C4SMB-GGF-CX3Z4792 Equivalent & Substitute Parts

Part Overview

The C4SMB-GGF-CX3Z4792 is a green LED indication component manufactured by CreeLED, Inc., featuring a 4mm oval clear lens with through-hole radial mounting. This part operates at 3V forward voltage with a 20mA test current and delivers 8510mcd brightness at 528nm dominant wavelength. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

C4SMB-GGF-CX3Z4792

CreeLED, Inc.In Stock: 1138C4SMB-GGF-CX3Z4792 Datasheet

Current PartRFQ

C566D-GFE-CX0Z0792

CreeLED, Inc.In Stock: 1293C566D-GFE-CX0Z0792 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the C4SMB-GGF-CX3Z4792 is determined by the following critical parameters:

• Color and Wavelength: Green spectrum operation (527–528nm dominant wavelength)
• Mounting Configuration: Through-hole radial mounting
• Electrical Characteristics: Forward voltage range (3.0–3.4V) and test current (20mA)
• Brightness Class: Millicandela rating within acceptable operational range (8090–8510mcd)
• Compliance: RoHS compliance and REACH unaffected status
• Series Compatibility: Screen Master® product line

The substitute part C566D-GFE-CX0Z0792 meets these criteria while introducing a diffused lens variant and increased physical dimensions. Both parts operate within compatible electrical parameters and maintain equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The C566D-GFE-CX0Z0792 is an active product substitute for the obsolete C4SMB-GGF-CX3Z4792. Both components maintain RoHS compliance and REACH unaffected status, ensuring regulatory continuity.

Key considerations for selection:

• Electrical Compatibility: Forward voltage increases from 3V to 3.4V. Circuit designs must accommodate this 0.4V differential in series resistor calculations.
• Optical Characteristics: The substitute features a diffused lens versus clear lens, altering light distribution. Brightness remains within 5% variance (8090mcd vs 8510mcd).
• Physical Footprint: The substitute is shorter (7.80mm vs 10.50mm) with larger lens dimensions (5.20mm x 4.60mm vs 3.90mm x 3.00mm). PCB layout and mechanical clearance must be verified.
• Moisture Sensitivity: The substitute offers superior moisture protection (MSL 1 vs MSL 5A), beneficial for long-term storage and humid environments.
• Availability: The substitute is in active production with 1186 units in stock, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can C566D-GFE-CX0Z0792 directly replace C4SMB-GGF-CX3Z4792 without circuit modification?

A: No. The forward voltage difference (3V to 3.4V) requires recalculation of series resistor values to maintain correct LED current. The diffused lens also changes light distribution characteristics.

Q: What is the impact of the diffused lens on optical performance?

A: The diffused lens scatters light over a wider viewing angle (70° x 30°) compared to the clear lens. This reduces peak intensity in the direct viewing axis but improves visibility from off-axis positions.

Q: Are both parts compatible with the same PCB footprint?

A: Both use radial through-hole mounting, but physical dimensions differ. The substitute is shorter (7.80mm vs 10.50mm) and has a larger lens. PCB hole spacing remains compatible, but mechanical clearance and visual alignment must be assessed.

Q: What are the compliance implications of switching to the substitute?

A: Both parts maintain RoHS compliance and REACH unaffected status. No regulatory barriers exist for substitution.

Q: Why does the substitute have better moisture sensitivity (MSL 1)?

A: MSL 1 indicates unlimited shelf life under standard conditions, whereas MSL 5A limits storage to 24 hours after packaging opening. The substitute offers superior long-term reliability in storage and deployment.