LXH7-FW65 Equivalent & Substitute Parts

Part Overview

The LXH7-FW65 is a LUXEON T series surface mount LED from Lumileds, engineered for cool white lighting applications at 6500K color temperature. This component delivers 255 lm typical output at 85°C with a forward voltage of 2.8V and 700mA test current, housed in a compact 2-SMD package with no lead exposed pad. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

LXH7-FW65

LumiledsIn Stock: 1102LXH7-FW65 Datasheet

Current PartRFQ

LXH7-FW50

LumiledsIn Stock: 3360LXH7-FW50 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LXH7-FW65 is determined by strict alignment across the following critical parameters:

Electrical Compatibility Requirements:

• Forward voltage (Vf): 2.8V nominal
• Test current: 700mA
• Maximum current rating: 1.2A
• Lumens/Watt efficiency: 130 lm/W

Optical & Thermal Requirements:

• Flux output @ 85°C: 255 lm (Typ)
• Viewing angle: 120°
• Color Rendering Index (CRI): 70
• Thermal resistance: 3°C/W

Mechanical & Package Requirements:

• Package type: 2-SMD, No Lead Exposed Pad
• Physical dimensions: 3.70mm x 3.70mm
• Seated height: 2.12mm maximum
• Mounting type: Surface Mount

Compliance & Status Requirements:

• Series: LUXEON T
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

The LXH7-FW50 qualifies as a parametric equivalent substitute based on identical electrical, thermal, mechanical, and compliance specifications. The sole difference is color temperature (5000K versus 6500K), which does not affect electrical or thermal performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The LXH7-FW50 is a direct parametric equivalent to the LXH7-FW65 across all electrical, thermal, mechanical, and compliance dimensions. Both components share identical forward voltage, current ratings, flux output, efficiency, viewing angle, package geometry, and thermal characteristics. Both maintain ROHS3 compliance and MSL rating 1 status.

The substitution is valid for applications where the color temperature shift from 6500K (cool daylight) to 5000K (neutral white) is acceptable within system design parameters. Electrical circuit design, thermal management, and PCB layout considerations remain unchanged between the two parts.

Both components are classified as obsolete products. Procurement decisions should account for available inventory levels and long-term component availability planning.

Frequently Asked Questions (FAQ)

Q: Can LXH7-FW50 be used as a direct replacement for LXH7-FW65 in existing designs?

A: Yes, from an electrical and thermal standpoint. The LXH7-FW50 maintains identical forward voltage (2.8V), current ratings (700mA test, 1.2A max), flux output (255 lm @ 85°C), efficiency (130 lm/W), viewing angle (120°), and package dimensions (3.70mm x 3.70mm, 2.12mm height). The only difference is color temperature: 5000K versus 6500K. Substitution is valid if the application tolerates this color temperature change.

Q: What is the significance of the color temperature difference between 6500K and 5000K?

A: Color temperature affects perceived light quality. 6500K is classified as cool daylight white, while 5000K is neutral white. The shift is approximately 1500K cooler to warmer. This difference is perceptible in visual applications but does not affect electrical performance, power consumption, or thermal behavior.

Q: Are the package dimensions identical between LXH7-FW65 and LXH7-FW50?

A: Yes. Both components use the same 2-SMD package with no lead exposed pad, measuring 3.70mm x 3.70mm with a maximum seated height of 2.12mm. PCB footprints and assembly processes are identical.

Q: Do both parts have the same thermal characteristics?

A: Yes. Both the LXH7-FW65 and LXH7-FW50 have a thermal resistance of 3°C/W. Thermal management design and heat dissipation requirements are unchanged.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant and carry MSL rating 1 (Unlimited moisture sensitivity level). REACH status is unaffected for both parts.

Q: Are both parts currently in production?

A: No. Both the LXH7-FW65 and LXH7-FW50 are classified as obsolete products. Component selection should include consideration of available inventory and long-term sourcing strategy.