PM3GD5V Equivalent & Substitute Parts

Part Overview

The PM3GD5V is a panel-mount LED indicator manufactured by Bivar Inc., featuring a green diffused lens with 25mcd brightness rating. This component is designed for 5V DC applications requiring 20mA operating current with a 35° viewing angle. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs requiring similar performance characteristics.

Substiute Parts

PM3GD5V

Bivar Inc.In Stock: 771PM3GD5V Datasheet

Current PartRFQ

5580201814F

DialightIn Stock: 7465580201814F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM3GD5V requires compatibility across mechanical and electrical parameters. The primary constraint is the panel cutout dimension of 0.16" (4.06mm) with round shape, which limits candidates to 3mm T-1 form factor LEDs. Secondary constraints include lens color (green) and lens transparency (diffused) for visual consistency.

Electrical parameters present the most significant variation among potential substitutes. The PM3GD5V operates at 5V with 20mA current draw. Substitute parts may operate at different forward voltages and current ratings, requiring circuit redesign or the addition of current-limiting components. The brightness rating (25mcd) and wavelength (568nm) establish the baseline for visual performance; substitutes with lower brightness or different wavelengths may require application assessment.

The following parameters determine substitution viability:

• Panel cutout dimensions and shape (mechanical fit)
• Lens size and form factor (mechanical fit)
• Lens color and transparency (visual consistency)
• Voltage and current ratings (circuit compatibility)
• Brightness and wavelength (performance equivalence)

Parameter Comparison

Engineering Selection Recommendations

The 5580201814F from Dialight is mechanically compatible with the PM3GD5V, sharing identical panel cutout dimensions, lens size, and form factor. Both components feature green diffused lenses with round domed tops, ensuring visual consistency in panel-mount applications.

Electrical compatibility requires circuit evaluation. The PM3GD5V operates at 5V with 20mA current, while the 5580201814F has a typical forward voltage of 2.1V with maximum current of 25mA. Direct substitution in existing 5V circuits is not possible without modification. The substitute requires either a different current-limiting resistor value or a redesigned power supply configuration.

The 5580201814F provides a wider viewing angle (40° versus 35°), which may improve visibility in certain applications. However, the brightness rating is lower at 16mcd compared to 25mcd, representing a 36% reduction. Applications requiring the original brightness level should assess whether this reduction impacts system performance.

The 5580201814F is currently in active production status, ensuring long-term availability. Both components carry identical MSL, ECCN, and HTSUS classifications, indicating equivalent regulatory and compliance standing. The Dialight component is RoHS3 compliant and REACH unaffected, meeting current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the 5580201814F be directly installed in place of the PM3GD5V without circuit modification?

A: No. The PM3GD5V operates at 5V DC, while the 5580201814F has a typical forward voltage of 2.1V. Direct substitution requires recalculation of current-limiting resistor values or modification of the power supply circuit. The different electrical characteristics necessitate circuit redesign.

Q: Are the mechanical dimensions identical between these two parts?

A: Yes. Both components feature 3mm T-1 form factor lenses with 0.16" (4.06mm) round panel cutout dimensions. Mechanical mounting compatibility is confirmed. Both have round domed top lens styles.

Q: What is the brightness difference between these parts?

A: The PM3GD5V provides 25mcd brightness, while the 5580201814F provides 16mcd. This represents a 36% reduction in brightness. Applications sensitive to indicator visibility should evaluate whether this reduction is acceptable for the intended use environment.

Q: Are there differences in color appearance between these parts?

A: Both parts feature green diffused lenses. The peak wavelengths differ slightly (568nm versus 563nm), but both fall within the green spectrum. The visual difference is negligible for typical panel indicator applications.

Q: What is the viewing angle difference?

A: The PM3GD5V has a 35° viewing angle, while the 5580201814F has a 40° viewing angle. The substitute provides a 5° wider viewing angle, potentially improving visibility from off-axis positions.

Q: Is the 5580201814F available in production?

A: Yes. The 5580201814F is classified as active product status, indicating current manufacturing and availability. The PM3GD5V is obsolete and no longer produced.

Q: Do these parts have the same environmental compliance ratings?

A: Both components carry identical MSL (1 - Unlimited), ECCN (EAR99), and HTSUS (8541.41.0000) classifications. The 5580201814F is additionally certified as RoHS3 compliant and REACH unaffected.

Q: What current rating should be used for circuit design with the 5580201814F?

A: The 5580201814F has a maximum current rating of 25mA, compared to 20mA for the PM3GD5V. Circuit design should account for the 2.1V forward voltage and 25mA maximum current when calculating resistor values for the 5V supply.