VLMS3100-GS18 Equivalent & Substitute Parts

Part Overview

The VLMS3100-GS18 is a red 630nm LED indication component in 2-SMD, J-Lead surface mount packaging manufactured by Vishay Semiconductor Opto Division. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The component features a clear lens with 2.40mm diameter round flat-top design, forward voltage of 2V at 10mA test current, and 7.1mcd luminous intensity. Substitute parts must maintain mechanical compatibility, optical characteristics, and electrical performance within acceptable design tolerances.

Substiute Parts

VLMS3100-GS18

Vishay Semiconductor Opto DivisionIn Stock: 983VLMS3100-GS18 Datasheet

Current PartRFQ

VLMS30J1K2-GS08

Vishay Semiconductor Opto DivisionIn Stock: 814VLMS30J1K2-GS08 Datasheet

Parametric EquivalentRFQ

VLMS3100-GS08

Vishay Semiconductor Opto DivisionIn Stock: 1827VLMS3100-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 VLMS3100-GS18 is determined by the following critical parameters:

Mechanical Compatibility: Package type (2-SMD, J-Lead), physical dimensions (3.00mm L x 2.80mm W, 1.85mm max height), lens size (2.40mm diameter), and lens style (round with flat top) must remain identical to ensure PCB footprint and assembly compatibility.

Optical Characteristics: Dominant wavelength (630nm) and lens transparency (clear) must match to maintain intended indication color and visibility.

Electrical Performance: Forward voltage (Vf) and test current determine circuit design compatibility. Substitute parts with Vf between 1.8V and 2V and test current between 2mA and 10mA are acceptable within standard LED circuit design tolerances.

Luminous Intensity: Millicandela rating between 7.1mcd and 8mcd maintains consistent brightness performance.

Compliance: RoHS3 compliance and MSL rating (2A, 4 Weeks) must be maintained.

Three substitute parts meet these criteria: VLMS3100-GS08, VLMS30J1K2-GS08, and VLMS31J1K2-GS08.

Parameter Comparison

Engineering Selection Recommendations

VLMS3100-GS08: Direct electrical and optical equivalent with identical forward voltage (2V) and test current (10mA). Active product status ensures long-term availability. Packaging format is Tape & Reel, suitable for high-volume production. Select this part for designs requiring exact electrical matching to the original VLMS3100-GS18.

VLMS31J1K2-GS08: Highest inventory availability (15433 Pcs) with active product status. Forward voltage of 1.9V and test current of 10mA provide near-identical electrical performance. Millicandela rating of 8mcd offers slightly enhanced brightness. Peak wavelength of 643nm remains within acceptable red LED specification range. Recommended for new designs prioritizing supply chain stability and component availability.

VLMS30J1K2-GS08: Lower test current (2mA) and reduced forward voltage (1.8V) require circuit design evaluation. Millicandela rating of 8mcd compensates for lower test current. Peak wavelength of 635nm maintains red indication. Select only when circuit design accommodates reduced current requirements and lower forward voltage operation.

All substitute parts maintain ROHS3 compliance, identical MSL rating (2A, 4 Weeks), and mechanical compatibility with the original part.

Frequently Asked Questions (FAQ)

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

A: Yes. VLMS3100-GS08 is electrically and optically identical to VLMS3100-GS18, with matching forward voltage (2V), test current (10mA), wavelength (630nm dominant, 640nm peak), and millicandela rating (7.1mcd). The only difference is packaging format (Tape & Reel versus bulk). PCB footprint and circuit performance remain unchanged.

Q: What is the difference between VLMS31J1K2-GS08 and VLMS30J1K2-GS08?

A: VLMS31J1K2-GS08 operates at 1.9V forward voltage with 10mA test current, while VLMS30J1K2-GS08 operates at 1.8V with 2mA test current. Both provide 8mcd brightness. VLMS31J1K2-GS08 is preferred for designs using standard 10mA LED circuit configurations. VLMS30J1K2-GS08 requires circuit redesign to accommodate lower current operation.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts share identical package specifications (2-SMD, J-Lead), physical dimensions (3.00mm L x 2.80mm W), height (1.85mm max), and lens size (2.40mm diameter). PCB footprint and assembly process remain unchanged.

Q: Do substitute parts maintain the same compliance certifications?

A: Yes. All substitute parts are ROHS3 compliant with identical Moisture Sensitivity Level (2A, 4 Weeks). Compliance certifications and handling requirements remain unchanged from the original VLMS3100-GS18.

Q: Which substitute part offers the best supply chain availability?

A: VLMS31J1K2-GS08 provides the highest inventory availability at 15433 Pcs with active product status, ensuring long-term procurement stability and reduced lead times.

Q: Can VLMS30J1K2-GS08 be used in existing circuit designs without modification?

A: No. VLMS30J1K2-GS08 operates at 1.8V forward voltage and 2mA test current, differing from the original 2V and 10mA specification. Circuit redesign is required to accommodate the reduced voltage and current requirements.