VAOL-3HCE4 Yellow LED Equivalent & Substitute Parts

Part Overview

The VAOL-3HCE4 is a yellow 590nm LED indication component manufactured by Visual Communications Company (VCC) in a through-hole radial package. This discrete LED operates at 1.8V forward voltage with a 150mcd brightness rating and features a 3.00mm clear domed lens. The component is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity.

Substiute Parts

VAOL-3HCE4

Visual Communications Company - VCCIn Stock: 752VAOL-3HCE4 Datasheet

Current PartRFQ

WP710A10LSYCK/J3

KingbrightIn Stock: 3253WP710A10LSYCK/J3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VAOL-3HCE4 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Wavelength - Dominant: 590nm (yellow spectrum)
• Color: Yellow
• Lens Transparency: Clear
• Mounting Type: Through Hole
• Package / Case: Radial configuration

Secondary Compatibility Criteria:

• Lens Size: 3.00mm diameter (T-1 standard)
• Voltage - Forward (Vf): Nominal 1.8V to 1.85V range
• Millicandela Rating: Minimum 150mcd
• Viewing Angle: 30° or greater
• Height (Max): Within PCB assembly constraints (5.25mm to 5.90mm acceptable)

The substitute part WP710A10LSYCK/J3 meets all primary and secondary criteria, maintaining electrical and mechanical compatibility while offering improved specifications in brightness (200mcd) and test current efficiency (2mA vs 20mA).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: WP710A10LSYCK/J3 (Kingbright)

The WP710A10LSYCK/J3 is the qualified substitute for the obsolete VAOL-3HCE4. Selection is based on the following engineering factors:

1. Electrical Compatibility: Forward voltage differential of 0.05V (1.8V vs 1.85V) is within acceptable tolerance for standard LED circuit designs. Test current specification of 2mA versus 20mA indicates improved efficiency characteristics.

2. Optical Compatibility: Both components operate at 590nm dominant wavelength with clear lens transparency. The substitute provides enhanced brightness (200mcd vs 150mcd) and wider viewing angle (34° vs 30°), representing performance improvement without functional compromise.

3. Mechanical Compatibility: Both components utilize through-hole radial packages with 3mm lens diameter (T-1 standard). Height differential of 0.65mm (5.90mm vs 5.25mm) remains within typical PCB assembly tolerances.

4. Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements.

5. Product Status: The substitute part is active production status with confirmed inventory availability (3221 pcs), ensuring long-term supply continuity compared to the obsolete original component.

Frequently Asked Questions (FAQ)

Q: Can WP710A10LSYCK/J3 be used as a direct replacement for VAOL-3HCE4 in existing PCB designs?

A: Yes. Both components share identical through-hole radial package configuration, 3mm lens diameter, and 590nm yellow wavelength specification. Forward voltage difference of 0.05V and improved brightness characteristics present no functional incompatibility. PCB footprints and lead spacing are compatible.

Q: What is the significance of the different test current specifications (20mA vs 2mA)?

A: Test current specification indicates the measurement condition for brightness rating. The 2mA test current for WP710A10LSYCK/J3 reflects improved LED efficiency compared to the 20mA specification for VAOL-3HCE4. Actual operating current in circuit design is determined by series resistor selection and supply voltage, independent of test current specification.

Q: Does the 0.65mm height difference affect PCB assembly?

A: No. The height differential (5.90mm vs 5.25mm) remains within standard through-hole component tolerances and typical PCB assembly clearance specifications. Both components are suitable for standard wave soldering and automated assembly processes.

Q: Are there any compliance or certification differences between the two parts?

A: No. Both VAOL-3HCE4 and WP710A10LSYCK/J3 maintain ROHS3 compliance and REACH unaffected status. Regulatory and environmental certifications are equivalent.

Q: Why is the substitute part rated at higher brightness (200mcd vs 150mcd)?

A: The brightness rating difference reflects manufacturing improvements in LED technology and efficiency. The substitute part delivers superior optical performance while maintaining electrical compatibility. Circuit designs based on 150mcd minimum brightness requirement will function with enhanced visual output using the substitute component.

Q: Is the 4° viewing angle increase (34° vs 30°) significant for application compatibility?

A: The viewing angle increase represents improved light distribution characteristics. Applications requiring 30° minimum viewing angle will function with enhanced performance. No design modifications are required to accommodate the wider viewing angle specification.