VLMR32ABBB-GS08 Equivalent & Substitute Parts

Part Overview

The VLMR32ABBB-GS08 is a red 625nm LED indication component in 4-PLCC surface mount packaging manufactured by Vishay Semiconductor Opto Division. This part is classified as obsolete, making identification of suitable substitute components necessary for ongoing production and maintenance applications. The component delivers 2100mcd at 50mA test current with a 2.2V typical forward voltage and 120° viewing angle, designed for automotive-grade applications with AEC-Q101 qualification.

Substiute Parts

VLMR32ABBB-GS08

Vishay Semiconductor Opto DivisionIn Stock: 809VLMR32ABBB-GS08 Datasheet

Current PartRFQ

CLM4B-RKW-CWBXBAA3

CreeLED, Inc.In Stock: 29382CLM4B-RKW-CWBXBAA3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLMR32ABBB-GS08 is determined by the following critical parameters:

Package compatibility: 4-PLCC surface mount package with matching footprint dimensions (3.20mm L x 2.80mm W maximum)

Optical characteristics: Red wavelength in the 624-625nm dominant wavelength range with equivalent 2100mcd luminous intensity

Electrical performance: Forward voltage within acceptable operating range (2.2-2.4V typical) at 50mA test current

Mechanical fit: Maximum height not exceeding 2.10mm to ensure PCB assembly compatibility

Environmental compliance: RoHS compliance and REACH unaffected status for regulatory alignment

The CLM4B-RKW-CWBXBAA3 from CreeLED, Inc. meets these substitution criteria through matching package geometry, equivalent optical output, compatible electrical characteristics, and compliant regulatory status.

Parameter Comparison

Engineering Selection Recommendations

The CLM4B-RKW-CWBXBAA3 is the designated substitute for the obsolete VLMR32ABBB-GS08. Selection is based on the following engineering criteria:

Active product status: The substitute maintains current manufacturing and supply chain availability, eliminating obsolescence risk associated with the main part.

Regulatory compliance: Both components maintain RoHS and REACH compliance, ensuring regulatory alignment for automotive and industrial applications.

Package and mechanical compatibility: Identical 4-PLCC package footprint with dimensions within acceptable tolerance (3.20mm L x 2.70mm W versus 3.20mm L x 2.80mm W) and reduced maximum height (2.05mm versus 2.10mm) ensures direct PCB assembly compatibility.

Optical and electrical equivalence: Matching 2100mcd luminous intensity and 50mA test current with dominant wavelength within 1nm variance (624nm versus 625nm) maintains functional performance in indication applications.

Forward voltage consideration: The 0.2V increase in typical forward voltage (2.4V versus 2.2V) requires circuit-level verification to confirm compatibility with existing current-limiting resistor designs and power supply specifications.

Frequently Asked Questions (FAQ)

Q: Can the CLM4B-RKW-CWBXBAA3 be used as a direct drop-in replacement for the VLMR32ABBB-GS08?

A: The CLM4B-RKW-CWBXBAA3 is mechanically and optically compatible with the VLMR32ABBB-GS08 in 4-PLCC surface mount applications. However, the 0.2V increase in forward voltage requires verification of circuit design compatibility, particularly in current-limiting resistor calculations and power supply margin analysis.

Q: What are the key differences between these two parts?

A: The primary differences are product status (obsolete versus active), forward voltage (2.2V versus 2.4V), and packaging format (Cut Tape versus Tape & Reel). Optical output, package geometry, and compliance certifications are equivalent.

Q: Are there any height or footprint concerns with this substitution?

A: No. The substitute part has a smaller maximum height (2.05mm versus 2.10mm) and marginally narrower width (2.70mm versus 2.80mm), both favorable for PCB assembly compatibility. The 3.20mm length is identical.

Q: Does the wavelength difference of 1nm affect application performance?

A: The 1nm wavelength difference (624nm versus 625nm) is within the red LED spectrum and does not affect visual indication performance in standard applications. Both wavelengths are classified as red indication LEDs.

Q: What compliance certifications apply to the substitute part?

A: The CLM4B-RKW-CWBXBAA3 maintains RoHS compliance and REACH unaffected status, matching the regulatory requirements of the original part. Note that the original part carries AEC-Q101 automotive qualification; verify whether this certification is required for your specific application.

Q: How does the packaging format change from Cut Tape to Tape & Reel affect procurement?

A: Tape & Reel packaging is standard for high-volume production and offers improved handling efficiency. Cut Tape is typically used for lower-volume or manual assembly scenarios. Procurement and assembly processes should be adjusted accordingly.