SSL-LX509F3SID Red LED T-1 3/4 Through Hole Equivalent & Substitute Parts

Part Overview

The SSL-LX509F3SID is an active red LED indicator component manufactured by Lumex Opto/Components Inc., designed for through-hole mounting applications. This diffused lens T-1 3/4 (5mm) LED operates at 2V forward voltage with a 700mcd brightness rating and 636nm peak wavelength. The component is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1). Finding equivalent and substitute parts becomes necessary when managing inventory constraints, addressing supply chain disruptions, or optimizing procurement across multiple suppliers while maintaining electrical and mechanical compatibility.

Substiute Parts

SSL-LX509F3SID

Lumex Opto/Components Inc.In Stock: 1215SSL-LX509F3SID Datasheet

Current PartRFQ

SSL-LX5093SID

Lumex Opto/Components Inc.In Stock: 7410SSL-LX5093SID Datasheet

Parametric EquivalentRFQ

XLMDK12D

SunLEDIn Stock: 8619XLMDK12D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSL-LX509F3SID are classified into two categories based on electrical and mechanical parameter alignment:

Parametric Equivalent Classification: Parts that match all critical electrical parameters (forward voltage, test current, brightness rating, viewing angle) and mechanical specifications (lens size, mounting type, package style, height). These parts are direct functional replacements with identical performance characteristics.

Similar Manufacturer Classification: Parts that share the same lens size (5mm T-1 3/4), mounting type (through hole), and general application category but exhibit variations in one or more electrical parameters (forward voltage, millicandela rating, viewing angle, wavelength). These parts require circuit-level evaluation for compatibility.

The substitution logic is based on the following critical parameters:

• Lens size and mounting type (mechanical compatibility)
• Forward voltage and test current (circuit compatibility)
• Millicandela rating and viewing angle (optical performance)
• Wavelength specifications (color consistency)
• RoHS and regulatory compliance status

Parameter Comparison

Engineering Selection Recommendations

SSL-LX5093SID (Parametric Equivalent): This Lumex Opto/Components Inc. part is a direct functional equivalent to the SSL-LX509F3SID. All electrical parameters (2V forward voltage, 20mA test current, 700mcd brightness) and mechanical specifications (5mm T-1 3/4 lens, 8.60mm height, radial through-hole package) are identical. Both parts carry ROHS3 compliance and active product status. The SSL-LX5093SID differs only in packaging format (bulk versus standard), making it suitable for direct substitution in production environments where packaging method does not affect assembly processes.

XLMDK12D (Similar Manufacturer): This SunLED component shares the same mechanical form factor (5mm T-1 3/4 through-hole radial package) and general red LED indication application. However, electrical parameter variations exist: forward voltage is 1.95V (versus 2V), millicandela rating is 647mcd (versus 700mcd), and viewing angle is 30° (versus 60°). Peak wavelength differs at 645nm compared to 636nm, and maximum height is 9.60mm versus 8.60mm. The XLMDK12D maintains ROHS3 compliance and active product status. Selection of this part requires verification that circuit design tolerates the lower forward voltage, reduced brightness output, and narrower viewing angle.

Frequently Asked Questions (FAQ)

Q: Can SSL-LX5093SID replace SSL-LX509F3SID in all applications?

A: Yes. The SSL-LX5093SID is a parametric equivalent with identical electrical and mechanical specifications. The only difference is packaging format (bulk). Both parts are manufactured by Lumex Opto/Components Inc., carry ROHS3 compliance, and maintain active product status. Direct substitution is supported without circuit modification.

Q: What are the key differences between SSL-LX509F3SID and XLMDK12D?

A: The XLMDK12D differs in four critical parameters: forward voltage (1.95V vs. 2V), millicandela rating (647mcd vs. 700mcd), viewing angle (30° vs. 60°), and maximum height (9.60mm vs. 8.60mm). These differences require circuit-level evaluation. The narrower 30° viewing angle may affect optical performance in applications requiring wider light distribution. The lower forward voltage may impact current-limiting resistor calculations.

Q: Are all substitute parts RoHS compliant?

A: Yes. Both SSL-LX5093SID and XLMDK12D carry ROHS3 compliance status, matching the main part SSL-LX509F3SID. All three components are suitable for applications requiring RoHS certification.

Q: Does the height difference between SSL-LX509F3SID (8.60mm) and XLMDK12D (9.60mm) affect PCB design?

A: The 1mm height difference may impact PCB layout if clearance constraints exist. Verify mechanical fit within the intended enclosure or assembly before selecting XLMDK12D as a substitute. The SSL-LX5093SID maintains identical 8.60mm height, eliminating this consideration.

Q: What is the significance of the 636nm versus 645nm wavelength difference?

A: Both wavelengths fall within the red LED spectrum and are visually indistinguishable to the human eye. The difference reflects manufacturing variation between suppliers. For applications requiring specific wavelength matching (such as optical sensing or color-critical indication), confirm that the receiving system accepts the 645nm wavelength of XLMDK12D.

Q: Can XLMDK12D be used in high-brightness applications?

A: The XLMDK12D produces 647mcd compared to the main part's 700mcd. This 7.5% reduction in brightness may be significant in applications requiring maximum light output. Evaluate circuit design and application requirements before substitution.

Q: What inventory levels are available for each part?

A: SSL-LX509F3SID: 1110 pcs; SSL-LX5093SID: 7305 pcs; XLMDK12D: 8537 pcs. Higher inventory availability exists for both substitute parts.