LED COB LUXEON Cool White Square 5700K LHC1-5770-1211

Part Overview

The LHC1-5770-1211 is a Chip On Board (COB) LED module from Lumileds' LUXEON CoB series, engineered for cool white lighting applications at 5700K color temperature. This component delivers 5600 lumens at typical operating conditions with a square configuration measuring 28mm × 28mm. The product is currently classified as obsolete, making identification of compatible substitute components essential for ongoing design support and procurement planning.

Substiute Parts

LHC1-5770-1211

LumiledsIn Stock: 1143LHC1-5770-1211 Datasheet

Current PartRFQ

L2C5-57701211E1900

LumiledsIn Stock: 951L2C5-57701211E1900 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LHC1-5770-1211 is determined by strict alignment across the following critical parameters:

Mechanical Compatibility: Configuration (Square), physical dimensions (28.00mm L × 28.00mm W, 1.50mm height), and Light Emitting Surface diameter (18.50mm) must remain identical to ensure mechanical fit within existing designs.

Optical Specifications: Color (White, Cool), CCT (5700K), CRI (70), and Viewing Angle (115°) define the lighting performance envelope and must be preserved.

Electrical Parameters: Forward Voltage (Vf) and maximum current rating (2.4A) must fall within acceptable design tolerances to maintain circuit compatibility.

Regulatory Compliance: RoHS3 compliance, MSL rating, and REACH status must be maintained or exceed the original specification.

Product Type: Both components must be Chip On Board (COB) LED modules from Lumileds to ensure functional equivalence.

The substitute part L2C5-57701211E1900 meets all these criteria while offering improved performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The L2C5-57701211E1900 is a direct substitute for the LHC1-5770-1211 based on the following engineering criteria:

Mechanical Fit: All physical dimensions and mounting parameters are identical, ensuring drop-in compatibility within existing mechanical assemblies.

Electrical Compatibility: Forward voltage tolerance (34.8V vs. 35.5V) represents a 0.7V reduction, which is within acceptable design margins for standard LED driver circuits. Maximum current rating remains unchanged at 2.4A.

Optical Performance: Color temperature, CRI, and viewing angle specifications are preserved. The substitute delivers enhanced luminous flux (6536 lm vs. 5600 lm) and improved efficiency (157 lm/W vs. 131 lm/W), representing a 16.8% increase in light output and a 19.8% improvement in power efficiency.

Regulatory Status: Both components maintain ROHS3 compliance, MSL Level 1, and REACH Unaffected status. The substitute is classified as Active product status, ensuring long-term availability and supply chain continuity.

Series Alignment: The substitute belongs to the LUXEON CoB Core Range Gen 3 series, representing a generational advancement within the same product family while maintaining full backward compatibility.

Frequently Asked Questions (FAQ)

Q: Can the L2C5-57701211E1900 be used as a direct replacement for the LHC1-5770-1211?

A: Yes. The substitute meets all mechanical, optical, and electrical compatibility requirements. Identical physical dimensions, configuration, color temperature, and maximum current rating ensure direct substitution without circuit redesign.

Q: What is the significance of the forward voltage difference (35.5V vs. 34.8V)?

A: The 0.7V reduction in the substitute represents improved efficiency in the newer generation. Standard LED driver circuits accommodate this variation within normal tolerance bands. No circuit modification is required.

Q: Does the increased luminous flux (6536 lm vs. 5600 lm) affect compatibility?

A: No. Higher light output is a performance enhancement that does not compromise compatibility. Existing optical designs will deliver increased illumination without modification.

Q: Are there any packaging or handling differences?

A: Both components are supplied in Tube packaging with identical Moisture Sensitivity Level (MSL 1 - Unlimited). Handling and storage procedures remain unchanged.

Q: Why is the LHC1-5770-1211 classified as obsolete?

A: The LHC1-5770-1211 has been superseded by the L2C5-57701211E1900 within Lumileds' product portfolio. The newer generation offers improved efficiency and performance while maintaining full backward compatibility.

Q: Are regulatory certifications maintained in the substitute?

A: Yes. The L2C5-57701211E1900 maintains ROHS3 compliance, MSL Level 1 rating, and REACH Unaffected status, meeting all regulatory requirements of the original component.

Q: What is the 3-Step MacAdam Ellipse specification on the substitute?

A: This specification indicates tighter color temperature tolerance and consistency across production batches, representing an improvement in color uniformity compared to the original component.