PM3GD12V LED Panel Indicator Green Diffused

Part Overview

The PM3GD12V is a panel-mounted LED indicator manufactured by Bivar Inc., designed for applications requiring a green diffused light signal. This component is classified as obsolete, necessitating identification of suitable substitute parts for ongoing design support and inventory management. The part operates at 12V DC with a 20mA current requirement and delivers 25 millicandela of green illumination at a peak wavelength of 568 nanometers.

Substiute Parts

PM3GD12V

Bivar Inc.In Stock: 799PM3GD12V Datasheet

Current PartRFQ

5580201814F

DialightIn Stock: 7465580201814F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM3GD12V is determined by mechanical and optical compatibility within the LED panel indicator category. The following parameters establish substitute eligibility:

Mechanical Compatibility: Panel cutout shape (round) and dimensions (0.16" / 4.06mm) must match exactly to ensure proper fit within the panel mounting aperture. Lens size (3mm, T-1) and lens style (round with domed top) must be identical for correct mechanical installation.

Optical Requirements: Lamp color and lens color (both green) with diffused lens transparency must be maintained to preserve the intended visual indicator function. The peak wavelength range (563nm to 568nm) and viewing angle (35° to 40°) remain within acceptable parameters for green indicator applications.

Electrical Specifications: Voltage and current parameters determine circuit compatibility. The PM3GD12V operates at 12V DC with 20mA current draw. Substitute parts may operate at different voltage and current values provided the application design accommodates appropriate current-limiting circuitry and voltage supply modifications.

Certifications and Compliance: Moisture sensitivity level and ECCN/HTSUS classifications must align with application requirements.

Parameter Comparison

Engineering Selection Recommendations

The 5580201814F (Dialight) qualifies as a viable substitute for the PM3GD12V based on mechanical and optical parameter alignment. Both components share identical panel cutout dimensions, lens size, lens style, and diffused green optical characteristics necessary for drop-in panel replacement.

The 5580201814F carries an active product status with ROHS3 compliance certification, providing long-term component availability and regulatory alignment for new designs. The PM3GD12V, classified as obsolete, presents supply chain risk and may not meet current regulatory requirements for new applications.

Critical differences in electrical parameters must be addressed in circuit design. The 5580201814F operates at 2.1V with a 25mA maximum current, substantially different from the PM3GD12V specification of 12V at 20mA. Circuit modifications including revised current-limiting resistor values and voltage supply changes are required for substitution.

Optical performance differences are minor: the 5580201814F delivers 16mcd compared to the PM3GD12V's 25mcd, with a peak wavelength shift of 5 nanometers (563nm versus 568nm) and a 5-degree increase in viewing angle (40° versus 35°). These differences remain within acceptable parameters for green indicator applications.

Frequently Asked Questions (FAQ)

Q: Can the 5580201814F directly replace the PM3GD12V without circuit modifications? A: Mechanical and optical replacement is direct; electrical circuit modifications are required. The voltage and current specifications differ substantially between these components. A new current-limiting resistor must be calculated based on the 2.1V forward voltage and 25mA maximum current of the 5580201814F, and the power supply voltage must be adjusted to 2.1V or appropriate limiting circuitry must be implemented.

Q: Are the panel mounting dimensions identical? A: Yes. Both components feature a 0.16-inch (4.06mm) round panel cutout and identical 3mm T-1 lens size with round domed-top styling. Mechanical panel installation is compatible without modifications.

Q: What is the impact of the 9-millicandela brightness difference? A: The 5580201814F delivers 16mcd compared to the PM3GD12V's 25mcd. This 36-percent reduction in brightness must be evaluated for the specific application. If visual indicator brightness is critical to system operation or user perception, this parameter difference may require design consideration.

Q: How do the wavelength specifications differ? A: The 5580201814F operates at 563nm peak wavelength versus the PM3GD12V at 568nm. Both wavelengths fall within the green spectrum range for human perception. The 5-nanometer difference is not perceptually distinct and maintains color consistency for green indicator applications.

Q: Does the increased viewing angle of the 5580201814F provide any advantage? A: The 5580201814F specifies a 40° viewing angle compared to the PM3GD12V's 35°. The wider viewing angle provides improved visibility across a broader range of observation angles, which may be beneficial in applications where the indicator is viewed from multiple positions.

Q: What compliance advantages does the 5580201814F provide? A: The 5580201814F carries ROHS3 compliance and REACH unaffected status, meeting current environmental and hazardous substance regulations. The PM3GD12V's compliance status is not specified, which may present regulatory barriers for new product certifications or market entries with current environmental standards.