LXH8-FW35-367 Equivalent & Substitute Parts

Part Overview

The LXH8-FW35-367 is a LUXEON T series warm white LED (3500K) designed for surface mount applications requiring high color rendering and consistent light output. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production runs and legacy system support.

Substiute Parts

LXH8-FW35-367

LumiledsIn Stock: 1181LXH8-FW35-367 Datasheet

Current PartRFQ

L1T2-3580300002500

LumiledsIn Stock: 844L1T2-3580300002500 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LXH8-FW35-367 is determined by the following critical parameters:

• Color temperature and MacAdam ellipse specification (3500K 3-Step)
• Forward voltage (2.8V nominal)
• Test current (700mA)
• Color rendering index (CRI 80)
• Viewing angle (120°)
• Package configuration (2-SMD, No Lead Exposed Pad)
• Physical dimensions (3.70mm x 3.70mm footprint, 2.12mm max height)
• Thermal characteristics (3°C/W)
• Compliance certifications (ROHS3, REACH Unaffected)

The L1T2-3580300002500 qualifies as a direct substitute based on matching all critical electrical and mechanical parameters while offering improved performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The L1T2-3580300002500 is the manufacturer-recommended substitute for the obsolete LXH8-FW35-367. Both components maintain identical electrical specifications at the 700mA test current, including forward voltage (2.8V), color temperature (3500K), and color rendering index (80). Physical footprint and thermal characteristics are equivalent, ensuring direct PCB compatibility without layout modifications.

The substitute demonstrates improved luminous efficiency (121 lm/W versus 106 lm/W) and higher maximum current rating (1.2A versus 1.05A), providing enhanced performance headroom. Both parts maintain full ROHS3 compliance and unlimited moisture sensitivity classification (MSL 1), meeting identical regulatory and environmental requirements.

The transition from LUXEON T to LUXEON TX series represents a technology advancement within the same product family, with the substitute offering superior performance metrics while preserving all critical compatibility parameters.

Frequently Asked Questions (FAQ)

Q: Can the L1T2-3580300002500 be used as a direct replacement for the LXH8-FW35-367 without PCB modifications?

A: Yes. Both components share identical package configuration (2-SMD, No Lead Exposed Pad), footprint dimensions (3.70mm x 3.70mm), and maximum seated height (2.12mm). No PCB layout changes are required.

Q: Are the electrical characteristics compatible at the design operating point?

A: Yes. At the 700mA test current, both components specify 2.8V forward voltage and 80 CRI. The substitute maintains these specifications while offering improved efficiency and higher maximum current capability.

Q: What is the difference between LUXEON T and LUXEON TX series?

A: Both series are warm white LED products from Lumileds with identical color temperature (3500K) and viewing angle (120°). The LUXEON TX represents a newer generation with improved luminous efficiency and higher maximum current rating, while maintaining backward compatibility in electrical and mechanical specifications.

Q: Does the substitute meet the same compliance requirements?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity). Regulatory and environmental certifications are equivalent.

Q: What is the impact of the improved efficiency specification?

A: The substitute delivers 238lm at 85°C and 700mA compared to 208lm for the main part, representing approximately 14% higher luminous output at identical operating conditions. This improvement results from technology advancement in the LUXEON TX series.

Q: Is the packaging format change from bulk to Tape & Reel significant?

A: Tape & Reel packaging is standard for automated assembly processes and provides improved handling and storage characteristics. This format change does not affect component performance or compatibility.