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SSL-LX306F4ID Equivalent & Substitute Parts Reference
Part Overview
The SSL-LX306F4ID is an active red diffused LED indicator manufactured by Lumex Opto/Components Inc., designed for through-hole mounting applications. This T-1 form factor component operates at 2V forward voltage with a 40mcd brightness rating and 635nm peak wavelength. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1).
Substitute parts are identified to address inventory availability, packaging format variations, and parametric equivalence within the red LED indicator category. Alternative sources and configurations are documented to support component selection and procurement flexibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Color | Red |
| Lens Transparency | Diffused |
| Lens Size | 3mm, T-1 |
| Lens Style | Round with Domed Top |
| Voltage - Forward (Vf) (Typ) | 2V |
| Current - Test | 20mA |
| Millicandela Rating | 40mcd |
| Viewing Angle | 60° |
| Mounting Type | Through Hole |
| Wavelength - Peak | 635nm |
| Package / Case | Radial |
| Height (Max) | 6.00mm |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts are classified into two categories based on substitution type:
Direct Manufacturer Substitutes (Lumex Opto/Components Inc.): SSL-LX3054ID and SSL-LX3054LID are direct alternatives from the same manufacturer. These parts share identical electrical specifications (2V forward voltage, 20mA test current, 40mcd brightness, 60° viewing angle, 635nm peak wavelength) and mechanical form factor (3mm T-1 diffused red LED, through-hole radial mounting). The primary difference is packaging format (Bulk) and minor height variation (5.25mm vs. 6.00mm). Both maintain ROHS3 compliance and MSL 1 rating.
Parametric Equivalents (Cross-Manufacturer): HLMP-K101 (Broadcom Limited) and HLMPK101 (onsemi) are parametric equivalents that satisfy the core functional requirements of red diffused T-1 LED indicators. These parts operate at 1.8V forward voltage (0.2V lower than the main part), maintain 20mA test current, deliver 45mcd brightness (5mcd higher), and preserve 60° viewing angle and through-hole radial mounting. Wavelength specifications differ slightly (637nm dominant/645nm peak for HLMP-K101; 660nm peak for HLMPK101). Height dimensions vary (6.35mm and 6.30mm respectively). Both are ROHS3 compliant with MSL 1 rating. HLMPK101 carries Obsolete product status.
Substitution logic is based strictly on matching color, lens transparency, lens size, mounting type, and electrical operating parameters within acceptable tolerance ranges for LED indicator applications.
Parameter Comparison
| Parameter | SSL-LX306F4ID | SSL-LX3054ID | SSL-LX3054LID | HLMP-K101 | HLMPK101 |
|---|---|---|---|---|---|
| Manufacturer | Lumex Opto/Components Inc. | Lumex Opto/Components Inc. | Lumex Opto/Components Inc. | Broadcom Limited | onsemi |
| Color | Red | Red | Red | Red | Red |
| Lens Transparency | Diffused | Diffused | Diffused | Diffused | Diffused |
| Lens Size | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 |
| Lens Style | Round with Domed Top | Round with Domed Top | Round with Domed Top | Round with Domed Top | Round with Domed Top |
| Voltage - Forward (Vf) (Typ) | 2V | 2V | 2V | 1.8V | 1.8V |
| Current - Test | 20mA | 20mA | 20mA | 20mA | 20mA |
| Millicandela Rating | 40mcd | 40mcd | 40mcd | 45mcd | 45mcd |
| Viewing Angle | 60° | 60° | 60° | 60° | 60° |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Wavelength - Peak | 635nm | 635nm | 635nm | 645nm | 660nm |
| Package / Case | Radial | Radial | Radial | Radial | Radial |
| Height (Max) | 6.00mm | 5.25mm | 5.25mm | 6.35mm | 6.30mm |
| Product Status | Active | Active | Active | Active | Obsolete |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | Not Specified |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
For Direct Substitution (Same Manufacturer): SSL-LX3054ID and SSL-LX3054LID are suitable direct replacements for SSL-LX306F4ID. Both parts maintain identical electrical specifications and mechanical compatibility. Selection between these options depends on packaging requirements and inventory availability. SSL-LX3054ID and SSL-LX3054LID offer higher inventory levels (28,630 and 11,007 units respectively) compared to the main part (1,091 units). Height variation (5.25mm vs. 6.00mm) must be evaluated against PCB layout constraints.
For Cross-Manufacturer Substitution: HLMP-K101 (Broadcom Limited) is an active product suitable for applications where forward voltage tolerance of 0.2V lower (1.8V vs. 2V) is acceptable. This part delivers 5mcd higher brightness (45mcd vs. 40mcd) and maintains all other critical parameters. Wavelength peak differs at 645nm versus 635nm, which may affect visual appearance in specific applications. HLMP-K101 provides the highest inventory availability (37,707 units).
HLMPK101 (onsemi) carries Obsolete product status and should not be selected for new designs or long-term production applications. This part is documented for reference only in legacy system maintenance scenarios.
Compliance Considerations: All active substitute parts (SSL-LX3054ID, SSL-LX3054LID, HLMP-K101) maintain ROHS3 compliance and MSL 1 rating, matching the regulatory status of the main part. HLMPK101 does not specify RoHS compliance status and should be avoided in applications requiring documented regulatory compliance.
Frequently Asked Questions (FAQ)
Q: Can SSL-LX3054ID and SSL-LX3054LID be used interchangeably with SSL-LX306F4ID?
A: Yes. Both parts are direct manufacturer substitutes with identical electrical specifications (2V forward voltage, 20mA test current, 40mcd brightness, 60° viewing angle, 635nm peak wavelength) and mechanical form factor (3mm T-1 diffused red LED, through-hole radial mounting). The primary difference is packaging format (Bulk) and height dimension (5.25mm vs. 6.00mm). Verify PCB layout compatibility before substitution.
Q: What are the key differences between Lumex and Broadcom LED indicators?
A: Lumex SSL-LX3054 series operates at 2V forward voltage, while Broadcom HLMP-K101 operates at 1.8V. Both deliver comparable brightness (40mcd vs. 45mcd) and maintain identical viewing angle (60°) and mounting type (through-hole radial). Wavelength peak differs (635nm vs. 645nm). The 0.2V voltage difference may require circuit design adjustment but does not prevent functional substitution in most indicator applications.
Q: Is HLMPK101 suitable for new product designs?
A: No. HLMPK101 carries Obsolete product status and should not be selected for new designs. This part is documented for reference in legacy system maintenance only. Use HLMP-K101 (Broadcom Limited, Active status) or Lumex SSL-LX3054 series for new applications.
Q: How does height variation affect component selection?
A: Height differences (5.25mm for SSL-LX3054 series, 6.00mm for SSL-LX306F4ID, 6.35mm for HLMP-K101, 6.30mm for HLMPK101) impact PCB layout and enclosure clearance. Verify mechanical fit within the target application before substitution. Shorter components (SSL-LX3054 series) may require PCB layout adjustment if the original design assumes 6.00mm height.
Q: Are all substitute parts ROHS3 compliant?
A: SSL-LX3054ID, SSL-LX3054LID, and HLMP-K101 are confirmed ROHS3 compliant. HLMPK101 does not specify RoHS compliance status. For applications requiring documented regulatory compliance, select from the three confirmed ROHS3 parts.
Q: What inventory levels are available for each substitute?
A: SSL-LX306F4ID (main part): 1,091 units. SSL-LX3054ID: 28,630 units. SSL-LX3054LID: 11,007 units. HLMP-K101: 37,707 units. HLMPK101: 1,158 units. Higher inventory availability in substitute parts supports procurement flexibility and supply chain continuity.
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