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LED Circuit Board Indicator 5520277F Equivalent & Substitute Parts
Part Overview
The Dialight 5520277F is an active LED Circuit Board Indicator featuring a dual-level orange configuration with a 5mm diffused, tinted lens and right-angle through-hole mounting. This component is designed for applications requiring visual status indication on circuit boards with specific optical and electrical characteristics. Finding equivalent substitute parts becomes necessary when managing inventory across production runs, addressing supply chain constraints, or accommodating design revisions that permit alternative form factors while maintaining functional compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 5520277F |
| Manufacturer | Dialight |
| Series | 552 |
| Product Status | Active |
| Color | Orange (x 2) |
| Configuration | 2 High |
| Wavelength - Peak | 600nm |
| Current Rating | 10mA |
| Voltage Rating | 1.9V |
| Millicandela Rating | 7mcd |
| Viewing Angle | 60° |
| Lens Type | Diffused, Tinted |
| Lens Size | 5mm, T-1 3/4 |
| Mounting Type | Through Hole, Right Angle |
| RoHS Status | ROHS3 Compliant |
| REACH Status | REACH Unaffected |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 5520277F is determined by strict alignment across the following critical parameters:
Mandatory Matching Parameters:
- Color: Orange (x 2)
- Configuration: 2 High
- Wavelength - Peak: 600nm
- Current Rating: 10mA
- Millicandela Rating: 7mcd
- Viewing Angle: 60°
- Lens Type: Diffused, Tinted
- Mounting Type: Through Hole, Right Angle
- RoHS Status: ROHS3 Compliant
- REACH Status: REACH Unaffected
Allowable Variation Parameters:
- Voltage Rating: May vary within component design specifications
- Lens Size: May vary (5mm vs. 3mm form factors permitted when mechanical constraints allow)
The substitute part 5530177300F meets all mandatory matching criteria while introducing a controlled variation in lens size (3mm vs. 5mm) and voltage rating (2.2V vs. 1.9V). This substitution is valid when circuit board layout and voltage supply architecture accommodate these differences.
Parameter Comparison
| Parameter | 5520277F (Main Part) | 5530177300F (Substitute) |
|---|---|---|
| Manufacturer | Dialight | Dialight |
| Series | 552 | 553 |
| Product Status | Active | Active |
| Color | Orange (x 2) | Orange (x 2) |
| Configuration | 2 High | 2 High |
| Wavelength - Peak | 600nm | 600nm |
| Current Rating | 10mA | 10mA |
| Voltage Rating | 1.9V | 2.2V |
| Millicandela Rating | 7mcd | 7mcd |
| Viewing Angle | 60° | 60° |
| Lens Type | Diffused, Tinted | Diffused, Tinted |
| Lens Size | 5mm, T-1 3/4 | 3mm |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Both the 5520277F and 5530177300F maintain Active product status with full ROHS3 compliance and REACH unaffected designation, confirming regulatory alignment for current and future production environments. Selection between these parts depends on circuit board layout constraints and power supply voltage availability:
- 5520277F (5mm lens): Select when board layout accommodates the larger T-1 3/4 form factor and 1.9V supply voltage is available.
- 5530177300F (3mm lens): Select when space constraints require a smaller lens diameter and 2.2V supply voltage is available.
Both components deliver identical optical performance (7mcd at 60° viewing angle, 600nm peak wavelength) and electrical characteristics (10mA current rating), ensuring functional equivalence within their respective mechanical and voltage constraints.
Frequently Asked Questions (FAQ)
Q: Can the 5530177300F replace the 5520277F in an existing design?
A: Substitution is valid only if the circuit board layout accommodates the 3mm lens size and the power supply provides 2.2V instead of 1.9V. The optical output and current characteristics are identical.
Q: What is the primary difference between these two parts?
A: The main differences are lens size (5mm vs. 3mm) and forward voltage rating (1.9V vs. 2.2V). All other electrical and optical parameters remain constant.
Q: Are both parts compliant with current environmental regulations?
A: Yes. Both the 5520277F and 5530177300F are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.
Q: Does the smaller 3mm lens affect brightness or viewing angle?
A: No. Both parts deliver 7mcd brightness and 60° viewing angle. The lens size change does not alter optical performance specifications.
Q: What is the moisture sensitivity level for both parts?
A: Both components carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
Q: Can I use either part interchangeably in production?
A: Interchangeability requires verification that your circuit board design and power supply specifications accommodate the lens size and voltage differences. Once confirmed, either part may be used.
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