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SSF-EX2573GD-TR Equivalent & Substitute Parts
Part Overview
The SSF-EX2573GD-TR is a green diffused LED indicator manufactured by Lumex Opto/Components Inc., designed for through-hole mounting applications requiring discrete 2.2V radial configuration. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this LED indicator.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Lumex Opto/Components Inc. |
| Color | Green |
| Lens Transparency | Diffused |
| Lens Style | Rectangle with Flat Top |
| Lens Size | 5.00mm x 2.00mm |
| Voltage - Forward (Vf) Typical | 2.2V |
| Current - Test | 20mA |
| Wavelength - Peak | 565nm |
| Mounting Type | Through Hole |
| Package / Case | Radial |
| Height (Max) | 7.20mm |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution eligibility for the SSF-EX2573GD-TR is determined by strict alignment of the following critical parameters:
Mandatory Matching Parameters:
- Color: Green
- Lens Transparency: Diffused
- Lens Style: Rectangle with Flat Top
- Lens Size: 5.00mm x 2.00mm
- Voltage - Forward (Vf) Typical: 2.2V
- Current - Test: 20mA
- Wavelength - Peak: 565nm
- Mounting Type: Through Hole
- Package / Case: Radial
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
- REACH Status: REACH Unaffected
The SSL-LX2573GD qualifies as a substitute part based on conformance to all mandatory matching parameters. Variations in product status (active versus obsolete) and minor dimensional differences within acceptable tolerances do not preclude substitution when electrical and optical characteristics remain equivalent.
Parameter Comparison
| Parameter | SSF-EX2573GD-TR (Main Part) | SSL-LX2573GD (Substitute) |
|---|---|---|
| Manufacturer | Lumex Opto/Components Inc. | Lumex Opto/Components Inc. |
| Product Status | Obsolete | Active |
| Color | Green | Green |
| Lens Transparency | Diffused | Diffused |
| Lens Style | Rectangle with Flat Top | Rectangle with Flat Top |
| Lens Size | 5.00mm x 2.00mm | 5.00mm x 2.00mm |
| Voltage - Forward (Vf) Typical | 2.2V | 2.2V |
| Current - Test | 20mA | 20mA |
| Viewing Angle | 80° | 110° |
| Wavelength - Peak | 565nm | 565nm |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Radial | Radial |
| Height (Max) | 7.20mm | 7.00mm |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The SSL-LX2573GD is a direct substitute for the obsolete SSF-EX2573GD-TR. Both components are manufactured by Lumex Opto/Components Inc. and maintain identical electrical and optical specifications across all critical parameters. The substitute part carries active product status, ensuring ongoing availability and supply chain continuity.
Both parts satisfy ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for current manufacturing standards. The SSL-LX2573GD provides equivalent performance with enhanced viewing angle characteristics (110° versus 80°), which represents an operational advantage in applications requiring broader light distribution. The marginal height difference (7.00mm versus 7.20mm) falls within standard mechanical tolerances and does not impact through-hole mounting compatibility.
Selection of the SSL-LX2573GD eliminates obsolescence risk while maintaining full functional equivalence with the original SSF-EX2573GD-TR specification.
Frequently Asked Questions (FAQ)
Q: Can SSL-LX2573GD be used as a direct replacement for SSF-EX2573GD-TR in existing designs?
A: Yes. Both components share identical forward voltage (2.2V), test current (20mA), peak wavelength (565nm), lens dimensions (5.00mm x 2.00mm), and mounting configuration (through-hole radial). Electrical and optical performance are equivalent.
Q: What is the significance of the viewing angle difference between the two parts?
A: The SSL-LX2573GD provides a 110° viewing angle compared to the SSF-EX2573GD-TR's 80° viewing angle. This represents a broader light distribution pattern. In applications where the original 80° angle was specified, the wider 110° angle of the substitute will increase light visibility across a wider spatial range. Circuit design and optical requirements should be evaluated to confirm this characteristic is acceptable.
Q: Are there any compliance or regulatory differences between these parts?
A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL 1 - Unlimited). Regulatory status is equivalent.
Q: Does the height difference (7.20mm versus 7.00mm) affect mechanical compatibility?
A: The 0.20mm height difference is within standard mechanical tolerances for through-hole mounted components. This variation does not impact PCB layout, mounting hole alignment, or standard component placement procedures.
Q: Why is the main part listed as obsolete?
A: Obsolete status indicates the SSF-EX2573GD-TR is no longer in active production. The SSL-LX2573GD maintains active product status, ensuring continued availability and support from the manufacturer.
Q: Are there any packaging differences between these parts?
A: The SSF-EX2573GD-TR is supplied in standard packaging, while the SSL-LX2573GD is supplied in bulk packaging. Both use identical component specifications and radial package configuration. Packaging format does not affect component performance or electrical characteristics.
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