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H201CYD LED Circuit Board Indicator Equivalent & Substitute Parts
Part Overview
The H201CYD is a dual-level yellow LED circuit board indicator manufactured by Bivar Inc., designed for applications requiring visual status indication on printed circuit boards. This component features a 3mm diffused lens with domed top, rated for 2V operation at 20mA, and delivers 20 millicandela brightness with a 40° viewing angle. The part is Active in product status and fully RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.
Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained across different manufacturers while accommodating standard circuit board design variations.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Basis |
|---|---|---|
| Configuration | 2 High (Dual-Level) | Electrical and mechanical form factor |
| Color | Yellow (x 2) | Optical output specification |
| Lens Size | 3mm, T-1 | Physical package dimension |
| Lens Type | Diffused | Light distribution characteristic |
| Lens Style | Round with Domed Top | Mechanical form factor |
| Current Rating | 20mA | Electrical operating specification |
| Voltage Rating | 2V nominal | Electrical operating specification |
| RoHS Status | ROHS3 Compliant | Regulatory compliance requirement |
| MSL Rating | 1 (Unlimited) | Moisture sensitivity classification |
Substitute Part Grouping Explanation
Substitution eligibility for the H201CYD is determined by the following critical parameters:
Mandatory Matching Parameters:
- Configuration: 2 High (dual-level LED assembly)
- Color: Yellow (x 2)
- Lens Size: 3mm, T-1 physical package
- Lens Style: Round with Domed Top
- Current Rating: 20mA nominal operation
- Lens Type: Diffused optical characteristic
- RoHS3 Compliance: Required for regulatory equivalence
- MSL Rating: 1 (Unlimited) or equivalent
Allowable Variation Parameters:
- Voltage Rating: ±0.1V tolerance acceptable (2V to 2.1V range)
- Wavelength - Peak: ±5nm variation acceptable (590nm ±5nm)
- Millicandela Rating: Higher brightness acceptable (20mcd minimum)
- Viewing Angle: Wider angle acceptable (40° minimum)
- Mounting Type: Through Hole variations permitted for circuit board integration
- Manufacturer: Different qualified manufacturers acceptable
The SSF-LXH2103YYD/4 from Lumex Opto/Components Inc. qualifies as a substitute based on matching all mandatory parameters while providing enhanced performance in brightness (30mcd vs. 20mcd) and viewing angle (60° vs. 40°).
Parameter Comparison
| Parameter | H201CYD (Bivar Inc.) | SSF-LXH2103YYD/4 (Lumex Opto/Components Inc.) | Compatibility Status |
|---|---|---|---|
| Configuration | 2 High | 2 High | Equivalent |
| Color | Yellow (x 2) | Yellow (x 2) | Equivalent |
| Lens Size | 3mm, T-1 | 3mm, T-1 | Equivalent |
| Lens Type | Diffused | Diffused, Tinted | Compatible |
| Lens Style | Round with Domed Top | Round with Domed Top | Equivalent |
| Current Rating | 20mA | 20mA | Equivalent |
| Voltage Rating | 2V | 2.1V | Compatible (0.1V variation) |
| Wavelength - Peak | 590nm | 585nm | Compatible (5nm variation) |
| Millicandela Rating | 20mcd | 30mcd | Enhanced (higher brightness) |
| Viewing Angle | 40° | 60° | Enhanced (wider angle) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | Equivalent |
| Product Status | Active | Active | Equivalent |
Engineering Selection Recommendations
H201CYD Selection Criteria:
- Primary choice when exact 2V specification and 40° viewing angle are circuit design requirements
- Preferred for applications with established Bivar Inc. supply chain qualification
- Suitable for standard brightness indicator applications (20mcd output)
- Active product status ensures continued availability and support
SSF-LXH2103YYD/4 Selection Criteria:
- Acceptable substitute when circuit design tolerates 2.1V operation (0.1V above nominal)
- Preferred when enhanced brightness (30mcd) improves visibility in high-ambient-light environments
- Recommended when wider viewing angle (60°) accommodates broader observer positions
- Active product status with higher inventory availability (3650 Pcs vs. 995 Pcs) supports supply continuity
- Tinted diffuser lens provides additional light distribution control
Regulatory & Compliance Equivalence: Both parts maintain ROHS3 compliance, MSL 1 (Unlimited) rating, and EAR99 export classification. No additional compliance verification is required for direct substitution in existing designs.
Frequently Asked Questions (FAQ)
Q: Can the SSF-LXH2103YYD/4 directly replace the H201CYD in existing circuit board designs?
A: Yes, with voltage circuit tolerance verification. The SSF-LXH2103YYD/4 operates at 2.1V nominal versus the H201CYD's 2V specification. Circuit designs with voltage regulation or current-limiting resistors rated for 2.1V operation accommodate this substitute without modification. Verify that the circuit's voltage source and current-limiting components support the 0.1V variation.
Q: What is the impact of the 10mcd brightness difference between these parts?
A: The SSF-LXH2103YYD/4 delivers 30mcd versus the H201CYD's 20mcd output. This 50% brightness increase improves visibility in high-ambient-light conditions and extends effective viewing distance. For applications where the original 20mcd specification is a design minimum, this enhanced brightness is compatible and beneficial. No circuit modification is required.
Q: Are the lens optical characteristics interchangeable?
A: Both parts feature diffused lenses with round domed-top geometry in 3mm T-1 packages. The SSF-LXH2103YYD/4 includes a tinted diffuser, which provides enhanced color saturation and light distribution control compared to the standard diffused lens of the H201CYD. This difference is optical only and does not affect electrical compatibility or circuit board integration.
Q: What is the significance of the 20° viewing angle difference?
A: The H201CYD provides a 40° viewing angle, while the SSF-LXH2103YYD/4 offers 60°. The wider 60° angle accommodates applications requiring visibility from broader observer positions or mounting angles. For designs where the original 40° specification is a constraint, the SSF-LXH2103YYD/4's wider angle is compatible and provides enhanced flexibility.
Q: Are there packaging or mounting differences between these parts?
A: The H201CYD is supplied in Tray packaging, while the SSF-LXH2103YYD/4 is supplied in Bulk packaging. Both are Through Hole components with Right Angle mounting configuration suitable for standard circuit board assembly. Packaging format does not affect electrical or mechanical compatibility; it reflects supply chain and inventory management differences only.
Q: Do both parts meet the same regulatory and compliance standards?
A: Yes. Both the H201CYD and SSF-LXH2103YYD/4 are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity ratings, and are classified as EAR99 for export purposes. No additional compliance verification or documentation is required for direct substitution.
Q: What wavelength variation is acceptable between these parts?
A: The H201CYD operates at 590nm peak wavelength, while the SSF-LXH2103YYD/4 operates at 585nm. This 5nm difference is within standard yellow LED manufacturing tolerance and produces no perceptible color difference to human observation. Both parts deliver equivalent yellow optical output for indicator applications.
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