SSF-LXHM140SUGD Equivalent & Substitute Parts

Part Overview

The SSF-LXHM140SUGD is a green LED circuit board indicator manufactured by Lumex Opto/Components Inc. This single green diffused LED features a 3mm T-1 through-hole right-angle mounting configuration with a round domed top lens. The component operates at 2.2V with a 20mA current rating and delivers 200mcd luminous intensity at a 574nm peak wavelength. The part maintains Active product status and carries ROHS3 compliance with REACH Unaffected designation.

Substitute parts become necessary when the primary component experiences extended lead times, inventory constraints, or when design flexibility permits operation within alternative electrical and mechanical parameters. The SSF-LXHM140SUGD has one identified equivalent substitute that maintains functional compatibility within specified tolerance ranges.

Substiute Parts

SSF-LXHM140SUGD

Lumex Opto/Components Inc.In Stock: 948SSF-LXHM140SUGD Datasheet

Current PartRFQ

5510209F

DialightIn Stock: 28015510209F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSF-LXHM140SUGD is determined by strict alignment with the following critical parameters:

Mechanical Compatibility Requirements:

• Lens size must be 3mm, T-1 through-hole configuration
• Mounting type must be right-angle through-hole
• Lens style must be round with domed top

Optical Compatibility Requirements:

• Color must be green
• Lens type must be diffused
• Configuration must be single LED

Electrical Operating Parameters:

• Voltage rating must fall within acceptable circuit design tolerances
• Current rating must be compatible with existing current-limiting circuit design
• Viewing angle must support the intended application visibility requirements

The identified substitute part 5510209F meets these core mechanical and optical requirements while operating within modified electrical parameters. This substitute maintains the same physical form factor and optical characteristics while presenting different voltage, current, and luminous intensity specifications that require circuit design verification.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (SSF-LXHM140SUGD): The SSF-LXHM140SUGD remains the preferred selection when available. This part delivers specified performance across all electrical and optical parameters with 200mcd luminous intensity and 60° viewing angle. Active product status and ROHS3 compliance ensure continued availability and regulatory alignment. Current inventory of 839 pieces supports immediate procurement.

Substitute Part Selection (5510209F): The Dialight 5510209F substitute part is electrically and mechanically compatible for applications where the following parameter variations are acceptable:

• Reduced luminous intensity from 200mcd to 16mcd
• Reduced current consumption from 20mA to 10mA
• Reduced viewing angle from 60° to 45°
• Slightly lower voltage rating of 2.1V versus 2.2V
• Peak wavelength shift from 574nm to 563nm
• Tinted diffused lens versus standard diffused lens

Both parts maintain identical mechanical form factors (3mm T-1 through-hole right-angle), identical color (green), identical configuration (single LED), and identical compliance certifications (ROHS3, REACH Unaffected). Both parts carry Active product status.

The 5510209F substitute is suitable only for applications where reduced brightness, narrower viewing angle, and lower current draw do not compromise functional requirements. Circuit design must accommodate the 2.1V operating voltage and 10mA current specification. The substitute provides higher inventory availability with 2709 pieces in stock.

Frequently Asked Questions (FAQ)

Q: Can the 5510209F directly replace the SSF-LXHM140SUGD without circuit modification?

A: Physical installation is direct due to identical 3mm T-1 through-hole right-angle mounting. However, electrical circuit design verification is required. The substitute operates at 2.1V versus 2.2V and draws 10mA versus 20mA. Current-limiting resistor values must be recalculated based on the substitute's electrical specifications. The reduced luminous intensity (16mcd versus 200mcd) and narrower viewing angle (45° versus 60°) may impact application visibility requirements.

Q: What are the key mechanical compatibility factors?

A: Both parts share identical mechanical specifications: 3mm T-1 lens size, through-hole right-angle mounting, and round domed top lens style. PCB footprint and lead spacing are compatible. No mechanical redesign is required for physical substitution.

Q: How do the optical characteristics differ?

A: Both parts are green diffused LEDs. The SSF-LXHM140SUGD delivers 200mcd at 574nm with a 60° viewing angle. The 5510209F delivers 16mcd at 563nm with a 45° viewing angle and includes lens tinting. The substitute provides significantly reduced brightness and a narrower viewing cone.

Q: Are both parts compliant with current regulations?

A: Yes. Both the SSF-LXHM140SUGD and 5510209F carry ROHS3 compliance and REACH Unaffected designation. Both maintain Active product status from their respective manufacturers.

Q: What is the primary reason to consider the substitute part?

A: The 5510209F substitute should be considered when the primary SSF-LXHM140SUGD experiences supply constraints or extended lead times. The substitute's higher inventory availability (2709 pieces versus 839 pieces) may support accelerated project timelines. Substitution is only appropriate when the reduced electrical and optical performance parameters align with application requirements.

Q: How do the current ratings affect circuit design?

A: The SSF-LXHM140SUGD operates at 20mA while the 5510209F operates at 10mA. This 50% reduction in current consumption affects current-limiting resistor calculations and power supply requirements. Existing circuit designs must be evaluated to confirm that the lower current specification does not compromise LED brightness or visibility in the intended application.