Equivalent & Substitute Parts for 33-1/G4C-ARTB

Part Overview

The 33-1/G4C-ARTB is a green LED indication component manufactured by Everlight Electronics Co Ltd, designed for through-hole mounting applications. This 3mm diameter LED operates at a forward voltage of 3.5V with a dominant wavelength of 525nm, providing green light indication in discrete electronic assemblies. The component features a clear, domed lens with a 90° viewing angle and is packaged in a 4-DIP (0.200", 5.08mm) configuration.

The 33-1/G4C-ARTB is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

33-1/G4C-ARTB

Everlight Electronics Co LtdIn Stock: 98133-1/G4C-ARTB Datasheet

Current PartRFQ

R20GRN-4-0045

Bivar Inc.In Stock: 784R20GRN-4-0045 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 33-1/G4C-ARTB is determined by the following critical parameters:

Mandatory Matching Parameters:

• Color: Green
• Mounting Type: Through Hole
• Package / Case: 4-DIP (0.200", 5.08mm)
• Lens Transparency: Clear
• Lens Style: Round with Domed Top

Compatible Parameter Ranges:

• Wavelength - Dominant: 518nm to 525nm (green spectrum)
• Voltage - Forward (Vf) (Typ): 3.4V to 3.5V (within standard LED tolerance)
• Current - Test: 20mA to 30mA (operational current range)
• Viewing Angle: 45° to 90° (acceptable for indication applications)
• Lens Size: 3.00mm to 4.60mm Dia (physical form factor compatibility)
• Height (Max): 5.95mm to 7.80mm (PCB clearance consideration)

The substitute part R20GRN-4-0045 from Bivar Inc. meets all mandatory matching parameters and operates within the compatible parameter ranges, qualifying it as a functional equivalent for the obsolete 33-1/G4C-ARTB.

Parameter Comparison

Engineering Selection Recommendations

The R20GRN-4-0045 from Bivar Inc. is the qualified substitute for the obsolete 33-1/G4C-ARTB. Selection of this substitute is supported by the following engineering factors:

Product Status: The R20GRN-4-0045 maintains active product status with current manufacturing support, ensuring long-term availability and supply chain continuity compared to the obsolete 33-1/G4C-ARTB.

Compliance and Certifications: The R20GRN-4-0045 is ROHS3 compliant, meeting current environmental and regulatory requirements. The substitute demonstrates improved moisture sensitivity rating (MSL 1 with unlimited shelf life) compared to the original part (MSL 2A with 4-week limitation), providing superior storage and handling characteristics.

Electrical Compatibility: Forward voltage differential of 0.1V (3.4V vs 3.5V) and test current differential of 10mA (20mA vs 30mA) fall within standard LED operational tolerances and do not require circuit redesign for typical indication applications.

Optical Characteristics: Dominant wavelength of 521nm versus 525nm represents a 4nm shift within the green spectrum, maintaining visual consistency for indication purposes. The 45° viewing angle of the substitute is narrower than the original 90°, which may be advantageous in applications requiring reduced ambient light interference.

Physical Form Factor: The 4-DIP (0.200", 5.08mm) package remains identical, ensuring PCB footprint compatibility. The increased lens diameter (4.60mm vs 3.00mm) and height (7.80mm vs 5.95mm) require verification of available PCB clearance in the target application.

Frequently Asked Questions (FAQ)

Q: Can the R20GRN-4-0045 be used as a direct replacement for the 33-1/G4C-ARTB without circuit modifications?

A: The R20GRN-4-0045 is electrically compatible within standard LED operational parameters. The 0.1V forward voltage difference and 10mA test current difference do not require circuit redesign for typical indication applications. However, physical clearance must be verified due to increased lens diameter and component height.

Q: What is the significance of the wavelength difference between 525nm and 521nm?

A: Both wavelengths fall within the green spectrum and produce visually equivalent green light indication. The 4nm difference is imperceptible to human vision and does not affect functional performance in indication applications.

Q: Why does the R20GRN-4-0045 have a narrower viewing angle (45° vs 90°)?

A: The narrower 45° viewing angle concentrates light output in a more focused beam. This characteristic may be beneficial in applications where reduced ambient light interference is desired, but may limit visibility from extreme viewing angles compared to the original 90° specification.

Q: What does the improved MSL rating (1 vs 2A) mean for component handling?

A: MSL 1 with unlimited shelf life provides superior storage stability compared to MSL 2A with 4-week limitation. The R20GRN-4-0045 requires less stringent moisture control during storage and handling, reducing risk of moisture-induced failures.

Q: Is the larger lens size (4.60mm vs 3.00mm) a concern for PCB layout?

A: The larger lens diameter requires verification of available PCB clearance in the target application. If space constraints exist, alternative substitutes with smaller lens dimensions may be necessary. The 4-DIP package footprint remains identical, so only vertical clearance and lateral spacing require assessment.

Q: Does ROHS3 compliance affect the substitution decision?

A: ROHS3 compliance of the R20GRN-4-0045 ensures alignment with current environmental regulations and supports long-term supply chain viability. This is advantageous for new designs and ongoing production requiring regulatory compliance.