SSL-LXA228GD Equivalent & Substitute Parts

Part Overview

The SSL-LXA228GD is a green LED indication component manufactured by Lumex Opto/Components Inc., designed for through-hole axial mounting applications. This discrete LED features a 2.1V forward voltage, diffused lens, and 12mcd brightness rating with a 25° viewing angle. The component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement continuity.

Substiute Parts

SSL-LXA228GD

Lumex Opto/Components Inc.In Stock: 908SSL-LXA228GD Datasheet

Current PartRFQ

HLMP-6505

Broadcom LimitedIn Stock: 960251HLMP-6505 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SSL-LXA228GD is determined by the following critical parameters:

Electrical Compatibility:

• Forward voltage (Vf) must remain at 2.1V to ensure circuit compatibility without redesign
• Peak wavelength in the green spectrum (565nm range) maintains color consistency
• Axial through-hole mounting configuration with flat leads ensures mechanical fit

Optical Characteristics:

• Green color classification for indication functionality
• Lens style (round with domed top) and size (approximately 1.90-1.91mm diameter) for optical performance
• Viewing angle tolerance (25-28°) acceptable for indication applications

Regulatory & Environmental:

• ROHS3 compliance required for current procurement standards
• REACH unaffected status for supply chain continuity
• Moisture sensitivity level compatibility for storage and handling

The HLMP-6505 from Broadcom Limited meets these substitution criteria as an active product with matching electrical specifications and compatible mechanical form factor.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: HLMP-6505

The HLMP-6505 is the qualified substitute for SSL-LXA228GD based on the following engineering criteria:

Electrical Equivalence: The forward voltage of 2.1V is identical, ensuring direct circuit compatibility without modification to current-limiting resistor calculations or power supply specifications.

Mechanical Compatibility: Both components utilize axial through-hole mounting with flat leads and nearly identical lens diameters (1.90mm vs 1.91mm). PCB layout and mechanical assembly procedures require no revision.

Optical Performance: Peak wavelength at 565nm matches the original specification. The HLMP-6505 features a clear lens versus the diffused lens of the SSL-LXA228GD; however, both are green indication LEDs suitable for status display applications. The increased brightness (40mcd vs 12mcd) provides enhanced visibility margin.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying current procurement and environmental requirements.

Product Availability: The HLMP-6505 is an active product with substantial inventory availability (960,200 pcs), ensuring supply chain continuity and long-term procurement viability compared to the obsolete SSL-LXA228GD.

Frequently Asked Questions (FAQ)

Q: Can the HLMP-6505 be used as a direct drop-in replacement for SSL-LXA228GD?

A: Yes, the HLMP-6505 is mechanically and electrically compatible for direct substitution. Both components share identical forward voltage (2.1V), axial through-hole mounting configuration, and nearly identical physical dimensions. No circuit redesign is required.

Q: What is the difference between the diffused lens of SSL-LXA228GD and the clear lens of HLMP-6505?

A: The SSL-LXA228GD features a diffused lens that scatters light over a wider area with reduced intensity concentration. The HLMP-6505 features a clear lens that produces more focused light output. For indication applications, both lens types are functionally acceptable. The choice depends on specific visibility requirements and viewing geometry of the application.

Q: Why is the millicandela rating different between the two parts?

A: The HLMP-6505 (40mcd) has a higher brightness rating than the SSL-LXA228GD (12mcd). This difference is primarily due to the clear lens design of the substitute, which concentrates light more efficiently. For indication applications, the higher brightness of the HLMP-6505 provides improved visibility margin and is not detrimental to circuit operation.

Q: Are there any compliance or certification differences?

A: Both components are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution. The HLMP-6505 is an active product with current manufacturing support, whereas the SSL-LXA228GD is obsolete.

Q: What is the viewing angle difference, and does it affect substitution?

A: The SSL-LXA228GD has a 25° viewing angle, while the HLMP-6505 has a 28° viewing angle. This 3° difference is negligible for indication applications and does not impact substitution suitability. The slightly wider viewing angle of the substitute may provide improved visibility in certain mounting orientations.

Q: Can I use the HLMP-6505 at the same test current as the SSL-LXA228GD?

A: The SSL-LXA228GD is specified at 20mA test current, while the HLMP-6505 is specified at 10mA test current. Both components operate at the same forward voltage (2.1V). Circuit design should accommodate the substitute's lower test current specification, which typically results in reduced power consumption and improved thermal performance.

Q: What is the moisture sensitivity level difference?

A: The SSL-LXA228GD has MSL 1 (unlimited shelf life), while the HLMP-6505 has MSL 2A (4-week shelf life). This difference affects storage and handling procedures. The HLMP-6505 requires more controlled storage conditions but does not impact functional performance once installed in the circuit.