VLMS3101-GS18 Equivalent & Substitute Parts

Part Overview

The VLMS3101-GS18 is a red 630nm LED indication component in a 2-SMD, J-Lead surface mount package manufactured by Vishay Semiconductor Opto Division. This part is classified as obsolete, making identification of suitable substitute components essential for ongoing production and design requirements. The component operates at 2V forward voltage with a 10mA test current and delivers 8mcd luminous intensity through a clear round lens with 120° viewing angle.

Substiute Parts

VLMS3101-GS18

Vishay Semiconductor Opto DivisionIn Stock: 1236VLMS3101-GS18 Datasheet

Current PartRFQ

VLMS3100-GS08

Vishay Semiconductor Opto DivisionIn Stock: 1827VLMS3100-GS08 Datasheet

DirectRFQ

VLMS30J1K2-GS08

Vishay Semiconductor Opto DivisionIn Stock: 814VLMS30J1K2-GS08 Datasheet

Parametric EquivalentRFQ

VLMS31J1K2-GS08

Vishay Semiconductor Opto DivisionIn Stock: 15523VLMS31J1K2-GS08 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLMS3101-GS18 is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

• Package / Case: 2-SMD, J-Lead
• Mounting Type: Surface Mount
• Lens Size: 2.40mm Dia
• Size / Dimension: 3.00mm L x 2.80mm W
• Height (Max): 1.85mm
• Color: Red
• Viewing Angle: 120°
• Lens Transparency: Clear
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 2A (4 Weeks)

Allowable Variation Parameters:

• Voltage - Forward (Vf) (Typ): ±0.2V tolerance
• Current - Test: Operational range 2mA to 10mA
• Millicandela Rating: ±1mcd tolerance
• Wavelength - Dominant: 630nm ±5nm
• Wavelength - Peak: 635nm to 643nm range
• Product Status: Active or Obsolete

The three identified substitute parts meet all mandatory matching criteria while operating within allowable variation ranges for electrical and optical parameters.

Parameter Comparison

Engineering Selection Recommendations

VLMS3100-GS08 is the direct manufacturer equivalent with active product status. This part maintains identical forward voltage (2V) and test current (10mA) specifications. The millicandela rating of 7.1mcd represents a 0.9mcd reduction from the main part, operating within acceptable tolerance for indication applications. This part is available in Tape & Reel packaging and carries full ROHS3 compliance and REACH Unaffected status.

VLMS30J1K2-GS08 is a parametric equivalent offering reduced forward voltage (1.8V) and lower test current (2mA), resulting in decreased power consumption. The millicandela rating matches the main part at 8mcd. This configuration is suitable for applications where lower operating current is beneficial. Active product status and full compliance certifications apply.

VLMS31J1K2-GS08 is a parametric equivalent with forward voltage of 1.9V and test current of 10mA. The millicandela rating matches the main part at 8mcd. This part offers the highest inventory availability (15,433 pcs) among all substitutes. Active product status and full compliance certifications apply.

All three substitute parts maintain identical mechanical dimensions, package configuration, and environmental compliance requirements as the obsolete VLMS3101-GS18.

Frequently Asked Questions (FAQ)

Q: Can VLMS3100-GS08 be used as a direct replacement for VLMS3101-GS18?

A: Yes. VLMS3100-GS08 is the direct manufacturer equivalent with identical forward voltage (2V), test current (10mA), and mechanical specifications. The 0.9mcd reduction in luminous intensity falls within acceptable tolerance for indication applications. Both parts share identical package configuration, dimensions, and compliance status.

Q: What is the difference between the three substitute parts?

A: The primary differences are forward voltage and test current specifications. VLMS3100-GS08 matches the main part at 2V/10mA. VLMS30J1K2-GS08 operates at 1.8V/2mA for reduced power consumption. VLMS31J1K2-GS08 operates at 1.9V/10mA. All three maintain 8mcd luminous intensity and identical mechanical dimensions.

Q: Are there packaging differences between these parts?

A: The main part (VLMS3101-GS18) does not specify packaging format. All three substitute parts are available in Tape & Reel (TR) packaging. The 2-PLCC supplier device package and 2-SMD, J-Lead case configuration remain consistent across all parts.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All three substitute parts are ROHS3 compliant, REACH Unaffected, and carry identical Moisture Sensitivity Level (2A, 4 Weeks) specifications. Environmental and regulatory compliance is maintained across all substitutions.

Q: Which substitute part should be selected for new designs?

A: Selection depends on circuit requirements. For direct electrical equivalence, use VLMS3100-GS08. For reduced power consumption applications, use VLMS30J1K2-GS08. For maximum inventory availability, use VLMS31J1K2-GS08. All three are active products suitable for ongoing production.

Q: What is the wavelength variation across substitute parts?

A: Dominant wavelength remains 630nm across all parts. Peak wavelength varies: VLMS3100-GS08 at 640nm, VLMS30J1K2-GS08 at 635nm, and VLMS31J1K2-GS08 at 643nm. These variations fall within the acceptable range for red LED indication applications.