SSL-LX3044SOD Equivalent & Substitute Parts Reference

Part Overview

The SSL-LX3044SOD is an orange diffused LED indicator manufactured by Lumex Opto/Components Inc., designed for through-hole radial mounting applications. This T-1 form factor LED operates at 2V forward voltage with a 100mcd brightness rating and 60° viewing angle. The component is ROHS3 compliant and currently active in production with 949 units in stock.

Substitute parts are identified to address inventory availability, performance requirements, or specific application constraints while maintaining compatibility with standard T-1 through-hole mounting footprints and electrical operating parameters.

Substiute Parts

SSL-LX3044SOD

Lumex Opto/Components Inc.In Stock: 985SSL-LX3044SOD Datasheet

Current PartRFQ

SLI-343D8U3F

Rohm SemiconductorIn Stock: 1392SLI-343D8U3F Datasheet

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SLI-343Y8Y3F

Rohm SemiconductorIn Stock: 9066SLI-343Y8Y3F Datasheet

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WP710A10SYD

KingbrightIn Stock: 2614WP710A10SYD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSL-LX3044SOD are grouped based on the following substitution criteria:

Primary Substitution Criteria (Mandatory Compatibility):

• Mounting Type: Through Hole (radial configuration)
• Package / Case: Radial, T-1 form factor
• Lens Transparency: Diffused
• Current - Test: 20mA
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Parameters (Application-Dependent):

• Voltage - Forward (Vf): 2V to 2.2V range acceptable
• Viewing Angle: 40° to 60° range
• Millicandela Rating: 100mcd to 900mcd range
• Wavelength - Peak: Orange (605nm to 610nm) or Yellow (590nm) spectrum

Identified Substitute Parts:

1. SLI-343D8U3F (Rohm Semiconductor): Orange diffused LED, 605nm wavelength, 2.2V forward voltage, 470mcd brightness, 40° viewing angle. Maintains T-1 through-hole radial configuration with ROHS3 compliance.

2. SLI-343Y8Y3F (Rohm Semiconductor): Yellow diffused LED, 590nm wavelength, 2.2V forward voltage, 470mcd brightness, 40° viewing angle. Maintains T-1 through-hole radial configuration with ROHS3 compliance. Color differs from main part.

3. WP710A10SYD (Kingbright): Yellow diffused LED, 590nm wavelength, 2V forward voltage, 900mcd brightness, 40° viewing angle. Maintains T-1 through-hole radial configuration with ROHS3 compliance. Color differs from main part.

Parameter Comparison

Engineering Selection Recommendations

SLI-343D8U3F Selection Criteria: This substitute maintains orange color specification (605nm wavelength) and is recommended when color-critical indication is required. Forward voltage increases from 2V to 2.2V, requiring circuit verification for compliance with existing current-limiting resistor designs. Brightness increases to 470mcd with reduced viewing angle (40° vs. 60°), suitable for applications requiring higher intensity in narrower beam patterns. Height increases from 4.60mm to 5.60mm; verify PCB clearance in confined mounting spaces. ROHS3 compliance and MSL rating match the main part.

SLI-343Y8Y3F Selection Criteria: This substitute introduces yellow color (590nm wavelength) and is applicable only when color change is acceptable for the application. Forward voltage increases to 2.2V; circuit verification required. Brightness increases to 470mcd with 40° viewing angle. Height increases to 5.60mm. ROHS3 compliance and MSL rating match the main part. Highest inventory availability (8965 units) among substitutes.

WP710A10SYD Selection Criteria: This substitute introduces yellow color (590nm wavelength) and is applicable only when color change is acceptable. Forward voltage remains at 2V, maintaining compatibility with existing circuit designs. Brightness increases significantly to 900mcd with 40° viewing angle, suitable for high-visibility applications. Height increases to 5.90mm; verify PCB clearance. ROHS3 compliance and MSL rating match the main part. Moderate inventory availability (2577 units).

All substitute parts maintain through-hole radial mounting configuration, diffused lens transparency, 20mA test current, and regulatory compliance status (ROHS3, REACH Unaffected, EAR99 ECCN classification).

Frequently Asked Questions (FAQ)

Q: Can SLI-343D8U3F replace SSL-LX3044SOD in a color-critical application?

A: Yes. SLI-343D8U3F maintains orange color specification at 605nm wavelength, within the orange spectrum range. However, forward voltage increases from 2V to 2.2V. Verify that existing current-limiting resistor values accommodate this voltage increase without exceeding maximum LED current ratings. Height increases from 4.60mm to 5.60mm; confirm PCB clearance.

Q: What are the implications of using yellow LEDs (SLI-343Y8Y3F or WP710A10SYD) as substitutes for the orange SSL-LX3044SOD?

A: Yellow substitutes (590nm wavelength) differ from the orange main part (610nm wavelength) and are applicable only when color change is acceptable for the application. Both yellow substitutes maintain through-hole radial mounting, diffused lens transparency, and 20mA test current. SLI-343Y8Y3F operates at 2.2V forward voltage; WP710A10SYD operates at 2V. Both increase brightness to 470mcd and 900mcd respectively, with 40° viewing angle compared to the main part's 60°. Height increases in both cases.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (SLI-343D8U3F, SLI-343Y8Y3F, WP710A10SYD) are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the main part SSL-LX3044SOD.

Q: How does the viewing angle difference affect substitution?

A: The main part SSL-LX3044SOD has a 60° viewing angle, while all substitute parts have 40° viewing angles. This narrower beam pattern concentrates light intensity in a smaller cone. Applications requiring wide-angle indication may experience reduced visibility with substitutes. Applications requiring focused, high-intensity indication benefit from the narrower angle.

Q: What is the impact of increased forward voltage in SLI-343D8U3F and SLI-343Y8Y3F?

A: Forward voltage increases from 2V (main part) to 2.2V (both Rohm substitutes). In series-resistor current-limiting circuits, this increases voltage drop across the resistor, potentially reducing LED current. Recalculate resistor values using Ohm's law: R = (Vsupply - Vf) / Iled. Verify that the new resistor value maintains desired LED brightness within maximum current ratings.

Q: Can I use WP710A10SYD without circuit modification?

A: WP710A10SYD maintains 2V forward voltage, matching the main part SSL-LX3044SOD. Existing current-limiting resistor values remain valid. However, brightness increases to 900mcd (compared to 100mcd main part), and color changes to yellow (590nm vs. 610nm orange). Verify that increased brightness is acceptable for the application and that color change does not affect system function or user interface requirements.

Q: What are the inventory considerations for these substitutes?

A: SSL-LX3044SOD: 949 units in stock. SLI-343D8U3F: 1311 units in stock. SLI-343Y8Y3F: 8965 units in stock (highest availability). WP710A10SYD: 2577 units in stock. Selection based on inventory availability should be secondary to electrical and mechanical compatibility requirements.

Q: Are there height clearance concerns with substitute parts?

A: Yes. Main part SSL-LX3044SOD maximum height is 4.60mm. SLI-343D8U3F and SLI-343Y8Y3F maximum height is 5.60mm (1mm increase). WP710A10SYD maximum height is 5.90mm (1.30mm increase). Verify PCB layout clearance above LED mounting location, particularly in confined spaces or under shielding components.