Equivalent & Substitute Parts for 3GD-S Green LED T-1 Through Hole

Part Overview

The 3GD-S is an active green LED indicator manufactured by Bivar Inc., designed for through-hole mounting applications requiring discrete green indication. This T-1 form factor LED operates at 2.1V forward voltage with a 25mcd brightness rating and diffused lens for uniform light distribution. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1), making it suitable for standard industrial and commercial applications. Equivalent substitute parts are identified to support design flexibility, supply chain continuity, and component availability across manufacturing environments.

Substiute Parts

3GD-S

Bivar Inc.In Stock: 7783GD-S Datasheet

Current PartRFQ

HLMP-1503-C00A1

Broadcom LimitedIn Stock: 6233HLMP-1503-C00A1 Datasheet

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HLMP-1503-C00A2

Broadcom LimitedIn Stock: 5265HLMP-1503-C00A2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3GD-S are identified based on strict electrical and mechanical parameter alignment within the green LED T-1 through-hole category. The substitution logic is based on the following critical parameters:

Electrical Compatibility:

• Forward voltage rating of 2.1V
• Green color specification
• Peak wavelength in the 565-568nm range

Mechanical Compatibility:

• 3mm T-1 lens form factor
• Round with domed top lens style
• Diffused lens transparency
• Through-hole mounting configuration
• Radial package orientation

Regulatory Compliance:

• ROHS3 compliance status
• MSL 1 rating (unlimited moisture sensitivity)

The identified substitute parts (HLMP-1503-C00A1 and HLMP-1503-C00A2) from Broadcom Limited meet these core parameters. Both substitutes operate at 2.1V forward voltage, feature 3mm T-1 diffused green lenses with round domed tops, and maintain through-hole mounting capability. Both are ROHS3 compliant with MSL 1 rating, ensuring regulatory and environmental compatibility with the original 3GD-S specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

The 3GD-S remains the preferred component when original manufacturer specification and exact brightness output (25mcd) are required. The part maintains active product status with established supply availability (724 pcs in stock).

Substitute Selection Basis:

HLMP-1503-C00A1 and HLMP-1503-C00A2 are functionally equivalent substitutes based on:

1. Electrical Equivalence: Both substitutes operate at identical 2.1V forward voltage with compatible green wavelength output (565nm vs. 568nm peak wavelength).

2. Mechanical Equivalence: Both maintain 3mm T-1 form factor with round domed top diffused lens and through-hole mounting configuration, ensuring PCB layout compatibility.

3. Regulatory Equivalence: Both substitutes carry ROHS3 compliance and MSL 1 rating, matching the original part's environmental and regulatory standing.

4. Active Product Status: All three parts maintain active product status, confirming ongoing manufacturer support and supply chain viability.

Operational Differences:

The Broadcom substitutes operate at 10mA test current versus the 3GD-S 20mA specification, resulting in lower brightness output (2.6mcd vs. 25mcd). The substitutes feature wider viewing angle (60° vs. 40°), providing broader light distribution. Both substitutes support right-angle mounting orientation in addition to standard through-hole configuration.

Selection Logic:

Choose HLMP-1503-C00A1 or HLMP-1503-C00A2 when supply constraints on the 3GD-S occur, when wider viewing angle is beneficial for the application, or when lower current consumption is advantageous. Both Broadcom parts are interchangeable with each other. Retain 3GD-S selection when the specified 25mcd brightness and 40° viewing angle are critical design requirements.

Frequently Asked Questions (FAQ)

Q: Can HLMP-1503-C00A1 and HLMP-1503-C00A2 be used interchangeably with the 3GD-S?

A: Both Broadcom parts meet the core electrical and mechanical parameters for substitution. However, the lower brightness output (2.6mcd vs. 25mcd) and wider viewing angle (60° vs. 40°) represent operational differences. Substitution is valid when these differences do not conflict with application requirements.

Q: What are the key differences between the 3GD-S and the Broadcom substitutes?

A: The primary differences are brightness rating (25mcd vs. 2.6mcd), test current (20mA vs. 10mA), viewing angle (40° vs. 60°), and mounting orientation options. Forward voltage (2.1V), lens size (3mm T-1), lens style (round domed top), and diffused transparency remain identical.

Q: Are the Broadcom HLMP-1503-C00A1 and HLMP-1503-C00A2 identical parts?

A: Both parts share identical electrical specifications, mechanical form factor, and regulatory compliance. The part numbers reflect different housing or packaging variants within the HLMP-1503 series, but electrical and optical performance are equivalent.

Q: Will the lower brightness of the Broadcom substitutes affect my application?

A: The 2.6mcd output of the Broadcom parts is significantly lower than the 3GD-S 25mcd rating. Applications requiring high brightness indication or long-distance visibility should retain the 3GD-S. Applications using the LED for status indication at close range or with ambient light filtering may accommodate the lower brightness.

Q: Are all three parts ROHS3 compliant?

A: Yes. The 3GD-S, HLMP-1503-C00A1, and HLMP-1503-C00A2 all carry ROHS3 compliance certification and MSL 1 (unlimited) moisture sensitivity rating.

Q: Can the right-angle mounting option of the Broadcom substitutes be used in place of radial mounting?

A: The Broadcom parts support both through-hole and right-angle mounting configurations. If your PCB design requires radial (straight-through) mounting, the standard through-hole orientation of the Broadcom parts is compatible. Right-angle mounting is an additional option not present in the 3GD-S specification.

Q: What is the wavelength difference between the 3GD-S and the Broadcom substitutes?

A: The 3GD-S operates at 568nm peak wavelength while the Broadcom substitutes operate at 565nm. This 3nm difference falls within the green LED spectrum and is not perceptible to human vision in typical indicator applications.