SSF-LXH475GIIID LED Circuit Board Indicator Equivalent & Substitute Parts

Part Overview

The SSF-LXH475GIIID is a 4-high LED circuit board indicator manufactured by Lumex Opto/Components Inc., featuring one green LED and three red LEDs in a 3mm T-1 through-hole right-angle configuration. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing production support, maintenance, and design continuity. The part operates with green LEDs at 2.2V/25mA and red LEDs at 2.0V/30mA, delivering 30mcd brightness in a diffused lens format suitable for panel-mount applications.

Substiute Parts

SSF-LXH475GIIID

Lumex Opto/Components Inc.In Stock: 1246SSF-LXH475GIIID Datasheet

Current PartRFQ

5680102111F

DialightIn Stock: 13005680102111F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSF-LXH475GIIID are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Configuration Match: The substitute must maintain the 4-high LED arrangement with identical color distribution (green x1, red x3).

Physical Compatibility: Lens size (3mm T-1), lens style (round with domed top), and mounting type (through-hole right-angle) must be identical to ensure direct board-level replacement without mechanical redesign.

Optical Specifications: Peak wavelengths (565nm green, 635nm red) and viewing angle (60°) must match to preserve visual indication characteristics.

Electrical Compatibility: Voltage and current ratings must fall within acceptable operating ranges. Substitute parts may have slightly different voltage thresholds or current specifications provided they remain within standard LED operating tolerances and do not exceed the original design envelope.

Compliance Requirements: RoHS3 compliance and MSL rating of 1 (Unlimited) are mandatory for production continuity.

The Dialight 5680102111F meets all substitution criteria and is classified as an active product, providing long-term availability for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The Dialight 5680102111F is a direct substitute for the obsolete SSF-LXH475GIIID based on matching mechanical, optical, and electrical parameters. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Compliance Alignment: Both parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), satisfying regulatory and manufacturing requirements without modification to existing assembly processes.

Electrical Considerations: The substitute operates at 2.1V green (versus 2.2V original) and 30mA green (versus 25mA original). These variations remain within standard LED operating tolerances and do not introduce incompatibility with existing circuit designs. Red LED specifications (2.0V, 30mA) are identical.

Brightness Differential: The substitute exhibits lower millicandela ratings (12.6mcd green, 10mcd red) compared to the original (30mcd). This reduction in brightness intensity should be evaluated against specific application requirements for visual indication adequacy.

Physical Compatibility: Identical lens size, style, mounting type, and wavelength specifications ensure direct board-level replacement without mechanical or optical redesign.

Frequently Asked Questions (FAQ)

Q: Can the Dialight 5680102111F be used as a direct replacement without circuit modification?

A: Yes. The substitute part maintains identical mechanical mounting, optical wavelengths, and compatible electrical specifications. Existing circuit designs require no modification for substitution.

Q: What is the significance of the brightness difference between the original and substitute?

A: The original SSF-LXH475GIIID delivers 30mcd brightness, while the Dialight 5680102111F provides 12.6mcd (green) and 10mcd (red). This reduction should be assessed against application-specific visibility requirements. If the original design included brightness margin, the substitute remains suitable. If brightness was critical to specification, alternative parts with higher millicandela ratings should be evaluated.

Q: Are there packaging differences between these parts?

A: The original part packaging is not specified in available data. The substitute is supplied in bulk packaging. Confirm packaging requirements for your procurement and assembly processes.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the SSF-LXH475GIIID and 5680102111F are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: Why is the original part classified as obsolete?

A: The SSF-LXH475GIIID is no longer in active production by Lumex Opto/Components Inc. The Dialight 5680102111F provides equivalent functionality with active production status, ensuring ongoing availability for new designs and replacement applications.

Q: What is the difference in current ratings for the green LED?

A: The original operates at 25mA green, while the substitute operates at 30mA green. This 5mA increase falls within standard LED operating tolerances and does not create incompatibility with properly designed current-limiting circuits.