circuit redesign is required for direct substitution.

Q: What are the key differences between the 5710122F and WP4060VH/2GD?

A: Both parts share the same configuration, color, current rating, and mounting type. The WP4060VH/2GD operates at 2.2V (versus 2.1V), produces 9mcd brightness (versus 8.7mcd), and features a 70° viewing angle (versus 38°). The lens diameter is 1.80mm (versus 2.00mm). These variations are within acceptable tolerances for general LED indicator applications but require verification for specific mechanical and optical requirements.

Q: Is the 1.80mm lens diameter of the WP4060VH/2GD compatible with 2.00mm mounting holes?

A: The 1.80mm lens diameter is smaller than the 2.00mm specification of the original part. Mechanical fit must be verified in the target application to ensure proper seating and alignment in the PCB mounting hole.

Q: What is the significance of the RoHS compliance difference?

A: The 5710122 is RoHS non-compliant, while both substitute parts (5710122F and WP4060VH/2GD) are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the substitute parts provide regulatory compliance. For legacy systems without RoHS mandates, this difference is not a functional constraint.

Q: How do the moisture sensitivity levels affect component handling?

A: The 5710122 has MSL 2 (1 Year storage limit), while the 5710122F has MSL 1 (Unlimited storage). The WP4060VH/2GD lists MSL as Not Applicable. Lower MSL ratings indicate reduced moisture absorption risk and longer shelf life. The 5710122F offers superior moisture performance for inventory management.

Q: Can the WP4060VH/2GD be used in applications requiring the exact 38° viewing angle of the original part?

A: The WP4060VH/2GD provides a 70° viewing angle, which is wider than the 38° specification. For applications where the narrower viewing angle is a functional requirement, the 5710122F is the appropriate choice. For general illumination applications, the wider angle of the WP4060VH/2GD is typically acceptable.