SSL-LX3054LGD Equivalent & Substitute Parts

Part Overview

The SSL-LX3054LGD is a green diffused T-1 through-hole LED manufactured by Lumex Opto/Components Inc., designed for discrete LED indication applications. This component operates at a forward voltage of 2.2V with a test current of 20mA, delivering 30 millicandela brightness with a 60-degree viewing angle. The part is Active in product status and fully compliant with ROHS3 and REACH regulations.

Substitute parts become necessary when the primary component experiences extended lead times, inventory constraints, or when design flexibility permits operation within alternative electrical specifications. The parts listed below maintain compatibility through matching mechanical form factors, mounting types, and core functional characteristics while operating within acceptable electrical parameter ranges.

Key Parameters

Parameter	SSL-LX3054LGD Value	Substitution Relevance
Color	Green	Critical - Must match for visual indication
Lens Transparency	Diffused	Critical - Determines light distribution characteristics
Lens Size	3mm, T-1	Critical - Mechanical compatibility with PCB footprint
Mounting Type	Through Hole	Critical - Determines assembly compatibility
Voltage - Forward (Vf) (Typ)	2.2V	Important - Affects circuit design and current limiting requirements
Current - Test	20mA	Important - Determines brightness and power dissipation
Millicandela Rating	30mcd	Important - Brightness specification for indication visibility
Viewing Angle	60°	Important - Determines visibility range in application
Wavelength - Peak	565nm	Important - Defines green color perception
Package / Case	Radial	Critical - Physical lead configuration
Height (Max)	5.25mm	Important - PCB clearance and assembly considerations
RoHS Status	ROHS3 Compliant	Critical - Regulatory compliance requirement

Substitute Part Grouping Explanation

Substitute parts are categorized based on the degree of electrical and mechanical compatibility with the SSL-LX3054LGD:

Direct Manufacturer Equivalents maintain identical electrical specifications (2.2V forward voltage, 20mA test current, 30mcd brightness, 60-degree viewing angle) and mechanical form factor. These parts differ only in packaging configuration or minor height variations within acceptable tolerances.

Parametric Equivalents share the same electrical characteristics and mechanical form factor but may have minor dimensional variations. These parts are functionally interchangeable in the same circuit design without modification.

Similar Parts operate within the same product category (green diffused T-1 through-hole LEDs) but feature different electrical specifications. Substitution requires circuit design review to accommodate variations in forward voltage, test current, brightness rating, or viewing angle. These parts are suitable only when the application circuit can tolerate the specified parameter differences.

The following parameters determine substitution eligibility:

Color (must be Green)
Lens Transparency (must be Diffused)
Lens Size (must be 3mm, T-1)
Mounting Type (must be Through Hole)
Package / Case (must be Radial)
RoHS Status (must be ROHS3 Compliant)

Parameter Comparison

Part Number	Manufacturer	Vf (Typ)	Current - Test	Millicandela	Viewing Angle	Height (Max)	Wavelength - Peak	Inventory	Substitution Category
SSL-LX3054LGD	Lumex	2.2V	20mA	30mcd	60°	5.25mm	565nm	1032 Pcs	Main Part
SSL-LX3044LGD	Lumex	2.2V	20mA	30mcd	60°	4.60mm	565nm	16469 Pcs	Direct Equivalent
SSL-LX305F4GD	Lumex	2.2V	20mA	30mcd	60°	5.00mm	565nm	20796 Pcs	Parametric Equivalent
3GD-F	Bivar Inc.	2.1V	20mA	25mcd	35°	5.30mm	568nm	1419 Pcs	Similar Part
HLMP-1503-C0002	Broadcom Limited	2.1V	10mA	2.6mcd	60°	6.35mm	565nm	1125 Pcs	Similar Part
HLMP-1640	Broadcom Limited	5V	10mA	1.6mcd	60°	6.35mm	565nm	21912 Pcs	Similar Part
HLMP-1640-B00A1	Broadcom Limited	5V	10mA	1.6mcd	120°	N/A	565nm	4405 Pcs	Similar Part
HLMP-1640-B00A2	Broadcom Limited	5V	10mA	1.6mcd	60°	N/A	565nm	7004 Pcs	Similar Part
HLMP-1641	Broadcom Limited	12V	13mA	1.6mcd	60°	6.35mm	565nm	4525 Pcs	Similar Part
HLMP-1790	Broadcom Limited	1.9V	2mA	2.3mcd	50°	6.35mm	565nm	24307 Pcs	Similar Part
HLMP-1790-A0002	Broadcom Limited	1.9V	2mA	2.3mcd	50°	6.35mm	565nm	26157 Pcs	Similar Part

Engineering Selection Recommendations

Direct Substitution (No Circuit Modification Required):

SSL-LX3044LGD and SSL-LX305F4GD are direct substitutes for SSL-LX3054LGD. Both parts maintain identical electrical specifications (2.2V forward voltage, 20mA test current, 30mcd brightness, 60-degree viewing angle) and are manufactured by Lumex Opto/Components Inc. The only differences are minor height variations (4.60mm and 5.00mm respectively versus 5.25mm), which remain within acceptable PCB clearance tolerances for standard through-hole applications. Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating. SSL-LX305F4GD offers the highest inventory availability at 20,796 pieces.

Conditional Substitution (Circuit Design Review Required):

Bivar Inc. 3GD-F, Broadcom HLMP-1503-C0002, HLMP-1640 series, HLMP-1641, and HLMP-1790 series parts are suitable substitutes only when the application circuit design accommodates their specific electrical parameters. These parts differ from the SSL-LX3054LGD in forward voltage, test current, or brightness rating. Circuit designers must verify that existing current-limiting resistor values and power supply voltages remain appropriate for the substitute part's electrical characteristics.

All listed substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory compatibility with the original SSL-LX3054LGD specification.

Frequently Asked Questions (FAQ)

Q: Can SSL-LX3044LGD replace SSL-LX3054LGD without any circuit modifications?

A: Yes. SSL-LX3044LGD is a direct electrical equivalent with identical forward voltage (2.2V), test current (20mA), brightness (30mcd), and viewing angle (60°). The only difference is a reduced maximum height of 4.60mm compared to 5.25mm, which is advantageous for applications with limited vertical clearance. No circuit modifications are required.

Q: What is the key difference between SSL-LX305F4GD and SSL-LX3054LGD?

A: SSL-LX305F4GD maintains identical electrical specifications but has a maximum height of 5.00mm versus 5.25mm for the SSL-LX3054LGD. This represents a minor dimensional variation within acceptable tolerances. Electrical performance and circuit compatibility remain unchanged.

Q: Can I use HLMP-1640 in place of SSL-LX3054LGD?

A: HLMP-1640 is not a direct substitute. It operates at 5V forward voltage compared to 2.2V for the SSL-LX3054LGD, and delivers only 1.6mcd brightness versus 30mcd. Substitution requires complete circuit redesign to accommodate the higher voltage requirement and reduced brightness output. This part is suitable only for applications where these electrical differences are acceptable.

Q: What are the mechanical compatibility requirements for substitution?

A: All substitute parts listed maintain the same mechanical form factor: 3mm T-1 lens size, diffused green lens, through-hole radial package, and round domed top lens style. These characteristics ensure compatibility with existing PCB footprints and assembly processes. Height variations (ranging from 4.60mm to 6.35mm) must be evaluated against specific PCB clearance requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance status, matching the regulatory requirement of the SSL-LX3054LGD. All parts also maintain unlimited moisture sensitivity rating (MSL 1).

Q: Which substitute part offers the best inventory availability?

A: HLMP-1790-A0002 offers the highest inventory at 26,157 pieces, followed by HLMP-1790 at 24,307 pieces and SSL-LX305F4GD at 20,796 pieces. However, inventory availability should be evaluated against electrical compatibility requirements for your specific application.

Q: Can I use HLMP-1790 for low-power applications?

A: Yes. HLMP-1790 operates at 1.9V forward voltage with only 2mA test current, making it suitable for battery-powered or low-power circuit designs. However, brightness is significantly reduced to 2.3mcd compared to 30mcd for the SSL-LX3054LGD, and viewing angle is narrower at 50° versus 60°. Substitution is appropriate only when these reduced specifications meet application requirements.

Q: What is the difference between HLMP-1640-B00A1 and HLMP-1640-B00A2?

A: Both parts are Broadcom HLMP-1640 variants with identical electrical specifications (5V, 10mA, 1.6mcd). The primary difference is viewing angle: HLMP-1640-B00A1 provides 120° viewing angle while HLMP-1640-B00A2 provides 60° viewing angle. Both feature right-angle through-hole mounting, distinguishing them from radial-mounted alternatives.

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