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SLM-220 Equivalent & Substitute Parts
Part Overview
The SLM-220 is an LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with T1 and T1 3/4 LED form factors. This component is constructed from black nylon material with a length of 0.220" (5.59mm) and is supplied in bag packaging. The part maintains Active product status and is RoHS3 compliant, making it suitable for current electronic assembly requirements. Substitute parts are identified when inventory constraints, lead time considerations, or supply chain disruptions necessitate alternative sourcing while maintaining functional and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| LED Form Factor | T1, T1 3/4 | Determines mechanical fit and optical alignment in circuit board applications |
| Material | Nylon | Defines thermal and chemical compatibility with assembly environment |
| Color | Black | Ensures visual consistency and light-blocking properties in assembly |
| Length | 0.220" (5.59mm) | Critical for vertical standoff height and PCB clearance |
| RoHS Compliance | ROHS3 Compliant | Regulatory requirement for electronic component sourcing |
| Moisture Sensitivity Level | 1 (Unlimited) | Indicates storage and handling requirements |
Substitute Part Grouping Explanation
Substitute parts for the SLM-220 are identified based on strict equivalence of the following parameters:
- LED Form Factor: Both main and substitute parts support T1 and T1 3/4 LED configurations
- Material Composition: Both utilize nylon construction for mechanical and thermal properties
- Color: Both are black, ensuring visual and functional consistency
- Length Tolerance: Substitute part length of 0.216" (5.50mm) falls within acceptable mechanical tolerance range relative to the main part specification of 0.220" (5.59mm), representing a variance of 0.004" (0.09mm)
- Regulatory Compliance: Both parts maintain RoHS3 compliance status
The substitute part 705820055 from Würth Elektronik meets all critical substitution criteria and is classified as a parametric equivalent based on these aligned specifications.
Parameter Comparison
| Parameter | SLM-220 (Bivar Inc.) | 705820055 (Würth Elektronik) | Compatibility Status |
|---|---|---|---|
| LED Form Factor | T1, T1 3/4 | T1, T1 3/4 | Equivalent |
| Material | Nylon | Nylon 66 UL94 V-2 | Equivalent |
| Color | Black | Black | Equivalent |
| Length | 0.220" (5.59mm) | 0.216" (5.50mm) | Within Tolerance |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| Packaging | Bag | Bag | Equivalent |
| Product Status | Active | Active | Equivalent |
Engineering Selection Recommendations
Selection between SLM-220 and substitute part 705820055 is determined by availability and supply chain requirements. Both parts maintain Active product status and full RoHS3 compliance, confirming regulatory acceptability for current applications. The Würth Elektronik part 705820055 specifies Nylon 66 UL94 V-2 material composition, which provides documented flame-retardant properties suitable for applications requiring enhanced safety certifications. The length differential of 0.004" (0.09mm) is within standard mechanical tolerances for LED standoff applications and does not compromise functional performance. Component selection should prioritize inventory availability and lead time requirements while maintaining compliance with assembly specifications.
Frequently Asked Questions (FAQ)
Q: Can SLM-220 and 705820055 be used interchangeably in the same circuit board assembly?
A: Yes. Both parts support identical T1 and T1 3/4 LED form factors, utilize nylon material construction, feature black coloring, and maintain RoHS3 compliance. The length variance of 0.004" (0.09mm) is within acceptable mechanical tolerance for vertical standoff applications.
Q: What is the significance of the length difference between these parts?
A: The SLM-220 specifies 0.220" (5.59mm) while the 705820055 specifies 0.216" (5.50mm). This 0.004" (0.09mm) difference represents a 1.8% variance and is within standard mechanical tolerances for LED standoff components. Both dimensions accommodate T1 and T1 3/4 LED form factors without functional degradation.
Q: Are there any compliance or certification differences between these parts?
A: Both parts are RoHS3 compliant and suitable for current regulatory requirements. The Würth Elektronik part 705820055 specifies UL94 V-2 flame-retardant nylon material, providing additional documented safety certification for applications requiring enhanced fire-resistance properties.
Q: Does packaging format differ between these substitute parts?
A: No. Both SLM-220 and 705820055 are supplied in bag packaging, ensuring consistent handling and storage procedures across supply sources.
Q: What factors should determine which substitute part to select?
A: Selection should be based on current inventory availability, supplier lead times, and application-specific requirements for flame-retardant material properties. Both parts satisfy identical functional and mechanical specifications for standard LED standoff applications.
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