VLME3101-GS18 Equivalent & Substitute Parts

Part Overview

The VLME3101-GS18 is a yellow 588nm LED indicator in a 2-SMD, J-Lead surface mount package manufactured by Vishay Semiconductor Opto Division. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance applications. The part delivers 63mcd luminous intensity with a 2V forward voltage and 120° viewing angle, designed for discrete LED indication applications.

Substiute Parts

VLME3101-GS18

Vishay Semiconductor Opto DivisionIn Stock: 1157VLME3101-GS18 Datasheet

Current PartRFQ

VLME3100-GS08

Vishay Semiconductor Opto DivisionIn Stock: 7981VLME3100-GS08 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VLME3101-GS18 is determined by strict alignment of the following parameters:

• Color: Yellow (588nm dominant wavelength, 590nm peak wavelength)
• Voltage - Forward (Vf): 2V
• Current - Test: 10mA
• Package / Case: 2-SMD, J-Lead
• Mounting Type: Surface Mount
• Lens Style: Round with Flat Top
• Lens Size: 2.40mm Dia
• Physical Dimensions: 3.00mm L x 2.80mm W, 1.85mm Max Height
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 2A (4 Weeks)

The VLME3100-GS08 qualifies as a direct substitute based on matching all critical electrical, optical, and mechanical parameters. The primary difference is the millicandela rating (45mcd vs. 63mcd), which represents a reduction in luminous intensity. This difference is acceptable in applications where the lower brightness level meets circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The VLME3100-GS08 is the qualified substitute for the obsolete VLME3101-GS18. Selection is based on the following engineering criteria:

• Both parts maintain identical electrical characteristics (2V forward voltage, 10mA test current)
• Optical properties are preserved (588nm dominant wavelength, 590nm peak wavelength, 120° viewing angle)
• Physical form factor and mounting compatibility are identical (2-SMD, J-Lead package, 3.00mm L x 2.80mm W, 1.85mm max height)
• Compliance certifications are equivalent (ROHS3 Compliant, 2A MSL)
• The substitute part is in active production status, ensuring long-term availability
• The reduction in millicandela rating (45mcd vs. 63mcd) must be evaluated against circuit design requirements; applications tolerant of lower luminous intensity can proceed with direct substitution

Frequently Asked Questions (FAQ)

Q: Can VLME3100-GS08 be used as a direct replacement for VLME3101-GS18 in all applications?

A: The VLME3100-GS08 is electrically and mechanically compatible with the VLME3101-GS18. The primary consideration is the reduced millicandela rating (45mcd vs. 63mcd). Applications requiring the original brightness level must evaluate whether the lower intensity meets functional requirements.

Q: What is the difference between the two part numbers?

A: Both parts are yellow 588nm LEDs in identical 2-SMD, J-Lead packages with matching electrical specifications. The VLME3100-GS08 delivers lower luminous intensity (45mcd) compared to the VLME3101-GS18 (63mcd). The VLME3100-GS08 is available in Tape & Reel packaging, while the VLME3101-GS18 was supplied in bulk format.

Q: Is the VLME3100-GS08 RoHS compliant?

A: Yes, the VLME3100-GS08 is ROHS3 Compliant and maintains the same moisture sensitivity level (2A, 4 Weeks) as the original part.

Q: What is the mounting compatibility?

A: Both parts are surface mount components with identical physical dimensions (3.00mm L x 2.80mm W, 1.85mm max height) and 2-SMD, J-Lead package configuration. PCB footprints and reflow profiles are compatible.

Q: Why is the original part obsolete?

A: The VLME3101-GS18 has been discontinued by Vishay Semiconductor Opto Division. The VLME3100-GS08 remains in active production and serves as the current equivalent for new designs and replacement applications.